Malicious PDF — malware analysis report

Static analysis result for SHA-256 a4eeaab4a04df0fc…

MALICIOUS

PDF

52.6 KB Created: 2020-11-17 14:49:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b957cafb3d251ebd1b9d6173e9cc5f23 SHA-1: aafe658ff695fc29c47577d12408591f4b449b15 SHA-256: a4eeaab4a04df0fc724312e956f3da389076db04c71d9dd1ecece8077f06f6f5
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file is identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing lure. It contains an image-based interface with a clickable action, directing users to external URLs. The heuristic 'PDF_IMAGE_LURE' indicates a typical phishing setup where a screenshot hides a malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7181

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 52 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://traffine.ru/aws?utm_term=delete+twitter+account+android+app
    • https://latijivetazemor.weebly.com/uploads/1/3/0/7/130775002/bataza.pdf
    • https://votarozoxanobo.weebly.com/uploads/1/3/4/3/134315144/voferofirejibas-fifuloludot.pdf
    • https://tubomomumaxef.weebly.com/uploads/1/3/4/5/134508744/dozowu.pdf
    • https://cdn-cms.f-static.net/uploads/4370264/normal_5f8fc1139d622.pdf
    • https://cdn-cms.f-static.net/uploads/4485296/normal_5faeef07b9b66.pdf
    • https://nimubawelekuf.weebly.com/uploads/1/3/4/2/134265751/bajadesazixalexison.pdf
    • https://cdn-cms.f-static.net/uploads/4418365/normal_5f9a0dc86c415.pdf
    • https://lepitosamodovax.weebly.com/uploads/1/3/4/3/134335454/rukelibabep.pdf
    • https://lefedatit.weebly.com/uploads/1/3/0/7/130776734/zujulusejima-lixododibogar-wotoral-vegatusuwafa.pdf
    • https://cdn-cms.f-static.net/uploads/4425227/normal_5fa837ce7f0e0.pdf
    • https://uploads.strikinglycdn.com/files/8287ccc7-02de-406a-89b9-3c24d4d5f3f0/vigajotibesameporu.pdf
    • https://uploads.strikinglycdn.com/files/748ff7be-8978-4d60-a7da-27b6625341a0/20957361714.pdf
    • https://uploads.strikinglycdn.com/files/506cf4fb-0cf2-4773-8a38-756131c27178/dajosu.pdf

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