Malicious PDF — malware analysis report

Static analysis result for SHA-256 f96da3393e3d98a1…

MALICIOUS

PDF

69.9 KB Created: 2021-02-25 21:33:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 050571ca21814b87bbbe0db685587689 SHA-1: 5643f2a75d00e38f824f455843540b3be9897226 SHA-256: f96da3393e3d98a148d683e43c797cb065e33ebdcee4ebdc52404d0f7d354880
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://seumenha.ru/award?keyword=how+to+program+universal+garage+door+opener+clicker PDF link annotation
    • http://tells.fun/2021_toyota_camry_xse_for_sale_near_mezsu5o.pdfIn PDF document text
    • http://interstart.online/37581002088dz1cf.pdfIn PDF document text
    • http://lishop.site/piputolzo8n.pdfIn PDF document text
    • https://cdn.sqhk.co/vozogekom/ggdPhhc/japavafizanovudoxilegasax.pdfIn PDF document text
    • https://cdn.sqhk.co/vetukalujir/gfhd0bz/truth_or_dare_netflix_cast_2012.pdfIn PDF document text
    • https://gomemetunugup.weebly.com/uploads/1/3/2/7/132712315/fuzedumut-kowilumikimu-gixavog.pdfIn PDF document text
    • https://cdn.sqhk.co/vojofarakiva/jYgg5gf/translate_romanian_to_english_app.pdfIn PDF document text
    • https://cdn.sqhk.co/posojuvapono/hh1umid/loromukekonip.pdfIn PDF document text
    • https://xovirekines.weebly.com/uploads/1/3/4/6/134648888/ruvokumanol-ripinujuketowa.pdfIn PDF document text
    • https://migawireradafus.weebly.com/uploads/1/3/2/6/132695569/8bd7473bdeaece5.pdfIn PDF document text
    • https://cdn.sqhk.co/wakewafo/ohjOhcR/best_video_downloader_extension_for_firefox_android.pdfIn PDF document text
    • https://cdn.sqhk.co/xajevedu/7hdijjg/naxuzurudoxesuvakiwefu.pdfIn PDF document text
    • https://cdn.sqhk.co/junizafuzep/R35G7YO/72137081486.pdfIn PDF document text
    • https://cdn.sqhk.co/zifeduwa/Tijijbn/neha_kakkar_songs_ringtone_download_mp3_pagalworld.pdfIn PDF document text
    • https://kijapipova.weebly.com/uploads/1/3/1/4/131407887/d7775f00504.pdfIn PDF document text
    • https://bozixezexa.weebly.com/uploads/1/3/4/8/134861503/5471510.pdfIn PDF document text
    • http://alfa-quest.ru/limijawegaz0vf6.pdfIn PDF document text
    • http://kalavar.xyz/medication_administration_via_enteral_tube2sbu9.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_off0000d233.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD233 5572 bytes
SHA-256: ca67fd22528945370c5d8ae680341a7983e69d8bb390f71d8f9a6c0e4138ee22
font_01_sfnt_off0000e526.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE526 10848 bytes
SHA-256: 5cc520da3d3252b4cfded2d759f51c09ed109d7211791a4371c23d7ed30820bc

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