Malicious PDF — malware analysis report

Static analysis result for SHA-256 613eee03018a5019…

MALICIOUS

PDF

64.0 KB Created: 2020-11-17 04:44:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: bf024ae89065e41a3702496563d9e76f SHA-1: 266302f6f31f1767b5b2d05096044210ceedce11 SHA-256: 613eee03018a50198c061d33e1f75f55463120ecbb3b484bc71f1f5ff11354b6
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is identified as malicious by multiple heuristics and ClamAV, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, trafffi.ru, which is likely part of a phishing campaign. The document body, though heavily obfuscated, contains keywords related to 'pitbulls for sale', suggesting a lure to a malicious website.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8437

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://trafffi.ru/123?utm_term=american+red+nose+pitbulls+for+sale PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4452173/normal_5fb3216f57365.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499935/normal_5fac46a202747.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371495/normal_5fa4a0de788fd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424378/normal_5f993dba8b9fc.pdfIn PDF document text
    • https://jaserasozupog.weebly.com/uploads/1/3/1/4/131454215/gefudigoramoju.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460076/normal_5fa4aa83e9f07.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367273/normal_5f8b39b04c55b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450870/normal_5fa19edc4128c.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/vososasoxumete/methylene_chloride_definition.pdfIn PDF document text
    • https://s3.amazonaws.com/punurum/pearson_interactive_science_grade_6_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/kiwopusafize/fafnir_s_storeroom_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/tinajabizoreguf/software_architecture_in_practice_3rd_edition_download.pdfIn 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_off0000d0ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0AB 5432 bytes
SHA-256: 423186318154050430a012132148cc4264867a4c0c5e7dd6372bb44b57c68f2d
font_01_sfnt_off0000e304.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE304 10536 bytes
SHA-256: cce6d02695130de73f2d605b1b6ce6f6e62fa97deb57e346c97e1874b34ee752

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