Malicious PDF — malware analysis report

Static analysis result for SHA-256 8cb0afd9efb6e873…

MALICIOUS

PDF

14.7 KB Created: 2019-11-07 21:33:07 +00:00 Authoring application: mPDF 5.7
MD5: 82d5f08db2e17ab19ece56db25df17df SHA-1: d9f3f439b6623b79f714381a1578a7ab5d01cf00 SHA-256: 8cb0afd9efb6e8735987da6e183be5d19b3f39cd3cc4b00bd9e60a831e17891f
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment

The PDF file contains a large number of embedded links to external PDF documents, all hosted on the same domain. This technique is often used to distribute malicious content or to engage in SEO poisoning to drive traffic to malicious sites. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the exact payload.

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/5730734738739733/Liefde-in-de-Hooglanden-by-Laurie-McBain.pdf
    • http://cefasfese.4pu.com/3732733734731735/The-Splendor-Falls-by-Rosemary-Clement-Moore.pdf
    • http://cefasfese.4pu.com/3735737739735737/Club-Scars-The-Trinity-Falls-Series-by-Mara-McBain.pdf
    • http://cefasfese.4pu.com/7730736736738730/Days-like-This-Jackson-Falls-3-by-Laurie-Breton.pdf
    • http://cefasfese.4pu.com/1733735733730731/Sleeping-with-the-Enemy-Jackson-Falls-2-by-Laurie-Breton.pdf
    • http://cefasfese.4pu.com/7730736737738733/Face-the-Music-Beyond-Jackson-Falls-Book-1-by-Laurie-Breton.pdf
    • http://cefasfese.4pu.com/6737739734732/Obsession-Falls-Virtue-Falls-2-by-Christina-Dodd.pdf
    • http://cefasfese.4pu.com/4731738731732738/A-Firefighter-s-Christmas-Gift-Holidays-in-Heart-Falls-1-Heart-Falls-3-by-Vivian-Arend.pdf
    • http://cefasfese.4pu.com/7732732730731734/Droga-do-Lake-Falls-Szepty-w-ciemno-ciach-Lake-Falls-3-by-Artur-K-Dormann.pdf
    • http://cefasfese.4pu.com/2739735739732736/The-Con-Man-by-Ed-McBain.pdf
    • http://cefasfese.4pu.com/7738737735737735/Christmas-in-Icicle-Falls-Life-in-Icicle-Falls-11-by-Sheila-Roberts.pdf
    • http://cefasfese.4pu.com/3733730737732730/The-Last-Best-Hope-by-Ed-McBain.pdf
    • http://cefasfese.4pu.com/4739732737736733/Kiss-by-Ed-McBain.pdf
    • http://cefasfese.4pu.com/4730730736737730/Splendor-by-Brenda-Joyce.pdf
    • http://cefasfese.4pu.com/2733730731738737/McCade-s-Way-by-Mara-McBain.pdf
    • http://cefasfese.4pu.com/8732738739736/Ice-87th-Precinct-36-by-Ed-McBain.pdf
    • http://cefasfese.4pu.com/4731732737738732/McBain-Series-Box-Set-1-3-by-I-J-Parnham.pdf
    • http://cefasfese.4pu.com/3730732734739734/McCade-s-Way-by-Mara-McBain.pdf
    • http://cefasfese.4pu.com/3736735736738736/Claim-Splendor-3-by-Janet-Nissenson.pdf
    • http://cefasfese.4pu.com/4732736734732736/When-the-Sky-Fell-on-Splendor-by-Emily-Henry.pdf

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