Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e295e14b647d465…

MALICIOUS

PDF

43.6 KB Created: 2020-03-09 06:09:23 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7efeb1edafcd5559e9701705940fa48e SHA-1: c64031aadf20e110620c0c6045c8e883f09e4655 SHA-256: 1e295e14b647d4651251d5c5d4f7f29072714088e0b6c612773c501c29b5d284
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links to other PDF files hosted on various domains. This pattern is indicative of a link farm or a distribution network designed to obscure the ultimate malicious payload. The presence of the 'PDF_SEO_LINK_FARM' heuristic firing strongly supports this assessment. No scripts were extracted, and the document body is heavily obfuscated, making it difficult to determine the exact nature of the final payload.

Heuristics 3

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://gq0j8.bpmtc.com/uploads/1/3/0/6/130604918/130604918.html#avengers+logo+full+hd+images
    • http://www.ashleybae.com/uploads/1/3/0/4/130476162/e07167d00566d6.pdf
    • http://scahistoricalsociety.com/uploads/1/3/0/7/130776542/4013566.pdf
    • http://learn-live-grow.barrettsblog.net/uploads/1/3/0/6/130620693/73b8eb26d38.pdf
    • http://rockfishdivers.com/uploads/1/3/0/6/130621470/fe2d9a26.pdf
    • http://miralunacraniosacral.com/uploads/1/3/0/5/130588708/wikoned.pdf
    • http://www.liveyourdream.ru/uploads/1/3/0/6/130620931/buvofejusibojibawaku.pdf
    • http://bottlecan.biz/uploads/1/3/0/7/130775803/lunepajujeparo.pdf
    • http://hostmaster.ubonpartners.com/uploads/1/3/0/7/130739227/8ecf55f01e4f8.pdf
    • http://strategicanswer.com/uploads/1/3/0/8/130814682/3193322.pdf
    • http://messinger-systems.com/uploads/1/3/0/6/130604630/3adf5.pdf
    • http://shelleyortner.com/uploads/1/3/0/7/130775832/2d1f97bcac919d.pdf
    • http://casemedicine.org/uploads/1/3/0/6/130639733/7806527.pdf
    • http://trfmontpelier.com/uploads/1/3/0/6/130621164/5693418.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_off00006a93.bin
98fa1b98b982e802451854db41c64d1ec36ceccb6b300586fdbc5d320828c018		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A93 8392 bytes
font_01_sfnt_off00008b22.bin
559dd9b85b110fca6602cd1e4ac3fa981b9684ef6491f63fc2cac816d372da27		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B22 16340 bytes

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