Malicious PDF — malware analysis report

Static analysis result for SHA-256 a78051d4772d1443…

MALICIOUS

PDF

18.6 KB Created: 2020-10-30 15:38:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2eff18e32d2b62ab126ad032ce91d853 SHA-1: 24db3c2a12e3fde2e05f724815bbeccae2ea11a8 SHA-256: a78051d4772d1443a2ef025a431a176cfbae6b4ff50f36c7ba8dee14ebf6e3c8
112 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only document designed as a lure, typical of phishing attacks. It contains a critical heuristic firing for a malicious redirector link pointing to 'gettraff.ru'. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect the user to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9957

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 18 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/aws?keyword=molarity+practice+problems+answer+key+with+work
    • https://savakorudefipe.weebly.com/uploads/1/3/2/3/132303238/6ea7c8fdd0cb6fa.pdf
    • https://zubosaverebaf.weebly.com/uploads/1/3/4/4/134468350/e41b95cb9115e5.pdf
    • https://disaxugotusineg.weebly.com/uploads/1/3/1/8/131871710/469b1ce.pdf
    • https://cdn-cms.f-static.net/uploads/4368229/normal_5f897d4dc78dc.pdf
    • https://lodirunesu.weebly.com/uploads/1/3/0/8/130874391/b1a10bd.pdf
    • https://cdn-cms.f-static.net/uploads/4384028/normal_5f8ddeba4a393.pdf
    • https://s3.amazonaws.com/gidibesuxi/algorithms_and_flowcharts_in_c_examples.pdf
    • https://cdn.shopify.com/s/files/1/0430/7451/9191/files/33071432456.pdf
    • https://s3.amazonaws.com/naxizugenabi/gofofofixes.pdf
    • https://s3.amazonaws.com/sodoxi/2353739039.pdf
    • https://s3.amazonaws.com/numegubowalonan/escalation_protocol_this_week_august_2020.pdf
    • https://cdn.shopify.com/s/files/1/0504/8886/9055/files/opera_mini_vpn_ama_android.pdf