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)
MD5: 29c32a6975b04f9cf38b98e2ab27832d SHA-1: 2d419f84c8bfda3678c89876648bb48999711c28 SHA-256: 93757a8bd2383f813cfe5aa86f49bc955fa949f06171e94431beabc6c732190b
136 Risk Score

Malware Insights

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

The PDF document contains lures indicative of an advance-fee scam, specifically mentioning a 'trigger point injection manual' and linking to external URLs. The ML classifier and ClamAV detection strongly indicate maliciousness. While no scripts were explicitly extracted, the presence of external URLs suggests the document is designed to redirect the user to a malicious site, likely to download further payloads or conduct phishing.

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
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://dafemum.ru/wix?keyword=trigger+point+injection+manual
    • https://gazumewus.weebly.com/uploads/1/3/4/9/134901575/0999a2bf7c.pdf
    • http://true-board1.club/mississippi_drivers_manual_practice_testshxop.pdf
    • http://fruit-ital.space/2010_chrysler_town__country_tire_size_p225_65r1661mw1.pdf
    • https://buxenawemino.weebly.com/uploads/1/3/4/5/134581697/wimiwogog-zelunuvit.pdf
    • http://pezozolagipiv.22web.org/32124930950.pdf
    • http://b0xberry.online/60819618936wjwqe.pdf
    • http://e-devletodeme.net/bulova_marine_star_98c119_manualyi6cw.pdf
    • https://duxojavuse.weebly.com/uploads/1/3/1/4/131483254/ledapufikozuzud-dakeximov.pdf
    • https://xaxazusilu.weebly.com/uploads/1/3/4/7/134757455/jikegopisixofipubem.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://debatebarumexa.epizy.com/fogapafafutigo.pdf
    • http://tafinefonekon.rf.gd/xuduxitinazepubijerinenoj.pdf
    • http://mepitar.atwebpages.com/7007793355.pdf
    • http://lijobexabip.rf.gd/lamosobiradawozasa.pdf
    • http://walefusariwe.epizy.com/fonal.pdf
    • http://xakorixomunaniw.epizy.com/brooder_management.pdf
    • http://bujekotu.atwebpages.com/dusitamexotoxowik.pdf
    • http://zapofekeba.rf.gd/7669533530.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 2

Files carved from inside the sample during analysis.

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