Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd72924c06c0ba69…

MALICIOUS

PDF

34.3 KB Created: 2020-04-21 14:39:48 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7443de7ec009fbc6840d0df4754ebbb8 SHA-1: 6b2cf13d08bf17aeae11b97d74879d1faa9efe43 SHA-256: fd72924c06c0ba690c191f6c5a7766cfc0d37cf1950b917d2c0c0c95fd13313a
62 Risk Score

Malware Insights

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

The PDF document contains numerous external links, a common tactic for SEO link farms and spam distribution. The document body, though partially corrupted, contains text related to 'Clamato juice nutritional information' and 'wkhtmltopdf', suggesting a lure to disguise the malicious intent. The presence of a PDF link farm heuristic indicates a high volume of outbound links, likely to facilitate spam or phishing campaigns.

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://sarawiseman.org/uploads/1/3/0/3/130313098/130313098.html#clamato+juice+nutritional+information
    • http://kentuckymountaintonic.com/uploads/1/3/1/4/131453808/fowepozizolowejet.pdf
    • http://thomasturkle.com/uploads/1/3/1/4/131406963/a275d882299acc.pdf
    • http://portlandhealthyprovisions.com/uploads/1/3/0/4/130489803/sisokezak.pdf
    • http://businesswritngmasters.com/uploads/1/3/0/5/130544448/92c59d1f6a5c.pdf
    • http://savvycommunications.org/uploads/1/3/0/8/130814205/tatasufepedun.pdf
    • http://barachan.store/uploads/1/3/0/3/130313340/boxunuxutafitawibi.pdf
    • http://venturacountymobilenotary.com/uploads/1/3/0/6/130621394/8cbe2c0bfa8a284.pdf
    • http://29violadrive.com/uploads/1/3/0/7/130738859/rowejibo.pdf
    • http://harvestleaders.org/uploads/1/3/0/6/130639071/doxuw.pdf
    • http://collaborativeimpulse.com/uploads/1/3/0/2/130289226/xubejozawavu.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f63.bin
3246266c0793ed7857ba9b46b297c3b74435a3c9c3a2caf52a4973834c6d34a8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F63 7604 bytes

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