Malicious PDF — malware analysis report

Static analysis result for SHA-256 54037fd9772e0ffd…

MALICIOUS

PDF

66.3 KB Created: 2020-08-18 14:45:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 67113c8fd6cfec9e67a4e235c17e1d18 SHA-1: f91954c6cdf52e50985420308c825bccf33a5b9c SHA-256: 54037fd9772e0ffdb2d804109babf652c7799f6e9cd76fe54d7c6f9f6ed1cfc9
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=fixed+blade+knife+templates'. This indicates a social engineering attempt to direct the user to malicious content. The document also contains a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic. No scripts were extracted, limiting further analysis of payload delivery.

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=fixed+blade+knife+templates
    • http://files.manifestthetruth.com/uploads/1/3/0/7/130739119/8148715.pdf
    • http://files.kallers-studio.com/uploads/1/3/2/3/132302951/jajigupena_jiripufokop.pdf
    • http://files.northpointpsychology.com/uploads/1/3/1/4/131453194/4bd2ffe0e.pdf
    • http://files.ratusaupdhpe.com/uploads/1/3/1/3/131380688/lutituxiv-demuz-nusakido.pdf
    • https://cdn.shopify.com/s/files/1/0437/5032/6426/files/gcse_english_language_past_papers_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0430/1671/6437/files/fi_dilal_al_quran_arabic_download.pdf
    • https://cdn.shopify.com/s/files/1/0440/1224/1046/files/vupixuwufajonebavopibukaw.pdf
    • https://cdn.shopify.com/s/files/1/0429/7395/4204/files/38631964455.pdf
    • https://cdn.shopify.com/s/files/1/0429/5314/6517/files/rajozibokevojepepuxil.pdf
    • https://cdn.shopify.com/s/files/1/0431/3622/1341/files/welding_machine_specification.pdf
    • https://cdn.shopify.com/s/files/1/0437/7870/3511/files/kugofofizisogupijivum.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sakemiribukewud.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000af0a.bin
3ffe535b56d324290458e85350b33a723e8ea0bddbec2ac28cba37e55c406688		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAF0A 4996 bytes
font_01_sfnt_off0000bfe4.bin
b17236d8934403db0ef9b134d13276e30ac2f656fa35414589a75a48cb7c10ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBFE4 14848 bytes
font_02_sfnt_off0000ee1f.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEE1F 4324 bytes

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