Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4d0678023f61c45…

MALICIOUS

PDF

49.6 KB Created: 2020-11-29 22:43:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 295ceb41774ef6fdbaa5c96e64a23f64 SHA-1: 7f5992bc2b93b5b12575e321b60964876e111e93 SHA-256: c4d0678023f61c45237755713a12495aa4e5e53765f10fce7a4e6955b816dc3c
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document is identified as malicious due to its structure and embedded links. It functions as a phishing lure, presenting an image-based interface to entice users to click on malicious URLs. The presence of multiple links to disposable hosting and a known malicious redirector indicates an attempt to distribute further malicious content or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7011

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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 49 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.
  • 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://ggtraff.ru/aws?utm_term=android+games+support+bluetooth+controller
    • https://fevapeju.weebly.com/uploads/1/3/4/4/134468187/nipik.pdf
    • https://jebapawobukil.weebly.com/uploads/1/3/4/5/134521284/kalovolowazubat-pejitagusewasa.pdf
    • https://juziwujaxizeze.weebly.com/uploads/1/3/4/6/134685910/4088350.pdf
    • https://cdn-cms.f-static.net/uploads/4406501/normal_5f94305fb549f.pdf
    • https://cdn-cms.f-static.net/uploads/4501042/normal_5fbe6e315f30b.pdf
    • https://retujofidevi.weebly.com/uploads/1/3/4/6/134621577/cc073134.pdf
    • https://jikeberu.weebly.com/uploads/1/3/1/8/131857846/9abce3676732.pdf
    • https://uploads.strikinglycdn.com/files/54224569-b480-4409-bb56-5724dadcda92/o_que__microestrutura_de_um_material.pdf
    • https://uploads.strikinglycdn.com/files/ecdc4e57-4b13-4d53-aabc-dbb7542014d5/80531196384.pdf
    • https://uploads.strikinglycdn.com/files/f956cf6c-000e-4816-9083-7118644191d4/20934664170.pdf
    • https://uploads.strikinglycdn.com/files/87c84ade-626d-4857-9a7b-d03f50bbb827/binding_of_isaac_technology_.5.pdf
    • https://uploads.strikinglycdn.com/files/9d91670c-a9ef-43cb-b6c3-05366b6d87d0/kapikisirojojuxujolokovir.pdf
    • https://s3.amazonaws.com/jitimesolagun/pupuk.pdf

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