Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e964a8f790a86d6…

MALICIOUS

PDF

80.0 KB Created: 2021-03-22 01:48:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3bfb7938468137607675114be6632faa SHA-1: b61129a6d691246adf7fcb97a0b1e4ef18387221 SHA-256: 1e964a8f790a86d6bbce3892877098e92ede6b76cc778f7c029d622697219469
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a suspicious domain, likely as part of a phishing or scam campaign. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://botokaw.ru/strik?utm_term=how+much+is+boston+market+thanksgiving+dinner
    • https://static.s123-cdn-static.com/uploads/4420476/normal_5fcea53cb4ebd.pdf
    • https://cdn-cms.f-static.net/uploads/4448735/normal_602f9c107dd13.pdf
    • https://static.s123-cdn-static.com/uploads/4426413/normal_5fcaf8cf4a74b.pdf
    • https://cdn-cms.f-static.net/uploads/4413735/normal_601455c24d24d.pdf
    • http://niluwipewuxasa.medianewsonline.com/how_globalization_affect_business_ethics.pdf
    • https://cdn.sqhk.co/wenegifuteg/62jb5c6/neighbors_app_review.pdf
    • http://kpovli.ru/chrome_version_727thyw.pdf
    • https://static.s123-cdn-static.com/uploads/4403429/normal_5fec672dd64be.pdf
    • https://cdn.sqhk.co/wexunaveb/iigdiiI/fitiruriperovajizuxir.pdf
    • https://cdn.sqhk.co/gukisafuw/Rjd0djf/22683961334.pdf
    • http://hdsamara.ru/2006_5.9_cummins_repair_manual1rj2u.pdf
    • https://cdn-cms.f-static.net/uploads/4489722/normal_6044f9c4159e7.pdf
    • https://cdn-cms.f-static.net/uploads/4370740/normal_603587ae55a31.pdf
    • http://circleshtang.xyz/bojeresadadapitidepotulespfk6.pdf
    • https://cdn.sqhk.co/jixuvepabu/hekqge9/runner_duck_breeding_season.pdf
    • https://cdn-cms.f-static.net/uploads/4403689/normal_60470c9c6e3f0.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://sofibimibojas.myartsonline.com/python_machine_learning_sebastian_raschka_y_vahid_mirjalili.pdf
    • http://wutejaxevewef.myartsonline.com/39365536395.pdf
    • https://s3.amazonaws.com/rufonali/31493661658.pdf
    • http://zatuvejamubolo.atwebpages.com/metomufosamoxan.pdf
    • https://s3.amazonaws.com/guvovigo/66357031257.pdf
    • https://s3.amazonaws.com/kofabube/doviso.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ec4b.bin
6184c50f854efd639f07692dcf9c2779a7e168f1ce41573c64fd8a96da686462		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEC4B 5520 bytes
font_01_sfnt_off0000fef7.bin
b4ac1f9da2b4a7e83961c70c2fd46fb0ba6b5cfd5a06a9162e1aabacaddab469		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFEF7 10880 bytes
font_02_sfnt_off00012420.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12420 4324 bytes

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