Malicious PDF — malware analysis report

Static analysis result for SHA-256 12997963dbfb6f0b…

MALICIOUS

PDF

70.8 KB Created: 2021-02-09 12:42:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 027a7dea5eb1a2f20d682e6c06177c89 SHA-1: 1a21f405c6adf61848c738678802f5ee281e5099 SHA-256: 12997963dbfb6f0bd972cdf738e0a2377bdd3556d82cf6c9b1d47e4692c697be
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://bologen.ru/wb?keyword=technical%20documentation%20template%20example PDF link annotation
    • https://pepedojimu.weebly.com/uploads/1/3/1/0/131069997/jopowibezafoze.pdfIn PDF document text
    • http://clientbluebadge.com/six_sigma_control_chart_excel_templatesm7k8.pdfIn PDF document text
    • https://sowimarigakuni.weebly.com/uploads/1/3/4/7/134705136/38aabe85e.pdfIn PDF document text
    • https://sobopagep.weebly.com/uploads/1/3/0/8/130873740/04c942e4.pdfIn PDF document text
    • https://wikagigodoxuf.weebly.com/uploads/1/3/2/8/132814929/gujin_gixidamesa_dasasujegerud.pdfIn PDF document text
    • https://fakegegi.weebly.com/uploads/1/3/5/3/135312823/a0392.pdfIn PDF document text
    • http://legendnat.space/terraria_negative_dyech0j3.pdfIn PDF document text
    • https://cdn.sqhk.co/xubupigegi/dXjePRv/komefepimijuwa.pdfIn PDF document text
    • http://triple-doska3.club/pefawiturigptnxt.pdfIn PDF document text
    • https://getaforufuzok.weebly.com/uploads/1/3/4/7/134733873/dilap_xewizuvamuxase.pdfIn PDF document text
    • https://cdn.sqhk.co/boguzivipel/idhdzbQ/47195277514.pdfIn PDF document text
    • http://vittorguxx.site/lg_mobile_switch_stuck_at_99f849k.pdfIn PDF document text
    • http://gobigs.space/minecraft_guide_to_explorationsi679.pdfIn PDF document text
    • https://cdn.sqhk.co/fofubulami/eqThdgi/jemejemajijijurefanod.pdfIn PDF document text
    • http://unreguezff.rest/66579870750xaig4.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_off0000d9f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9F2 5056 bytes
SHA-256: 47a4e92c7d6990510ee03b35cca672beb2efbb3f48788f70ce03108c6e1c92d0
font_01_sfnt_off0000eb04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB04 10452 bytes
SHA-256: 485a0cb1c10734a5857a8ba6d82492d0a4682031568151a348245b1632d17490