Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e80cd151ffe4877…

MALICIOUS

PDF

62.1 KB Created: 2020-03-26 11:56:02 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8b007f242d486aad6fd934f1b453d429 SHA-1: d120fca04276e584e3f3e98b2f98b600ea3dca73 SHA-256: 4e80cd151ffe48774dd815bfc131bc006b3c55e7f2199b10208d96cd855de7a8
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to similarly structured URLs on different domains. This behavior is indicative of a link farm or SEO manipulation tactic, potentially used to drive traffic to malicious sites or to obscure the true destination of the links. The document body, though heavily obfuscated, contains a reference to a nursing care plan, suggesting a lure to attract unsuspecting users.

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://marikacleaningservice.com/uploads/1/3/0/7/130775961/130775961.html#pancreatitis+nursing+care+plan
    • http://www.architects4christ.com/uploads/1/3/0/3/130323120/7b73d59.pdf
    • http://www.100menrgv.com/uploads/1/3/0/2/130271117/dukaxarosusozopase.pdf
    • http://scientificintl.com/uploads/1/3/0/5/130539188/muxomafuku-dogep-vajimejo.pdf
    • http://www.soulboyroy.com/uploads/1/3/0/7/130775753/megavifexag.pdf
    • http://slcltd.org/uploads/1/3/0/8/130874585/jojorimazige-wezefanun-puxuwuxal.pdf
    • http://golden-aquarium.com/uploads/1/3/0/5/130551836/b47e6cf75a.pdf
    • http://mowmylawnonline.com/uploads/1/3/0/2/130289722/5138e77704.pdf
    • http://ckfacials.com/uploads/1/3/0/3/130313748/jowuw.pdf
    • http://www.cancunmodels.com/uploads/1/3/0/8/130874495/02fa656fe654f50.pdf
    • http://awbphotography.ca/uploads/1/3/0/4/130435658/kewosu_suduzakevelaro.pdf
    • http://quenchlandscapes.com/uploads/1/3/0/8/130874591/f9b218.pdf
    • http://lhautomation.net/uploads/1/3/1/1/131163960/pogoniguweloxu_vekovena.pdf
    • http://aristocratshairandnail.com/uploads/1/3/0/5/130588443/4110a.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_off0000cb2e.bin
cf41331f5b1726d28529176f6276cc0f1ae22f09fb897403c32bf5a4c5912f68		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCB2E 8340 bytes

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