Malicious PDF — malware analysis report

Static analysis result for SHA-256 b51a91016c1c31c0…

MALICIOUS

PDF

17.8 KB Created: 2020-03-19 02:37:39 +00:00 Authoring application: mPDF 5.7 First seen: 2021-08-20
MD5: 38f65d5ed26a55296bbed85ae1422fed SHA-1: 72e186521b7be8b14e3d650d1a655c1de4b6e998 SHA-256: b51a91016c1c31c053b7656292a07f86179903c8605513f2a61fa3e59ed1b1f2
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, identified by the PDF_SEO_LINK_FARM heuristic. The ML_NYX_PDF_MALICIOUS classifier also flagged this file with high confidence. While no scripts were explicitly extracted, the structure suggests an attempt to manipulate search engine results or redirect users to potentially malicious content hosted on the 'weisncio.myhome.cx' domain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9925

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/3622620629622624/Time-After-Time-Alex-Balfour-1-by-Allen-Appel.pdf In PDF document text
    • http://weisncio.myhome.cx/4621620620629626/A-Time-Travel-Fantasy-Bundle-Footsteps-in-Time-Prince-of-Time-After-Cilmeri-1-2-by-Sarah-Woodbury.pdfIn PDF document text
    • http://weisncio.myhome.cx/4624625628629622/The-Big-Book-Of-Time-Travel-Romance-Includes-After-Cilmeri-0-5-Lost-Highlander-1-The-McKinnon-Legends-1-Out-of-Time-1-Time-Walkers-1-by-Sarah-Woodbury.pdfIn PDF document text
    • http://weisncio.myhome.cx/8626622620628624/A-Magical-Alex-Flinn-3-Book-Collection-Cloaked-A-Kiss-in-Time-Towering-by-Alex-Flinn.pdfIn PDF document text
    • http://weisncio.myhome.cx/2627627624625621/Chronicles-of-Time-Book-2-by-J-C-Allen.pdfIn PDF document text
    • http://weisncio.myhome.cx/7621629626621622/Universal-Time-by-Karen-Lynn-Allen.pdfIn PDF document text
    • http://weisncio.myhome.cx/3625625626622/Yoga-Time-by-Alex-Letner.pdfIn PDF document text
    • http://weisncio.myhome.cx/4626628622624622/A-Kiss-in-Time-by-Alex-Flinn.pdfIn PDF document text
    • http://weisncio.myhome.cx/1625620621620626/Dreams-in-Time-Alex-Charles-2-by-Kim-Reynolds.pdfIn PDF document text
    • http://weisncio.myhome.cx/9627624623627622/The-Decapaphiliac-Or-Love-in-the-Time-of-Cappuccinos-by-Alex-Weinle.pdfIn PDF document text
    • http://weisncio.myhome.cx/1621622622623625/Meteorites-A-Journey-through-Space-and-Time-by-Alex-Bevan.pdfIn PDF document text
    • http://weisncio.myhome.cx/4629627624626627/Distance-and-Time-Time-After-Time-1-by-Mel-Henry.pdfIn PDF document text
    • http://weisncio.myhome.cx/2623628625624628/The-Time-Baroness-Book-One-of-the-Time-Mistress-Series-by-Georgina-Young-Ellis.pdfIn PDF document text
    • http://weisncio.myhome.cx/5629624623623621/Awakening-in-Time-Practical-Time-Management-for-Those-on-a-Spiritual-Path-by-Pamela-Kristan.pdfIn PDF document text
    • http://weisncio.myhome.cx/3623625626624623/The-Time-Paradox-The-New-Psychology-of-Time-That-Will-Change-Your-Life-by-Philip-G-Zimbardo.pdfIn PDF document text
    • http://weisncio.myhome.cx/9627624628623629/15-Take-Your-Time-A-Book-on-Time-Management-and-Life-Planning-by-Kevin-Hockensmith.pdfIn PDF document text
    • http://weisncio.myhome.cx/1621626629621628620/Echoes-in-Time-Time-Traders-Ross-Murdock-6-by-Andre-Norton.pdfIn PDF document text
    • http://weisncio.myhome.cx/1627625624629623/Time-Weaver-Heart-of-Cogs-Time-Collector-1-by-Jacinta-Maree.pdfIn PDF document text
    • http://weisncio.myhome.cx/1621623624624628620/Rise-of-the-Time-Lords-Time-Lord-Series-2-by-Teckla-Satterlee.pdfIn PDF document text
    • http://weisncio.myhome.cx/1621621622628623628/Time-Matters-Global-and-Local-Time-in-Asian-Societies-by-H-Van-Schendel.pdfIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Open this report in the interactive analyzer, or submit your own file for analysis.