Malicious PDF — malware analysis report

Static analysis result for SHA-256 010324e776b04f7c…

MALICIOUS

PDF

79.6 KB Created: 2021-03-01 17:18:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 16773e0ebd4dc1fe7176528de30d42d0 SHA-1: 8c27055b5ed6660a631e2236d5dae0329dd5b631 SHA-256: 010324e776b04f7cf6a031eb1ebee0765594ce6612727dd7894e30be7bea806b
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains numerous embedded URLs, with one specifically pointing to a suspicious domain ('vilenefex.ru') that is flagged as a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. Although no scripts were explicitly extracted, the PDF structure and embedded URIs suggest an attempt to redirect the user to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 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=fly+tying+kits+on+ebay PDF link annotation
    • https://resodarapasak.weebly.com/uploads/1/3/4/6/134659305/zaged.pdfIn PDF document text
    • https://cdn.sqhk.co/vasibejovej/bgfjdic/epic_knights_legend_guardians_heroes_action_rpg.pdfIn PDF document text
    • https://bizavewes.weebly.com/uploads/1/3/5/3/135323934/xugarukuvo.pdfIn PDF document text
    • https://dubobovutorikug.weebly.com/uploads/1/3/5/3/135332124/widisulowosezo.pdfIn PDF document text
    • https://cdn.sqhk.co/tezabulaw/rLjdhdS/arcade_games_list_by_year.pdfIn PDF document text
    • https://roxasunuveju.weebly.com/uploads/1/3/1/4/131437516/9020303.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393349/normal_5ffa72bc390d1.pdfIn PDF document text
    • https://ziwagunu.weebly.com/uploads/1/3/4/8/134883986/mudonituvozomaseg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467601/normal_602d9fb9819a8.pdfIn PDF document text
    • https://kikosezuzo.weebly.com/uploads/1/3/1/3/131378972/wofubobawazelajebidu.pdfIn PDF document text
    • https://lasebotoxuxuxir.weebly.com/uploads/1/3/4/7/134729765/nukakajawewunaxomu.pdfIn PDF document text
    • https://cdn.sqhk.co/pazaxefuma/F2gd7ii/boat_wallpaper_hd_free_fire_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459631/normal_5ff3650734392.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489853/normal_5fd3419a9b2f6.pdfIn PDF document text
    • https://cdn.sqhk.co/nebinefis/aMvQHLG/33057015199.pdfIn PDF document text
    • https://dusonibegoxat.weebly.com/uploads/1/3/1/3/131380688/5943565.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/nijosinizo/teaching_textbook_algebra_1_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/kefiperizonofu/74789477763.pdfIn PDF document text
    • https://s3.amazonaws.com/lorifawuvawot/creativity_at_work_and_hidden_secrets_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/dotivaf/63751062949.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fc64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC64 5016 bytes
SHA-256: 39fb011696e769efbc1bf7633c6496a65682bc0e5c0ddfee92ad106ed828aefb
font_01_sfnt_off00010da1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10DA1 10332 bytes
SHA-256: 8abeeab1019e435e3ea412b7144b5b8e244bcc2e0776c26c0a9fd08741431e75

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