Malicious PDF — malware analysis report

Static analysis result for SHA-256 46287016bbcafae4…

MALICIOUS

PDF

52.6 KB Created: 2020-11-23 00:33:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7787fb3600dd83a19cf2b97f99d80904 SHA-1: 1df7eee0ae790b7bc2b3dae209f994c0881d9867 SHA-256: 46287016bbcafae4ac3cce94cf62d8e054599a71476ff1f4b72a3f9decba9250
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, containing a clickable action that leads to an external URL. ClamAV detection and ML classification further indicate malicious intent. The embedded URL, https://traffset.ru/aws?utm_term=java+7++64+bit+mac, is likely the initial point of compromise or a redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6878

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 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.
  • 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://traffset.ru/aws?utm_term=java+7++64+bit+mac
    • https://cdn-cms.f-static.net/uploads/4380871/normal_5f90e45f5b15b.pdf
    • https://lakozudixe.weebly.com/uploads/1/3/4/7/134704846/sadixubon.pdf
    • https://cdn-cms.f-static.net/uploads/4445881/normal_5fb48e1336f66.pdf
    • https://cdn-cms.f-static.net/uploads/4416918/normal_5f9fffba48748.pdf
    • https://cdn-cms.f-static.net/uploads/4386613/normal_5fa191b9aed4b.pdf
    • https://kibugaduxabe.weebly.com/uploads/1/3/4/5/134510017/8408556.pdf
    • https://uploads.strikinglycdn.com/files/a5b96bc2-fb74-4388-84e3-60b8a9cb0b81/surf_city_middle_school_staff_directory.pdf
    • https://uploads.strikinglycdn.com/files/98d488aa-813e-40a8-9fa9-bba364f0bc00/lixilowusebuxedid.pdf
    • https://uploads.strikinglycdn.com/files/fb861aaa-0e9f-4045-bbe3-9ab211d2986c/89552485086.pdf
    • https://uploads.strikinglycdn.com/files/77f1df62-0971-4162-9fd2-456d31203649/university_physics_with_modern_physi.pdf
    • https://uploads.strikinglycdn.com/files/7bce8a61-0eb9-456b-9c77-4ee49c6678d1/little_hinges_swing_big_doors.pdf
    • https://uploads.strikinglycdn.com/files/3fc48fda-b884-4e5a-a2aa-e8093605ee13/3083769318.pdf
    • https://uploads.strikinglycdn.com/files/230521e9-7248-42d0-9264-cf881cfed1cf/gijozewilonivot.pdf
    • https://uploads.strikinglycdn.com/files/e35f5363-fff6-4a11-99de-70c65a87c386/80626785477.pdf

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