Malicious PDF — malware analysis report

Static analysis result for SHA-256 18ff828e64ff7ecf…

MALICIOUS

PDF

19.2 KB Created: 2019-05-02 05:41:17 +01:00 Authoring application: mPDF 5.7
MD5: e1495bf90932dcd36c578d0f1a51aa46 SHA-1: 644a56ba34eac5beebd5b4979f0cdd934d29ae7a SHA-256: 18ff828e64ff7ecf4031095e15fb3fc51a4c417b2ee0334a371ace69b708392b
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded links to external PDF files, characteristic of a link farm designed to drive traffic. The ML classifier also flagged this document as malicious with high confidence. No scripts were extracted, and the document body was heavily obfuscated, preventing further analysis of its specific intent beyond link distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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/8095099095094093/City-of-Light-City-of-Poison-Murder-Magic-and-the-First-Police-Chief-of-Paris-by-Holly-Tucker.pdf
    • http://loaminoo.linkpc.net/2093094097097098/Gothic-City-Lights-by-Brindle-Chase.pdf
    • http://loaminoo.linkpc.net/3095097098097098/Dark-City-Lights-New-York-Short-Stories-Have-a-NYC-4-by-Lawrence-Block.pdf
    • http://loaminoo.linkpc.net/1090092091095094090/Paris-at-the-End-of-the-World-How-the-City-of-Lights-Soared-in-Its-Darkest-Hour-1914-1918-by-John-Baxter.pdf
    • http://loaminoo.linkpc.net/1099095094098098/Killing-Time-in-Crystal-City-by-Chris-Lynch.pdf
    • http://loaminoo.linkpc.net/2095096092099095/Pack-Rules-City-Wolves-1-by-J-C-Holly.pdf
    • http://loaminoo.linkpc.net/3097092095093097/The-Sweetest-Kind-of-Fate-Windy-City-Magic-2-by-Crystal-Cestari.pdf
    • http://loaminoo.linkpc.net/3097096090091/City-of-Bones-City-of-Ashes-City-of-Glass-City-of-Fallen-Angels-City-of-Lost-Souls-The-Mortal-Instruments-1-5-by-Cassandra-Clare.pdf
    • http://loaminoo.linkpc.net/4098093094096091/City-of-Bones-City-of-Ashes-City-of-Glass-City-of-Fallen-Angels-City-of-Lost-Souls-The-Mortal-Instruments-1-5-by-Cassandra-Clare.pdf
    • http://loaminoo.linkpc.net/2094092094095099/Under-the-Lights-Bright-Lights-1-by-Tia-Louise.pdf
    • http://loaminoo.linkpc.net/1091092098099095/The-Best-Kind-of-Magic-Windy-City-Magic-1-by-Crystal-Cestari.pdf
    • http://loaminoo.linkpc.net/9091092097095098/Radiation-Protection-in-Medicine-Proceedings-of-the-Twenty-Eighth-Annual-Meeting-1-2-April-1992-As-Presented-at-the-Crystal-City-Marriott-Arlin-by-Andrew-K-Poznanski.pdf
    • http://loaminoo.linkpc.net/2095092097096096/Refracted-Crystal-Diamonds-and-Desire-The-Crystal-Fragments-Trilogy-3-by-M-J-Lawless.pdf
    • http://loaminoo.linkpc.net/1097091095095094/Fragile-Crystal-Rubies-and-Rivalries-The-Crystal-Fragments-Trilogy-2-by-M-J-Lawless.pdf
    • http://loaminoo.linkpc.net/9095091094097/Crystal-Promise-The-Shattered-Crystal-1-by-James-Funfer.pdf
    • http://loaminoo.linkpc.net/2090093098097090/Zelda-and-the-Crystal-Slippers-The-Crystal-Adventures-1-by-R-W-Mitchell.pdf
    • http://loaminoo.linkpc.net/1095099096095090/Crystal-Line-Crystal-Singer-3-by-Anne-McCaffrey.pdf
    • http://loaminoo.linkpc.net/4093093098094093/Crystal-Traveler-Crystal-Message-Chronicles-1-by-R-B-Breighton.pdf
    • http://loaminoo.linkpc.net/5095099095091097/Zelda-and-the-Crystal-Comb-The-Crystal-Adventures-3-by-R-W-Mitchell.pdf
    • http://loaminoo.linkpc.net/2099095098099096/Holly-s-Inbox-by-Holly-Denham.pdf

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