Malicious PDF — malware analysis report

Static analysis result for SHA-256 96ee53974babcee2…

MALICIOUS

PDF

40.9 KB Created: 2020-08-25 13:58:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a2d0895fe422c9e4aa6691fa8e89286f SHA-1: 8314d0ebee5fd729e3a5b8e5dfaf4ec7e940093a SHA-256: 96ee53974babcee254294083e590300ce62e387d238ce3ca1f608885a78e547b
128 Risk Score

Malware Insights

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

The PDF file contains a link farm with 15 external PDF links, including a critical finding of a malicious redirector link to 'ttraff.ru'. The document body also contains urgency language, suggesting a lure to encourage clicks. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or exploits.

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.ru/pify?keyword=femara+clomid+metformin
    • http://fefes.newtonwonder.net/uploads/1/3/0/8/130814328/guwomoj.pdf
    • http://files.trinidadcf.org/uploads/1/3/0/7/130776673/delibizozomuxi.pdf
    • http://files.icollectablesonline.com/uploads/1/3/1/0/131071157/7001346.pdf
    • http://debetu.jpdentertainment.com/uploads/1/3/1/4/131453133/watovukexelibug.pdf
    • https://cdn.shopify.com/s/files/1/0429/5399/8487/files/autocad_3d_viewer.pdf
    • https://cdn.shopify.com/s/files/1/0429/5013/1878/files/beehive_management.pdf
    • https://cdn.shopify.com/s/files/1/0432/0192/1184/files/jutisetinifelijowurub.pdf
    • https://cdn.shopify.com/s/files/1/0431/7003/7924/files/cognitive_aptitude_test_sample_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0434/9778/3458/files/59013523414.pdf
    • https://cdn.shopify.com/s/files/1/0431/6351/7092/files/ethnographic_research_methods.pdf
    • https://cdn.shopify.com/s/files/1/0436/2466/1154/files/merolinegawogitujud.pdf
    • https://cdn.shopify.com/s/files/1/0437/1428/1625/files/history_of_all_prophets_in_islam.pdf
    • https://cdn.shopify.com/s/files/1/0430/9378/6791/files/libro_a_proposito_de_tu_boca.pdf
    • https://cdn.shopify.com/s/files/1/0427/6423/9014/files/bismillah_khan_biography.pdf
    • https://cdn.shopify.com/s/files/1/0431/6885/8280/files/89467272967.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_off00006225.bin
d7529de2fe0fc146c53ac086c1097c327272679e4719fb243b711fb92b6b7073		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6225 4944 bytes
font_01_sfnt_off000072db.bin
93300118bd9393b68f5c5fba686573bb552fa6cf9fb4e0bee2cc3262bb5d1c34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72DB 10608 bytes

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