Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccb9319f2662aa7d…

MALICIOUS

PDF

17.6 KB Created: 2019-04-30 10:34:51 +01:00 Authoring application: mPDF 5.7
MD5: 9a41026866eb42d9914a485b49d1a552 SHA-1: bc8252f697c526b9afa3fb0b4882d00478598812 SHA-256: ccb9319f2662aa7dbbffbf569534a31783c6124e774ef38d93c60df632f3795e
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic. While most of the extracted URLs are marked as benign, the sheer volume and the nature of the heuristic suggest a malicious intent, likely to manipulate search engine results or redirect users to harmful sites. The ML classifier also flagged this PDF with high confidence. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9789

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://loaminoo.linkpc.net/6098098098096090/Caraboo-the-servant-girl-princess-the-real-story-of-the-grand-hoax-by-Jennifer-Raison.pdf
    • http://loaminoo.linkpc.net/2092092098097096/The-Holiday-Hoax-by-Jennifer-Probst.pdf
    • http://loaminoo.linkpc.net/3096096098093098/Body-Drama-Real-Girls-Real-Bodies-Real-Issues-Real-Answers-by-Nancy-Amanda-Redd.pdf
    • http://loaminoo.linkpc.net/2096097092099096/Delete-This-At-Your-Peril-The-Bob-Servant-Emails-by-Bob-Servant.pdf
    • http://loaminoo.linkpc.net/4095092093098098/Unicorns-Get-Real-Camp-Princess-2-by-Kathryn-Lasky.pdf
    • http://loaminoo.linkpc.net/4098091096095099/To-Be-a-Princess-The-Fascinating-Lives-of-Real-Princesses-by-Hugh-Brewster.pdf
    • http://loaminoo.linkpc.net/2092093095096094/Thomas-Cromwell-The-Untold-Story-of-Henry-VIII-s-Most-Faithful-Servant-by-Tracy-Borman.pdf
    • http://loaminoo.linkpc.net/1099093096097097/Escape-from-the-Dungeon-Jennifer-s-Survival-Story-from-the-Wrath-of-Anger-Intimidation-and-Abuse-by-Major-Jennifer-M-Stephens.pdf
    • http://loaminoo.linkpc.net/7099091097094092/Servant-The-Acceptance-Servant-2-by-L-L-Foster.pdf
    • http://loaminoo.linkpc.net/7097090093094/Ditzabled-Princess-A-Comical-Diary-Inspired-by-Real-Life-by-Jewel-Kats.pdf
    • http://loaminoo.linkpc.net/1092094090092099/You-Look-Different-in-Real-Life-by-Jennifer-Castle.pdf
    • http://loaminoo.linkpc.net/8096096091094095/What-Is-a-Princess-by-Jennifer-Liberts-Weinberg.pdf
    • http://loaminoo.linkpc.net/4090099090091090/Real-Dangerous-Girl-Kim-Oh-1-by-K-W-Jeter.pdf
    • http://loaminoo.linkpc.net/3093096090099092/Petunia-the-Girl-who-was-NOT-a-Princess-by-M-R-Nelson.pdf
    • http://loaminoo.linkpc.net/6090092094097095/Every-Little-Girl-is-a-Princess-by-Andree-Prendergast.pdf
    • http://loaminoo.linkpc.net/6090095096096/The-Complete-Princess-Trilogy-Princess-Princess-Sultana-s-Daughters-and-Princess-Sultana-s-Circle-by-Jean-Sasson.pdf
    • http://loaminoo.linkpc.net/3094097096098097/His-Master-s-Servant-Bundle-1-His-Master-s-Servant-1-3-by-Sage-Hampton.pdf
    • http://loaminoo.linkpc.net/5090091094092099/Top-Tips-for-Girls-Real-Advice-from-Real-Women-for-Real-Life-by-Kate-Reardon.pdf
    • http://loaminoo.linkpc.net/1097098099094090/Jacked-The-Outlaw-Story-of-Grand-Theft-Auto-by-David-Kushner.pdf
    • http://loaminoo.linkpc.net/1091095096097095096/Diogee-A-Story-about-a-Grandmother-s-Love-for-Her-Grand-Dog-by-June-Allard-Berte.pdf
    • http://loaminoo.linkpc.net/7097090093094/Ditzable