Malicious PDF — malware analysis report

Static analysis result for SHA-256 b646a012ee727666…

MALICIOUS

PDF

14.1 KB Created: 2019-04-29 23:28:43 +01:00 Authoring application: mPDF 5.7
MD5: 3c9fffc3859da72109a6644785b0fb6c SHA-1: f3ecc2be17f6dd13ffa6fe40b8b4bc4ac86dde96 SHA-256: b646a012ee72766604747daf43cd8ca0aecffcb98648ab9dd7a5d8c7dac5853f
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file exhibits a critical heuristic firing for a link farm, containing numerous embedded URLs. These URLs point to external PDF documents hosted on 'loaminoo.linkpc.net'. While the listed URLs are marked as confirmed benign, the sheer volume and structure suggest a potential for SEO manipulation or as a lure for users to download further malicious content. No scripts were extracted from this sample, limiting the ability to determine a more specific attack pattern or family.

Heuristics 2

  • 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.
  • 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://loaminoo.linkpc.net/3097097092093097/Writer-of-the-Purple-Rage-by-Joe-R-Lansdale.pdf
    • http://loaminoo.linkpc.net/8092093092099098/Blood-Dance-The-Lost-Lansdale-3-by-Joe-R-Lansdale.pdf
    • http://loaminoo.linkpc.net/2092097094098090/Joe-R-Lansdale-s-The-Drive-In-by-Joe-R-Lansdale.pdf
    • http://loaminoo.linkpc.net/3091096093090/Writers-of-the-Purple-Sage-Purple-Sage-Mystery-1-by-Barbara-Burnett-Smith.pdf
    • http://loaminoo.linkpc.net/4095099097097099/Love-Poems-by-Purple-Ronnie-by-Purple-Ronnie.pdf
    • http://loaminoo.linkpc.net/2091097095093095/Gavelgavel-A-Collection-of-Short-Stories-by-the-Camarillo-Writer-s-Club-by-Camarillo-Writer-39-s-Club.pdf
    • http://loaminoo.linkpc.net/8092093093099095/Prisoner-489-by-Joe-R-Lansdale.pdf
    • http://loaminoo.linkpc.net/6094096097094096/Dead-Aim-by-Joe-R-Lansdale.pdf
    • http://loaminoo.linkpc.net/8092093093095096/Hyenas-by-Joe-R-Lansdale.pdf
    • http://loaminoo.linkpc.net/8092093093099097/Hot-in-December-by-Joe-R-Lansdale.pdf
    • http://loaminoo.linkpc.net/3097098092095096/The-Nightrunners-by-Joe-R-Lansdale.pdf
    • http://loaminoo.linkpc.net/8092093094092095/The-God-of-the-Razor-by-Joe-R-Lansdale.pdf
    • http://loaminoo.linkpc.net/3096092097094095/Act-of-Love-by-Joe-R-Lansdale.pdf
    • http://loaminoo.linkpc.net/4098091094090090/The-Complete-Drive-In-by-Joe-R-Lansdale.pdf
    • http://loaminoo.linkpc.net/2096098093097099/Lost-Echoes-by-Joe-R-Lansdale.pdf
    • http://loaminoo.linkpc.net/2094096094095098/Cold-in-July-by-Joe-R-Lansdale.pdf
    • http://loaminoo.linkpc.net/2096094094098096/Sunset-and-Sawdust-by-Joe-R-Lansdale.pdf
    • http://loaminoo.linkpc.net/8092093094093094/Waltz-of-Shadows-by-Joe-R-Lansdale.pdf
    • http://loaminoo.linkpc.net/2091095095099097/The-Complete-Drive-In-by-Joe-R-Lansdale.pdf
    • http://loaminoo.linkpc.net/8092093094099094/Joe-R-Lansdale-an-Interview-by-Roberto-Bommarito.pdf
    • http://loaminoo.linkpc.net/3096092097094095/Act-of-Lo

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