Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b0b15e0fe2614bb…

MALICIOUS

PDF

16.0 KB Created: 2019-08-02 07:37:11 +01:00 Authoring application: mPDF 5.7
MD5: 66e4d76e1e6e746663fb3fe8177be28a SHA-1: 1ae457adcc433ae1f4f4fad76f25428f67ad2f00 SHA-256: 4b0b15e0fe2614bb8b5c61dadb03451816b50b9dd4e9a551bcf014d02a7d1682
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file exhibits a critical heuristic firing for a link farm, containing numerous embedded URLs. These URLs point to what appear to be book titles, suggesting a lure to disguise the malicious intent. The primary attack pattern involves leveraging these links, likely to redirect users to malicious sites or to engage in SEO manipulation. No scripts were extracted from this sample.

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://cefasfese.4pu.com/9734738733738738/The-Torn-Trilogy-Chaplets-5-The-Torn-Trilogy-12-Chaplet-Edition-by-Josephine-Thompson.pdf
    • http://cefasfese.4pu.com/9734738733738735/The-Torn-Trilogy-Chaplet-10-The-Torn-Trilogy-12-Chaplets-Edition-by-Sara-Niles-Pen-Name-.pdf
    • http://cefasfese.4pu.com/5730733735736732/War-Torn-The-War-Trilogy-2-by-Andria-Large.pdf
    • http://cefasfese.4pu.com/1732737732739732/Tangled-Torn-Trilogy-2-by-Erica-O-39-Rourke.pdf
    • http://cefasfese.4pu.com/9737735733735736/War-Torn-War-Torn-1-by-Andy-McNab.pdf
    • http://cefasfese.4pu.com/7737733731734731/Torn-All-Torn-Up-1-by-Carian-Cole.pdf
    • http://cefasfese.4pu.com/5730734737739731/Torn-Between-Two-The-Torn-Duet-1-by-Mia-Kayla.pdf
    • http://cefasfese.4pu.com/8736730733739738/Torn-Torn-1-by-D-B-Canavan.pdf
    • http://cefasfese.4pu.com/4737730735733737/Witches-With-the-Enemy-A-Novel-of-the-Mist-Torn-Witches-The-Mist-Torn-Witches-series-Book-3-by-Barb-Hendee.pdf
    • http://cefasfese.4pu.com/1737737739736731/Trial-by-Fire-The-Worldwalker-Trilogy-1-by-Josephine-Angelini.pdf
    • http://cefasfese.4pu.com/2738738732733/Torn-Together-by-Emlyn-Chand.pdf
    • http://cefasfese.4pu.com/4733733739730739/Revealed-by-You-Torn-2-by-J-M-Walker.pdf
    • http://cefasfese.4pu.com/4733733739731736/Perfected-by-You-Torn-3-by-J-M-Walker.pdf
    • http://cefasfese.4pu.com/1734734738734731/Torn-Connections-2-by-Kim-Karr.pdf
    • http://cefasfese.4pu.com/7733733732734/Twisted-Torn-2-by-K-A-Robinson.pdf
    • http://cefasfese.4pu.com/3736737732734733/Pushed-Torn-1-by-A-F-Crowell.pdf
    • http://cefasfese.4pu.com/1732732730738739/Torn-by-Jolynn-Raymond.pdf
    • http://cefasfese.4pu.com/9737735735734730/Christmas-with-You-Torn-5-5-by-Pamela-Ann.pdf
    • http://cefasfese.4pu.com/9737735735738734/Torn-by-Angela-Maye.pdf
    • http://cefasfese.4pu.com/2732730730738734/Frayed-Torn-2-by-Pamela-Ann.pdf

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