Malicious PDF — malware analysis report

Static analysis result for SHA-256 860f237f423138a5…

MALICIOUS

PDF

15.0 KB Created: 2019-05-02 06:17:03 +01:00 Authoring application: mPDF 5.7
MD5: 5ab93bac994f760412ca3a76f12967e6 SHA-1: 65c694b09a403e682e2b3799dd9b021acf16e2ac SHA-256: 860f237f423138a53f593a828747c95f88fb0a5f6feacb5aa22b9948d11668e0
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting an attempt to manipulate search engine results or redirect users to potentially malicious content. While the ML classifier also flagged the PDF as malicious, no specific scripts or executable content were found, indicating the primary malicious function is likely related to the link farm. The presence of numerous external links points towards a potential initial access vector via spearphishing attachment.

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/1093099091099091/Breakfast-with-Scot-by-Michael-Downing.pdf
    • http://loaminoo.linkpc.net/2090093094091092/Wife-by-Agreement-by-Kim-Lawrence.pdf
    • http://loaminoo.linkpc.net/6098098093096091/The-Heir-Agreement-by-Kenzie-Leon.pdf
    • http://loaminoo.linkpc.net/2091093099092096/The-Boyfriend-Agreement-St-Mary-s-Academy-1-by-Seven-Steps.pdf
    • http://loaminoo.linkpc.net/4096098099099097/Master-of-Emotion-The-Agreement-by-Sean-Duenser.pdf
    • http://loaminoo.linkpc.net/4091096090094/Getting-to-Yes-Negotiating-Agreement-Without-Giving-In-by-Roger-Fisher.pdf
    • http://loaminoo.linkpc.net/8090097099091091/Ashton---The-Agreement-A-Cocky-Smiling-O-2-by-Jade-Sinner.pdf
    • http://loaminoo.linkpc.net/3092090098095095/The-Fifth-Agreement-A-Practical-Guide-to-Self-Mastery-by-Miguel-Ruiz.pdf
    • http://loaminoo.linkpc.net/4094096093090091/A-Carnal-Agreement-Regency-Intrigue-1-by-Silvia-Violet.pdf
    • http://loaminoo.linkpc.net/4092092097098092/To-The-Last-Ridge-by-W-H-Downing.pdf
    • http://loaminoo.linkpc.net/1094095093091094/A-Perfect-Mistake-Hope-Parish-2-A-Perfect-Secret-2-by-Zoe-Dawson.pdf
    • http://loaminoo.linkpc.net/9091090098097094/Syntactic-Atlas-of-the-Dutch-Dialects-Volume-I-Pronouns-Agreement-and-Dependencies-by-Sjef-Barbiers.pdf
    • http://loaminoo.linkpc.net/3096096095093093/In-Just-that-Perfect-Moment-The-Perfect-World-2-by-Samantha-L-Hardison.pdf
    • http://loaminoo.linkpc.net/2091092096097093/A-Place-Called-Perfect-Perfect-1-by-Helena-Duggan.pdf
    • http://loaminoo.linkpc.net/3090094095099097/Look-for-Me-by-Moonlight-by-Mary-Downing-Hahn.pdf
    • http://loaminoo.linkpc.net/4093094099096092/Trained-for-Seduction-Spy-Games-1-by-Mia-Downing.pdf
    • http://loaminoo.linkpc.net/1091093097097093/Awake-In-Hell-by-Helen-Downing.pdf
    • http://loaminoo.linkpc.net/1096095095094098/Drive-Me-Crazy-by-Erin-Downing.pdf
    • http://loaminoo.linkpc.net/2099097093090094/Lethal-Limits-Spy-Games-2-by-Mia-Downing.pdf
    • http://loaminoo.linkpc.net/8090097094092/Look-for-Me-by-Moonlight-by-Mary-Downing-Hahn.pdf

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