Malicious PDF — malware analysis report

Static analysis result for SHA-256 072216236cdda819…

MALICIOUS

PDF

15.9 KB Created: 2020-03-19 03:30:15 +00:00 Authoring application: mPDF 5.7
MD5: 9d5b2ea8bcef2b0d61285942fb742baa SHA-1: 5e66d9d5524567d92f885873c9d6e4d1fbb8e7fe SHA-256: 072216236cdda81997fc6da676257f0996d99ea88eb8ebdeee394d02b3d39fc4
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files on a suspicious domain, identified by the PDF_SEO_LINK_FARM heuristic. The ML classifier also flagged this document as malicious. The embedded URLs are likely used for SEO poisoning or to distribute further malicious content, and the document itself is likely delivered via spearphishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9892

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://ieuicufioao.myhome.cx/6556552552551552/The-Sounds-of-Tomorrow-The-Vampire-Diaries-Commencement-1-by-C-L-Marlene.pdf
    • http://ieuicufioao.myhome.cx/9550553552557555/The-Vampire-Diaries---Stefan-s-Diaries---Rache-ist-nicht-The-Vampire-Diaries-3-by-L-J-Smith.pdf
    • http://ieuicufioao.myhome.cx/8558550551550552/The-Vampire-Diaries---Stefan-s-Diaries---Fluch-der-Finsternis-Band-6-by-L-J-Smith.pdf
    • http://ieuicufioao.myhome.cx/3555551557555552/The-Craving-The-Vampire-Diaries-Stefan-s-Diaries-3-by-L-J-Smith.pdf
    • http://ieuicufioao.myhome.cx/4557552553555/The-Ripper-The-Vampire-Diaries-Stefan-s-Diaries-4-by-L-J-Smith.pdf
    • http://ieuicufioao.myhome.cx/4557552553557/The-Asylum-The-Vampire-Diaries-Stefan-s-Diaries-5-by-L-J-Smith.pdf
    • http://ieuicufioao.myhome.cx/3556555551550/Bloodlust-The-Vampire-Diaries-Stefan-s-Diaries-2-by-L-J-Smith.pdf
    • http://ieuicufioao.myhome.cx/1559553559559551/The-Struggle-The-Vampire-Diaries-2-by-L-J-Smith.pdf
    • http://ieuicufioao.myhome.cx/2557552552552559/The-Struggle-The-Vampire-Diaries-2-by-L-J-Smith.pdf
    • http://ieuicufioao.myhome.cx/1553557553553559/Marlene-Marlene-Queen-of-Mean-by-Jane-Lynch.pdf
    • http://ieuicufioao.myhome.cx/2557552551559557/Dark-Reunion-The-Vampire-Diaries-4-by-L-J-Smith.pdf
    • http://ieuicufioao.myhome.cx/3554550555557551/Nightfall-The-Vampire-Diaries-The-Return-1-by-L-J-Smith.pdf
    • http://ieuicufioao.myhome.cx/7554558555556555/Tumbleweeds-The-Vampire-Diaries-The-Return-Extras-2-1-by-L-J-Smith.pdf
    • http://ieuicufioao.myhome.cx/4554552555559/Destiny-Rising-The-Vampire-Diaries-The-Hunters-3-by-L-J-Smith.pdf
    • http://ieuicufioao.myhome.cx/4550557551557550/Shadow-Souls-The-Vampire-Diaries-The-Return-2-by-L-J-Smith.pdf
    • http://ieuicufioao.myhome.cx/4554557559554552/The-Helsing-Diaries-Vampire-High-School-2-by-Ian-Hall.pdf
    • http://ieuicufioao.myhome.cx/4557559551557557/Breaking-Free-The-Vampire-Diaries-Revelations-1-by-L-Maci.pdf
    • http://ieuicufioao.myhome.cx/3554550555557556/Shadow-Souls-The-Vampire-Diaries-The-Return-2-by-L-J-Smith.pdf
    • http://ieuicufioao.myhome.cx/4553559555557553/The-Fury-and-Dark-Reunion-The-Vampire-Diaries-3-4-by-L-J-Smith.pdf
    • http://ieuicufioao.myhome.cx/1559558553559559/The-Sparkly-Vampire--Obsessed-Diaries-by-Lauren-Fobbs.pdf

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