Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ca1697ce73e3d93…

MALICIOUS

PDF

18.1 KB Created: 2020-02-13 19:04:19 +00:00 Authoring application: mPDF 5.7
MD5: 9401698787f3c57321d2fbc0937ce356 SHA-1: 6ac7dfab611b173d86ce15e8732446ae0f5865f1 SHA-256: 5ca1697ce73e3d9335c6526e5fef96fc0515c17229f81c6b212f85041292a005
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains a large number of embedded links pointing to external PDF documents, a technique often used for SEO spam or to distribute malicious content. The ML classifier also flagged this PDF as malicious with high confidence. No scripts were extracted, but the embedded links suggest a T1059.007 (JavaScript) technique might be involved in their generation or exploitation within the PDF viewer, and the overall delivery mechanism is likely T1566.001 (Spearphishing Attachment).

Machine Learning

  • Nyx PDF Classifier malicious score 0.9807

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/4847845847841847/Roth-Hell-Squad-5-by-Anna-Hackett.pdf
    • http://easckaolp.myhome.cx/4847845847849849/Holmes-Hell-Squad-8-by-Anna-Hackett.pdf
    • http://easckaolp.myhome.cx/4847845846846846/Shaw-Hell-Squad-7-by-Anna-Hackett.pdf
    • http://easckaolp.myhome.cx/1843841848849846/Marcus-Hell-Squad-1-by-Anna-Hackett.pdf
    • http://easckaolp.myhome.cx/4847845847842842/Gabe-Hell-Squad-3-by-Anna-Hackett.pdf
    • http://easckaolp.myhome.cx/4845844840841846/Hero-Galactic-Gladiators-3-by-Anna-Hackett.pdf
    • http://easckaolp.myhome.cx/3840842842844846/Guardian-Galactic-Gladiators-9-by-Anna-Hackett.pdf
    • http://easckaolp.myhome.cx/3840842842845842/Champion-Galactic-Gladiators-5-by-Anna-Hackett.pdf
    • http://easckaolp.myhome.cx/3840842842845845/Rogue-Galactic-Gladiators-8-by-Anna-Hackett.pdf
    • http://easckaolp.myhome.cx/4843843847840843/In-the-Devil-s-Nebula-The-Phoenix-Adventures-2-by-Anna-Hackett.pdf
    • http://easckaolp.myhome.cx/2840846848843844/Undiscovered-Treasure-Hunter-Security-1-by-Anna-Hackett.pdf
    • http://easckaolp.myhome.cx/4844848845843840/Beneath-a-Trojan-Moon-The-Phoenix-Adventures-3-5-by-Anna-Hackett.pdf
    • http://easckaolp.myhome.cx/2848845842848842/Hell-s-Diva-by-Anna-J-.pdf
    • http://easckaolp.myhome.cx/1842844846845848/Hell-s-On-Earth-East-Lake-Series-2-by-Anna-Andrews.pdf
    • http://easckaolp.myhome.cx/1840845844847849849/Comics-Squad-2-Lunch-Comics-Squad-2-by-Matthew-Holm.pdf
    • http://easckaolp.myhome.cx/9841848844844845/Joseph-Roth---Gesammelte-Werke-Romane-Erz-hlungen-Journalistische-Schriften-mehr-als-30-Titel-in-einem-E-Book---Radetzkymarsch-Hiob-Die-Kapuzinergruft-Trinker-Das-falsche-Gewic-by-Joseph-Roth.pdf
    • http://easckaolp.myhome.cx/6849844849844848/Philip-Roth-Reads-from-His-Zuckerman-Bound-by-Philip-Roth.pdf
    • http://easckaolp.myhome.cx/1849841841849840/Beck-Mongolian-Chop-Squad-Volume-1-Beck-Mongolian-Chop-Squad-1-by-Harold-Sakuishi.pdf
    • http://easckaolp.myhome.cx/4842842848840846/A-Bag-of-Secrets-by-Richard-A-Hackett-Jr-.pdf
    • http://easckaolp.myhome.cx/1840845840843849847/From-Hell-Dance-of-the-Gull-Catchers-From-Hell-11-by-Alan-Moore.pdf

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