Malicious PDF — malware analysis report

Static analysis result for SHA-256 b76c110934e9f3ea…

MALICIOUS

PDF

20.0 KB Created: 2020-02-14 22:36:42 +00:00 Authoring application: mPDF 5.7
MD5: c8edc05217012cd6ea9828545ece5fc9 SHA-1: 48f0afc35f8c9f0d8002ab464a3470d7c8ba2fbd SHA-256: b76c110934e9f3eaeca5ca2e96ec7786cda4c0aff57ea30193589cc6ab65ddd4
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, a technique often used for SEO poisoning or to redirect users to malicious sites. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, but the extensive link farm suggests a delivery mechanism for further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9780

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://calistazz.myhome.cx/8867861869860865/Life-of-Wallenstein---Duke-of-Friedland-by-John-Mitchell.pdf
    • http://calistazz.myhome.cx/8867861869862861/Wallenstein-s-Lager-Prelude-to-Wallenstein-in-Das-Engl-bers-Von-T-Wirgman-by-Johann-Christoph-Friedrich-Von-Schiller.pdf
    • http://calistazz.myhome.cx/3861862864860/Duke-A-Life-of-Duke-Ellington-by-Terry-Teachout.pdf
    • http://calistazz.myhome.cx/4862865861863860/John-Wayne-My-Life-With-the-Duke-by-Pilar-Wayne.pdf
    • http://calistazz.myhome.cx/7867868867868867/Surviving-My-Haunted-Life-True-Life-Stories-of-Ghostly-Hauntings-in-Shreveport-La-by-Linda-Mitchell-Logan.pdf
    • http://calistazz.myhome.cx/2862861867866/The-Boy-who-Lived-with-Ghosts-by-John-Mitchell.pdf
    • http://calistazz.myhome.cx/1866860866863868/Life-Over-Easy-Fragments-1-by-K-A-Mitchell.pdf
    • http://calistazz.myhome.cx/6868866860862865/The-life-of-James---Duke-of-Ormond-by-Thomas-Carte.pdf
    • http://calistazz.myhome.cx/1869862868864/My-Life-as-a-Mole-and-Five-Other-Stories-by-Larry-Mitchell.pdf
    • http://calistazz.myhome.cx/1864860862866863/Surfer-of-the-Century-The-Life-of-Duke-Kahanamoku-by-Ellie-Crowe.pdf
    • http://calistazz.myhome.cx/8861864867864865/Certaine-Considerations-Upon-the-Government-of-England-by-John-Mitchell-Kemble.pdf
    • http://calistazz.myhome.cx/6862868868868/Te-Tau-Ihu-o-te-Waka-Te-Ara-Hou---The-New-Society-v-2-a-History-of-Nelson-and-Marlborough-by-John-Mitchell.pdf
    • http://calistazz.myhome.cx/7868860865867860/Searching-for-Life-s-Water-by-Sita-Jehanne-Mitchell.pdf
    • http://calistazz.myhome.cx/3864869864866865/A-Duke-by-December-A-Year-Without-A-Duke-5-by-Sabrina-Darby.pdf
    • http://calistazz.myhome.cx/3864869864864863/What-the-Duke-Doesn-t-Know-The-Duke-s-Sons-2-by-Jane-Ashford.pdf
    • http://calistazz.myhome.cx/2869861861860861/The-Way-to-a-Duke-s-Heart-The-Truth-About-the-Duke-3-by-Caroline-Linden.pdf
    • http://calistazz.myhome.cx/2864865869860864/For-Love-of-the-Duke-The-Heart-of-a-Duke-1-by-Christi-Caldwell.pdf
    • http://calistazz.myhome.cx/1861866868868868864/Dukes-of-Leinster-Duke-of-Leinster-William-Fitzgerald-2nd-Duke-of-Leinster-James-Fitzgerald-1st-Duke-of-Leinster-Meinhardt-Schomberg-by-Books-LLC.pdf
    • http://calistazz.myhome.cx/2862868860861863/The-Fellowship-The-Untold-Story-of-Frank-Lloyd-Wright-and-the-Taliesin-Fellowship-by-Roger-Friedland.pdf
    • http://calistazz.myhome.cx/8867862860863860/tony-s-world-by-Barry-Wallenstein.pdf
    • http://calistazz.myhome.cx/1869862868864/My-Li

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