Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e2a063e5248c7bb…

MALICIOUS

PDF

78.4 KB Created: 2021-03-16 21:27:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a8b78596448545488748dedf30eb548f SHA-1: 4e449eeb5e516b5ca54f9bfb10d59a6a7b0db72a SHA-256: 1e2a063e5248c7bb6cdee4601e5ede6dbe119a887f747f5630a673d2dec4b4fb
126 Risk Score

Malware Insights

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

The file is identified as malicious by ClamAV and an ML classifier, indicating it's designed to be harmful. It contains numerous embedded URLs, many pointing to disposable domains, suggesting a link farm or phishing attempt. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' specifically flags this behavior, indicating the PDF is likely a lure to drive traffic to these sites. No scripts were extracted, but the presence of multiple external URIs strongly suggests a phishing or malware distribution vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://nipisod.ru/award?keyword=the+chaos+theory+of+careers+pdf PDF link annotation
    • http://dk-inc.xyz/99869681604d9qdh.pdfIn PDF document text
    • http://vladmer.ru/is_season_3_of_attack_on_titan_the_last2fxdp.pdfIn PDF document text
    • http://jobware.pro/3875839750497ru2.pdfIn PDF document text
    • https://s3.amazonaws.com/zesotat/26305412959.pdfIn PDF document text
    • http://igcopyrightverify.com/visual_basic_tutorial_in_tamilg14k4.pdfIn PDF document text
    • http://twoup-viktoria.online/anatomy_and_physiology_of_animal_cellzsrhc.pdfIn PDF document text
    • http://detonic-de.website/stihl_011_avt_carburetor_rebuildwkm6a.pdfIn PDF document text
    • http://pebifakonek.sportsontheweb.net/5772806354.pdfIn PDF document text
    • https://s3.amazonaws.com/folexapurilowe/sisekasor.pdfIn PDF document text
    • https://debuvubuni.weebly.com/uploads/1/3/4/8/134846467/migogow.pdfIn PDF document text
    • http://alexandreablog.com/mawevovixidotiretikawor9ditm.pdfIn PDF document text
    • http://ooovseanalizi.ru/how_to_make_ninja_star_using_origami_papersiikg.pdfIn PDF document text
    • http://pusatokolerax.mywebcommunity.org/wuvutik.pdfIn PDF document text
    • http://fezelegafefuv.mywebcommunity.org/maketidetovawejusewev.pdfIn PDF document text
    • http://afracheat8.xyz/komudekufegebajavetuujo8x.pdfIn PDF document text
    • http://islta.fun/609957619888cq5j.pdfIn PDF document text
    • https://jotukodapoze.weebly.com/uploads/1/3/4/6/134632246/zazumutix.pdfIn PDF document text
    • http://richteam.site/80375986758upsym.pdfIn PDF document text
    • http://mynasert.online/tofuzerupakukevh2p2.pdfIn PDF document text
    • https://s3.amazonaws.com/nigimul/dufogojom.pdfIn PDF document text
    • https://s3.amazonaws.com/fukepez/sodezomobewoburu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ligoroxenafof.atwebpages.com/xexojotuguk.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_off0000f471.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF471 5260 bytes
SHA-256: a0bf3f1057fc2764bbd2e943ac0b310671343650e1960f149c68aef7cffe7a4e
font_01_sfnt_off00010659.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10659 11084 bytes
SHA-256: b52ffe0be67f850210248aa7306bf7c3f6371a91c40845055bd2f30703a5562f

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