Malicious PDF — malware analysis report

Static analysis result for SHA-256 29b163d8345aaf92…

MALICIOUS

PDF

70.3 KB Created: 2021-02-20 09:53:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 35fa3f7174d7746c9b52474f99cb1e52 SHA-1: de0ef4e33f63bad2b770870598f5b7d289b91d3f SHA-256: 29b163d8345aaf928af591c88b1fc2166fee5128d5ccc9b9f8e2030f32785cf2
96 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a machine learning classifier and ClamAV, indicating malicious content. It contains an embedded URI pointing to a URL that masquerades as a 'garden brunch cafe menu', likely a phishing lure. While no scripts were explicitly extracted, the presence of embedded URLs and the ML classification strongly suggest it's designed to redirect users to a malicious site, potentially for credential harvesting or further malware delivery.

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://leonvi.ru/wix?keyword=garden+brunch+cafe+menu
    • https://cdn.sqhk.co/wusoxopejezo/djahiha/28261845242.pdf
    • http://pressit.space/58741784342p6p63.pdf
    • http://xbet1.fun/sutinifusondr8om.pdf
    • https://cdn-cms.f-static.net/uploads/4379482/normal_5fe97700698f2.pdf
    • http://lnstagramsupportlives.com/pazurafozoxirejitejubavuvvyot.pdf
    • https://cdn-cms.f-static.net/uploads/4418788/normal_5fd254f0d9a16.pdf
    • https://cdn.sqhk.co/kurafuso/zFVjhif/polelofixiwo.pdf
    • https://static.s123-cdn-static.com/uploads/4389108/normal_5fc80c2acd146.pdf
    • https://cdn-cms.f-static.net/uploads/4413347/normal_602f5d38773a2.pdf
    • https://static.s123-cdn-static.com/uploads/4447258/normal_5fcd0f2a56fbe.pdf
    • https://cdn-cms.f-static.net/uploads/4401732/normal_60163ada5b8d4.pdf
    • https://static.s123-cdn-static.com/uploads/4378628/normal_5fde21bd33c56.pdf
    • https://static.s123-cdn-static.com/uploads/4408335/normal_60046e3f83908.pdf
    • http://alkim.xyz/dd_3.5_monster_manual_5k4crd.pdf
    • https://cdn.sqhk.co/pijovowifil/iigT6hh/mumetiwemanabe.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/sebunuzu/84794369066.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_off0000d743.bin
3ce4416a19fc65af6669914fef6198150011522dea540fc90611769118d53ace		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD743 5224 bytes
font_01_sfnt_off0000e8e1.bin
d28cd6bd0fd365b0098f81f0711af8abd906bab5cf407f2132cb0885b1d7a0ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE8E1 10468 bytes

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