Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e678ce7701419c6…

MALICIOUS

PDF

50.9 KB Created: 2020-04-09 23:39:45 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 40b24cbe13c1b2cec25a2b4cc52f851b SHA-1: 6a096cfd2254a0755fdf006e9ece7829bd54f170 SHA-256: 8e678ce7701419c68678da296e54647a562b4f47bf522e087c49f9c79f0bf517
62 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, a technique often used for SEO poisoning or to direct users to malicious websites. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, indicating a likely attempt to distribute traffic across multiple domains. The document body, though partially corrupted, contains a URL that aligns with this pattern.

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://next-edu.net/uploads/1/3/0/3/130379205/130379205.html#en+iyi+t%C3%BCrk%C3%A7e+anlat%C4%B1ml%C4%B1+ingilizce+gr
    • http://suvivorsisterspendant.com/uploads/1/3/0/6/130604338/5398be57.pdf
    • http://makaistrategem.com/uploads/1/3/0/9/130968985/budopavagule_tifadopojuga_mofudoz.pdf
    • http://shmactopus.com/uploads/1/3/0/6/130639240/fotikopudi.pdf
    • http://rashbiprayers.com/uploads/1/3/0/6/130605517/mufuxotoviwebu-jolerob-radupe-dobukano.pdf
    • http://caitclements.org/uploads/1/3/1/0/131070043/0c093586ab2.pdf
    • http://intercashpolska.pl/uploads/1/3/0/4/130483616/5800579.pdf
    • http://ingilizcekelime.com/
    • 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_off00008d09.bin
97cc4a67dee02b0ae132bf71b99b4ec15839b8dac7cead800b73f85a36ad2666		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D09 7368 bytes
font_01_sfnt_off0000a809.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA809 16036 bytes

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