Malicious PDF — malware analysis report

Static analysis result for SHA-256 32a9665c3c03f2f1…

MALICIOUS

PDF

69.9 KB Created: 2020-12-19 11:00:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 5064b07000beb5b4eb46f7598dcebfaf SHA-1: 283384a6cd73273af1eea5e165b3c079ba6d203e SHA-256: 32a9665c3c03f2f1c88b4e4c5abc169f6b8b1eeec2b4313618e2537b530cfe8e
96 Risk Score

Malware Insights

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

The file is a PDF document flagged as malicious by ML classifiers and ClamAV. It contains an embedded URI pointing to 'trafffi.ru', which is likely a phishing lure disguised as a link to a VBA guide. No scripts were extracted, but the presence of the malicious URL and the ML detection strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://trafffi.ru/123?utm_term=excel+vba+for+dummies+2016+pdf PDF link annotation
    • https://sotokogel.weebly.com/uploads/1/3/4/2/134266154/puragodib_getadigirifanol_zejilu_vininozavuf.pdfIn PDF document text
    • https://sifumoxijobobo.weebly.com/uploads/1/3/4/4/134493963/2cc3efdd1f8.pdfIn PDF document text
    • https://gabejudunutulan.weebly.com/uploads/1/3/4/8/134887900/jejenakarurob-rawivu-vilobafi-wukulezaze.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418777/normal_5fd81857671e8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474448/normal_5fd84d525bb38.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static1.squarespace.com/static/5fc78baf81da8a590db12806/t/5fd1499bf09ee25c6a93dd23/1607551388421/xugepa.pdfIn PDF document text
    • https://s3.amazonaws.com/firigugixujotov/prisoner_cell_block_h_episodes_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/tixedujegibex/75424348986.pdfIn PDF document text
    • https://s3.amazonaws.com/fosalizuzu/24679734384.pdfIn PDF document text
    • https://s3.amazonaws.com/jutenojamega/assumptions_of_dependency_theory.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd0ddc68bfc518616a3e70/1606225374518/wiwusum.pdfIn PDF document text
    • https://s3.amazonaws.com/wotodedaruzuk/guild_wars_1_hero_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/fat_ninja_bite.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.

FilenameKindSourceSize
font_00_sfnt_off0000cd4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD4A 6008 bytes
SHA-256: 2f672f50d7873aa217bd685c0a906aba1b88fc15bc7ffbadcde7603f868b46ab
font_01_sfnt_off0000e1b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1B2 13016 bytes
SHA-256: 96751514f380d527f2ad89f8d14be9085a61d209df0999b67cbea9859b7d0dfc