Malicious PDF — malware analysis report

Static analysis result for SHA-256 c108167063199587…

MALICIOUS

PDF

61.2 KB Created: 2020-08-31 08:55:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 474e15e0f57e7babb0cdfd1e47cfa49b SHA-1: 418537e7ff2fcbedfb8030216eef2ee19c86cdd3 SHA-256: c108167063199587b990db6276702bcd0b039cc84a0f0a6723b7bacd4a640747
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. This URL is presented within the document body, disguised as a link to a 'complete guide to bible journaling'. The PDF also exhibits characteristics of a link farm, with numerous embedded links, and a high-severity heuristic indicates a payment redirection lure, suggesting a business email compromise pattern. No scripts were extracted from this sample.

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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise 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.cc/wix?keyword=complete+guide+to+bible+journaling
    • https://cdn.shopify.com/s/files/1/0429/2745/6419/files/mathswatch_answers_angles_in_a_triangle.pdf
    • https://cdn.shopify.com/s/files/1/0434/9201/6280/files/3423645234.pdf
    • https://cdn.shopify.com/s/files/1/0433/8784/6806/files/61648984251.pdf
    • https://static.usrfiles.com/ugd/3aca14_f75ccc3dfbec40d194797d1d1fbd50bc.pdf
    • https://static.usrfiles.com/ugd/b8c837_aad08d6135b14cf6b8a216cea17e477a.pdf
    • https://static.usrfiles.com/ugd/7d1dc9_f236f4a25659408b8ceb35e96ebc7c6a.pdf
    • https://static.usrfiles.com/ugd/b8c837_baae0ff5563447b0846508726b71a5b3.pdf
    • https://static.usrfiles.com/ugd/4d6844_946cd0ee12714848ba885e56762bb17c.pdf
    • https://cdn.shopify.com/s/files/1/0438/3296/7318/files/45342797741.pdf
    • https://cdn.shopify.com/s/files/1/0435/3749/8271/files/sewuzijex.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_off0000a6fd.bin
3e78e4331891acfbee35d642edfd1c1ad04ce59b6b7a1bed044f5a0c61b76ab1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA6FD 5224 bytes
font_01_sfnt_off0000b89c.bin
8770a9d16f6ec8ed1e04f7f31595c1fd3834ff76ff6f55291086ab87d6d749e8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB89C 2268 bytes
font_02_sfnt_off0000c2ae.bin
0a5279fdea3de666bab55ccc88b22383c22e64d3557c64f364f10b97cfcfe1d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC2AE 10872 bytes

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