Malicious PDF — malware analysis report

Static analysis result for SHA-256 b41675ef3aaf2203…

MALICIOUS

PDF

23.6 KB Created: 2020-10-03 06:27:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1c978b20a84e29531274e31afde2ea37 SHA-1: 5736fcc3224b14ee587971e6ee4aeb3516d6ca5f SHA-256: b41675ef3aaf22031a6db9e23b108b10a1a35f41cb611fbd6fa8626418343062
172 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document is designed as a lure, presenting a full-page image to trick the user into clicking a link. The primary malicious URL, https://ggtraff.ru/strik?keyword=dame+fortune+s+wheel+tarot, is identified as a known malicious redirector. The document also contains a large number of external PDF links, suggesting it's part of a link farm intended to distribute malicious content or traffic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

Heuristics 4

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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 23 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=dame+fortune+s+wheel+tarot
    • https://site-1038949.mozfiles.com/files/1038949/dawezaz.pdf
    • https://site-1038961.mozfiles.com/files/1038961/75890569262.pdf
    • https://site-1036719.mozfiles.com/files/1036719/43592225187.pdf
    • https://site-1039493.mozfiles.com/files/1039493/64887683689.pdf
    • https://site-1036871.mozfiles.com/files/1036871/nejalikiferikazedozid.pdf
    • https://site-1042785.mozfiles.com/files/1042785/sudalabok.pdf
    • https://site-1036939.mozfiles.com/files/1036939/90877054157.pdf
    • https://site-1039332.mozfiles.com/files/1039332/gawifiluwiwagi.pdf
    • https://uploads.strikinglycdn.com/files/edd2f21a-cb1b-4580-b752-d263dbd69781/84148046857.pdf
    • https://uploads.strikinglycdn.com/files/9191ddb5-05ed-4570-91bb-d48aa411246e/dejozirunotobonibomul.pdf
    • https://uploads.strikinglycdn.com/files/86008c3c-6af3-4d1b-a4c9-476e0d4794c0/senozemuginupur.pdf
    • https://uploads.strikinglycdn.com/files/09050080-5e5d-4282-9e07-027f1688989c/90524214437.pdf
    • https://cdn.shopify.com/s/files/1/0484/5030/6198/files/kuhn_rikon_pressure_cooker.pdf
    • https://cdn.shopify.com/s/files/1/0483/2126/5819/files/words_that_begin_with_mis.pdf

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