Malicious PDF — malware analysis report

Static analysis result for SHA-256 a986aacdd33cd7f6…

MALICIOUS

PDF

72.4 KB Created: 2021-02-23 12:02:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 7b02608539c794315c63533237696187 SHA-1: 6b84128d875bcabae9322018838c542fc1350215 SHA-256: a986aacdd33cd7f6caf3e1099fd8d2322e8bfeb2cd7d8b2d66457326dcf14ed5
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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
  • 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://bologen.ru/wb?keyword=cooks%20essentials%20electric%20pressure%20cooker%20instruction%20manual PDF link annotation
    • https://cdn.sqhk.co/kibizatududo/grcshb5/nunurarubagowonasoviso.pdfIn PDF document text
    • https://cdn.sqhk.co/kisereta/auif7ha/tips_and_tricks_for_among_us_as_imposter.pdfIn PDF document text
    • https://cdn.sqhk.co/jipogidara/bGI58wX/43720183869.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379982/normal_5fdc2eb18b32e.pdfIn PDF document text
    • https://cdn.sqhk.co/moxinivo/bibGijI/novoguduganixiwebewitirov.pdfIn PDF document text
    • https://cdn.sqhk.co/sadetujadufi/bibieji/servers_for_minecraft_pe_pvp.pdfIn PDF document text
    • https://cdn.sqhk.co/sezogitov/W2zSGxz/59122783896.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427528/normal_6010052662585.pdfIn PDF document text
    • https://cdn.sqhk.co/redusebi/ggjIggh/life_gallery_game_apk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478947/normal_6001828c437f0.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/geraromu/lutanafizodexudarunan.pdfIn PDF document text
    • http://xemugapot.rf.gd/7814170088.pdfIn PDF document text
    • http://guxodolabisiruj.epizy.com/wipigabofozuke.pdfIn PDF document text
    • http://divasopib.rf.gd/who_are_yodas_apprentices.pdfIn PDF document text
    • http://tuninedup.epizy.com/feasibility_study_template_word.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_off0000de7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE7A 5048 bytes
SHA-256: 33a890b0ec96089d3ff3e0b48cbaad589892f1ff56ef757f2ac08ea4f7ce1ac2
font_01_sfnt_off0000ef90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF90 10884 bytes
SHA-256: 21d217402ac94e50af966a73e136f13258a20a08ef5951a0096ce911c72956a3