Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1c258a692506b17…

MALICIOUS

PDF

14.2 KB Created: 2019-05-03 07:51:42 +01:00 Authoring application: mPDF 5.7
MD5: 955ea3b4b20629f24dce4b3555e52e37 SHA-1: 600d297a73da4a828e58dd8bc750ecf2ba51753e SHA-256: a1c258a692506b1798367d868e8868ecf10b95d596e9dd0c19024067ce3d9c6f
60 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs pointing to external PDF files. This technique is often used for SEO manipulation or to distribute malicious content disguised as legitimate documents. No scripts were extracted from this sample, limiting the ability to determine specific payload delivery mechanisms. The primary IOCs are the numerous URLs found within the document body.

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/7734731738735/Falling-for-the-Backup-Assassins-4-by-Toni-Aleo.pdf
    • http://cefasfese.4pu.com/1737738736735738/Empty-Net-Assassins-3-by-Toni-Aleo.pdf
    • http://cefasfese.4pu.com/1739730736731737/4-amp-Counting-Assassins-4-6-by-Toni-Aleo.pdf
    • http://cefasfese.4pu.com/4737731736/Face-Off-at-the-Altar-Assassins-12-by-Toni-Aleo.pdf
    • http://cefasfese.4pu.com/4734733735733/Taking-Shots-Assassins-1-by-Toni-Aleo.pdf
    • http://cefasfese.4pu.com/1739730737734731/A-Very-Merry-Hockey-Holiday-Assassins-8-by-Toni-Aleo.pdf
    • http://cefasfese.4pu.com/9731731732733/Becoming-the-Whiskey-Princess-Taking-Risks-2-by-Toni-Aleo.pdf
    • http://cefasfese.4pu.com/3738734737739732/Misadventures-of-a-Rookie-Misadventures-11-by-Toni-Aleo.pdf
    • http://cefasfese.4pu.com/2739734733739737/Heart-of-the-Assassins-Academy-of-Assassins-2-by-Stacey-Brutger.pdf
    • http://cefasfese.4pu.com/2735733737732730/The-Backup-Plan-by-Jen-McLaughlin.pdf
    • http://cefasfese.4pu.com/6736736732/Academy-of-Assassins-Academy-of-Assassins-1-by-Stacey-Brutger.pdf
    • http://cefasfese.4pu.com/1733738730731733/Allies-amp-Assassins-Allies-amp-Assassins-1-by-Justin-Somper.pdf
    • http://cefasfese.4pu.com/9731739739733731/The-Backup-Asset-Alex-Hoffmann-3-by-Leslie-Wolfe.pdf
    • http://cefasfese.4pu.com/1731731738737739/After-Adam-by-Katie-Aleo.pdf
    • http://cefasfese.4pu.com/9736734736730/Falling-in-Fiji-Falling-in-Paradise-1-by-Casey-Hagen.pdf
    • http://cefasfese.4pu.com/8738734733730731/Falling-into-you---F-r-immer-wir-Falling-1-by-Jasinda-Wilder.pdf
    • http://cefasfese.4pu.com/1734736739735736/Falling-for-the-Enemy-Falling-in-Love-1-by-Sam-Crescent.pdf
    • http://cefasfese.4pu.com/6738739735735/The-Falling-of-Love-Falling-1-by-Marisa-Oldham.pdf
    • http://cefasfese.4pu.com/1734737739730737/Justice-Falling-Falling-3-by-Audrey-Carlan.pdf
    • http://cefasfese.4pu.com/1731734737730735739/Toni-May-Kolner-Kopfe-Kolner-Skizzen-by-Toni-May.pdf
    • http://cefasfese.4pu.com/6736736732/Academy-of-Assassins-Academy-of-Assassins-1-by-Stacey-Brutg

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