Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7b88639035953a3…

MALICIOUS

PDF

20.3 KB Created: 2020-03-19 20:52:56 +00:00 Authoring application: mPDF 5.7
MD5: b4e7e32f7aa870a080a6a0f33a37e074 SHA-1: 478ff5dcf8af8f0b16cd59dd0d63e3c1563544cd SHA-256: e7b88639035953a39cf6b4739cebd4f6a44c18dddf3c799a7963964d2db8b9d7
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links pointing to external PDF files, a technique often used for SEO poisoning or to distribute malicious content. The ML classifier strongly flagged this sample as malicious. The primary attack vector appears to be directing users to a link farm hosted on the suspicious domain kitasdyu.myhome.cx.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9924

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://kitasdyu.myhome.cx/1879876873871870/Trace-of-Magic-Diamond-City-Magic-1-by-Diana-Pharaoh-Francis.pdf
    • http://kitasdyu.myhome.cx/2878873876871874/Edge-of-Dreams-Diamond-City-Magic-2-by-Diana-Pharaoh-Francis.pdf
    • http://kitasdyu.myhome.cx/2873871878876874/Bitter-Night-Horngate-Witches-1-by-Diana-Pharaoh-Francis.pdf
    • http://kitasdyu.myhome.cx/1879877874877876/Bitter-Night-Horngate-Witches-1-by-Diana-Pharaoh-Francis.pdf
    • http://kitasdyu.myhome.cx/2873874875874877/Crimson-Wind-Horngate-Witches-2-by-Diana-Pharaoh-Francis.pdf
    • http://kitasdyu.myhome.cx/5877879878878/City-of-Dark-Magic-City-of-Dark-Magic-1-by-Magnus-Flyte.pdf
    • http://kitasdyu.myhome.cx/2875875876872870/Harnessing-Earth-Magic-A-Witch-s-Guide-to-Elemental-Magic-Elemental-Witchcraft-and-Magic-Book-3-by-Viivi-James.pdf
    • http://kitasdyu.myhome.cx/2875874875871875/Harnessing-Fire-Magic-A-Witch-s-Guide-to-Elemental-Magic-Elemental-Witchcraft-and-Magic-Book-2-by-Viivi-James.pdf
    • http://kitasdyu.myhome.cx/3872871873875871/Polly-Diamond-and-the-Magic-Book-by-Alice-Kuipers.pdf
    • http://kitasdyu.myhome.cx/5873874870/City-of-Light-City-of-Poison-Murder-Magic-and-the-First-Police-Chief-of-Paris-by-Holly-Tucker.pdf
    • http://kitasdyu.myhome.cx/2877875873873878/Reflections-On-the-Magic-of-Writing-by-Diana-Wynne-Jones.pdf
    • http://kitasdyu.myhome.cx/4873873876873878/Storm-Breakers-Age-Of-Magic---A-Kurtherian-Gambit-Series-Storms-Of-Magic-3-by-P-T-Hylton.pdf
    • http://kitasdyu.myhome.cx/3872878871878870/Steampunk-Magic-Working-Magic-Aboard-the-Airship-by-Gypsey-Elaine-Teague.pdf
    • http://kitasdyu.myhome.cx/4878870876872/Moonlight-on-the-Magic-Flute-Magic-Tree-House-41-by-Mary-Pope-Osborne.pdf
    • http://kitasdyu.myhome.cx/6873876878877870/A-Most-Improper-Boxed-Set-Kat-Incorrigible-Renegade-Magic-Stolen-Magic-by-Stephanie-Burgis.pdf
    • http://kitasdyu.myhome.cx/2877877874871875/Gold-Magic-Terror-in-Mind-The-Magic-Series-by-John-Booth.pdf
    • http://kitasdyu.myhome.cx/4875878871870876/Magic-City-by-Yusef-Komunyakaa.pdf
    • http://kitasdyu.myhome.cx/1876871875879876/Steel-City-Magic-by-Wen-Spencer.pdf
    • http://kitasdyu.myhome.cx/3878878870876875/Shades-of-Light-Age-Of-Magic---A-Kurtherian-Gambit-Series-The-Hidden-Magic-Chronicles-1-by-Justin-Sloan.pdf
    • http://kitasdyu.myhome.cx/1872876879876/Breath-of-Magic-Lennox-Family-Magic-1-by-Teresa-Medeiros.pdf
    • http://kitasdyu.myhome.cx/2875874875871875/Harnessing-Fire-Magic-A-Witch-s-Guide-to-Elemental-Magic-Elemental-Witchcraft-

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