Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd8cfc41bb926d18…

MALICIOUS

PDF

69.6 KB Created: 2020-11-13 06:47:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a100c27713e07414ede1d9ab3ca4efd5 SHA-1: d3673349d5b9787a2aa2df84bf13e0846be12d11 SHA-256: cd8cfc41bb926d18d5fbeca7489623269fcc26b3201ef6c4ddb55aa43d67b5d0
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 'trafftec.ru', which is likely used to host or redirect to a malicious payload. The document body, though partially corrupted, suggests a lure related to downloading a manual, consistent with phishing or social engineering tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://trafftec.ru/123?utm_term=hollander+interchange+manual+pdf+download
    • https://bikiwilusi.weebly.com/uploads/1/3/4/5/134512037/7361956.pdf
    • https://cdn-cms.f-static.net/uploads/4366400/normal_5f87404c51811.pdf
    • https://cdn-cms.f-static.net/uploads/4393776/normal_5f9ba27d05e43.pdf
    • https://megeleju.weebly.com/uploads/1/3/4/3/134319984/fujonamiv.pdf
    • https://cdn-cms.f-static.net/uploads/4385012/normal_5f908bb78e550.pdf
    • https://jezitazosebizag.weebly.com/uploads/1/3/4/7/134700096/2796375.pdf
    • https://cdn-cms.f-static.net/uploads/4367922/normal_5fa15f45d724f.pdf
    • https://cdn-cms.f-static.net/uploads/4424331/normal_5f98ec280250a.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/c4f04a74-e49f-4b1a-bed1-d723dd5f72ac/mosunuzox.pdf
    • https://uploads.strikinglycdn.com/files/e293bcbc-feb4-4e61-afd8-75026c9187ef/kejununakanesupazareme.pdf
    • https://s3.amazonaws.com/rilexazejuzovep/59393908854.pdf
    • https://uploads.strikinglycdn.com/files/eb46fe78-de7c-45d6-9a74-f7e4bdb88d94/suvavaxodosudawa.pdf
    • https://uploads.strikinglycdn.com/files/a445df16-7245-413d-88e3-5b49c26085c5/63650090240.pdf
    • https://uploads.strikinglycdn.com/files/fc875905-a603-4762-af3e-48f6a38f8ca6/king_andrew_the_first_political_cart.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d201.bin
bcfe2eca91780cc16497a6c8f708528bd353cf1e2b8dab28c628fb0841d9eded		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD201 5444 bytes
font_01_sfnt_off0000e46b.bin
ef58b4d395105faf92fc8ab14b582b9e485ab75ee97620774b138afdccd96f4b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE46B 10712 bytes

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