Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e81fefdc74383d2…

MALICIOUS

PDF

88.6 KB Created: 2021-02-24 20:26:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: ae113a2884775c0ea87a14ea39c79a7f SHA-1: d8ee05108133678e23d06d9afc4bc5a551019b1b SHA-256: 0e81fefdc74383d2eeb6a0bfa73719aad699e076a534f5b3e000a83cf31d82ad
124 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable domains, and is flagged by ML classifiers and ClamAV as malicious. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a tactic to obscure malicious links within a large number of seemingly benign ones. The presence of external URIs suggests an attempt to redirect the user to a compromised or malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8759

Heuristics 4

  • 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
  • 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://baarspo.ru/award?keyword=american+idioms+audiobook+free+download PDF link annotation
    • http://xuwuvewisin.mypressonline.com/9034785244.pdfIn PDF document text
    • https://zedabobosarafon.weebly.com/uploads/1/3/0/8/130813357/jimobewo-geseniwejidotu.pdfIn PDF document text
    • http://zigorukap.iblogger.org/16967549326.pdfIn PDF document text
    • http://kamikofonem.mygamesonline.org/star_wars_galaxy_of_adventures_ahsoka_tano_figure.pdfIn PDF document text
    • http://sluzhba1.net/guion_literario_plantillawtamt.pdfIn PDF document text
    • https://xuwatezifi.weebly.com/uploads/1/3/5/3/135305435/defetoridibapa_tudetuwawik_lavibilibenok_bulomexim.pdfIn PDF document text
    • https://cdn.sqhk.co/telivagawu/gdhdj4d/download_game_tiki_taka_soccer_mod_apk.pdfIn PDF document text
    • http://sugameloxufe.mywebcommunity.org/dusilujixo.pdfIn PDF document text
    • http://noxodexuvalolum.iblogger.org/fasujijexifupivat.pdfIn PDF document text
    • https://cdn.sqhk.co/konidadelan/EzrD8gd/dibexiroledakoletavaxo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xupudajiwozov.epizy.com/parunera.pdfIn PDF document text
    • http://kosezofejesuxef.atwebpages.com/can_i_watch_sharp_objects_on_amazon_prime.pdfIn PDF document text
    • http://widifusi.myartsonline.com/calories_in_taco_bell_shredded_chicken_soft_taco.pdfIn PDF document text
    • http://sovutenagora.rf.gd/harris_teeter_bakery_nutritional_information.pdfIn PDF document text
    • http://kotopogo.rf.gd/kimetepilenare.pdfIn 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_off00012634.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12634 5452 bytes
SHA-256: d72e167b5ca5994777a3e47e6a973536cab77b8afc8a40d24af2e7fa143f19dd
font_01_sfnt_off000138b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x138B3 4036 bytes
SHA-256: 15db9d1308373d55907e7c5e971aa57e11635cee85a722bd08ccc2fad27d68e9