Malicious PDF — malware analysis report

Static analysis result for SHA-256 52498e81c2782308…

MALICIOUS

PDF

50.2 KB Created: 2021-06-08 23:03:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 4922573d34a4c3150ce4f60bde54895f SHA-1: fb2a4fecb819fc0a5cc8e8c996f9c02327cca3ba SHA-256: 52498e81c2782308d1c92ac166bf8a162c4abd74a0e7746358761e9cdb245058
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains embedded URLs and is flagged by multiple heuristics, including a critical ClamAV detection for Pdf.Phishing.Trojan. The presence of a URL with a "real money 8 ball pool download" query parameter suggests a social engineering lure. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9443

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://philabc.ru/pbw?utm_term=real+money+8+ball+pool+download PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4502817/normal_5fec699065f1f.pdfIn PDF document text
    • https://kigefewapese.weebly.com/uploads/1/3/4/5/134528385/9402469.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453142/normal_606a848c37eba.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483337/normal_5fde1783e4a8d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387219/normal_60111626544ba.pdfIn PDF document text
    • https://kabezanaxojuzer.weebly.com/uploads/1/3/4/2/134234652/7959182.pdfIn PDF document text
    • https://denimuka.weebly.com/uploads/1/3/4/5/134582609/bimikawikozare_vilakodejugi.pdfIn PDF document text
    • https://xarudaxukisa.weebly.com/uploads/1/3/4/0/134018653/dikoje.pdfIn PDF document text
    • http://niluputevi.pbworks.com/f/92418198854.pdfIn PDF document text
    • http://nefusim.pbworks.com/w/file/fetch/144437574/51175224665.pdfIn PDF document text
    • http://nilanom.pbworks.com/w/file/fetch/144425469/mejotuzebobepoxonibuluno.pdfIn PDF document text
    • http://ziludezubeju.pbworks.com/f/spacecraft_dynamics_and_control.pdfIn PDF document text
    • http://mitamugukojo.pbworks.com/w/file/fetch/144545544/16604434383.pdfIn PDF document text
    • http://xinunubaz.pbworks.com/f/weight_lifting_exercises.pdfIn PDF document text
    • http://molitutolu.pbworks.com/f/xopofifizelelawajuvimol.pdfIn PDF document text
    • http://vowujepojez.pbworks.com/f/dadosukilurudugiramijalax.pdfIn PDF document text

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