Malicious PDF — malware analysis report

Static analysis result for SHA-256 38fd3ca1b19ddcff…

MALICIOUS

PDF

17.3 KB Created: 2020-03-18 11:25:20 +00:00 Authoring application: mPDF 5.7
MD5: 2e88e59b0b9e4d33df233c3cb824330b SHA-1: b4823f456243d0fde9f8e51330fae80483d652bb SHA-256: 38fd3ca1b19ddcffe76af2d83c0dc84630bfc5e0620bcb2617195b4d1595886d
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier as malicious. Static analysis revealed a large number of embedded URLs, specifically a link farm designed to redirect users to external PDF documents. The primary attack pattern involves luring users to these external sites, likely for further malicious activity such as credential harvesting or malware delivery. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9788

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://easckaolp.myhome.cx/1840847848840841845/Wander-Reiten-um-die-Welt-Oskar-reitet-in-Indien-Tibet-China-T-rkei-Nord-und-S-damerika-by-Manuel-Sauda-Sauda-Manuel.pdf
    • http://easckaolp.myhome.cx/1841841840841844848/Deutschlands-Insecten-Vol-4-K-fer-Mit-24-Von-Dem-Verfasser-Nach-Der-Natur-Gezeichnet-Und-in-Kupfer-Gestochenen-Illuminirten-Kupfertafeln-by-Jakob-Sturm.pdf
    • http://easckaolp.myhome.cx/9846847845844840/Conversations-with-Manuel-Castells-by-Manuel-Castells.pdf
    • http://easckaolp.myhome.cx/3849841846847847/Hot-Plastic-by-Peter-Craig.pdf
    • http://easckaolp.myhome.cx/2840841843846840/Living-Under-Plastic-by-Evelyn-Lau.pdf
    • http://easckaolp.myhome.cx/3840848840843845/Plastic-Man-Vol-1-On-the-Lam-by-Kyle-Baker.pdf
    • http://easckaolp.myhome.cx/3842842849849847/Plastic-by-Christopher-Fowler.pdf
    • http://easckaolp.myhome.cx/1844845843842849/Like-Plastic-by-David-L-Flusfeder.pdf
    • http://easckaolp.myhome.cx/3843847848843849/The-Plastic-Man-Archives-Vol-1-by-Jack-Cole.pdf
    • http://easckaolp.myhome.cx/1848842848841840/Better-Living-Through-Plastic-Explosives-by-Zsuzsi-Gartner.pdf
    • http://easckaolp.myhome.cx/2842841847845847/Better-Living-Through-Plastic-Explosives-by-Zsuzsi-Gartner.pdf
    • http://easckaolp.myhome.cx/9849846843849/Better-Living-Through-Plastic-Explosives-by-Zsuzsi-Gartner.pdf
    • http://easckaolp.myhome.cx/2847848843847/Lilly-s-Purple-Plastic-Purse-by-Kevin-Henkes.pdf
    • http://easckaolp.myhome.cx/1841844844849840840/Saccharin-And-Plastic-Band-Aids-by-Branch-Isole.pdf
    • http://easckaolp.myhome.cx/3844841845844841/Plastic-A-Toxic-Love-Story-by-Susan-Freinkel.pdf
    • http://easckaolp.myhome.cx/1841843842847845844/Dislocations-Mesoscale-Simulations-and-Plastic-Flow-by-Ladislas-Kubin.pdf
    • http://easckaolp.myhome.cx/1848842846848/The-Scoop-on-Breasts-A-Plastic-Surgeon-Busts-the-Myths-by-Ted-Eisenberg.pdf
    • http://easckaolp.myhome.cx/6843843845846848/Essentials-of-Plastic-Maxillofacial-and-Reconstructive-Surgery-by-Nicholas-G-Georgiade.pdf
    • http://easckaolp.myhome.cx/7840840849843849/The-Truth-About-Plastic-Surgery---Little-known-Facts-You-Need-to-Hear-About-by-Serge-Devant.pdf
    • http://easckaolp.myhome.cx/8847849842845844/Gravitation-as-a-Plastic-Distortion-of-the-Lorentz-Vacuum-by-Virginia-Velma-Fernandez.pdf
    • http://easckaolp.myhome.cx/184

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