Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f8e3407880e7643…

MALICIOUS

PDF

13.8 KB Created: 2019-05-03 05:43:51 +01:00 Authoring application: mPDF 5.7
MD5: 418ce7e40e979ee687f0c43f4a6fc05e SHA-1: a75c1ca1e279bff5f6ebdb63b874b0193ebbbf44 SHA-256: 8f8e3407880e76430a853d22dad51cc34c47070ca3714e649b4a87da7d3f7443
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of embedded URLs, identified as a link farm. These URLs point to various book titles hosted on loaminoo.linkpc.net, suggesting a tactic to manipulate search engine results or drive traffic. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the specific lure. The primary attack pattern observed is the distribution of numerous external links.

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/6098093092099096/River-s-End-The-Inn-at-Shining-Waters-3-by-Melody-Carlson.pdf
    • http://loaminoo.linkpc.net/1091091096098/Homeward-by-Melody-Carlson.pdf
    • http://loaminoo.linkpc.net/1091098099094097090/All-I-Have-to-Give-by-Melody-Carlson.pdf
    • http://loaminoo.linkpc.net/2092098096096091/Limelight-by-Melody-Carlson.pdf
    • http://loaminoo.linkpc.net/2092091098098093/Never-Been-Kissed-by-Melody-Carlson.pdf
    • http://loaminoo.linkpc.net/5090091099091094/The-Christmas-Bus-by-Melody-Carlson.pdf
    • http://loaminoo.linkpc.net/5096097093098/The-Other-Side-of-Darkness-by-Melody-Carlson.pdf
    • http://loaminoo.linkpc.net/1095091099098091/A-Simple-Song-by-Melody-Carlson.pdf
    • http://loaminoo.linkpc.net/1091098099094097093/An-Irish-Christmas-by-Melody-Carlson.pdf
    • http://loaminoo.linkpc.net/1091098099094097092/Grace-Unplugged-by-Melody-Carlson.pdf
    • http://loaminoo.linkpc.net/5090092098094091/The-Joy-of-Christmas-A-3-in-1-Collection-by-Melody-Carlson.pdf
    • http://loaminoo.linkpc.net/4094094098097097/Catwalk-On-the-Runway-2-by-Melody-Carlson.pdf
    • http://loaminoo.linkpc.net/1091098099094095093/A-Simple-Christmas-Wish-by-Melody-Carlson.pdf
    • http://loaminoo.linkpc.net/4094094093092093/The-Gift-of-Christmas-Present-by-Melody-Carlson.pdf
    • http://loaminoo.linkpc.net/1092095095090/Awakening-Heart-Second-Chances-3-by-Melody-Carlson.pdf
    • http://loaminoo.linkpc.net/1090097093098096097/As-Young-As-We-Feel-The-Four-Lindas-1-by-Melody-Carlson.pdf
    • http://loaminoo.linkpc.net/2093093098098095/A-Will-a-Way-and-a-Wedding-Dear-Daphne-4-by-Melody-Carlson.pdf
    • http://loaminoo.linkpc.net/1093090095099097/Enticed-A-Dangerous-Connection-Secrets-6-by-Melody-Carlson.pdf
    • http://loaminoo.linkpc.net/2093093099090094/Miranda-and-the-Miner-Westward-to-Home-2-by-Melody-Carlson.pdf
    • http://loaminoo.linkpc.net/4094093096095096/Meant-to-Be-Diary-of-a-Teenage-Girl-Kim-2-by-Melody-Carlson.pdf
    • http://loaminoo.linkpc.net/4094094093092093/Th

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