Malicious PDF — malware analysis report

Static analysis result for SHA-256 44ab8c3cb0a19c8a…

MALICIOUS

PDF

33.1 KB Created: 2020-08-03 06:48:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 95513eb0d6471dd3a5448ac078283baf SHA-1: 9841bea66d739f712fbc43445de071b834e0f5fb SHA-256: 44ab8c3cb0a19c8a747e5d6952e484776a0f3a9b8efbaf6e5c861da98f423c4b
120 Risk Score

Malware Insights

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

The PDF file contains a link farm with 14 external PDF links, many hosted on cdn.shopify.com, and a primary redirector link to 'ttraff.cc'. The document body, though heavily obfuscated, contains the text 'Telugu movies in nj' and the redirector URL, suggesting a lure to potentially malicious content. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms the redirector is associated with malicious infrastructure.

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.cc/pify?keyword=telugu+movies+in+nj
    • http://files.freelandfairs.com/uploads/1/3/0/8/130814342/7650499.pdf
    • http://files.briannstephenson.com/uploads/1/3/1/6/131606758/5c3f0a44e18162.pdf
    • http://files.cyclingnewforest.org/uploads/1/3/1/8/131856904/9162388.pdf
    • https://cdn.shopify.com/s/files/1/0439/5306/2043/files/kaseruxo.pdf
    • https://cdn.shopify.com/s/files/1/0430/5960/9753/files/midnight_commander_mac.pdf
    • https://cdn.shopify.com/s/files/1/0428/4170/2567/files/10845550057.pdf
    • https://cdn.shopify.com/s/files/1/0430/2602/2557/files/82265495169.pdf
    • https://cdn.shopify.com/s/files/1/0428/6103/5686/files/fizodimubinekapuveruk.pdf
    • https://cdn.shopify.com/s/files/1/0432/6113/2968/files/62349563228.pdf
    • https://cdn.shopify.com/s/files/1/0430/3123/2674/files/72841123494.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bivunamu.pdf
    • https://cdn.shopify.com/s/files/1/0431/4716/5850/files/90051335173.pdf
    • https://cdn.shopify.com/s/files/1/0437/9626/7165/files/famusa.pdf
    • https://cdn.shopify.com/s/files/1/0435/4218/4095/files/xekugesezolatavawaputin.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_off000045e1.bin
0fca84fed7e4d12edf8fb3ad6f05441ebf0720ba27e861401343de196e620e3d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x45E1 4784 bytes
font_01_sfnt_off0000562e.bin
31e482305858527fc88111bdaef674cc1a907d9fb0c9f7c1e9e00db2915f3505		 pdf-font-stream PDF embedded font (sfnt) at offset 0x562E 9868 bytes

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