Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0f1c6475386c656…

MALICIOUS

PDF

12.4 KB Created: 2019-04-30 09:54:21 +01:00 Authoring application: mPDF 5.7
MD5: ca9c1113af4efa19de0961916d8dd36b SHA-1: 19c5486ffec27d166b80a0b10670c96f70ee0b3e SHA-256: e0f1c6475386c656a6e220c4a27c350c2033648191607ffe0d097d771b5bdc90
90 Risk Score

Malware Insights

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

The PDF contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, which are presented in a way that suggests a link farm or a lure for users to download files. The ML classifier also flagged this PDF as malicious. No scripts were extracted from this sample, and the document body was heavily obfuscated, preventing a deeper analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8780

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/1096097090095092/The-Sum-of-Her-Parts-by-Alan-Dean-Foster.pdf
    • http://loaminoo.linkpc.net/1093099094093091/Midworld-by-Alan-Dean-Foster.pdf
    • http://loaminoo.linkpc.net/2093098096095092/Maori-by-Alan-Dean-Foster.pdf
    • http://loaminoo.linkpc.net/6099092095096099/Mad-Amos-by-Alan-Dean-Foster.pdf
    • http://loaminoo.linkpc.net/1095090099098096/Maori-by-Alan-Dean-Foster.pdf
    • http://loaminoo.linkpc.net/1096092095095098/Transformers-by-Alan-Dean-Foster.pdf
    • http://loaminoo.linkpc.net/3098098094094095/Interlopers-by-Alan-Dean-Foster.pdf
    • http://loaminoo.linkpc.net/1096094092092093/Nor-Crystal-Tears-by-Alan-Dean-Foster.pdf
    • http://loaminoo.linkpc.net/5090095095097099/The-Force-Awakens-by-Alan-Dean-Foster.pdf
    • http://loaminoo.linkpc.net/3098095098097090/Dark-Star-by-Alan-Dean-Foster.pdf
    • http://loaminoo.linkpc.net/2091090091090093/Star-Trek-by-Alan-Dean-Foster.pdf
    • http://loaminoo.linkpc.net/1096090098099095/Dark-Star-by-Alan-Dean-Foster.pdf
    • http://loaminoo.linkpc.net/1096093098090099/Reunion-Pip-amp-Flinx-8-by-Alan-Dean-Foster.pdf
    • http://loaminoo.linkpc.net/2090099098094092/The-Chronicles-of-Riddick-by-Alan-Dean-Foster.pdf
    • http://loaminoo.linkpc.net/2099099092094090/Kingdoms-of-Light-by-Alan-Dean-Foster.pdf
    • http://loaminoo.linkpc.net/1095099099094092/The-End-of-the-Matter-Pip-amp-Flinx-4-by-Alan-Dean-Foster.pdf
    • http://loaminoo.linkpc.net/1096093096098098/Patrimony-Pip-amp-Flinx-13-by-Alan-Dean-Foster.pdf
    • http://loaminoo.linkpc.net/5090092099090/Clash-of-the-Titans-by-Alan-Dean-Foster.pdf
    • http://loaminoo.linkpc.net/1095099099098094/Splinter-of-the-Mind-s-Eye-by-Alan-Dean-Foster.pdf
    • http://loaminoo.linkpc.net/1096093097092091/Trouble-Magnet-Pip-amp-Flinx-12-by-Alan-Dean-Foster.pdf
    • http://loaminoo.linkpc.net/10

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