Documents

VerifAI Docs - File manipulation detection - NEW (PF99)

Returns information about digital manipulations in files, such as social contracts, invoices, receipts, etc., through metadata analysis. For greater accuracy, it is recommended to send files in PDF format.

Section: pfVerifaiDocs

Required files: Any file in .pdf, .jpg, or .jpeg format

Optional parameter: CPF

Attribute

Type

Description

statusCode

String

Query status (details)

message

String

Query result descriptive message

data

Array

A list with the analysis results for each submitted document

data[x].status

String

Status of the analysis

data[x].analysisTime

String

Timestamp of analysis

data[x].queryId

String

Internal ID of the analysis

data[x].sha256

String

Sha256 of the input file

data[x].fileType

String

Type of analyzed document

data[x].mimeType

String

Mime type of the input document : application/pdf, image/jpeg

data[x].score

String

Fraud score produced by the document analysis: NORMAL, TRUSTED, WARNING, HIGH_RISK

data[x].decision

String

Level of risk associated with the analyzed document: LOW_RISK, MEDIUM_RISK, HIGH_RISK

data[x].numPages

String

Number of pages in submitted document

data[x].fileName

String

File name

data[x].submissionId

String

Document unique identifier

data[x].reason

Object

Details object describing the reason for the decision

data[x].reason.subReason

Object

Details object describing the reason for the decision

data[x].reason.subReason.value

String

Reason label

data[x].reason.subReason.label

String

Reason description

data[x].sampleMetadata

Object

Metadata of an analyzed document

data[x].sampleMetadata.producer

String

Document produce

data[x].sampleMetadata.creator

String

Document creator

data[x].sampleMetadata.creationDate

String

Document creation date

data[x].sampleMetadata.modDate

String

Document modification date

data[x].sampleMetadata.author

String

Document author

data[x].sampleMetadata.title

String

Document title

data[x].sampleMetadata.keywords

String

Document keywords

data[x].sampleMetadata.subject

String

Document subject

data[x].indicators

Array of objects

Detailed information about the specific results of the analysis. This field contains detailed observations that the system was able to make about the file

data[x].indicators[x].type

String

Type of a quality indicator: RISK, TRUST, INFO

data[x].indicators[x].category

String

Category of indicator

data[x].indicators[x].title

String

Indicator title

data[x].indicators[x].description

String

Description of the indicator

data[x].indicators[x].origin

String

Indicator origin: fraud, quality

data[x].documentClass

Object

The type of file submitted for analysis

data[x].documentClass.id

String

Document type ID

data[x].documentClass.type

String

Document type

data[x].documentClass.detailedType

String

Document type detailed

{
  "pfVerifaiDocs": {
    "statusCode": "01",
    "data": [
      {
        "status": "SUCCESS",
        "analysisTime": "2025-07-01T19:39:20.605088Z",
        "deploymentVersion": "4f59fea5",
        "queryId": "3512299f-8385-4152-93c2-eaa2dea85983-6864382d16941a000265d233-conta-internet-20-05",
        "fileType": "pdf",
        "mimeType": "application/pdf",
        "sha256": "63d5d349a6610d048c05a620aa3f7afbda3be2686c6791418ac8c7d2b099db71",
        "score": "HIGH_RISK",
        "sampleMetadata": {
          "producer": "Producer 1.91a ",
          "creator": "Dox PDF",
          "creationDate": "2024-12-20T09:41:35+01:00",
          "modDate": "2025-01-09T17:48:56+01:00",
          "author": "Document Designer Development Group",
          "title": "Vivo conta 20/05/2025",
          "keywords": "Ver 6.0",
          "subject": "Internet"
        },
        "indicators": [
          {
            "type": "RISK",
            "category": "document_structure",
            "title": "Known document with unexpected patterns",
            "description": "We’ve seen many documents like this from Telefonica Brasil S.A., and this one stands out - in the wrong way. Its structure, layout, and other elements don’t follow the expected pattern. These clues strongly suggest the document was modified, recreated, or produced using different software.",
            "origin": "fraud"
          },
          {
            "type": "RISK",
            "category": "modifications",
            "title": "Content was modified",
            "description": "This document was produced in several versions. This version of the document differs from the original.",
            "origin": "fraud"
          },
          {
            "type": "RISK",
            "category": "modifications",
            "title": "Edited using editor",
            "description": "This document contains tags used by PDF editors, which indicate modifications of the document.",
            "origin": "fraud"
          },
          {
            "type": "TRUST",
            "category": "visual_appearance",
            "title": "Telefonica Brasil S.A. logo",
            "description": "This document contains a logo commonly associated with Telefonica Brasil S.A., suggesting it was issued by that utility.",
            "origin": "fraud"
          },
          {
            "type": "RISK",
            "category": "metadata_modifications",
            "title": "Evidence of modification based on document metadata",
            "description": "Time of creation is 2024-12-20T08:41:35+00:00 but the time of modification is 2025-01-09T16:48:56+00:00. This may indicate that the document was updated or modified. The time span between creation and modification is 20 days, 8:07:21.",
            "origin": "fraud"
          },
          {
            "type": "RISK",
            "category": "modifications",
            "title": "Anomalous fonts",
            "description": "Some of the fonts in use here are not typically used by the issuer in this kind of document.",
            "origin": "fraud"
          },
          {
            "type": "RISK",
            "category": "anomalous_metadata",
            "title": "Document has anomalous metadata",
            "description": "The metadata (creator, producer, etc.) differs from the typical document from the same issuer. ",
            "origin": "fraud"
          }
        ],
        "documentClass": {
          "id": "utility_bill_vivo",
          "type": "utility_bill",
          "documentClassType": "UtilityBillDocumentClass",
          "detailedType": "internet_mobile_television"
        },
        "numPages": 3,
        "fileName": "conta-internet-20-05.pdf",
        "submissionId": "bdd50bc4-fa5c-46ba-a9d6-5c715af98daa",
        "decision": "HIGH_RISK",
        "reason": {
          "subReason": {
            "value": "DIGITAL_MODIFICATION_HIGH_CONFIDENCE",
            "label": "Document contains traces of digital modification, likely with fraudulent intent"
          }
        }
      },
      {
          "status": "SUCCESS",
          "analysisTime": "2025-07-02T13:11:30.099104Z",
          "deploymentVersion": "4f59fea5",
          "queryId": "49dc9bda-fa86-41c0-9c9c-8a8cff5e6ecd-68652fdfdf165d00021c9f44-comprovante-pix",
          "fileType": "pdf",
          "mimeType": "application/pdf",
          "sha256": "55662b513518cf0bedf695febedbfd489924b1ec92de3aabfdc6dcf97e2822dc",
          "score": "NORMAL",
          "sampleMetadata": {
            "producer": "mPDF 7.1.9",
            "creator": null,
            "creationDate": "2019-11-29T06:33:40+03:00",
            "modDate": "2019-11-29T06:33:40+03:00",
            "author": null,
            "title": "Tiny",
            "keywords": null,
            "subject": null
          },
          "indicators": [
            {
              "indicatorId": "is_pdf_unmodified_per_metadata",
              "type": "TRUST",
              "category": "authenticity",
              "title": "No modification in document metadata",
              "description": "Timestamps in this document's metadata do not indicate that the file was incrementally updated or modified.",
              "origin": "fraud"
            },
            {
              "indicatorId": "has_mpdf_metadata",
              "type": "INFO",
              "category": "known_creator",
              "title": "Saved in mPDF",
              "description": "The document was processed and saved in mPDF - software library (PHP language) for generating PDF files from HTML documents.",
              "origin": "fraud"
            }
          ],
          "documentClass": {
            "id": "unknown",
            "type": "unknown",
            "documentClassType": "DocumentClass"
          },
          "numPages": 1,
          "fileName": "comprovante-pix.pdf",
          "submissionId": "a441c5d6-b2d2-4fef-8aaa-799ae7308f4b",
          "decision": "LOW_RISK",
          "reason": {
            "subReason": {
              "value": "NO_DIGITAL_MODIFICATION",
              "label": "Document shows no signs of digital modification"
            }
          }
        }
    ]
  }
}

Last updated 14 days ago