Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9622f1d8e647935…

MALICIOUS

PDF

34.7 KB Created: 2020-08-31 04:39:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4ba48cb67f455ed699c18390bb3b96bd SHA-1: 473d6b4ea89bab564e59c1b00fa4e68103fddd05 SHA-256: e9622f1d8e64793593d0e629408eaba03cae35c055eeac813e879e955826d996
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 specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'friends saison 4 streaming' and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of a link farm heuristic further indicates an attempt to 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.me/wix?keyword=friends+saison+4+streaming
    • https://static.usrfiles.com/ugd/ea78e0_a96fa95c1f0d4a008853015d5d409b25.pdf
    • https://static.usrfiles.com/ugd/b8c837_255247082a2043cfad4a63756a91029a.pdf
    • https://static.usrfiles.com/ugd/dc51bb_6ca30ee1a0b14b4c8a7b1bd9113103d9.pdf
    • https://static.usrfiles.com/ugd/b8c837_6836a9617dd74fd388871391ef6bd062.pdf
    • https://cdn.shopify.com/s/files/1/0433/4669/0203/files/dezuzujagodobuzut.pdf
    • https://cdn.shopify.com/s/files/1/0436/0696/6429/files/67320435773.pdf
    • https://cdn.shopify.com/s/files/1/0434/6845/6102/files/national_dysphagia_diet_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0434/5040/0928/files/67255115343.pdf
    • https://cdn.shopify.com/s/files/1/0431/6574/5303/files/38680666980.pdf
    • https://cdn.shopify.com/s/files/1/0446/7880/7705/files/maplestory_legion_guide.pdf
    • https://cdn.shopify.com/s/files/1/0436/2554/5890/files/deguzo.pdf
    • https://cdn.shopify.com/s/files/1/0434/7727/0692/files/5815185758.pdf
    • https://cdn.shopify.com/s/files/1/0436/0221/5074/files/gigodoloxaludujoremivib.pdf
    • https://cdn.shopify.com/s/files/1/0430/1157/1865/files/battleship_movie_online_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/7152/8344/files/28157972410.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_off00004add.bin
e08246ef7c37cc7c8d91d741195dc573b843ddea025668a2365b1dd452bbff21		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4ADD 5156 bytes
font_01_sfnt_off00005c54.bin
0e110a146ecc7c183822baa640bbb4b31ec67444110adebf4250aa6b635698f2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C54 9868 bytes

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