Malicious PDF — malware analysis report

Static analysis result for SHA-256 a36b1a7dc22eda1a…

MALICIOUS

PDF

59.2 KB Created: 2020-08-30 05:57:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6888360c2458d8307491410f0da87f83 SHA-1: 3d471562b59a93670222a2e943495b65cb131fd2 SHA-256: a36b1a7dc22eda1a8549849b146acb5fe37fd3f41d537e08bde5c29711eccdaf
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. This indicates the document is designed to lure users to a potentially harmful website. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, suggesting a broad distribution or SEO manipulation tactic. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure.

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/wix?keyword=jetblue+seating+chart
    • https://static.usrfiles.com/ugd/89064d_cd3e4281954a4dcba3e0d6f0457f44e7.pdf
    • https://static.usrfiles.com/ugd/81d6a4_be23a4e2ed7a4cccb1fc63f7565519c8.pdf
    • https://static.usrfiles.com/ugd/b8c837_d3a0e089808f47c389381177e87b4416.pdf
    • https://static.usrfiles.com/ugd/6240f8_7ff35e2598e74845be4ed75f812fd5de.pdf
    • https://static.usrfiles.com/ugd/9b7d8a_fb89c5f813dc451da224744c6a30211a.pdf
    • https://cdn.shopify.com/s/files/1/0435/4444/5079/files/woboxusonel.pdf
    • https://cdn.shopify.com/s/files/1/0431/8684/7905/files/saluj.pdf
    • https://cdn.shopify.com/s/files/1/0429/3401/0015/files/62457654702.pdf
    • https://cdn.shopify.com/s/files/1/0440/8921/3093/files/9850131616.pdf
    • https://cdn.shopify.com/s/files/1/0435/5378/3957/files/lizuxolaxixovapapara.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/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009d34.bin
f2e36ee89e46b3514654490f924d903310078c9c70fb66aad0efde309e7c5c34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9D34 4964 bytes
font_01_sfnt_off0000adfc.bin
8cb399e91f844295e04f33b8f503334a279a3b94d0e03b38ac8e5d9fc9d7ae5b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xADFC 10732 bytes
font_02_sfnt_off0000d1ef.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD1EF 4324 bytes

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