Malicious PDF — malware analysis report

Static analysis result for SHA-256 234dbff3e8a3d716…

MALICIOUS

PDF

83.9 KB Created: 2021-03-25 17:33:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: febc6354bd554d3fde2acbc53e5dcc92 SHA-1: d2ef702d08fd9c3ab9c4daae3381813128420528 SHA-256: 234dbff3e8a3d716fae715d8467aca67673f85e6776627f90154d256341d2de3
126 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous external URIs, many pointing to disposable hosting, and is described as a link farm. The embedded content, though heavily obfuscated, suggests an attempt to redirect users to malicious sites, likely for phishing or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/strik?utm_term=diary+of+a+wimpy+kid+movie+book+2 PDF link annotation
    • http://fadopaduwovod.iblogger.org/74790562826.pdfIn PDF document text
    • https://ziluxokoker.weebly.com/uploads/1/3/4/3/134392919/04e0eaae76b.pdfIn PDF document text
    • http://zalavovira.22web.org/96608049380.pdfIn PDF document text
    • http://italy-small.space/63364004284w1fct.pdfIn PDF document text
    • https://cdn.sqhk.co/mepapogivoma/f8EggBI/persian_calendar_1398_today.pdfIn PDF document text
    • https://cdn.sqhk.co/logulemuset/WjchgP0/when_we_were_young_lyrics_adele.pdfIn PDF document text
    • https://nozezekotelipub.weebly.com/uploads/1/3/4/8/134883262/motabos.pdfIn PDF document text
    • http://civiliscmq.online/radioactive_decay_problems_worksheet4jhjz.pdfIn PDF document text
    • http://whowill.ru/misobobofuguz0oxo9.pdfIn PDF document text
    • http://sexafilavu.iblogger.org/44547585099.pdfIn PDF document text
    • https://cdn.sqhk.co/robimovule/ChjjeWt/san_andres_island_costa_rica.pdfIn PDF document text
    • https://cdn.sqhk.co/wabedamor/jbD4qtH/viking_battle_for_asgard_xbox_360_review.pdfIn PDF document text
    • http://nigasheff.xyz/96582447940eath4.pdfIn PDF document text
    • http://classicalnaturally.com/watch_catch_me_if_you_can_online_free_123moviess39jm.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://e6676b24-921d-4f57-8fca-beda98688f3c.filesusr.com/ugd/144d27_24b3c943ed6a4042b89b54c3e842ed4a.pdf?index=trueIn PDF document text
    • http://talagamezibupip.epizy.com/daily_planner_online_template.pdfIn PDF document text
    • https://4cf6c2b4-cd84-4b73-83b1-bf7f441162b2.filesusr.com/ugd/e50c99_7aeb0acb0ed34b24a30da59db94af510.pdf?index=trueIn PDF document text
    • http://patabajisof.epizy.com/causes_of_world_war_one_worksheet_answers.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f1c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1C2 5568 bytes
SHA-256: f6b8b6666b54d57110081bc29fa0bf03b8f9f6c1d8019cffdba902b2b2c8c222
font_01_sfnt_off000104c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104C2 11748 bytes
SHA-256: 60932a35a0cb531ad46e25a7d8b92ca6907ff743c8620deda8218f5e7bba6989
font_02_sfnt_off00012c0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C0A 16036 bytes
SHA-256: 1bbfed8e334bb90a5f9d7804257786d4ae38288f3118609b7815268b8043fba5

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