Malicious PDF — malware analysis report

Static analysis result for SHA-256 61bfe95d644dd597…

MALICIOUS

PDF

74.6 KB Created: 2021-02-16 00:37:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: a9e93d90abe2e34910f6658a12e231b1 SHA-1: 45ed04ab88d59800f89f402c66802b3dacc459be SHA-256: 61bfe95d644dd597280a64ed1cc6ef9ad0418df482c7f7692428e1e1fc5240ba
96 Risk Score

Malware Insights

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

The file was detected as a malicious PDF by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an external URI pointing to a URL that appears to be a lure for Suzuki quadrunner repair manual information, likely a phishing or malware distribution attempt. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to trick users into visiting malicious sites or downloading further payloads.

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://seumenha.ru/strik?utm_term=suzuki+quadrunner+250+repair+manual PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4417809/normal_6015fcc07581b.pdfIn PDF document text
    • https://cdn.sqhk.co/tinolefowi/fPu4Ric/lego_elves_baby_dragon_school.pdfIn PDF document text
    • https://cdn.sqhk.co/jotepomi/jdhbhcl/crossfire_volleyball_florida.pdfIn PDF document text
    • https://cdn.sqhk.co/navotezive/thICggw/birthday_cake_pics_with_name_iqra.pdfIn PDF document text
    • http://kataeta.club/new_mods_for_minecraft_pezd2kc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372985/normal_6010c92c9ab63.pdfIn PDF document text
    • https://cdn.sqhk.co/muluxodipoto/a06hfjh/dune_bashing_in_dubai_flash_game.pdfIn PDF document text
    • https://cdn.sqhk.co/tinulafi/qhgsiaR/93249213508.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4494677/normal_6016b4da6e816.pdfIn PDF document text
    • https://cdn.sqhk.co/masamiwe/ifhhdYE/gedorut.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412894/normal_6024ce03c6f29.pdfIn PDF document text
    • https://cdn.sqhk.co/lanabeja/ih8hhfI/39648317265.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://roxutudutupit.epizy.com/tuxopofamobaweloko.pdfIn PDF document text
    • https://s3.amazonaws.com/vonutavekip/sscn._bkn._go._id_formasi_kesehatan.pdfIn PDF document text
    • https://s3.amazonaws.com/kumasala/kexifijavuvovegem.pdfIn PDF document text
    • https://s3.amazonaws.com/zunaduxa/converter_em_autocad_online_free.pdfIn PDF document text
    • http://vuruwabudakase.epizy.com/chiang_kai_shek_college_uniform.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e450.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE450 5668 bytes
SHA-256: c4879adbb62d5788eb4bda2f5ce79589754b885615b746cb3d297138093e524e
font_01_sfnt_off0000f796.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF796 10644 bytes
SHA-256: 6b5ef6486538f20c21ccb74aa91c480908f2ee76ca36e036380d5dcd2e933f33

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