Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ca537443be12fb2…

MALICIOUS

PDF

49.9 KB Created: 2020-04-08 22:08:22 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 799f5559711787971fcd00b8bb19bc08 SHA-1: fc379a949f0e47fa371c2f0ed7090bed6a479a61 SHA-256: 7ca537443be12fb221fdded1dd41dba96bb1e3afdc83848ce0eb900a14192947
62 Risk Score

Malware Insights

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

The PDF file, generated by wkhtmltopdf, contains a lure related to 'Escape from Tarkov' armor charts. It exhibits a 'PDF_SEO_LINK_FARM' heuristic, indicating the presence of numerous external links to other PDF files hosted on various domains. These links are likely intended to manipulate search engine rankings or redirect users to malicious content. No scripts were extracted from this sample.

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://wellwithacupuncture.com/uploads/1/3/0/7/130739446/130739446.html#escape+from+tarkov+armor+chart
    • http://benotary.net/uploads/1/3/0/9/130969278/7180002.pdf
    • http://elainelittau.com/uploads/1/3/0/9/130969637/tirupilasawefusato.pdf
    • http://throughadream.com/uploads/1/3/0/7/130739567/4936913.pdf
    • http://bigbonedfitness.com/uploads/1/3/0/8/130874509/buxowob.pdf
    • http://technologiespawalnicze.pl/uploads/1/3/0/7/130739529/0f4b01892477396.pdf
    • http://pocketstopit.com/uploads/1/3/0/6/130604500/1777069.pdf
    • http://bigbonedfitness.com/uploads/1/3/0/8/
    • 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_off00009b2a.bin
35cabfe3b786b9e9bcb40959443b86acab1f664989102575c84ba08d69423da3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9B2A 8400 bytes

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