Malicious PDF — malware analysis report

Static analysis result for SHA-256 93757a8bd2383f81…

MALICIOUS

PDF

131.2 KB Created: 2021-04-01 00:53:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 29c32a6975b04f9cf38b98e2ab27832d SHA-1: 2d419f84c8bfda3678c89876648bb48999711c28 SHA-256: 93757a8bd2383f813cfe5aa86f49bc955fa949f06171e94431beabc6c732190b
184 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, with a critical heuristic firing indicating links to known malicious redirector infrastructure. The ML classifier and ClamAV also flagged the file as malicious, specifically as a phishing trojan. The document body, though heavily obfuscated, appears to be a lure related to a 'trigger point injection manual', likely intended to trick users into clicking the malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://dafemum.ru/wix?keyword=trigger+point+injection+manual In PDF document text
    • https://gazumewus.weebly.com/uploads/1/3/4/9/134901575/0999a2bf7c.pdfIn PDF document text
    • http://true-board1.club/mississippi_drivers_manual_practice_testshxop.pdfIn PDF document text
    • http://fruit-ital.space/2010_chrysler_town__country_tire_size_p225_65r1661mw1.pdfIn PDF document text
    • https://buxenawemino.weebly.com/uploads/1/3/4/5/134581697/wimiwogog-zelunuvit.pdfIn PDF document text
    • http://pezozolagipiv.22web.org/32124930950.pdfIn PDF document text
    • http://b0xberry.online/60819618936wjwqe.pdfIn PDF document text
    • http://e-devletodeme.net/bulova_marine_star_98c119_manualyi6cw.pdfIn PDF document text
    • https://duxojavuse.weebly.com/uploads/1/3/1/4/131483254/ledapufikozuzud-dakeximov.pdfIn PDF document text
    • https://xaxazusilu.weebly.com/uploads/1/3/4/7/134757455/jikegopisixofipubem.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://debatebarumexa.epizy.com/fogapafafutigo.pdfIn PDF document text
    • http://tafinefonekon.rf.gd/xuduxitinazepubijerinenoj.pdfIn PDF document text
    • http://mepitar.atwebpages.com/7007793355.pdfIn PDF document text
    • http://lijobexabip.rf.gd/lamosobiradawozasa.pdfIn PDF document text
    • http://walefusariwe.epizy.com/fonal.pdfIn PDF document text
    • http://xakorixomunaniw.epizy.com/brooder_management.pdfIn PDF document text
    • http://bujekotu.atwebpages.com/dusitamexotoxowik.pdfIn PDF document text
    • http://zapofekeba.rf.gd/7669533530.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

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001c77f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C77F 5100 bytes
SHA-256: 5f34468d0eb5aa75fdeb4f421da986b2181f1d166b16315a0197e6ad06ffbd9a
font_01_sfnt_off0001d8cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D8CC 11516 bytes
SHA-256: 590fa06f76edeb8ebdb3159f9af9eaf428142cdb7f8e9282a1b5d0a4dbd92c24

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