Malicious PDF — malware analysis report

Static analysis result for SHA-256 de52c878b3bfd16a…

MALICIOUS

PDF

57.2 KB Created: 2021-02-27 10:46:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 9dc7d20bc6b2ebc6af2261f3928feb30 SHA-1: 8147b9d76ba1b6ca707b39341cadc5196b0649d8 SHA-256: de52c878b3bfd16a67abd71bb4d1a83ee1ba1bfe18c0bc1e931950a72cea5c0b
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains multiple embedded URLs, with the primary one being a lure for 'Dungeons and Dragons basic rules 1981'. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The presence of embedded JavaScript, though not fully detailed, suggests an attempt to exploit PDF vulnerabilities or redirect the user to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9772

Heuristics 4

  • 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
  • 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://seumenha.ru/award?keyword=dungeons+and+dragons+basic+rules+1981 PDF link annotation
    • https://pexarokozisakim.weebly.com/uploads/1/3/5/3/135313666/kalifotekukore-kalurevu-titukixax-ruvuvadudu.pdfIn PDF document text
    • https://cdn.sqhk.co/jegamaxegev/jeLJhah/20951803937.pdfIn PDF document text
    • http://pet-guru.shop/amazon_prime_music_unlimited_family_cost_uk5rkjb.pdfIn PDF document text
    • https://cdn.sqhk.co/pigajifaw/ya4ixgj/teacher_appreciation_quotes_from_parents.pdfIn PDF document text
    • https://vipagazowarofi.weebly.com/uploads/1/3/4/6/134685611/girafuxiwuw.pdfIn PDF document text
    • http://wewogokuwidu.mywebcommunity.org/muzawoxibisipuboxaxusop.pdfIn PDF document text
    • http://gelchlen.fun/644996046445k9r0.pdfIn PDF document text
    • https://cdn.sqhk.co/xawobovuji/C5iejc1/15025708995.pdfIn PDF document text
    • http://texoraw.sportsontheweb.net/jbl_flip_3_connecting_bluetooth.pdfIn PDF document text
    • http://rixorevu.getenjoyment.net/scott_pilgrim_vs_the_world_cast_brie_larson.pdfIn PDF document text
    • https://diriremipujuna.weebly.com/uploads/1/3/4/2/134265666/7b22236.pdfIn PDF document text
    • http://akfb.online/edwin_friedman_generation_to_generation33236.pdfIn PDF document text
    • http://hamlikjorettoop.ru/street_racing_syndicate_cars_listr45zd.pdfIn PDF document text
    • http://bajekixizosi.myartsonline.com/what_is_a_feature_story_in_agile.pdfIn PDF document text
    • http://pojozija.onlinewebshop.net/vavugal.pdfIn PDF document text
    • http://tuwafexom.epizy.com/bibawuzifiwegifajisikaji.pdfIn PDF document text
    • http://jizofaludem.epizy.com/zujazesumuvolesevodoruji.pdfIn PDF document text
    • http://sojikavufor.rf.gd/56292819153.pdfIn PDF document text
    • http://pinopog.rf.gd/wapulokizuvorutaroxanizi.pdfIn PDF document text

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