Malicious PDF — malware analysis report

Static analysis result for SHA-256 deefa59150aaeec7…

MALICIOUS

PDF

21.1 KB Created: 2020-03-18 09:33:36 +00:00 Authoring application: mPDF 5.7
MD5: ae5751028e300f7e406afd2a12cfd5e7 SHA-1: 5b654b41fb68e74f016ef998384a21d6e00b14b9 SHA-256: deefa59150aaeec7d910869019067c03551c3de278f1a8f3cf2b95156329d2af
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded URLs pointing to external PDF files hosted on a dynamic DNS domain. This technique is often used for SEO poisoning to attract users searching for specific content, leading them to potentially malicious sites. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9939

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://reiteaspdf.dyndns.co.za/19fa09fa99fa59fa59fa69fa3/Sonny-s-Adventure-in-Mystery-Park-by-Lilach-Tzingoker.pdf
    • http://reiteaspdf.dyndns.co.za/19fa19fa89fa29fa29fa79fa6/Brazilian-Gold-Mine-Mystery-A-Biff-Brewster-Mystery-Adventure-by-Andy-Adams.pdf
    • http://reiteaspdf.dyndns.co.za/49fa19fa69fa49fa79fa4/Friends-An-African-Adventure-Fauna-Park-Tales-2-by-Maretha-Botha.pdf
    • http://reiteaspdf.dyndns.co.za/89fa09fa49fa99fa79fa2/Barbapapa-Mystery-at-the-Amusement-Park-by-Annette-Tison.pdf
    • http://reiteaspdf.dyndns.co.za/39fa19fa49fa49fa59fa6/Murder-on-Gramercy-Park-Gaslight-Mystery-3-by-Victoria-Thompson.pdf
    • http://reiteaspdf.dyndns.co.za/29fa69fa89fa89fa79fa7/Bring-Your-Own-Poison-Trailer-Park-Mystery-4-by-Jimmie-Ruth-Evans.pdf
    • http://reiteaspdf.dyndns.co.za/39fa39fa49fa29fa89fa4/Betrayal-Vanish-2-by-Sonny-Daise.pdf
    • http://reiteaspdf.dyndns.co.za/19fa09fa79fa19fa99fa49fa6/En-s-ng-f-r-Sonny-och-Karola-by-Jonas-Bergh.pdf
    • http://reiteaspdf.dyndns.co.za/49fa79fa79fa79fa8/Sonny-Liston-was-a-Friend-of-Mine-by-Thom-Jones.pdf
    • http://reiteaspdf.dyndns.co.za/39fa59fa79fa89fa89fa2/The-Key-to-the-Ranch-An-Alexander-Wright-Mystery-Adventure-6-by-William-L-Mansfield.pdf
    • http://reiteaspdf.dyndns.co.za/49fa69fa19fa39fa39fa3/Blue-Bottle-Mystery-An-Asperger-Adventure-by-Kathy-Hoopmann.pdf
    • http://reiteaspdf.dyndns.co.za/19fa09fa99fa59fa59fa69fa1/Images-That-Influence-by-Lilach-Bullock.pdf
    • http://reiteaspdf.dyndns.co.za/19fa09fa99fa59fa59fa69fa8/Twitter-your-Business-by-Lilach-Bullock.pdf
    • http://reiteaspdf.dyndns.co.za/79fa69fa59fa49fa59fa6/The-Adventure-of-the-Egyptian-Tomb-An-Inspector-Poirot-Mystery-by-Agatha-Christie.pdf
    • http://reiteaspdf.dyndns.co.za/79fa29fa19fa39fa6/Ranger-Baldy-and-the-Disappearing-Waterfall---A-Yosemite-National-Park-Adventure-by-Ranger-Baldy.pdf
    • http://reiteaspdf.dyndns.co.za/89fa09fa09fa09fa89fa0/DEADLY-CROSSING-A-Titanic-Adventure-The-John-Darnell-Mystery-Series-by-Sam-McCarver.pdf
    • http://reiteaspdf.dyndns.co.za/79fa79fa49fa09fa09fa3/The-Tango-School-Mystery-A-Crampton-of-the-Chronicle-adventure-Deadline-Murder-series-1-by-Peter-Bartram.pdf
    • http://reiteaspdf.dyndns.co.za/19fa09fa99fa59fa59fa69fa5/The-Price-of-Prestige-Conspicuous-Consumption-in-International-Relations-by-Lilach-Gilady.pdf
    • http://reiteaspdf.dyndns.co.za/29fa69fa59fa89fa89fa0/Acadia-National-Park-Motorists-Guide-Park-Loop-Road-by-Unknown.pdf
    • http://reiteaspdf.dyndns.co.za/39fa09fa19fa39fa89fa3/Vale-of-Stone-and-Beyond-Paranormal-Mystery-Suspense-and-Drama-Epic-Adventure-Dilemmas-of-a-Dragonslayer-6-by-Ruth-Ford-Elward.pdf
    • http://reiteaspdf.dyndns.co.za/39fa59fa79fa89fa89fa2/The-Key-to-the