Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe4e5764590b8b74…

MALICIOUS

PDF

37.4 KB Created: 2020-03-26 14:10:24 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8b7bde2a5dca9266c03f00dbcb55c64e SHA-1: 46231a16236aef4e8ce26bc127883d15226a3b5c SHA-256: fe4e5764590b8b740c5c6a0ecef207931fa6d056498da3969153a82ec7a74d2b
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links to other PDF files hosted on various domains, indicative of a link farm or SEO abuse. The primary URL points to a page with a title related to learning strategies, likely a lure. The embedded links are structured to appear as legitimate content but are likely part of a scheme to generate traffic or redirect users to malicious sites.

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://kilbeats.com/uploads/1/3/0/6/130605438/130605438.html#estrategias+de+aprendizaje+para+ni%C3%B1os+con+capacidades+especiales
    • http://somersetpestcontrol.com/uploads/1/3/0/8/130874205/2278701.pdf
    • http://cassiechancyillustration.com/uploads/1/3/0/5/130588977/3101266.pdf
    • http://baileycarsnorthamerica.com/uploads/1/3/0/6/130639784/c13c00257.pdf
    • http://pawprints.info/uploads/1/3/0/7/130740022/luvuj.pdf
    • http://hjeminteriors.com/uploads/1/3/0/5/130588239/semuxed_bezobopa.pdf
    • http://caagroupllc.net/uploads/1/3/0/4/130435596/nakapidex.pdf
    • http://www.articlesbyjudithstephens.judithstephens.com/uploads/1/3/0/4/130435833/korudebefuvosaf.pdf
    • http://farmersmarketdogfood.com/uploads/1/3/0/5/130550657/zosidipav.pdf
    • http://www.aventuras-spanishforchildren.com/uploads/1/3/0/7/130775118/0eb6fafa1.pdf
    • http://tammyframptonrealty.ca/uploads/1/3/0/2/130272918/c87b0d24ada.pdf
    • http://rebirthproductions.com/uploads/1/3/0/4/130489185/bomaze_tivarira_febaduviba_diviguw.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_off00006805.bin
90e87a266b19986418a41563f8c52895c73b9c0d924d58395739218971e657da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6805 7936 bytes

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