Malicious PDF — malware analysis report

Static analysis result for SHA-256 0825f5f8b1c16812…

MALICIOUS

PDF

38.4 KB Created: 2021-02-22 11:46:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: a3b54d81c6d2290f183f02d4359928ec SHA-1: d2352cd0b266092af4494e3c49ad617d269a5884 SHA-256: 0825f5f8b1c168126ccf3488868181aa93ed439d1b901ec7228ec3782641e017
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF exhibits characteristics of a phishing lure, including being image-heavy with minimal text and containing a click-outward action to external URLs. Heuristics indicate it's a link farm on disposable hosting, and ClamAV detection confirms it as a phishing trojan. The embedded URLs likely lead to further malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7465

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
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 38 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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/wb?keyword=does%20bowflex%20hvt%20fold%20up PDF link annotation
    • http://shop-kid-toys.online/screening_of_antiarrhythmic_drugsfgs83.pdfIn PDF document text
    • https://cdn.sqhk.co/lepavenujal/frMKxRQ/anime_war_ita_wikipedia.pdfIn PDF document text
    • https://xubedemowixur.weebly.com/uploads/1/3/6/0/136004279/2babc7ec9.pdfIn PDF document text
    • https://lafivejazep.weebly.com/uploads/1/3/4/7/134771341/2721152.pdfIn PDF document text
    • http://nasporte1.fun/57985577452b5anw.pdfIn PDF document text
    • https://cdn.sqhk.co/zadoweferoxe/hehjJsl/51097049310.pdfIn PDF document text
    • http://vinnipoh.fun/ludulewowopiluxujuwogac6xb5.pdfIn PDF document text
    • http://copyrightsafetyhelps.com/90954848122f5fmn.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481667/normal_5ffa17c7d2c17.pdfIn PDF document text
    • http://heleogose.online/bcbs_federal_pre_authorization_formks83i.pdfIn PDF document text
    • http://shopsmmv.site/consecutive_integers_worksheet_with_answersk0wok.pdfIn PDF document text
    • https://cdn.sqhk.co/tikugubobo/d1jjjjA/download_dragon_ball_z_super_goku_battle_mod.pdfIn PDF document text
    • https://cdn.sqhk.co/tefupudoma/aChfzjb/game_development_courses_university_philippines.pdfIn PDF document text
    • http://astropsychology.website/up_b._ed_form_2018_apply_onlinegrxlf.pdfIn PDF document text
    • https://cdn.sqhk.co/bumogebiz/inSZzqj/dekuwalidufizIn PDF document text

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