Malicious PDF — malware analysis report

Static analysis result for SHA-256 2181c2af4a660ef7…

MALICIOUS

PDF

57.9 KB Created: 2020-12-19 16:40:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ff946732dee1bc71e92f273986cd99da SHA-1: e7e606a33ce51f03eb256111121bbe91e05fdbe0 SHA-256: 2181c2af4a660ef743913e1e5d88b53d8278de7e0fb51ebcb408d2e59628831d
94 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains an embedded URL pointing to 'trafftec.ru', which is likely part of a phishing campaign. The document body, though heavily obfuscated, contains keywords related to business plans, suggesting a lure to trick users into visiting the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8892

Heuristics 3

  • 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
  • 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/strik?utm_term=pharmaceutical+business+plans
    • https://cdn-cms.f-static.net/uploads/4450502/normal_5fa6a8132266e.pdf
    • https://fakimodixoto.weebly.com/uploads/1/3/0/7/130739088/8b6c19268.pdf
    • https://cdn-cms.f-static.net/uploads/4413705/normal_5fbf6b5b59dc0.pdf
    • https://cdn-cms.f-static.net/uploads/4473340/normal_5fb3fdb416be3.pdf
    • https://gubilipolijig.weebly.com/uploads/1/3/4/7/134707964/a7b267.pdf
    • https://jizexukufi.weebly.com/uploads/1/3/4/1/134109318/7510861.pdf
    • https://gobexuxiwabi.weebly.com/uploads/1/3/4/3/134372757/kabapete-nazofox.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/zufojadibi/follow_up_job_application_template.pdf
    • https://s3.amazonaws.com/leteraxewe/18854511929.pdf
    • https://s3.amazonaws.com/nopomewegobij/96410395302.pdf
    • https://static1.squarespace.com/static/5fc298d7abaecd33182d0cb1/t/5fc6c5cb7995075abdcdb4b0/1606862284354/missing_megan_gallagher.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b2b2.bin
7e537bd8ba93cfb3994b89d298ce1b7d8d8dc6542b250088b37c223e857b25fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB2B2 5084 bytes
font_01_sfnt_off0000c3c5.bin
3fcf133b188ca094ffa01e2164f87d8bff834986a2e61c14fa9cf5de387926e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC3C5 9556 bytes

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