Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9713659ae059c39…

MALICIOUS

PDF

72.5 KB Created: 2021-02-21 10:45:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 038191a77c23288b491a04d1292eb1c2 SHA-1: 8458ccaf05cd2eb72997ffda5b8fdef1fa6b6a36 SHA-256: c9713659ae059c39d324252bfbd7363337d780a40213c8389d6079b8b3bf3b0c
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://jottigo.ru/wix?keyword=weider+ultimate+body+works+exercises+chart+pdf PDF link annotation
    • https://cdn.sqhk.co/susopavazane/jhHghdp/wrc_fia_world_rally_championship_game_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/dajebala/OhhLsPs/make_animated_stickers_for_whatsapp_ios.pdfIn PDF document text
    • https://cdn.sqhk.co/tipefima/9hiAIuG/jowelidaz.pdfIn PDF document text
    • http://xesabuzusoneb.66ghz.com/55590877130.pdfIn PDF document text
    • https://papobujiwirila.weebly.com/uploads/1/3/1/4/131453114/90563f341eeb.pdfIn PDF document text
    • https://merejeweja.weebly.com/uploads/1/3/1/3/131381112/5194006.pdfIn PDF document text
    • http://car-test.pro/fixonowaduduratidopupejagv7wg3.pdfIn PDF document text
    • https://tokarakuwo.weebly.com/uploads/1/3/0/9/130969339/8e2ea7.pdfIn PDF document text
    • http://idclick.cash/95318222724hzu7h.pdfIn PDF document text
    • https://cdn.sqhk.co/linotepibubi/7gjyiLr/67579559105.pdfIn PDF document text
    • http://idealicait.website/ejemplo_de_informe_simple_de_trabajorhrft.pdfIn PDF document text
    • http://prizinsta24.online/burnout_video_song_hdyaar._comb7s7i.pdfIn PDF document text
    • https://cdn.sqhk.co/mofosalamo/jhhLAja/2265998896.pdfIn PDF document text
    • http://nasporte1.fun/micelle_formation_animationukuos.pdfIn PDF document text
    • https://cdn.sqhk.co/tifapoxur/cbhclRm/jiwuginudeperigudabeg.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_off0000dd93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD93 5872 bytes
SHA-256: ebd6a5ffe55c46bf2417a90d0fcac06e96b124df7d43d6c907827dc7fd08ae03
font_01_sfnt_off0000f186.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF186 10412 bytes
SHA-256: 2385f80c72e92ec4fa954ab3bbf00681ca7d73f3590de05670c93d86adf20725