Malicious PDF — malware analysis report

Static analysis result for SHA-256 36fa1d2f47987aa4…

MALICIOUS

PDF

35.6 KB Created: 2020-03-15 14:02:35 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: fe10be2b6a7ce84a074b8dd377a4fa92 SHA-1: 003ab908804c10aeba5ed9b0fdd592d981de180c SHA-256: 36fa1d2f47987aa4eb18b03f3ffd92ef3fe7b40704fb825259f5366714a3a78c
62 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded external links, a technique often used for SEO manipulation or to redirect users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, indicating a potential link farm. The document body, though heavily obfuscated, contains fragments of URLs, reinforcing the link-based attack pattern. No scripts were extracted from this sample.

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://adsl-63-204-18-42.benefitplans.org/uploads/1/3/0/8/130873877/130873877.html#removable+mainsheet+track+system
    • http://mejorapamplona.com/uploads/1/3/0/5/130590698/812855.pdf
    • http://yerbalyfe.com/uploads/1/3/0/2/130288401/jasoludisilajemef.pdf
    • http://rentinspanishfork.com/uploads/1/3/0/7/130739369/mefonikobedutetofi.pdf
    • http://antoniogiulioloforese.com/uploads/1/3/0/4/130478484/bopevuboganedaf-bakulutiwebuk.pdf
    • http://www.tumpskyandmrssmall.com/uploads/1/3/0/4/130477890/45b733227fce9.pdf
    • http://shoutapp.online/uploads/1/3/0/6/130621952/monek-tinijuvaliwasig-xasiv-waxuwixi.pdf
    • http://carpetcleaningchattanoogatn.com/uploads/1/3/0/9/130969532/fapelanevev_tirun_dilevodopafozu.pdf
    • http://jzia.com/uploads/1/3/0/5/130588203/2752413.pdf
    • http://sweetthingbowtique.com/uploads/1/3/0/3/130379204/legitukopotu.pdf
    • http://sissytrainingschool.com/uploads/1/3/0/6/130621850/5651429.pdf
    • http://www.flexappealwf.com/uploads/1/3/0/3/130313089/parixis.pdf
    • http://nizkedane.com/uploads/1/3/0/5/130589014/sapene.pdf
    • http://bubblyfun.com/uploads/1/3/0/7/130775551/moxuxokisodemew.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_off000062ba.bin
63a6c41ae5bc3d0733d4fc4099e25bec8b5c14ffba67c4f910d6c06255e1431e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62BA 7936 bytes

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