Malicious PDF — malware analysis report

Static analysis result for SHA-256 64df490e4966c3b1…

MALICIOUS

PDF

49.6 KB Created: 2020-11-17 11:43:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d6455f147e7b36a9d83eb09eebecabb8 SHA-1: 1c0a54eea38468005d7f9ecd0390e8e194a868e9 SHA-256: 64df490e4966c3b1b7ccc51610455ab626d4ef6f6a617c07be17b78f23dbc44d
174 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only lure, typical for phishing or malware distribution. It contains numerous external links, including one pointing to 'traffine.ru', suggesting a redirection to a malicious site. The ClamAV detection and ML classifier further support its malicious nature, indicating it's likely a phishing or trojan delivery mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7360

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • 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=annotating+pdf+surface+pro
    • https://topejaliwas.weebly.com/uploads/1/3/4/3/134305960/61c57f8881e76a.pdf
    • https://cdn-cms.f-static.net/uploads/4383924/normal_5f9e9538e5dd0.pdf
    • https://babinekisifuve.weebly.com/uploads/1/3/2/6/132696104/vasobujixoremiwaj.pdf
    • https://kexoxuneve.weebly.com/uploads/1/3/4/5/134501441/bolutupa.pdf
    • https://difomojixi.weebly.com/uploads/1/3/4/3/134319012/acbd0b1b21a.pdf
    • https://togitarusufojir.weebly.com/uploads/1/3/2/6/132681229/debijatugad_zubizaba_vamugajido.pdf
    • https://vinazawodix.weebly.com/uploads/1/3/4/3/134352366/zugadedifumenegasux.pdf
    • https://kidunaxu.weebly.com/uploads/1/3/1/4/131437100/e1f2b4e3f811cbf.pdf
    • https://davovexo.weebly.com/uploads/1/3/4/3/134355956/7839c0.pdf
    • https://cdn-cms.f-static.net/uploads/4420604/normal_5f9cbf4f5b86e.pdf
    • https://bogadisosupotaj.weebly.com/uploads/1/3/0/7/130776541/kiwinawadana.pdf
    • https://vafumigoku.weebly.com/uploads/1/3/1/3/131384305/bezodagupu_nomamepo_kagexagojo_bikafusixer.pdf
    • https://uploads.strikinglycdn.com/files/ba849a1d-1dbe-4387-8a47-0000724283ae/bojogi.pdf
    • https://uploads.strikinglycdn.com/files/3380b74b-ffc8-47cb-8933-65b56cc8f897/63291755051.pdf
    • https://uploads.strikinglycdn.com/files/360c4d90-43e0-40d0-b87a-3273aaa2a6e9/crop_top_and_pencil_skirt_set_online_india.pdf
    • https://uploads.strikinglycdn.com/files/6faa8ad5-6dde-48e6-8950-986e0c915b15/wifi_transfer_pro_apk.pdf

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