Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5dd29714efe89bb…

MALICIOUS

PDF

45.7 KB Created: 2020-04-09 04:02:20 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 53acfeadc15bd8d66b5f7a95ddc546b1 SHA-1: 53f7967fbf8e313ea43f1defb5d4f23ebe33f644 SHA-256: f5dd29714efe89bb0d0327008a4de03d48c7e51ca72138834df8d22bb55c4940
62 Risk Score

Malware Insights

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

The PDF contains a large number of external links to other PDF files hosted on various domains, a technique often used for SEO manipulation or to distribute malicious content. The heuristic 'PDF_SEO_LINK_FARM' strongly indicates this behavior. The embedded URLs point to a network of sites that appear to be part of a link farm, suggesting a traffic redirection or content distribution scheme rather than a direct exploit.

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://gmchamberpatrons.com/uploads/1/3/0/4/130476619/130476619.html#que+es+cretib
    • http://princetonkychamber.org/uploads/1/3/0/5/130588518/2730226.pdf
    • http://tasteofwestpoint.com/uploads/1/3/0/7/130775884/2867219.pdf
    • http://ebe-thebook.com/uploads/1/3/1/3/131379340/vamofeji_gokoku_lumoni.pdf
    • http://remfive.com/uploads/1/3/0/2/130288626/kigibijivetuj-novewufujurol.pdf
    • http://peachstatediesel.com/uploads/1/3/0/7/130739024/6422134.pdf
    • http://animals-pro.com/uploads/1/3/0/8/130814483/satunox_pokebenefe_detetudi_xepivoxujut.pdf
    • http://livearbonne.com/uploads/1/3/0/7/130776249/efa45c5.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006949.bin
54edc5a99ae821561ebc9f9d4c4c7f4e4df4cc4c061df9b40fbefac271710b3d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6949 9180 bytes
font_01_sfnt_off00008a16.bin
e91619dfd4c72a85464d95ef1ba4e67df13020651c42071bafbe521a61d9f7fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8A16 2652 bytes
font_02_sfnt_off0000937d.bin
779aa567746046747dac965df7fdfb06ff632674a0a99ce247a327bf89f0fa63		 pdf-font-stream PDF embedded font (sfnt) at offset 0x937D 16036 bytes

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