Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed6af79a1153f436…

MALICIOUS

PDF

42.3 KB Created: 2020-08-29 12:03:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe99c48bdf0f811d11cb459879916ff6 SHA-1: 656c9c4ff2988f4d67092374824fc140ed387060 SHA-256: ed6af79a1153f4368a98bc681911ae18bdbc234b90889e857da737cdc15c0a6a
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one heuristic specifically identifying it as a PDF link farm. The primary malicious URL, ttraff.com, is flagged as a redirector. The document body, though partially corrupted, contains text related to 'Sega genesis sword of vermilion' and the wkhtmltopdf application, suggesting a lure or obfuscation tactic. The presence of a link farm and a malicious redirector indicates an attempt to lead users to harmful 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.com/wix?keyword=sega+genesis+sword+of+vermilion
    • https://static.usrfiles.com/ugd/b8c837_2c921d34db1a45f79c7b63bb102cc984.pdf
    • https://static.usrfiles.com/ugd/b8c837_63f4e57ffacc416aaa89c111360fe830.pdf
    • https://static.usrfiles.com/ugd/b8c837_353b0119927641cb82803edbdeb8fc6f.pdf
    • https://static.usrfiles.com/ugd/b8c837_319dcc4883274e6bb420b8e9bea3a978.pdf
    • https://static.usrfiles.com/ugd/b8c837_5499a6254b394d6bad834e2fde2732b3.pdf
    • https://static.usrfiles.com/ugd/b8c837_286e98460dea49649cd398d76478a1db.pdf
    • https://static.usrfiles.com/ugd/b8c837_a90d8664a6a343a29c12e1403f3a203a.pdf
    • https://static.usrfiles.com/ugd/b8c837_f6dc46405b074502859cef609ce0d915.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/31968244380.pdf
    • https://cdn.shopify.com/s/files/1/0437/5393/0904/files/breeds_of_cattle.pdf
    • https://cdn.shopify.com/s/files/1/0433/8617/5651/files/aadhar_card_password_hint.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_off00005e97.bin
1bcea796c86d0dcdd91f8e234b612a9e27b30ae6fa77956845fba508ec6aca91		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E97 5484 bytes
font_01_sfnt_off0000713c.bin
3fbc622fb6cd2da7759a5911032f07a61f9b7bf23810a6b9cad51544a444b185		 pdf-font-stream PDF embedded font (sfnt) at offset 0x713C 14004 bytes

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