Malicious PDF — malware analysis report

Static analysis result for SHA-256 568c42f364a1cd16…

MALICIOUS

PDF

41.2 KB Created: 2020-08-29 08:16:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 635c08150482d2019e7215581049c51a SHA-1: 42126148fd399c823ed031cb77781fe758344842 SHA-256: 568c42f364a1cd16ebce865dd1900c16dd4873d184775295575ab4b2d6b0b28f
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with one heuristic specifically identifying it as a PDF link farm. One of the embedded URLs, 'https://ttraff.me/wix?keyword=directing+film+techniques+and+aesthe', is flagged as a malicious redirector. The document body appears to be malformed or obfuscated, but the presence of numerous links suggests a social engineering or SEO manipulation tactic.

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=directing+film+techniques+and+aesthe
    • https://static.usrfiles.com/ugd/b8c837_4e3537f3090f4edbaf929c0d4e6f02a9.pdf
    • https://static.usrfiles.com/ugd/b8c837_249d48c19f4e44d79ddff24efe81c97d.pdf
    • https://static.usrfiles.com/ugd/b8c837_95df6e8f657f45de8168c8e1257aeb4f.pdf
    • https://static.usrfiles.com/ugd/b8c837_6245bf216f30484d83cdd35d1fab4265.pdf
    • https://cdn.shopify.com/s/files/1/0430/3349/3658/files/the_witcher_3_guide_to_gwent.pdf
    • https://cdn.shopify.com/s/files/1/0440/8734/5304/files/fodesebiwidume.pdf
    • https://cdn.shopify.com/s/files/1/0430/2965/9797/files/livaxeboxelezuluwozi.pdf
    • https://cdn.shopify.com/s/files/1/0429/8407/9523/files/14620282378.pdf
    • https://cdn.shopify.com/s/files/1/0428/5802/1027/files/fabubetu.pdf
    • https://cdn.shopify.com/s/files/1/0429/9613/8137/files/blu_ray_player_software_windows_10.pdf
    • https://cdn.shopify.com/s/files/1/0429/1615/1459/files/information_security_objective_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0428/2010/8455/files/zebufibitalebigugodagekin.pdf
    • https://static.usrfiles.com/ugd/b8c837_2092503836ad4d3d90a26dd88a7877b1.pdf
    • https://static.usrfiles.com/ugd/b8c837_92159ea240ab4638bb195d9e6b6e2f53.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_off0000630f.bin
f057f43e0ee920b8854c2b69dde61cbe23e7b8e93fc97cdced5a1eb6261187bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x630F 5560 bytes
font_01_sfnt_off000075c5.bin
b74483ec4af123900d688c45a83d70a8f249c275aca1d657605c963555efab2f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x75C5 10076 bytes

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