Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4bc41d8bae72396…

MALICIOUS

PDF

38.9 KB Created: 2020-04-04 15:32:32 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 951cfaba086dccbb85c55b4c09195b3f SHA-1: 7d28e3e76e94aaa0ad5c6d0d06bd572997a85710 SHA-256: c4bc41d8bae72396555e451cb31410e723e1b60fc17d994d4ce12e07644a3bf4
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links to various domains, many of which appear to be part of a link farm designed for SEO manipulation. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, with 'strandsofloveeee.com' being a dominant host. The embedded document body text, though partially corrupted, contains a URL that also points to a similar structure. This suggests the primary purpose is to redirect users to potentially malicious content hosted across these numerous domains.

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://reikidc.com/uploads/1/3/0/6/130639246/130639246.html#watch+muhan+company+eng+sub
    • http://strandsofloveeee.com/uploads/1/3/0/2/130273913/2161456.pdf
    • http://mybookwish.org/uploads/1/3/0/2/130272509/karaju.pdf
    • http://mandalagoddess.shop/uploads/1/3/0/6/130605515/9895073.pdf
    • http://iguazugrandhotel.com/uploads/1/3/0/2/130273899/1815182.pdf
    • http://phoenixfutbol.com/uploads/1/3/0/6/130603825/mokegotax.pdf
    • http://backtogreece.com/uploads/1/3/0/3/130313114/7d541a8b48.pdf
    • http://wildbiomeskinsense.com/uploads/1/3/0/3/130323329/nedemiwopuxop.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_off0000602e.bin
93e92dd7d68f308de3de59e751b12a9a99675e3bc86ebfb38b66401cfaa2ac79		 pdf-font-stream PDF embedded font (sfnt) at offset 0x602E 7936 bytes
font_01_sfnt_off00007f26.bin
9766b5402b569433e9f6f20690a97f9d07ac418b7b42af7962069406f388ceac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F26 4816 bytes

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