Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3ad97f579369a93…

MALICIOUS

PDF

70.9 KB Created: 2020-12-03 14:40:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 2742281d43c203a1f2ad92a9f4d33ef2 SHA-1: 191d072226eb21fa5148d8736186ebfca6c841c2 SHA-256: c3ad97f579369a93b2a771ecb775f48a2e7c31bec8e05bc63ae74a425adca6b6
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file was identified as malicious by ClamAV and an ML classifier, indicating a phishing or malicious intent. It contains a large number of external links, many of which point to PDF files, suggesting a link farm or SEO manipulation tactic. The embedded URL 'https://trafftec.ru/123?utm_term=under+armour+headbands+women%2527s+amazon' further supports the idea of a lure to external content, possibly for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://trafftec.ru/123?utm_term=under+armour+headbands+women%2527s+amazon PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4380530/normal_5f8ae7c182571.pdfIn PDF document text
    • https://kubamugikogili.weebly.com/uploads/1/3/4/5/134508843/19a5b2e7f97990d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365591/normal_5f875b85c3d9d.pdfIn PDF document text
    • https://sepenunaxob.weebly.com/uploads/1/3/0/7/130776074/dd15211145cf3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452398/normal_5fb727e122ebe.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://static1.squarespace.com/static/5fc4e5cef7cf8c75404468c7/t/5fc68d8f61e25426e11c8a02/1606847888702/7236380708.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd1edf106e860cb96fc661/1606229727513/motixonutugobat.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc52a646b97992eb5777856/t/5fc878b3dcb5b260797d13d2/1606973623446/mymetro_account_number.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd395ab1bce45946f65cdc/1606236506579/linimukuwenutibotagide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/52975d55-558f-48aa-926d-ebb598658d9d/68924714861.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0c362403f5353fd950a5e/t/5fc105e0e18c5c478e201796/1606485472936/dame_la_mano_paloma_guitarra.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aed5d107-3ffc-4bbc-96f1-45dd1f7787b2/61633984846.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc37bd13dfdd95b60e57127/t/5fc4ee923c02f22b9da75fd4/1606741650730/trends_of_the_periodic_table_worksheet_part_1.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cc41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC41 5092 bytes
SHA-256: 7d9c6aebe4357dcb5ce6d9a0907c15cdd8181e609845fb7ff4c8a003d9d710ce
font_01_sfnt_off0000dd6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD6A 10220 bytes
SHA-256: b2c40f03b7516491ed08faae13d1833a87c009091a75bab2651a59f0a70017d8
font_02_sfnt_off00010085.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10085 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

Open this report in the interactive analyzer, or submit your own file for analysis.