Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5e0c19ac4d44336…

MALICIOUS

PDF

16.0 KB Created: 2019-05-02 02:10:27 +01:00 Authoring application: mPDF 5.7
MD5: d2355869f07aace9a75508ba865c284d SHA-1: f3efe4cc58baf32b28f6796afd85b9ac26b94e9a SHA-256: f5e0c19ac4d4433683f4c5d07eaf1f5fa0cb630d09db286d55fdd9e204387a12
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, identified as a link farm. While the document body is heavily corrupted, the heuristic 'PDF_SEO_LINK_FARM' indicates the primary purpose is to host numerous external links, likely for SEO manipulation or to serve as a distribution point for other malicious content. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9898

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/4099098091093093/Maybe-Right-Maybe-Wrong-by-Dan-Barker.pdf
    • http://loaminoo.linkpc.net/9098093092098090/Wrong-Place-Wrong-Time-The-305th-Bomb-Group-amp-the-2nd-Schweinfurt-Raid-by-George-C-Kuhl.pdf
    • http://loaminoo.linkpc.net/1091097099096099092/Wrong-Place-Wrong-Time-DS-James-Ripley-1-by-P-S-Brown.pdf
    • http://loaminoo.linkpc.net/4093092095097092/Everything-Is-Wrong-with-Me-A-Memoir-of-an-American-Childhood-Gone-Well-Wrong-by-Jason-Mulgrew.pdf
    • http://loaminoo.linkpc.net/1096092096091091/Chose-the-Wrong-Guy-Gave-Him-the-Wrong-Finger-by-Beth-Harbison.pdf
    • http://loaminoo.linkpc.net/7092094090093094/The-Essential-Clive-Barker-Selected-Fiction-by-Clive-Barker.pdf
    • http://loaminoo.linkpc.net/5096092095091092/Denying-the-Wrong-Wrong-2-by-Evelyne-Stone.pdf
    • http://loaminoo.linkpc.net/7092094090092092/Incarnations-Three-Plays-by-Clive-Barker-by-Clive-Barker.pdf
    • http://loaminoo.linkpc.net/7098098099090096/All-the-Wrong-Questions-A-Complete-Mystery-Gift-Set-All-the-Wrong-Questions-1-4-by-Lemony-Snicket.pdf
    • http://loaminoo.linkpc.net/1097096095097095/Clive-Barker-s-Hellraiser-Vol-1-by-Clive-Barker.pdf
    • http://loaminoo.linkpc.net/1091090099/Wrong-Wrong-1-by-L-P-Lovell.pdf
    • http://loaminoo.linkpc.net/1094096094090099/Wrong-Girl-Wrong-Girl-1-by-Lauren-Crossley.pdf
    • http://loaminoo.linkpc.net/9098097093099090/Waffen-SS-At-War-by-A-J-Barker.pdf
    • http://loaminoo.linkpc.net/4098096093097098/Let-Her-Go-by-Dawn-Barker.pdf
    • http://loaminoo.linkpc.net/3092099099091/Imajica-by-Clive-Barker.pdf
    • http://loaminoo.linkpc.net/5098095096092/Imajica-by-Clive-Barker.pdf
    • http://loaminoo.linkpc.net/3093091095093097/O-Caledonia-by-Elspeth-Barker.pdf
    • http://loaminoo.linkpc.net/4096099094096093/Union-Street-by-Pat-Barker.pdf
    • http://loaminoo.linkpc.net/5098093098092094/The-Oliviers-by-Felix-Barker.pdf
    • http://loaminoo.linkpc.net/2098091097097097/The-Incarnations-A-Novel-by-Susan-Barker.pdf
    • http://loaminoo.linkpc.net/5096092095091092/Denying-the-Wrong-Wrong-2-by-Evelyne-Stone

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