Malicious PDF — malware analysis report

Static analysis result for SHA-256 585e96bb207632cd…

MALICIOUS

PDF

35.4 KB Created: 2020-04-10 14:47:20 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4169c386de427a7bbaab45e3211c0fc1 SHA-1: 2d41117bc1aac865fae4b711a2064c4aac6ade2f SHA-256: 585e96bb207632cdd6645a9590225848a4f4d7a84870fdecd1e5c77d22c353ec
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a heuristic firing for a link farm, indicating a large number of external links designed to manipulate search engine results or direct users to malicious sites. The document body text, though partially garbled, includes 'Adobe deneme s�r�m�' which translates to 'Adobe trial version', suggesting a lure. The presence of multiple external URLs, such as http://olympiagymandfitness1.com/uploads/1/3/0/5/130545573/130545573.html#adobe+deneme+s%C3%BCr%C3%BCm%C3%BC, reinforces the phishing or malware delivery attempt.

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://olympiagymandfitness1.com/uploads/1/3/0/5/130545573/130545573.html#adobe+deneme+s%C3%BCr%C3%BCm%C3%BC
    • http://robertjorgensen.com/uploads/1/3/1/6/131637030/9826106.pdf
    • http://firewoodhoustontx.com/uploads/1/3/1/3/131380469/mubusibet.pdf
    • http://greatoceanroadreviews.com/uploads/1/3/0/2/130288456/6133033.pdf
    • http://fallenspartan.com/uploads/1/3/1/4/131453454/4591546.pdf
    • http://benngun.com/uploads/1/3/0/6/130640116/gesemov_gevijolumijapi.pdf
    • http://windsweptphotography.net/uploads/1/3/1/4/131406013/1060863.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_off00005dee.bin
d788116a0fb2e4732adbbe7fa4be5bcf8fa0236495b064516dbe1dfd9619bd8d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DEE 9668 bytes

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