Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d3e3e3db8ec4dd0…

MALICIOUS

PDF

18.6 KB Created: 2019-04-30 05:04:24 +01:00 Authoring application: mPDF 5.7
MD5: 116a9017a1412ae1fc731463f55aea7e SHA-1: 793f9f19c823a4e4eaff33fae3a41ac684651402 SHA-256: 1d3e3e3db8ec4dd0e7a4e4fb31ff51d5668cde1f7d6d147e5fa2348f7988c297
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF contains a large number of embedded URLs, identified as a link farm. The ML classifier strongly indicates maliciousness. The primary attack pattern involves directing users to external resources, likely for SEO poisoning or to serve further malicious content. No scripts were extracted from this sample.

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
    • http://loaminoo.linkpc.net/4096090098094092/Attack-on-Titan-Before-the-Fall-Vol-8-Attack-on-Titan-Before-the-Fall-Manga-8-by-Hajime-Isayama.pdf
    • http://loaminoo.linkpc.net/3097095099094090/Attack-on-Titan-Before-the-Fall-Vol-2-Attack-on-Titan-Before-the-Fall-Manga-2-by-Hajime-Isayama.pdf
    • http://loaminoo.linkpc.net/3097095094092094/-Before-the-Fall-8-Shingeki-no-Kyojin-Before-the-Fall-8-Attack-on-Titan-Before-the-Fall-Manga-8-by-Hajime-Isayama.pdf
    • http://loaminoo.linkpc.net/3091094094093098/Attack-on-Titan-Vol-6-Attack-on-Titan-6-by-Hajime-Isayama.pdf
    • http://loaminoo.linkpc.net/1090091090096093/Attack-on-Titan-Vol-2-Attack-on-Titan-2-by-Hajime-Isayama.pdf
    • http://loaminoo.linkpc.net/3092099094090/Attack-on-Titan-Vol-15-by-Hajime-Isayama.pdf
    • http://loaminoo.linkpc.net/4096091099091099/Attack-on-Titan-Vol-20-by-Hajime-Isayama.pdf
    • http://loaminoo.linkpc.net/1090093093091099099/Attack-on-Titan-Vol-12-by-Hajime-Isayama.pdf
    • http://loaminoo.linkpc.net/7094096099093/Attack-on-Titan-Colossal-Edition-1-by-Hajime-Isayama.pdf
    • http://loaminoo.linkpc.net/1091095094090093095/Attack-on-Titan-The-Spinoffs-Collection-by-Hajime-Isayama.pdf
    • http://loaminoo.linkpc.net/9098093093/-15-Shingeki-no-Kyojin-15-Attack-on-Titan-15-by-Hajime-Isayama.pdf
    • http://loaminoo.linkpc.net/8094090093094092/-24-Shingeki-no-Kyojin-24-Attack-on-Titan-24-by-Hajime-Isayama.pdf
    • http://loaminoo.linkpc.net/4096095097093094/Attack-on-Titan-No-Regrets-Complete-Color-Edition-by-Hajime-Isayama.pdf
    • http://loaminoo.linkpc.net/4091099091098094/--LOST-GIRLS-1-Shingeki-no-Kyojin-Lost-Girls-1-Attack-on-Titan-Lost-Girls-Manga-1-by-Hajime-Isayama.pdf
    • http://loaminoo.linkpc.net/4097091091096090/-2-Sungeki-no-Kyojin-2-Spoof-on-Titan-2-by-Hajime-Isayama.pdf
    • http://loaminoo.linkpc.net/4097091090099099/-1-Sungeki-no-Kyojin-1-Spoof-on-Titan-1-by-Hajime-Isayama.pdf
    • http://loaminoo.linkpc.net/5090090096096095/Attack-on-Titan-Anthology-by-Scott-Snyder.pdf
    • http://loaminoo.linkpc.net/7095099096090/Attack-on-Titan-Junior-High-Omnibus-Vol-1-by-Saki-Nakagawa.pdf
    • http://loaminoo.linkpc.net/4097091090094094/--1-Shingeki-Kyojin-Chuugakkou-1-Attack-on-Titan-Junior-High-1-by-Saki-Nakagawa.pdf
    • http://loaminoo.linkpc.net/3097095096099097/Attack-on-Titan-quot-Shingeki-no-Kyojin-quot-Art-Book-3-by-Kyouzi-Asano.pdf

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