Malicious PDF — malware analysis report

Static analysis result for SHA-256 182c5e0dcdaca36c…

MALICIOUS

PDF

73.8 KB Created: 2021-02-27 14:55:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 9cca6bbd1d7e1250ac5b4503ae6d781c SHA-1: 0d5f764a2a6b4c3d29fb1dfc111515d33ba8f21e SHA-256: 182c5e0dcdaca36c7110efd238f7318e58b5c9f9f596dd23f84211a889ebd7ef
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was flagged as malicious by ClamAV and an ML classifier. It contains a large number of external links, many pointing to disposable hosting, suggesting a link farm or phishing attempt. The document body is heavily obfuscated, but the presence of external URIs and the PDF_SEO_LINK_FARM heuristic indicate a pattern of directing users to potentially malicious or deceptive websites.

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://vilenefex.ru/award?keyword=jamaica+images+clip+art+flowers PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4425728/normal_601b89ef3d326.pdfIn PDF document text
    • https://fenibelamej.weebly.com/uploads/1/3/4/4/134464240/rizugajofasim-wuzikifukemojuk-zegamul-nugamudodiganu.pdfIn PDF document text
    • http://websporizlehd.com/niravejsymy.pdfIn PDF document text
    • https://puzifisabu.weebly.com/uploads/1/3/1/3/131378936/d0d44dc3ea41af.pdfIn PDF document text
    • http://es50off.pro/whitfield_profile_20-2_pellet_stove_manual6p14s.pdfIn PDF document text
    • https://guxitubekin.weebly.com/uploads/1/3/4/2/134267073/riwez-nojogusijube-kefobelimog-ripufixip.pdfIn PDF document text
    • http://prizinsta365.online/imdb_vikings_cast_season_5t9v3o.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377674/normal_602ee4f483dcb.pdfIn PDF document text
    • http://storezone.info/archeology_book1iph6.pdfIn PDF document text
    • https://noromilo.weebly.com/uploads/1/3/4/5/134587763/ragelune.pdfIn PDF document text
    • http://datingsexchat.site/goodbye_lullaby_avril_lavigne_album_free2envt.pdfIn PDF document text
    • https://kezexawu.weebly.com/uploads/1/3/0/8/130814062/7e0d4662a06c.pdfIn PDF document text
    • http://appletopshop.ru/572473874832f0i3.pdfIn PDF document text
    • http://autolombardpro.ru/rifixitelk6eu7.pdfIn PDF document text
    • https://sukodijam.weebly.com/uploads/1/3/4/5/134516983/duzoxewo.pdfIn PDF document text
    • https://vepodiruwa.weebly.com/uploads/1/3/4/3/134374194/8026487.pdfIn PDF document text
    • https://levalezekavazif.weebly.com/uploads/1/3/4/6/134639406/venatu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/vifusupegiza/alexander_movie_in_isaimini.pdfIn PDF document text
    • https://s3.amazonaws.com/gizonukorad/everglow_bon_bon_chocolat_album.pdfIn PDF document text
    • https://s3.amazonaws.com/jivagajamav/nijugugudefefus.pdfIn PDF document text
    • https://s3.amazonaws.com/dowavelaxam/xirifekutewabofazur.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_off0000e3aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3AA 5416 bytes
SHA-256: 43671c382881f673f923351404c6446a35bbe450dd07dacc0d59254925ed8288
font_01_sfnt_off0000f617.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF617 10492 bytes
SHA-256: 5ff3d2391a6f0215ef30d709061aa40001c7526b925c9821cc1ee0fed7c3e0a7