Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ab4b223b40c231f…

MALICIOUS

PDF

64.5 KB Created: 2020-12-27 23:54:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2a05ed93d1ec95bb7a2f0e709cfc4105 SHA-1: 2c410fbea97f299125c7549c0fa2631fc1f59f93 SHA-256: 5ab4b223b40c231fea3f4b5bb61cd6159330197c81b595775038c15f3954d292
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF containing an embedded URL that points to a suspicious domain. Heuristics and a machine learning classifier flagged the PDF as malicious, with ClamAV identifying it as a phishing trojan. The embedded URL likely leads to a malicious site for phishing or to download a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9627

Heuristics 3

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://trafffe.ru/strik?utm_term=samsung+galaxy+water+live+wallpaper
    • https://cdn-cms.f-static.net/uploads/4459057/normal_5fc2518f71717.pdf
    • https://cdn-cms.f-static.net/uploads/4378155/normal_5f8bf759bb4a5.pdf
    • https://cdn.sqhk.co/mavozopofug/CjdK4gh/rgb_led_controller_plc.pdf
    • https://cdn.sqhk.co/tamikoveken/CunQhdI/70709959192.pdf
    • https://cdn.sqhk.co/wuvupalib/cNYogdx/ragdoll_warriors_roblox_codes.pdf
    • https://static.s123-cdn-static.com/uploads/4448731/normal_5fdcbc20c4b8e.pdf
    • https://cdn-cms.f-static.net/uploads/4371272/normal_5f8dd3dc4168a.pdf
    • https://cdn.sqhk.co/nutakurij/iitouhh/82421667767.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/fizaxo/pojikuxuwuvevuf.pdf
    • https://s3.amazonaws.com/fuwenoxuzasila/13809857793.pdf
    • https://s3.amazonaws.com/tesotiwapax/bikevadumasorumevof.pdf
    • https://s3.amazonaws.com/kegovev/blue_sky_plan_4._6.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e0e1.bin
1c9141017f37b1c15072fb988fea06e006e350bc8a4aa1d11858d4e93ac1fe63		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE0E1 5564 bytes

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