Malicious PDF — malware analysis report

Static analysis result for SHA-256 1b28b9a236b3212b…

MALICIOUS

PDF

16.0 KB Created: 2020-10-09 18:23:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 88da3d6a60b02547277a912cd98254b2 SHA-1: 5efcc06c7a5e1cb1373665385770ea6e689d275b SHA-256: 1b28b9a236b3212b2a7ce35982edeeb648ce3cb0ab24121dc9868f51610f2077
112 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only lure, typical for phishing campaigns. It contains a malicious redirector link to 'ggtraff.ru', which is flagged as malicious infrastructure. The document's structure and the presence of a click-outward action strongly suggest it's designed to lead the user to a harmful destination.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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 16 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://ggtraff.ru/strik?keyword=electrolux+ice+maker+recall
    • https://site-1038611.mozfiles.com/files/1038611/85778550373.pdf
    • https://site-1038836.mozfiles.com/files/1038836/66766188294.pdf
    • https://site-1036988.mozfiles.com/files/1036988/zezadasitojuvidov.pdf
    • https://site-1040618.mozfiles.com/files/1040618/vemawojazu.pdf
    • https://site-1039517.mozfiles.com/files/1039517/42255799288.pdf
    • https://cdn.shopify.com/s/files/1/0498/5277/6603/files/motion_to_expedite_hearing.pdf
    • https://cdn.shopify.com/s/files/1/0484/5587/6769/files/676382305.pdf
    • https://cdn.shopify.com/s/files/1/0483/9237/2381/files/marx_on_democracy_quotes.pdf
    • https://cdn.shopify.com/s/files/1/0480/4123/0495/files/nosatuzipu.pdf
    • https://cdn.shopify.com/s/files/1/0435/7039/7352/files/49809238351.pdf
    • https://cdn.shopify.com/s/files/1/0496/1189/9029/files/44958385553.pdf
    • https://cdn.shopify.com/s/files/1/0486/2404/2149/files/59229383731.pdf

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