Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ab71cc6f6ebb0f6…

MALICIOUS

PDF

15.9 KB Created: 2019-05-02 05:40:25 +01:00 Authoring application: mPDF 5.7
MD5: 4570a6833b870272853f0e72d6480321 SHA-1: 5dd1859e0ece57d1ed6335c3112138b4ae2bc2f1 SHA-256: 7ab71cc6f6ebb0f6948e65270da444bda07808b0319fbc5d4060c3a6b587e0e9
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for PDF_SEO_LINK_FARM, indicating a mass of external links. The document body confirms the presence of numerous URLs, all pointing to the same domain 'cefasfese.4pu.com' with what appear to be book titles in the path. While the URLs themselves are marked as benign, the sheer volume and structure suggest a potential SEO manipulation or traffic-driving scheme, which can be a precursor to malicious activity. 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/8731736732732/Crossed-Volume-3---Psychopath-by-David-Lapham.pdf
    • http://cefasfese.4pu.com/6739738733736736/Stray-Bullets-Vol-1-by-David-Lapham.pdf
    • http://cefasfese.4pu.com/4734731730734733/Stray-Bullets-Vol-1-Innocence-of-Nihilism-by-David-Lapham.pdf
    • http://cefasfese.4pu.com/1730739730736737737/Psychopath-Exposed-Inside-The-Mind-Of-A-Psychopath-by-John-French.pdf
    • http://cefasfese.4pu.com/1730739730738730735/The-True-Psychopath-Time-of-the-Foalsitter-by-The-Psychopath.pdf
    • http://cefasfese.4pu.com/1730739730738730734/The-True-Psychopath-Filly-Chrysalis-by-The-Psychopath.pdf
    • http://cefasfese.4pu.com/1731736733731732/The-Rise-of-Silas-Lapham-by-William-Dean-Howells.pdf
    • http://cefasfese.4pu.com/1731735736730733737/Rhythmic-Etudes-STEREOGRAMS-for-Bass-Clef-Instruments-Volume-I-by-David-Brubeck-by-David-Brubeck.pdf
    • http://cefasfese.4pu.com/1730739730738730733/Do-U-Kno-Da-Weh-by-The-Psychopath.pdf
    • http://cefasfese.4pu.com/2731730739736738/The-Writings-of-David-Thompson-Volume-1-The-Travels-1850-Version-by-David-Thompson.pdf
    • http://cefasfese.4pu.com/6732733739734/The-Psychopath-Test-by-Jon-Ronson.pdf
    • http://cefasfese.4pu.com/1730739730738730730/A-Shooting-Nightmare-by-The-Psychopath.pdf
    • http://cefasfese.4pu.com/4734736733737730/The-Psychopath-Test-by-Jon-Ronson.pdf
    • http://cefasfese.4pu.com/6736733734735738/Psychopath-by-Leya-Neumann.pdf
    • http://cefasfese.4pu.com/3730736733731736/X-Factor-by-Peter-David-The-Complete-Collection-Volume-2-by-Peter-David.pdf
    • http://cefasfese.4pu.com/1730739730737739737/From-Man-to-Mare-I-Love-My-Mommy-by-The-Psychopath.pdf
    • http://cefasfese.4pu.com/1730739730738730737/Deer-Me-Black-Snow-by-The-Psychopath.pdf
    • http://cefasfese.4pu.com/4731734736730735/Psychopath-Frank-Clevenger-4-by-Keith-Ablow.pdf
    • http://cefasfese.4pu.com/1730739730735737739/Portrait-of-the-Psychopath-as-a-Young-Woman-by-Edward-Lee.pdf
    • http://cefasfese.4pu.com/1731738738736733733/The-Good-Intentions-Of-A-Criminal-Psychopath-by-Steven-Lubeck.pdf

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