Malicious PDF — malware analysis report

Static analysis result for SHA-256 494c830ecab4d369…

MALICIOUS

PDF

44.3 KB Created: 2020-07-27 14:50:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6216b3fa9f831847063c050fa808b3f9 SHA-1: e48fc20f332ac1572f530d5dd8774816a9c2cda6 SHA-256: 494c830ecab4d369556f3b8b7c10cc44d96fbb4b0b3108036255820abb173f95
120 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a known malicious domain, disguised with a lure related to a government employee benevolent fund application. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources, likely for SEO manipulation or to host further malicious content. The primary malicious URL identified is ttraff.com.

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/pify?keyword=punjab+government+employees+benevolent+fund+application+form
    • http://files.transawareness.org/uploads/1/3/1/3/131398097/5102411.pdf
    • http://files.campkenosee.net/uploads/1/3/1/3/131381288/543828.pdf
    • http://files.annjamescounseling.com/uploads/1/3/2/6/132681910/829544.pdf
    • http://files.clinicamenta.com/uploads/1/3/0/9/130969185/risuxuwerevud.pdf
    • https://cdn.shopify.com/s/files/1/0433/8168/6439/files/vugeda.pdf
    • https://cdn.shopify.com/s/files/1/0437/0300/9434/files/judojuvonepujak.pdf
    • https://cdn.shopify.com/s/files/1/0430/7759/9383/files/kuturukozapi.pdf
    • https://cdn.shopify.com/s/files/1/0434/9440/8352/files/texeje.pdf
    • https://cdn.shopify.com/s/files/1/0430/1537/2953/files/weweduzegu.pdf
    • https://cdn.shopify.com/s/files/1/0429/1110/5183/files/zabuzupazusanev.pdf
    • https://cdn.shopify.com/s/files/1/0437/5363/5989/files/20874096545.pdf
    • https://cdn.shopify.com/s/files/1/0434/5475/9069/files/71306923790.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/81579197248.pdf
    • https://cdn.shopify.com/s/files/1/0432/8590/5576/files/xewakenozujelakad.pdf
    • https://cdn.shopify.com/s/files/1/0431/7154/5237/files/folasubapifetagewekuw.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/
    • https://cdn.shopify.com/s/files/1/0434

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a73.bin
c312bdb05879eea4af84beefeb46fc0d0df537fdb223fc5ef72a3c05ae5b75fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A73 5736 bytes
font_01_sfnt_off00007de8.bin
af4ef35f2f9a10c9ce09b951530c6f33b88f742ec842f088393c9d627097a3af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7DE8 10444 bytes

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