Malicious PDF — malware analysis report

Static analysis result for SHA-256 297639229babcdf0…

MALICIOUS

PDF

42.6 KB Created: 2020-08-05 05:19:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: af925d783b9aca58b88d2ec6ecd6abd6 SHA-1: 5bec62b8413d3f0dc6199e4ffefb72c6b2e7315b SHA-256: 297639229babcdf046e84c37088bb3b476c696e76af1787cdcbaf16f08cb9a54
150 Risk Score

Malware Insights

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

The PDF contains numerous links, including one pointing to a known malicious redirector at ttraff.com. The document body, though partially garbled, suggests a lure related to a 'cgeit review manual 7th edition pdf'. The presence of a link farm and a critical heuristic firing for a malicious redirector strongly indicates this PDF is designed to lead users to malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=cgeit+review+manual+7th+edition+pdf
    • http://files.terracepipesanddrums.ca/uploads/1/3/0/9/130969984/piwefifegetote.pdf
    • http://files.urbansoulalchemy.com/uploads/1/3/1/4/131407855/firowapuxipegam-biwexugovo.pdf
    • http://files.transatlanticconcepts.com/uploads/1/3/1/4/131438490/lukagudumizusamol.pdf
    • http://files.tiutimes.com/uploads/1/3/0/7/130776118/1495598.pdf
    • https://cdn.shopify.com/s/files/1/0440/6591/5032/files/lozovetikagibelafisipitew.pdf
    • https://cdn.shopify.com/s/files/1/0431/1236/6231/files/41078392449.pdf
    • https://cdn.shopify.com/s/files/1/0430/2818/5239/files/labirisefewekiwolixo.pdf
    • https://cdn.shopify.com/s/files/1/0428/1332/5471/files/gavazovijisawovix.pdf
    • https://cdn.shopify.com/s/files/1/0434/6295/1062/files/pujojosuxese.pdf
    • https://cdn.shopify.com/s/files/1/0432/8275/9836/files/sobipebalililumupo.pdf
    • https://cdn.shopify.com/s/files/1/0435/8576/5535/files/nanumigix.pdf
    • https://cdn.shopify.com/s/files/1/0430/4814/0949/files/xazewotazade.pdf
    • https://cdn.shopify.com/s/files/1/0432/2174/5825/files/duxuve.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/40035930655.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_off00006690.bin
bb20d95e2d213ac107b5d959ad49953a64164e28c311a8a08a76ad24c1218022		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6690 5412 bytes
font_01_sfnt_off000078e5.bin
e131f3fa4236870fb5fabd0ae9255b7b9c1ee63dc120dec97a39d39ad51446e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78E5 10932 bytes

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