Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bac5085ef2cf9d2…

MALICIOUS

PDF

16.7 KB Created: 2019-05-02 17:14:41 +01:00 Authoring application: mPDF 5.7
MD5: 215421fe22a2ab73f4f8a1bfb3384c53 SHA-1: f29204c14fdf31ed5e4a4b0a4fe7b67ad862363e SHA-256: 1bac5085ef2cf9d2d4e118e62bc41d64e5a2a492bfc682bac7fedfab45ec001d
90 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to other PDF files, a technique often used for SEO manipulation or to distribute malicious content. The ML classifier strongly indicated maliciousness. While the URLs themselves are currently marked as benign, the sheer volume and structure suggest a malicious intent to redirect users to potentially harmful content. No scripts were extracted from this sample.

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://loaminoo.linkpc.net/8091099091095/Jonathan-Barrett-Gentleman-Vampire-Jonathan-Barrett-Gentleman-Vampire-1-4-by-P-N-Elrod.pdf
    • http://loaminoo.linkpc.net/2091099090094099/Death-Masque-Jonathan-Barrett-Gentleman-Vampire-3-by-P-N-Elrod.pdf
    • http://loaminoo.linkpc.net/2099090095094093/Red-Death-Jonathan-Barrett-Gentleman-Vampire-Book-1-by-P-N-Elrod.pdf
    • http://loaminoo.linkpc.net/2091099090095094/Death-and-the-Maiden-Jonathan-Barrett-Gentleman-Vampire-2-by-P-N-Elrod.pdf
    • http://loaminoo.linkpc.net/2091098098093094/Queen-Emerald-Vampire-Food-1-by-Kat-Barrett.pdf
    • http://loaminoo.linkpc.net/4097095095099098/Doctor-Who-Vampire-Science-by-Jonathan-Blum.pdf
    • http://loaminoo.linkpc.net/3095090096097092/The-Vampire-Files-Volume-1-Vampire-Files-1-3-by-P-N-Elrod.pdf
    • http://loaminoo.linkpc.net/2094095098098090/The-Vampire-Files-Volume-1-Vampire-Files-1-3-by-P-N-Elrod.pdf
    • http://loaminoo.linkpc.net/2091094091090095/Bloodlist-Vampire-Files-1-by-P-N-Elrod.pdf
    • http://loaminoo.linkpc.net/2091098097093094/Quincey-Morris-Vampire-by-P-N-Elrod.pdf
    • http://loaminoo.linkpc.net/2091099091090094/Lady-Crymsyn-Vampire-Files-9-by-P-N-Elrod.pdf
    • http://loaminoo.linkpc.net/2091099091090098/The-Dark-Sleep-Vampire-Files-8-by-P-N-Elrod.pdf
    • http://loaminoo.linkpc.net/2091099091091096/Blood-on-the-Water-Vampire-Files-6-by-P-N-Elrod.pdf
    • http://loaminoo.linkpc.net/1094095098090094/A-Gentleman-s-Memoir-A-Gentleman-s-3-by-A-J-Linn.pdf
    • http://loaminoo.linkpc.net/9096095095090095/Her-Shirtless-Gentleman-Gentleman-1-by-M-Q-Barber.pdf
    • http://loaminoo.linkpc.net/4099094098090095/Kiera-Hudson-Limited-Edition-Series-One-Vampire-Shift-Vampire-Wake-amp-Vampire-Hunt-Book-1-by-Tim-O-39-Rourke.pdf
    • http://loaminoo.linkpc.net/9096095096090099/A-Gentleman-s-Daughter-Her-Choice-Gentleman-s-Daughter-1-by-Reina-M-Williams.pdf
    • http://loaminoo.linkpc.net/1090093098098090094/Barhaven-s-Vampire-The-Complete-Trilogy-Plus-Vampire-Seri-amp-the-Demon-by-Maggie-Chatterley.pdf
    • http://loaminoo.linkpc.net/8093096092096098/Masks-An-Erotic-Vampire-Novel-Book-One-The-Vampire-Mask-Series-1-by-Sookie-Shepherd.pdf
    • http://loaminoo.linkpc.net/3097094096090091/Holiday-with-a-Vampire-III-Secret-Vampire-Society-2-by-Linda-Winstead-Jones.pdf

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