PDF malware analysis — malicious · d809b7088efc0a1d

MALICIOUS

PDF

65.2 KB Created: 2020-12-19 22:38:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15

MD5: a2a4c7ea594e889db12023ff32d5d563 SHA-1: e5ec82bfc2e6f63a33c7bbb37f74bfcd774fbe8e SHA-256: d809b7088efc0a1d4db801a75cfa5cac4762659e3288631521118b5399e1a121

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URL pointing to 'traffine.ru', which is likely part of a phishing or malware distribution scheme. Although no scripts were explicitly extracted, the PDF structure and the presence of external URIs suggest it's designed to redirect the user to a malicious site, potentially for credential harvesting or further payload delivery.

Machine Learning

Nyx PDF Classifier malicious score 0.9995

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://traffine.ru/aws?utm_term=coorg+tourist+guide PDF link annotation
- https://cdn-cms.f-static.net/uploads/4374521/normal_5f966be4a3fe6.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4386593/normal_5fb5618751af2.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4416150/normal_5fc87270db6e2.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4379221/normal_5fca5cece9ef5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4446776/normal_5fa81f4ce1bb8.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4480743/normal_5fa607c64f40e.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/tubukeganuji/sodef.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a9c72c8c-2ab6-432e-aad4-645a19ad4e11/86455443940.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/bb393238-abfe-48af-a56b-0a1a1d4d7965/gevolevebugokelozumapes.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/72490398-242c-4b7f-9781-55b3e18364e7/7588631818.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000c67f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC67F	4656 bytes
SHA-256: `6394c89bd88bb82a8c39c679828e7e060e4bb79ab2ddae4c689570acd00e982c`
`font_01_sfnt_off0000d665.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD665	10104 bytes
SHA-256: `c88b09fef05c7bed7c5b403b3dd0594e9f85956d97d428ee4a603f672bc79760`

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