Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb41beddb6eab3a8…

MALICIOUS

PDF

24.3 KB Created: 2020-11-03 17:21:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2c80a839da6ad67405ecfd1cac92dbaa SHA-1: 5ed57f7e296f7d870b075a1b8fdb380365058e08 SHA-256: fb41beddb6eab3a882ae7b73ff8e4b5df0fe3f23a27566d718be676ac2392c47
112 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is an image-only document designed as a lure, containing a clickable link that redirects to a known malicious infrastructure. The embedded URL, 'https://gettraff.ru/strik?keyword=code.org+unit+2+assessment+answers', is flagged as a malicious redirector. This suggests the document's primary purpose is to lead the user to a malicious site, likely for phishing or to download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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 24 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://gettraff.ru/strik?keyword=code.org+unit+2+assessment+answers
    • https://cdn-cms.f-static.net/uploads/4384639/normal_5f9c6194adff6.pdf
    • https://cdn-cms.f-static.net/uploads/4418001/normal_5f987864c0748.pdf
    • https://cdn-cms.f-static.net/uploads/4379362/normal_5f960f6e89ac0.pdf
    • https://cdn-cms.f-static.net/uploads/4368497/normal_5f9ae961acc03.pdf
    • https://cdn-cms.f-static.net/uploads/4366055/normal_5f87dd5398d17.pdf
    • https://cdn-cms.f-static.net/uploads/4372740/normal_5f9579e1256e7.pdf
    • https://jeponiruwapin.weebly.com/uploads/1/3/0/7/130776483/gigufoteworakef-bezari.pdf
    • https://cdn-cms.f-static.net/uploads/4370791/normal_5f9290f033771.pdf
    • https://pejopazuzaguwoz.weebly.com/uploads/1/3/2/8/132815183/vofixakiwofap_ruvativup_suwat_lajulexovoj.pdf
    • https://s3.amazonaws.com/rimejiguvif/zudurulezukuwupamosa.pdf
    • https://s3.amazonaws.com/dovulavavo/pulobewe.pdf
    • https://s3.amazonaws.com/firigugixujotov/paul_crouch_jr._wife.pdf
    • https://s3.amazonaws.com/sizadagazagaj/razosar.pdf

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