Malicious PDF — malware analysis report

Static analysis result for SHA-256 9dd8968bdb0af3a9…

MALICIOUS

PDF

70.9 KB Created: 2021-02-13 20:07:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 224fe83dc7651d6eef9c9a3e30c1c541 SHA-1: 5b22aad483ee04538822e0867edf9ae487c406e7 SHA-256: 9dd8968bdb0af3a9aeb010a58281883317bf7a8796b30a2bb8eda0935a62be52
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://jottigo.ru/wix?keyword=expenses+are+reported+on+which+of+the+following+financial+statement%2528s%2529 PDF link annotation
    • https://cdn.sqhk.co/vujagefamig/2pOAn8M/nujalokibowekoz.pdfIn PDF document text
    • https://cdn.sqhk.co/nomitusibop/bhbAijj/classic_notes_pro_notepad_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/lewiwifo/jegfjOq/harry_potter_3d_puzzles_uk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492245/normal_6027410231217.pdfIn PDF document text
    • http://fosibejag.iblogger.org/48671664817.pdfIn PDF document text
    • https://bilujadaju.weebly.com/uploads/1/3/4/7/134772480/valogu-daweseledawuko-gamuvopidilur.pdfIn PDF document text
    • https://cdn.sqhk.co/defegitip/ge3wigm/dash_quest_heroes_black_powder.pdfIn PDF document text
    • http://questotzvezd.space/guwusakozitsr6kc.pdfIn PDF document text
    • https://xodukibefapox.weebly.com/uploads/1/3/0/8/130873769/vexala.pdfIn PDF document text
    • https://cdn.sqhk.co/bofagenined/igShiid/momiwevenitosif.pdfIn PDF document text
    • https://nimivisedasefu.weebly.com/uploads/1/3/1/0/131070972/sovilo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372967/normal_600aa348e971a.pdfIn PDF document text
    • http://connexion-amelii.xyz/29208853589so1k0.pdfIn PDF document text
    • http://kukushka.space/osrs_rogues_den_guide_2020v0f3o.pdfIn PDF document text
    • http://alifan.store/eclipse_oxygen_free_for_windowsfd4m1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370071/normal_5feaf521425ce.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470553/normal_5ff15dc2763a2.pdfIn PDF document text
    • https://cdn.sqhk.co/mogezunir/bIogjUJ/97616813100.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454054/normal_6002e7c7a9809.pdfIn PDF document text
    • http://detonic-shop.website/wirilajetotugufobebixorijw5f3f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d811.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD811 5840 bytes
SHA-256: cdcd6537b5146e550edc08ee655ea1fffd9595093f2c8535e505151b404d478f
font_01_sfnt_off0000ebf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBF4 9892 bytes
SHA-256: 026d306f190da3e0850c325f537aed774e1b33a2f25fcc6336a5d3a22cdfbad9

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