Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf3d80888861bd3a…

MALICIOUS

PDF

23.6 KB Created: 2020-10-13 18:50:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d0a0e214ed2aac46733070823e2aa2e SHA-1: 051b8e06a6addea93d656468462ae89e2cbad41d SHA-256: cf3d80888861bd3a2a0dd323b77a97c7952586b9618cf8579d49331f334d9a8e
172 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common screenshot lure technique, presenting itself as an image to entice users into clicking a link. The primary link, https://cctraff.ru/strik?keyword=methods+of+sludge+treatment+and+disposal+pdf, is identified as a malicious redirector, likely leading to further malicious content or a phishing page. The document also contains a large number of external PDF links, characteristic of SEO link farm abuse, which further supports the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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://cctraff.ru/strik?keyword=methods+of+sludge+treatment+and+disposal+pdf
    • https://cdn.shopify.com/s/files/1/0496/6609/7309/files/sig_romeo_1_pro_shroud.pdf
    • https://cdn.shopify.com/s/files/1/0429/2119/7724/files/husqvarna_125bt_air_filter.pdf
    • https://cdn.shopify.com/s/files/1/0482/9066/0513/files/42966323302.pdf
    • https://cdn.shopify.com/s/files/1/0483/2464/0932/files/odessa_tx_warrants.pdf
    • https://uploads.strikinglycdn.com/files/df33c637-c9bb-40e7-a039-d5d8e09e2ee1/lagobusobipenabemewut.pdf
    • https://uploads.strikinglycdn.com/files/0db3d56f-d132-4e9f-9436-25d75519c864/54724863913.pdf
    • https://uploads.strikinglycdn.com/files/f14a2c3a-54e5-4335-92fd-4d066f82ad65/42894043112.pdf
    • https://uploads.strikinglycdn.com/files/36520f4d-6377-4778-8d65-e5af0e13c0a5/28880136303.pdf
    • https://uploads.strikinglycdn.com/files/00f6a7ca-8eb3-4a51-9dfe-d03d6409aa1b/95285079805.pdf
    • https://uploads.strikinglycdn.com/files/f4183b4c-b669-4bb3-8a8e-e75dd8251bef/99788345981.pdf
    • https://uploads.strikinglycdn.com/files/d92fcf9a-7b22-4c21-93d3-2f00046b6a92/94765110183.pdf
    • https://uploads.strikinglycdn.com/files/dbc997f3-b346-42d9-97d7-3f977ed78162/fagijoruxab.pdf
    • https://cdn.shopify.com/s/files/1/0498/8603/6126/files/wileviwevuvufikoxupikaver.pdf
    • https://cdn.shopify.com/s/files/1/0432/5097/4888/files/battle_of_the_year_the_dream_team_full_movie_online_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/0876/1751/files/37382046690.pdf
    • https://cdn.shopify.com/s/files/1/0440/3652/2149/files/25848507659.pdf
    • https://cdn.shopify.com/s/files/1/0488/9844/1375/files/michelin_guide_san_diego_2019.pdf

Open this report in the interactive analyzer, or submit your own file for analysis.