Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fa2981b237e0917…

MALICIOUS

PDF

78.1 KB Created: 2021-02-16 04:41:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 968568ab80fbb255e545a1aeef5c8984 SHA-1: 999a028b982008b993052c35e059c3acde68422e SHA-256: 6fa2981b237e091738d86f48ebd9856191b564273eda5882f07acccae18527be
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/wb?keyword=what%20are%20the%20types%20of%20training%20methods PDF link annotation
    • https://cdn.sqhk.co/mofosalamo/UWyWGoL/hawthorn_bank_login.pdfIn PDF document text
    • https://cdn.sqhk.co/wojipezusax/giMpnvd/xumomawebomaxi.pdfIn PDF document text
    • http://milanomoda.site/banolopurv.pdfIn PDF document text
    • https://cdn.sqhk.co/nomelafu/hh0jgje/68349914117.pdfIn PDF document text
    • http://kukudufuwole.iblogger.org/lipipotomokomogi.pdfIn PDF document text
    • http://goldenframecollision.com/weightlifting_fairy_full_episodexjsyt.pdfIn PDF document text
    • https://cdn.sqhk.co/xelajuwodaf/aRHhcSq/zombies_2_disney_movie_free.pdfIn PDF document text
    • https://cdn.sqhk.co/ruwonumatag/ibhQjaW/goxozuz.pdfIn PDF document text
    • https://cdn.sqhk.co/wenewojufaj/jfjfShb/44637420119.pdfIn PDF document text
    • http://swiss-family.space/jawij6w4gz.pdfIn PDF document text
    • https://xusalifur.weebly.com/uploads/1/3/4/1/134131705/fexilimi-lubizobudupoz-lojisid.pdfIn PDF document text
    • http://immortal-sho.club/56153783335xvhmi.pdfIn PDF document text
    • http://antonioita.fun/sirumamejebb38u.pdfIn PDF document text
    • https://cdn.sqhk.co/kimejijomaki/c7gfgda/tle_parent_portal.pdfIn PDF document text
    • https://cdn.sqhk.co/goduwonon/jhcgia4/54561782763.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_off0000f535.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF535 5540 bytes
SHA-256: 0fae30adb6bb7fcc2dec0e42c3552935f20b9f0fa079f42f067d503f5faa9434
font_01_sfnt_off000107f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107F6 10484 bytes
SHA-256: 1b7f8b6fa80052444e751ad13d2a817e40cb661be51142d578b47446918a8a02