Malicious PDF — malware analysis report

Static analysis result for SHA-256 405d292ae5901277…

MALICIOUS

PDF

70.1 KB Created: 2021-01-29 08:26:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: eb5c7a104f4c8463649e02fbf7a16fb5 SHA-1: f670fc1abe6d8044bad2aeb2de0112b2db27f259 SHA-256: 405d292ae59012774bfe417fb8f041225a205c7a1ec9303d16aa7a529caf0cc9
246 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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.
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://pupikitonusu.weebly.com/uploads/1/3/5/3/135301263/pazasumomogofi.pdf.
  • 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://trafffi.ru/wb?keyword=pax%20ios%20app%20ipa PDF link annotation
    • https://pupikitonusu.weebly.com/uploads/1/3/5/3/135301263/pazasumomogofi.pdfIn PDF document text
    • https://rozozejowetape.weebly.com/uploads/1/3/4/5/134510424/5a6c06e900.pdfIn PDF document text
    • https://jokunotewe.weebly.com/uploads/1/3/5/3/135314966/2423381.pdfIn PDF document text
    • https://dexajuvado.weebly.com/uploads/1/3/4/4/134470202/d56413.pdfIn PDF document text
    • https://bewizujire.weebly.com/uploads/1/3/2/3/132303264/golinip_simasurexab_xumaduriso_timabolaselodiw.pdfIn PDF document text
    • https://filukekab.weebly.com/uploads/1/3/4/4/134478490/buvidonurexolobof.pdfIn PDF document text
    • http://varistop.site/xuzipk0hye.pdfIn PDF document text
    • https://lanufirosonez.weebly.com/uploads/1/3/4/7/134704233/digaxelijo.pdfIn PDF document text
    • https://vuzaruluweketex.weebly.com/uploads/1/3/4/4/134478477/jawaluvezaxebavuwiw.pdfIn PDF document text
    • https://bewimesev.weebly.com/uploads/1/3/4/7/134753962/gufenemexew.pdfIn PDF document text
    • https://cdn.sqhk.co/dodufiruw/jhyFFhd/deckeleven_s_railroads_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/widexerun/ggTUB9M/gibbets_bow_master_game_download.pdfIn PDF document text
    • https://cdn.sqhk.co/wubunepan/0bhb2gc/xinumitajimorumerugexe.pdfIn PDF document text
    • https://cdn.sqhk.co/madosodu/hb9Wibt/letasifexeneg.pdfIn PDF document text
    • http://kataeta.club/80216880553z2gy9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://milisepidug.rf.gd/pulijade.pdfIn PDF document text
    • http://vibofaser.rf.gd/bluestacks_android_app_free.pdfIn PDF document text
    • http://pofegafiwej.epizy.com/solving_polynomial_equations_worksheet_answer_key.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_off0000d4d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4D6 4756 bytes
SHA-256: 38377686feaccb30becca91d8944dd8b6761d90a2738efcb03ad01fcea72c1f2
font_01_sfnt_off0000e51b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE51B 12072 bytes
SHA-256: 646ba1de1d857c6c52ca76e753c821b44124e79021a3a9651e177f62fc313e6a

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