Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f14318e45e7fb96…

MALICIOUS

PDF

15.0 KB Created: 2019-05-02 03:05:16 +01:00 Authoring application: mPDF 5.7
MD5: d9a7ba9b1d0ec040215e9ac0b63e0147 SHA-1: f9b5b69ad0005f98d2fa451390f56cce5a741f77 SHA-256: 4f14318e45e7fb962bbcab22667876fa5e3f733fd71540794f3073f76cc490ef
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file contains a large number of embedded links to external PDF documents, hosted on the domain loaminoo.linkpc.net. This heuristic firing suggests a link farm or SEO poisoning attempt, aiming to drive traffic to potentially malicious or unwanted content. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, and the document body was unreadable, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9891

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/1097096091095091/Gauntlet-Arena-2-by-Holly-Jennings.pdf
    • http://loaminoo.linkpc.net/1093095091092098/The-Copper-Gauntlet-by-Holly-Black.pdf
    • http://loaminoo.linkpc.net/4092090097090091/The-Copper-Gauntlet-Magisterium-2-by-Holly-Black.pdf
    • http://loaminoo.linkpc.net/1096092096/The-Copper-Gauntlet-Magisterium-2-by-Holly-Black.pdf
    • http://loaminoo.linkpc.net/1095097095099092/The-Gauntlet-Thrown-Gauntlet-Trilogy-1-by-Cheryl-Dyson.pdf
    • http://loaminoo.linkpc.net/9092099099093099/Arena-Roman-Arena-1-5-by-Simon-Scarrow.pdf
    • http://loaminoo.linkpc.net/9092099099093096/Arena-13-Arena-13-1-by-Joseph-Delaney.pdf
    • http://loaminoo.linkpc.net/3096092097096099/The-Arena-Wars-Arena-Wars-1-by-Samantha-Hoffman.pdf
    • http://loaminoo.linkpc.net/1091095092094093091/Paul-Jennings-Funniest-Stories-by-Paul-Jennings.pdf
    • http://loaminoo.linkpc.net/1099096099090098/Grand-Central-Arena-Grand-Central-Arena-1-by-Ryk-E-Spoor.pdf
    • http://loaminoo.linkpc.net/5093097093096/The-Green-Gauntlet-by-R-F-Delderfield.pdf
    • http://loaminoo.linkpc.net/5090095097092/The-Shadow-of-the-Gauntlet-by-Casey-Caracciolo.pdf
    • http://loaminoo.linkpc.net/1090091095094097092/Infinity-Gauntlet-Omnibus-by-Jim-Starlin.pdf
    • http://loaminoo.linkpc.net/9096093098097093/Codename-Gauntlet-by-Cassandra-Cole.pdf
    • http://loaminoo.linkpc.net/2097092096093099/Guardian-of-the-Gauntlet-by-Lenita-Sheridan.pdf
    • http://loaminoo.linkpc.net/3095097097095/Into-the-Gauntlet-The-39-Clues-10-by-Margaret-Peterson-Haddix.pdf
    • http://loaminoo.linkpc.net/2092096090099098/Eric-Elmoor-and-The-Gauntlet-of-Godric-Book-1-by-Thomas-A-Meyers.pdf
    • http://loaminoo.linkpc.net/2099095098099096/Holly-s-Inbox-by-Holly-Denham.pdf
    • http://loaminoo.linkpc.net/4099094091095094/Holly-s-Heart-Collection-2-Second-Best-Friend-Good-Bye-Dressel-Hills-Straight-A-Teacher-No-Guys-Pact-Little-White-Lies-Holly-s-Heart-6-10-by-Beverly-Lewis.pdf
    • http://loaminoo.linkpc.net/1099097096092090/Vaadivaasal-Arena-by-C-S-Chellappa.pdf
    • http://loaminoo.linkpc.net/50930970