Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd1247ea65f5fe2e…

MALICIOUS

PDF

39.0 KB Created: 2020-08-30 17:01:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7845d05accb31db422b2928a98b57219 SHA-1: 8e20b77c067ae4631976b5d5c2740c78418ec782 SHA-256: cd1247ea65f5fe2ed641e4315c97764c444483f49d5bd3922698ef0156e8c606
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/wix?keyword=tae+takemi+confidant+guide'. The document body, though heavily obfuscated, contains this URL and references a 'confidant guide', suggesting a social engineering lure. The file also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDF documents, likely to improve search engine ranking or distribute malicious content.

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=tae+takemi+confidant+guide
    • https://static.usrfiles.com/ugd/b8c837_21bd74cef4f34baca15867e4814c5181.pdf
    • https://static.usrfiles.com/ugd/b5aed9_c9ba033a15204b6faca73b3140c17e4b.pdf
    • https://static.usrfiles.com/ugd/b8c837_76747c74d2874c4486a7503f473a05dc.pdf
    • https://static.usrfiles.com/ugd/b8c837_9fc7cd52579b4cd58e18835e14608acb.pdf
    • https://static.usrfiles.com/ugd/b8c837_638cac4b10724680baa180b43a0714e8.pdf
    • https://static.usrfiles.com/ugd/b8c837_bf171a5ef2d744f5b6df74b9ed201237.pdf
    • https://static.usrfiles.com/ugd/4d6844_8d83df04f0db448388b4c5f58d18375e.pdf
    • https://static.usrfiles.com/ugd/0779a3_18468ce5258b41bb9ad0b8cdbe3e8907.pdf
    • https://cdn.shopify.com/s/files/1/0431/5889/6802/files/mefawo.pdf
    • https://cdn.shopify.com/s/files/1/0437/6798/8376/files/nubonapegin.pdf
    • https://cdn.shopify.com/s/files/1/0436/9675/0742/files/43618079026.pdf
    • https://static.usrfiles.com/ugd/0a593f_7367f4c3da3e48429bd8abb45a56f052.pdf
    • https://static.usrfiles.com/ugd/b8c837_fdfa90182a5d4bc28e25f13ed5d7ec77.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005bbd.bin
81fe0c4f2c124d0838ee96a9df369d074ca5105a08c2bb5a97327be1a41351e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BBD 5048 bytes
font_01_sfnt_off00006ce1.bin
76d06901b448ede89e04efe66008a6d760b84cfe4717e87c1819fa8d68f7a62a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CE1 10248 bytes

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