Malicious PDF — malware analysis report

Static analysis result for SHA-256 d19adbd6cd0f9f7c…

MALICIOUS

PDF

38.8 KB Created: 2020-04-09 21:47:00 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8c64f501b8bc0f9c116e3586fd3a4197 SHA-1: 31d0568a863bf39506287208e9a5389d5871334d SHA-256: d19adbd6cd0f9f7c98a6198ce9b1db02c3f6aec5a5741c913eae32d3af995b68
62 Risk Score

Malware Insights

MITRE ATT&CK
T1598 Gather Victim Identity Information T1204 Malicious Link

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The embedded document body text also contains URLs, reinforcing the link-farming behavior. This suggests the primary purpose is to direct users to external resources, potentially for SEO manipulation or to host malicious payloads.

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://rockandrowel.com/uploads/1/3/1/3/131381044/131381044.html#fundamentals+of+operative+dentistry+pdf
    • http://getyourselfoutofpain.info/uploads/1/3/1/3/131379384/majubufeke.pdf
    • http://diaetguru.net/uploads/1/3/1/3/131383562/5799772.pdf
    • http://luran.es/uploads/1/3/1/4/131408256/6623296.pdf
    • http://brentfosterattorney.com/uploads/1/3/0/4/130435569/dojatepalimiwerutug.pdf
    • http://altonahypnotherapy.com/uploads/1/3/0/2/130272385/nesalizopedujor.pdf
    • http://inspiredrenovations.org/uploads/1/3/0/2/130291492/kobejixozobas_nodolami_xelerap_migat.pdf
    • http://tdrofflorida.com/uploads/1/3/1/4/131437770/56b1e3c.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_off000064f4.bin
05db8c93c35643951260019fe95e674780a0dad9438da1ec29bc9acef4be8636		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64F4 8472 bytes
font_01_sfnt_off000085b4.bin
83459e82cebe561b9e65dda6a09953c9e35f75e5df0fa62a624e1833cc5b8086		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85B4 1708 bytes

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