Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cb3b52d5ce921a8…

MALICIOUS

PDF

81.8 KB Created: 2021-02-28 03:30:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: e4062d95bf5e3aeb0f562ddd764383e3 SHA-1: 459c5c507704e1ff791ef236f759c48bafed02cc SHA-256: 3cb3b52d5ce921a8562cc6eeb7c28560e63c4827efaa1a920982a768c5a3ea48
124 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious. It contains numerous embedded URLs pointing to disposable domains and link farms, suggesting a phishing or malware distribution campaign. The document body, though heavily obfuscated, contains references to game hacks and recipes, likely serving as a lure to trick users into visiting these malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9532

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://bologen.ru/award?keyword=how+to+make+cajun+pasta+with+shrimp PDF link annotation
    • https://cdn.sqhk.co/mivesumor/jdiaAia/velocity_rush_parkour_action_game_hack.pdfIn PDF document text
    • http://axecheat9.xyz/securecrt_portable_windows_10nxp5x.pdfIn PDF document text
    • http://vuzuvolumupapiz.22web.org/30135943568.pdfIn PDF document text
    • http://worldhold.online/8606606912sxwzi.pdfIn PDF document text
    • https://cdn.sqhk.co/kajemuwasutu/iaij2ib/century_21_store_broadway_nyc.pdfIn PDF document text
    • http://idealicait.website/wavulidosilezotuwzyat.pdfIn PDF document text
    • https://cdn.sqhk.co/dikapagoloza/Rhhpzjp/crazy_high_school_football_plays.pdfIn PDF document text
    • http://tizezs.xyz/bebibezobuvamk2xh.pdfIn PDF document text
    • https://cdn.sqhk.co/rexixugepir/ohgiNyT/36769478038.pdfIn PDF document text
    • https://cdn.sqhk.co/fanabezom/PCic2Xs/rocket_crisis_missile_defense.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/norozovijalu/31236903341.pdfIn PDF document text
    • http://nulesuli.epizy.com/45918538679.pdfIn PDF document text
    • http://zamutodud.rf.gd/15941942257.pdfIn PDF document text
    • http://dugoneluxokudu.rf.gd/can_starbucks_make_a_frappuccino_with_almond_milk.pdfIn PDF document text
    • http://sovotovagito.epizy.com/94432815796.pdfIn PDF document text
    • https://s3.amazonaws.com/regovadeje/menatepidupa.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011bbd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BBD 5336 bytes
SHA-256: be2f0df14a8d15c879d671ba2ad8b7a49c0a6dcf643bba24e46883b5bff74b86

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