Malicious PDF — malware analysis report

Static analysis result for SHA-256 3abcf95fb044711a…

MALICIOUS

PDF

50.0 KB Created: 2020-03-31 03:16:52 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 0aca6a31c211d3107c0df5f783efc3fc SHA-1: 1412554c93fc30e9b7d4b612a021ec5beeafb2a5 SHA-256: 3abcf95fb044711aa7afc1ae542a86fcc5b860b1197b5c8519ff029342ab4ec6
102 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to other PDF files, indicating a link farm for SEO purposes. The document body, though partially corrupted, contains text suggesting a lure for downloading game cheats, and a heuristic indicates a password-protected archive handoff. This suggests the PDF is a delivery mechanism for a subsequent payload, likely requiring user interaction to decrypt and execute.

Heuristics 4

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://mcatgent.org/uploads/1/3/0/2/130271226/130271226.html#download+gta+san+andreas+cheats+pc+full+list
    • http://theroyalpriesthoodblog.com/uploads/1/3/0/7/130739131/5284678.pdf
    • http://dancefitnesswithlaura.com/uploads/1/3/0/3/130323888/2102383.pdf
    • http://wavideos.xyz/uploads/1/3/1/0/131070246/9d52e59a55d07.pdf
    • http://ddknitz.com/uploads/1/3/0/8/130873868/6114472.pdf
    • http://daughterredeemed.org/uploads/1/3/0/9/130969811/70cb32b086.pdf
    • http://psi-japan.design/uploads/1/3/0/2/130270982/7882815.pdf
    • http://grammasglasses.com/uploads/1/3/1/4/131407357/ca51fe143e3b2.pdf
    • http://hugosandall.com/uploads/1/3/0/7/130775606/7109725.pdf
    • http://wise-team.com/uploads/1/3/0/5/130539046/nenewolusekeb.pdf
    • http://amredco.com/uploads/1/3/0/4/130477372/milov.pdf
    • http://kman-turbo.de/uploads/1/3/0/7/130775346/270310.pdf
    • http://sweetteyscatering.com/uploads/1/3/0/8/130814311/jugezixifedibube.pdf
    • http://thehammersolutions.net/uploads/1/3/0/4/130436094/d08502e746c.pdf
    • http://zml-learntoachieve.org/uploads/1/3/0/4/130488295/1166296.pdf
    • http://realhomepartnersinc.com/uploads/1/3/0/8/130874123/4603304.pdf
    • http://harrywhophotoblog.com/uploads/1/3/1/4/131407377/8610893.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_off000094fd.bin
4cd9d8abca18c60b6cf3f74b19f5ca5826867aeeb142589ae509141a533eb086		 pdf-font-stream PDF embedded font (sfnt) at offset 0x94FD 9548 bytes

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