Malicious PDF — malware analysis report

Static analysis result for SHA-256 cf3b2a0090c749e1…

MALICIOUS

PDF

13.9 KB Created: 2020-03-14 01:52:21 +00:00 Authoring application: mPDF 5.7
MD5: e5862497d7722482ee249aebe0c23b9c SHA-1: 03d504788592b9421d848ca7daea5beca6ae435d SHA-256: cf3b2a0090c749e11ec342e02a76af86ad912192cb6b4bc14b7dc8f5172c97c5
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a large number of embedded URLs pointing to external PDF files, a technique often used for SEO poisoning or to redirect users to malicious content. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, but the extensive link farm suggests a social engineering or redirection-based attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9102

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://weisncio.myhome.cx/9620628623629628/Larry-Fink-on-Composition-and-Improvisation-The-Photography-Workshop-Series-by-Larry-Fink.pdf
    • http://weisncio.myhome.cx/9620628625625627/Social-Graces-Photographs-by-Larry-Fink-by-Max-Kozloff.pdf
    • http://weisncio.myhome.cx/8629621625625629/Larry-McReynolds-My-Life-from-Pit-Road-to-the-Broadcast-Booth-by-Larry-Mcreynolds.pdf
    • http://weisncio.myhome.cx/4620629629627620/The-Journey-by-Ida-Fink.pdf
    • http://weisncio.myhome.cx/6623628620628627/Ivanhoe-by-Joanne-Fink.pdf
    • http://weisncio.myhome.cx/9620628625626620/Traces-Stories-by-Ida-Fink.pdf
    • http://weisncio.myhome.cx/9620628625626627/Barton-Fink-by-Frederic-P-Miller.pdf
    • http://weisncio.myhome.cx/9620628623626625/The-Next-Great-Paulie-Fink-by-Ali-Benjamin.pdf
    • http://weisncio.myhome.cx/9621623625/Alice-Isn-t-Dead-by-Joseph-Fink.pdf
    • http://weisncio.myhome.cx/7624627625621627/Who-s-who-in-der-antiken-Mythologie-by-Gerhard-Fink.pdf
    • http://weisncio.myhome.cx/9620628623625628/The-Adventures-of-Homer-Fink-by-Sidney-Offit.pdf
    • http://weisncio.myhome.cx/9620628625626625/Mike-Fink-Best-of-the-Keelboatmen-by-Harold-W-Felton.pdf
    • http://weisncio.myhome.cx/6628627627627626/Bienvenue-Night-Vale-by-Joseph-Fink.pdf
    • http://weisncio.myhome.cx/3627624624624624/We-Can-Fix-It-A-Time-Travel-Memoir-by-Jess-Fink.pdf
    • http://weisncio.myhome.cx/9620628625626623/The-Constitution-of-the-United-States-of-America-by-Sam-Fink.pdf
    • http://weisncio.myhome.cx/9623629625627627/Zeitreise-in-die-Vergangenheit-Abenteuer-bei-den-Sauriern-by-Florian-Fink.pdf
    • http://weisncio.myhome.cx/9620628625626628/Crisis-Management-Planning-for-the-Inevitable-by-Steven-Fink.pdf
    • http://weisncio.myhome.cx/4626620622620622/The-Man-s-Book-The-Essential-Guide-for-the-Modern-Man-by-Thomas-Fink.pdf
    • http://weisncio.myhome.cx/9620628624620622/The-85-ways-to-tie-a-tie-the-science-and-aesthetics-of-tie-knots-by-Thomas-Fink.pdf
    • http://weisncio.myhome.cx/8628623627622620/EROTIK-Fick-mich-den-ganzen-Tag-2-Erotischegeschichte-by-Didi-Fink.pdf
    • http://weisncio.myhome

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