Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ab198ea56afe406…

MALICIOUS

PDF

20.6 KB Created: 2020-02-14 18:57:50 +00:00 Authoring application: mPDF 5.7
MD5: 682acc88583aea3d606ead0dc2acbc0f SHA-1: bb53afe599d01277c279a363c898a7f39ede97f7 SHA-256: 5ab198ea56afe406d5efb14fa0c98e4f7df1f9acd56aa777bc1aff6d4e4bbd0c
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to a single domain, indicating a link farm or a method to distribute content. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect users to potentially malicious content, possibly as part of a phishing or SEO poisoning campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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/3861868865864864/His-Angel-Trident-Security-2-by-Samantha-A-Cole.pdf
    • http://calistazz.myhome.cx/3861868865864863/Tickle-His-Fancy-Trident-Security-6-by-Samantha-A-Cole.pdf
    • http://calistazz.myhome.cx/3861868865865864/A-Dead-Man-s-Pulse-Trident-Security-Omega-Team-1-by-Samantha-A-Cole.pdf
    • http://calistazz.myhome.cx/3861868865866867/The-Friar-by-Samantha-A-Cole.pdf
    • http://calistazz.myhome.cx/3868866869863864/The-Angel-s-Assassin-by-Samantha-Holt.pdf
    • http://calistazz.myhome.cx/4862861868864861/Charlie-s-Angel-Street-Justice-1-by-Samantha-Fury.pdf
    • http://calistazz.myhome.cx/7866867866862860/Embedded-Java-Security-Security-for-Mobile-Devices-by-Mourad-Debbabi.pdf
    • http://calistazz.myhome.cx/1860861863866864/Lead-Security-Rogue-Security-and-Investigation-3-by-Evan-Grace.pdf
    • http://calistazz.myhome.cx/4860864865865868/Summer-Angel-Summer-Spirit-Novellas-1-by-Samantha-Jacobey.pdf
    • http://calistazz.myhome.cx/6866861867860865/Implementing-Cisco-IOS-Network-Security-IINS-CCNA-Security-exam-640-553-Authorized-Self-Study-Guide-by-Catherine-Paquet.pdf
    • http://calistazz.myhome.cx/7869868861866863/Information-Security-Policies-Procedures-and-Standards-Guidelines-for-Effective-Information-Security-Management-by-Thomas-R-Peltier.pdf
    • http://calistazz.myhome.cx/9866861867869863/Der-It-Security-Manager-Aktuelles-Praxiswissen-Fur-It-Security-Manager-Und-It-Sicherheitsbeauftragte-in-Unternehmen-Und-Behorden-by-Heinrich-Kersten.pdf
    • http://calistazz.myhome.cx/3860865866869869/Angel-Surrogates-Chapter-1-Angel-Comic-01-Angel-Season-1-by-Christopher-Golden.pdf
    • http://calistazz.myhome.cx/2865865866860860/Samantha-s-Surprise-A-Christmas-Story-American-Girls-Samantha-3-by-Valerie-Tripp.pdf
    • http://calistazz.myhome.cx/1864860861866860/Samantha-Learns-a-Lesson-A-School-Story-American-Girls-Samantha-2-by-Susan-S-Adler.pdf
    • http://calistazz.myhome.cx/1868860866866864/Samantha-Learns-a-Lesson-A-School-Story-American-Girls-Samantha-2-by-Susan-S-Adler.pdf
    • http://calistazz.myhome.cx/4866862862864863/Titanium-Security-Series-Box-Set-Volume-I-Titanium-Security-1-3-by-Kaylea-Cross.pdf
    • http://calistazz.myhome.cx/3869860866860862/Titanium-Security-Series-Box-Set-Volume-II-Titanium-Security-4-amp-5-by-Kaylea-Cross.pdf
    • http://calistazz.myhome.cx/3866862865863867/Cole-and-Sav-Our-Surprising-Love-Story-by-Cole-LaBrant.pdf
    • http://calistazz.myhome.cx/7863868862863863/Invincible-The-Trident-Code-1-by-Alana-Albertson.pdf