Malicious PDF — malware analysis report

Static analysis result for SHA-256 dac4dbdc043292dd…

MALICIOUS

PDF

49.6 KB Created: 2020-12-02 19:42:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 43361184d8f246bc54d69ea1abd227b0 SHA-1: 844b37740e8927a4bdbdbb8556bd6370624a8a64 SHA-256: dac4dbdc043292ddc8f037cecb7bc24cca14fd6b57367fb8a8b09c7a3bc06893
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file is identified as malicious by multiple heuristics and a machine learning classifier. It employs an image-only lure, typical of phishing, with an embedded URI that points to a suspicious domain. The file's structure and content suggest it's designed to trick users into navigating to a malicious website.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6502

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 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://trafffi.ru/aws?utm_term=adjectives+worksheet+for+grade+7
    • https://cdn-cms.f-static.net/uploads/4385437/normal_5fafe02c77593.pdf
    • https://cdn-cms.f-static.net/uploads/4370288/normal_5f89e9a8260a3.pdf
    • https://natizupasa.weebly.com/uploads/1/3/1/4/131437725/dikogi.pdf
    • https://cdn-cms.f-static.net/uploads/4370064/normal_5f964a3250454.pdf
    • https://cdn-cms.f-static.net/uploads/4367277/normal_5fba4573a69da.pdf
    • https://nopirirog.weebly.com/uploads/1/3/4/2/134234714/f140f88df.pdf
    • https://s3.amazonaws.com/vexeliku/niduwomizejo.pdf
    • https://uploads.strikinglycdn.com/files/93628d39-47d4-4f2d-b2a3-8b9326c7948d/zuvowodugejefi.pdf
    • https://s3.amazonaws.com/jixerubowi/42767906967.pdf
    • https://s3.amazonaws.com/jemazejodep/87058557072.pdf
    • https://s3.amazonaws.com/dudigonifu/vertebrate_paleontology_benton_free.pdf
    • https://s3.amazonaws.com/fajonubinomeder/liliduvuxowifipuleza.pdf