Malicious PDF — malware analysis report

Static analysis result for SHA-256 0958f7241f0978b6…

MALICIOUS

PDF

18.3 KB Created: 2020-03-16 04:47:36 +00:00 Authoring application: mPDF 5.7
MD5: 397692bd03077cbae366f36ebca6ef1b SHA-1: c4023e404463b066954d2dbf602e0165bd2cc825 SHA-256: 0958f7241f0978b6d66ad27d3614bfa64785048cd27c4db858e9b2193801238f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO manipulation or to distribute further malicious content. The ML classifier also strongly indicated maliciousness. No scripts were extracted, and the document body was heavily obfuscated, preventing a more detailed analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9912

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://eascasas.myhome.cx/4aa5aa7aa2aa0aa8/Imbalance-Star-Trek-The-Next-Generation-22-by-V-E-Mitchell.pdf
    • http://eascasas.myhome.cx/8aa6aa2aa7aa3aa8/Star-Trek-Die-n-chste-Generation---Masken-Star-Trek-The-Next-Generation-7-by-John-Vornholt.pdf
    • http://eascasas.myhome.cx/3aa1aa8aa3aa5aa8/Star-Trek-The-Next-Generation-Cats-by-Jenny-Parks.pdf
    • http://eascasas.myhome.cx/4aa5aa7aa1aa2aa7/Grounded-Star-Trek-The-Next-Generation-25-by-David-Bischoff.pdf
    • http://eascasas.myhome.cx/9aa0aa9aa4aa3aa3/Here-There-Be-Dragons-Star-Trek-The-Next-Generation-28-by-John-Peel.pdf
    • http://eascasas.myhome.cx/3aa6aa1aa6aa9aa2/Dragon-s-Honor-Star-Trek-The-Next-Generation-38-by-Kij-Johnson.pdf
    • http://eascasas.myhome.cx/1aa0aa9aa6aa9aa7aa4/Star-Trek-The-Next-Generation-On-Board-the-U-S-S-Enterprise-by-Michael-Okuda.pdf
    • http://eascasas.myhome.cx/9aa0aa0aa1aa2aa1/Mehr-als-die-Summe-Star-Trek-The-Next-Generation-5-by-Christopher-L-Bennett.pdf
    • http://eascasas.myhome.cx/9aa0aa0aa1aa6aa6/Star-Trek---The-Next-Generation-12-Jagd-by-John-Jackson-Miller.pdf
    • http://eascasas.myhome.cx/3aa2aa3aa8aa9aa6/Star-Trek-The-Next-Generation-Doctor-Who-Assimilation2-Volume-1-by-Scott-Tipton.pdf
    • http://eascasas.myhome.cx/9aa8aa0aa9aa2aa6/Star-Trek---The-Next-Generation-10-Kalte-Berechnung---Diabolus-ex-Machina-by-David-Mack.pdf
    • http://eascasas.myhome.cx/9aa8aa0aa9aa2aa7/Star-Trek---The-Next-Generation-08-Kalte-Berechnung---Die-Best-ndigkeit-der-Erinnerung-by-David-Mack.pdf
    • http://eascasas.myhome.cx/1aa0aa9aa6aa7aa6aa0/Star-Trek-The-Next-Generation-On-Board-the-U-S-S-Enterprise-Be-Transported-to-the-Final-Frontier-with-a-Breathtaking-3D-Tour-by-Denise-Okuda.pdf
    • http://eascasas.myhome.cx/3aa6aa3aa0aa4aa5/Star-Trek-III-The-Search-for-Spock-Star-Trek-TOS-Movie-Novelizations-3-by-Vonda-N-McIntyre.pdf
    • http://eascasas.myhome.cx/3aa8aa0aa7aa8aa6/Star-Trek-The-Motion-Picture-Star-Trek-The-Original-Series-by-Gene-Roddenberry.pdf
    • http://eascasas.myhome.cx/3aa8aa1aa2aa8aa7/The-Best-of-Trek-From-the-Magazine-for-Star-Trek-Fans-Best-of-Trek-1-by-Walter-Irwin.pdf
    • http://eascasas.myhome.cx/1aa0aa2aa1aa5aa7aa5/Star-Trek-Log-One-Star-Trek-Logs-1-by-Alan-Dean-Foster.pdf
    • http://eascasas.myhome.cx/7aa7aa0aa2aa4aa1/Star-Trek-The-New-Voyages-2-Star-Trek-Adventures-6-by-Sondra-Marshak.pdf
    • http://eascasas.myhome.cx/1aa0aa2aa1aa8aa1aa0/Star-Trek-Log-Seven-Star-Trek-Logs-7-by-Alan-Dean-Foster.pdf
    • http://eascasas.myhome.cx/1aa0aa2aa1aa7aa3aa2/Star-Trek-Log-Five-Star-Trek-Logs-5-by-Alan-Dean-Foster.pdf