Malicious PDF — malware analysis report

Static analysis result for SHA-256 e82ffe67785890a8…

MALICIOUS

PDF

77.5 KB Created: 2021-03-19 06:59:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 08d9da3c7c7535e8b6a4e2b02f4fa496 SHA-1: 1132123ae0050624671341e4d1a069e891563763 SHA-256: e82ffe67785890a839d91b8435db7ff19996090a5d13f4572c17a2a83d62e522
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a malicious domain. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. The presence of multiple unknown URLs further supports this, suggesting the document is designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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/wix?keyword=iem+vs+earbuds
    • http://igclienteam.com/delesekiwalobivufuxokariknkr38.pdf
    • http://vinorama.fun/nursing_diagnosis_example_for_chronic_paintrvx0.pdf
    • http://br1.red/cardcaptor_sakura_wand_templated8svq.pdf
    • http://like-store.site/magnus_chase_book_2_full_booktms9l.pdf
    • http://dopepaba.iblogger.org/solutions_manual_organic_chemistry_francis_carey.pdf
    • https://static.s123-cdn-static.com/uploads/4483345/normal_5ff55ecdbb4ec.pdf
    • http://pokulumaj.iblogger.org/93296938716.pdf
    • https://cdn.sqhk.co/novigigexuxo/djC5efJ/34550055409.pdf
    • https://static.s123-cdn-static.com/uploads/4371536/normal_5fe009a371356.pdf
    • http://kengoru.space/beforexasi3eheq.pdf
    • https://cdn.sqhk.co/puvubuzu/cO4ievD/all_star_basketball_jersey_2018.pdf
    • https://cdn.sqhk.co/vefemonuru/jdicKii/lubumabedofovawefufe.pdf
    • https://static.s123-cdn-static.com/uploads/4482636/normal_5febdc78bfe08.pdf
    • https://cdn.sqhk.co/fegadosijete/lo410on/autocad_dwf_viewer_2013.pdf
    • https://cdn.sqhk.co/tawibonikigo/esJ1Azq/zugiguwowelabatefokuvu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/7636fb26-e359-4a8d-b4b6-41b4760c4b45/five_tibetan_rites_peter_kelder.pdf
    • http://bixoravu.epizy.com/94725999550.pdf
    • http://tozibuxadotoba.epizy.com/kugudel.pdf
    • http://wabelat.epizy.com/women_s_booties_platform.pdf
    • http://loxosonupod.rf.gd/1921492413.pdf
    • http://duwutejuvozow.rf.gd/13145307123.pdf
    • https://uploads.strikinglycdn.com/files/cd611c0f-8009-4288-af27-3d2f29672254/milumejexivelodotadunevi.pdf
    • https://uploads.strikinglycdn.com/files/2001a3e5-8cff-42fc-8ea4-85c761e21fa5/hp_compaq_8000_elite_cmt_manual.pdf
    • http://ninefaniki.rf.gd/do_apple_employees_get_free_apple_watches.pdf
    • http://wijabotivov.epizy.com/pe_games_that_require_no_equipment.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_off0000eecf.bin
d658943710b6b8a29c347929b5d17938c56fedc7ddf328d65fc8b2d6bb3df121		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEECF 5076 bytes
font_01_sfnt_off0000fffa.bin
5a692554bfaf6ffdd45c44a588f9aabeeb4e5436a7a8f2db1c14e800a9938b23		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFFFA 11940 bytes

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