Malicious PDF — malware analysis report

Static analysis result for SHA-256 24651562cc9d6ad0…

MALICIOUS

PDF

50.6 KB Created: 2020-07-29 23:11:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 03285930bcffe243f8447ab574e71a8e SHA-1: b0fc9c66f42d84e8c6e65367c34f87bb822ec112 SHA-256: 24651562cc9d6ad03581697357cda476923c5936ca0995e1cdbae4918596fc0a
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, which points to 'ttraff.ru'. This indicates the document is designed to redirect users to malicious infrastructure. Additionally, a PDF link farm heuristic suggests the document is part of a larger SEO poisoning effort to distribute malicious files. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • 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.
  • 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://ttraff.ru/pify?keyword=arenas+movedizas+libro+pdf+gratis
    • http://files.belaccommunications.com/uploads/1/3/1/4/131437158/9955582.pdf
    • http://files.portlandcommunityfund.org/uploads/1/3/1/8/131871569/kevuseten.pdf
    • http://files.azpeorialodge31.org/uploads/1/3/2/7/132740978/9540137.pdf
    • http://files.shoprebelheart.com/uploads/1/3/0/7/130776265/voranizavoxilav.pdf
    • https://cdn.shopify.com/s/files/1/0431/2891/4074/files/ledukokakazodas.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/buxigol.pdf
    • https://cdn.shopify.com/s/files/1/0437/1510/0826/files/68210927480.pdf
    • https://cdn.shopify.com/s/files/1/0434/6550/6966/files/86762934162.pdf
    • https://cdn.shopify.com/s/files/1/0431/7829/5450/files/befusevatarunuvuwo.pdf
    • https://cdn.shopify.com/s/files/1/0431/4077/6090/files/68546135351.pdf
    • https://cdn.shopify.com/s/files/1/0438/2900/2390/files/87362576004.pdf
    • https://cdn.shopify.com/s/files/1/0435/9805/3535/files/85012268094.pdf
    • https://cdn.shopify.com/s/files/1/0435/0210/8836/files/bisilimirorutofozunimedif.pdf
    • https://cdn.shopify.com/s/files/1/0429/6340/2905/files/moduzoduwev.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • https://cdn.shopify.com/s/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000084e2.bin
878a0f00664134aee12f45ca67f50083b40c619ba17f0b23a61dd6022108d8b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x84E2 5388 bytes
font_01_sfnt_off00009723.bin
9f4260c0c24bd3695c06ec4cfd911da7557700b56afb99ccbc67d68c272fa9ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9723 11268 bytes

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