Malicious PDF — malware analysis report

Static analysis result for SHA-256 222b4a87346ff91d…

MALICIOUS

PDF

99.1 KB Created: 2021-02-26 19:32:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 9cc7720768dae595c524c8e01cb9aefb SHA-1: 2f6ac0e8d1f0d615750f3b54af9a9d698ba33df2 SHA-256: 222b4a87346ff91d898eafd323e6adca9ca6e6e19ef6d5b5355bf9711bea3492
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, which identified it as a phishing trojan. The document contains an embedded URL that directs users to a suspicious domain, likely to host further malicious content or phishing pages. The presence of an external URI and the ML classification strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

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://jottigo.ru/strik?utm_term=what+dog+can+beat+a+pitbull+in+a+fight PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4406481/normal_6024684c3b95d.pdfIn PDF document text
    • http://sakulog.sportsontheweb.net/gazikivibojifo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388407/normal_6028fabfb798c.pdfIn PDF document text
    • http://wubopabezijoso.22web.org/fizibulekazorufidamij.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417418/normal_5fd9f76fbeb9f.pdfIn PDF document text
    • https://cdn.sqhk.co/logubaxe/hbjiica/duwanamawopinopuvinuxu.pdfIn PDF document text
    • https://cdn.sqhk.co/dasisogi/ZujhihO/wings_rings_modesto_california.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://voxagezevelog.rf.gd/spiritual_meaning_of_6044.pdfIn PDF document text
    • http://belinoremujuk.rf.gd/casual_suit_style_guide.pdfIn PDF document text
    • http://suvubojetixag.epizy.com/94277529929.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010a63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A63 5180 bytes
SHA-256: 33dece8c9a78bd47e9b3246bef6aa887a45ef896b67c829f1c492eb04647400b
font_01_sfnt_off00011bff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BFF 1728 bytes
SHA-256: bc99ace54c25a7dd36b8ff65d2ff6cbdeee65b358bdc70c7bf96298ff5e8d1fe
font_02_sfnt_off0001249e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1249E 17536 bytes
SHA-256: 5801da8a41ae946db791ae4ecb3e3dee0fd0effcf98ef298f2524086dda84a8b
font_03_sfnt_off00015b80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15B80 16204 bytes
SHA-256: c988415812f594187b0a0ed75dc52802e798e1695b49bd300f8412a65040a449
font_04_sfnt_off000170af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x170AF 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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