Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7b0ea789f7e91f5…

MALICIOUS

PDF

51.2 KB Created: 2020-11-09 20:16:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 05e60dcd92a89a09bb8fe4dab637badc SHA-1: 2e8447ca3ecdf5380814fef1bf645c8b65af01a0 SHA-256: b7b0ea789f7e91f501ea20b769eeab602874af7fd446ddc03de796186b0bfc4b
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file is identified as malicious by ClamAV and an ML classifier. It employs a common phishing tactic by presenting a full-page image as a lure, with an embedded URI that directs users to an external URL. This suggests the document is designed to facilitate initial access through social engineering, likely leading to further malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6878

Heuristics 4

  • 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 51 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://traffking.ru/aws?keyword=wizard+farming+guide+ragnarok+mobile
    • https://cdn-cms.f-static.net/uploads/4454287/normal_5fa591e5ce4d6.pdf
    • https://cdn-cms.f-static.net/uploads/4379217/normal_5f99bb00f27d1.pdf
    • https://cdn-cms.f-static.net/uploads/4421342/normal_5f9e545e0eba0.pdf
    • https://cdn-cms.f-static.net/uploads/4369304/normal_5f8a1db9f0150.pdf
    • https://cdn-cms.f-static.net/uploads/4408863/normal_5f9df69d73bd7.pdf
    • https://uploads.strikinglycdn.com/files/bb32108a-ac8d-4101-aab3-0bdcf3add3d5/referencia_mixta_en_excel.pdf
    • https://s3.amazonaws.com/fowonaxul/zapupiwu.pdf
    • https://uploads.strikinglycdn.com/files/79dbe438-3eba-4007-9a59-37a6beea99f7/check_mark_symbol_on.pdf
    • https://uploads.strikinglycdn.com/files/de6b6095-a54d-4533-9c77-9c9d52690c42/60511372569.pdf
    • https://uploads.strikinglycdn.com/files/b0b8a2b4-a507-416e-a711-88fc846b8c17/rekuzivalabegavigosara.pdf
    • https://uploads.strikinglycdn.com/files/3edf0e25-8941-4baf-80c1-f841e90c8707/wuvaj.pdf
    • https://uploads.strikinglycdn.com/files/fadf8913-8433-44ad-89f1-4269b5de9149/80765396276.pdf
    • https://uploads.strikinglycdn.com/files/dbcee1a0-ea91-46c2-9906-be8277581002/rugag.pdf