Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a690b067a02bb66…

MALICIOUS

PDF

37.2 KB Created: 2020-09-16 17:22:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 44db4bcfb9cbe0732cfd05197954f71e SHA-1: 9c16662aa33f0c01395aed035d5cb214c925c4ab SHA-256: 2a690b067a02bb66e6f72f03c58bc4b5db074b849acc3882b7d4c4e94f83f7c5
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/wix?keyword=doom+unblocked+games+weebly'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to external PDFs hosted on domains like cdn.shopify.com. The document body contains obfuscated text and the malicious URL, suggesting an attempt to disguise the malicious intent as a game link. No scripts were extracted from this sample.

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=doom+unblocked+games+weebly
    • http://files.brendanswallace.com/uploads/1/3/0/8/130873945/lofera.pdf
    • http://niwunuveb.pakopablosstudios.com/uploads/1/3/0/8/130814933/mojunepepug_xipilosuzineja_bolaf.pdf
    • http://kowak.norcalsquirrels.com/uploads/1/3/2/8/132814170/kuxefebosovo.pdf
    • http://pugeri.burkittsvilleruritanclub.org/uploads/1/3/0/7/130775403/734428673caba26.pdf
    • http://files.amycooter.com/uploads/1/3/0/8/130873997/6704024.pdf
    • https://cdn.shopify.com/s/files/1/0433/0350/1989/files/arundel_mills_mall_map.pdf
    • https://cdn.shopify.com/s/files/1/0434/3041/2450/files/35257164462.pdf
    • https://cdn.shopify.com/s/files/1/0433/1782/1605/files/41159329925.pdf
    • https://cdn.shopify.com/s/files/1/0429/0193/0143/files/77197330883.pdf
    • https://cdn.shopify.com/s/files/1/0463/4158/7100/files/burafejopigenijejaweta.pdf
    • https://cdn.shopify.com/s/files/1/0440/0149/3142/files/46384775830.pdf
    • https://cdn.shopify.com/s/files/1/0432/9570/3204/files/barbie_hair_salon_game.pdf
    • https://cdn.shopify.com/s/files/1/0430/8090/8951/files/59218506811.pdf
    • https://cdn.shopify.com/s/files/1/0431/6997/2392/files/48786389412.pdf
    • https://cdn.shopify.com/s/files/1/0434/3549/1490/files/sagafawegoferivekadezuwi.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_off00005255.bin
991c63d14c44a033f0d024570fb6115ee083fbbcb9d41268f2677871b8206c21		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5255 5560 bytes
font_01_sfnt_off0000654e.bin
46d35c0ef2c6decb193005f83058fda9a596e03ab221761a43093f783a17e297		 pdf-font-stream PDF embedded font (sfnt) at offset 0x654E 10120 bytes

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