Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f7a772f80603626…

MALICIOUS

PDF

71.6 KB Created: 2020-12-25 04:37:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b2d2a552973b380ba3584c119aaddd8e SHA-1: ad0b6764d63aa424d74a850b8f716a20bb0be5f6 SHA-256: 6f7a772f80603626d5c19fca0832212bc13c64efe4ce08fe4d64707d32adaa06
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URL that redirects to a phishing site. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to contain metadata related to the lure URL, suggesting a phishing attempt.

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://trafffe.ru/strik?utm_term=the+last+blade+2+vita+review
    • https://cdn.sqhk.co/redixebu/jdk5jcD/rider_waite_tarot_deck_guide.pdf
    • https://cdn-cms.f-static.net/uploads/4460473/normal_5fad994c1460a.pdf
    • https://cdn-cms.f-static.net/uploads/4455916/normal_5faf5bb2e6d48.pdf
    • https://cdn.sqhk.co/momebuman/ijentia/99842668153.pdf
    • https://cdn-cms.f-static.net/uploads/4374024/normal_5f98a8b00f7fb.pdf
    • https://cdn-cms.f-static.net/uploads/4369511/normal_5f965f4339176.pdf
    • https://cdn.sqhk.co/zawafolor/wijbjid/demepadizovekirufi.pdf
    • https://cdn.sqhk.co/padekopa/6hihg6W/my_talking_pet_pro_cracked.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/jeworurowam/risemes.pdf
    • https://s3.amazonaws.com/tenunud/29825589980.pdf
    • https://s3.amazonaws.com/ropuba/17670819131.pdf
    • https://uploads.strikinglycdn.com/files/427d8b40-2844-41cc-aa1a-e87490147483/planet_rock_africa_bambaataa.pdf
    • https://s3.amazonaws.com/dojonuta/xiton.pdf
    • https://uploads.strikinglycdn.com/files/6a33b87b-f0b5-4000-9a9d-31d667366b3b/sowibupovosilavatekesu.pdf
    • https://s3.amazonaws.com/vinivuxo/oscillator_download.pdf
    • https://s3.amazonaws.com/numegubowalonan/vukezim.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_off0000d305.bin
fabb0c22006c499071c842d8c152216e542331e2b4f06311a77bfae00c10540a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD305 5288 bytes
font_01_sfnt_off0000e50c.bin
fc91420e67303114758747b617a8add5e2221a01f5c28a54d0494526ffbbc9bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE50C 17052 bytes

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