Malicious PDF — malware analysis report

Static analysis result for SHA-256 b74433df5d55dc99…

MALICIOUS

PDF

40.2 KB Created: 2020-03-09 07:08:25 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 3db5fc2b7accffa9933db0eaa5fdd782 SHA-1: 8530ef4d805a19407ce6ce86875af14c4605214f SHA-256: b74433df5d55dc997d39115e00f5d7b94d378ea6542c0d97341a7485d4528945
122 Risk Score

Malware Insights

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

This PDF file was detected as a dropper by ClamAV. It contains a large number of external links, forming a link farm, with the primary purpose of redirecting users to potentially malicious content hosted on various domains. The embedded URLs suggest a tactic to obscure the final destination and potentially evade detection. The file's structure and the presence of numerous external links strongly indicate a malicious intent to lead users to harmful resources.

Heuristics 4

  • 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.
  • ClamAV: Pdf.Dropper.Agent-8941482-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8941482-0
  • 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://provenanswersgroup.com/uploads/1/3/0/8/130814430/130814430.html#the+animator%E2%80%99s+survival+kit+%2F+richard+williams
    • http://nomadicneuron.net/uploads/1/3/0/5/130539099/gukamorefegetuv.pdf
    • http://qecs.us/uploads/1/3/0/7/130739368/lusemabar.pdf
    • http://erosrodriguez.com/uploads/1/3/0/2/130270953/butenugisolevizedo.pdf
    • http://powertospeaknaked.com/uploads/1/3/0/7/130775704/f4338271f.pdf
    • http://christellemmen.com/uploads/1/3/0/9/130969844/2325111.pdf
    • http://thebamboopouch.co/uploads/1/3/0/6/130603944/8257363.pdf
    • http://checkeredflagscion.com/uploads/1/3/0/4/130476074/224618.pdf
    • http://jennifer-woods.co.uk/uploads/1/3/0/5/130551166/5f93c2f6bbb.pdf
    • http://www.poulsborvspecials.com/uploads/1/3/0/5/130550938/tolavomepumud.pdf
    • http://42abb.bpmtc.com/uploads/1/3/0/5/130539734/wegimumapugo_melerafata.pdf
    • http://www.floridaballoonsinuplasty.com/uploads/1/3/0/6/130639662/mofojinof.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_off00006790.bin
b189a21ac72041231ab820858c79e33a4423ee1c4464dd7ceceb130eb1dfe2de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6790 8260 bytes
font_01_sfnt_off000087aa.bin
78116880e9c902c31767bfa12a9ff84ada309181a52ab1aa29cdf6fbfe115b45		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87AA 2600 bytes

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