Malicious PDF — malware analysis report

Static analysis result for SHA-256 44e4d023058c32c1…

MALICIOUS

PDF

18.5 KB Created: 2020-03-15 10:30:13 +00:00 Authoring application: mPDF 5.7
MD5: 291a6c3798885e5a1ab1746916b8284e SHA-1: bd4a68df043c2acd6299a4bf4fef47728d5c1641 SHA-256: 44e4d023058c32c14a092b89c0709048cc4de426b66b7a8606b3325f5da2dbf8
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, as indicated by the PDF_SEO_LINK_FARM heuristic. These links all point to the same domain, kitasdyu.myhome.cx, and appear to be designed to lure users to download further malicious content. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9920

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/4870871875879879/Josh-Anvil-and-the-Cypress-Door-Josh-Anvil-1-by-Bruce-E-Arrington.pdf
    • http://kitasdyu.myhome.cx/1872878871879879/Little-Orphan-Anvil-Little-Orphan-Anvil-1-by-Joseph-Beekman.pdf
    • http://kitasdyu.myhome.cx/1877871878875878/Josh-of-the-Damned-Triple-Feature-2-The-Final-Checkout-Josh-of-the-Damned-4-by-Andrea-Speed.pdf
    • http://kitasdyu.myhome.cx/4879879879878878/Over-the-Anvil-We-Stretch-by-Anis-Mojgani.pdf
    • http://kitasdyu.myhome.cx/1879871872872877/Anvil-Soul-by-David-O-39-Sullivan.pdf
    • http://kitasdyu.myhome.cx/9876873874877876/Operation-Anvil---Project-Morpheus-by-J-J-Klein.pdf
    • http://kitasdyu.myhome.cx/5874873875877/The-Anvil-of-Ice-The-Winter-of-the-World-1-by-Michael-Scott-Rohan.pdf
    • http://kitasdyu.myhome.cx/4873870873876878/The-Shades-of-Fate-Little-Orphan-Anvil-2-by-Joseph-Beekman.pdf
    • http://kitasdyu.myhome.cx/2874879874879873/Time-s-Anvil-England-Archaeology-and-the-Imagination-by-Richard-Morris.pdf
    • http://kitasdyu.myhome.cx/4876878878870870/Josh-Lanyon-Collected-Novellas-1-by-Josh-Lanyon.pdf
    • http://kitasdyu.myhome.cx/6873879878871874/Converts-to-Christianity-from-Atheism-or-Agnosticism-Including-Jane-Fonda-Bruce-Cockburn-Art-Alexakis-Jennifer-Knapp-John-Maurer-A-J-Muste-Joy-Davidman-Paul-Jones-Singer-George-R-Price-Tamsin-Greig-Ravi-Zacharias-Josh-McDowell-by-Hephaestus-Books.pdf
    • http://kitasdyu.myhome.cx/1870871874874/Bird-Box-by-Josh-Malerman.pdf
    • http://kitasdyu.myhome.cx/3874876873878875/So-This-is-Christmas-by-Josh-Lanyon.pdf
    • http://kitasdyu.myhome.cx/1873875876876875/Bird-Box-by-Josh-Malerman.pdf
    • http://kitasdyu.myhome.cx/5874879875871/Bird-Box-by-Josh-Malerman.pdf
    • http://kitasdyu.myhome.cx/3872879877876871/Those-Who-Are-Left-by-Josh-Stricklin.pdf
    • http://kitasdyu.myhome.cx/4873875876877874/Josh-Wyoming-Sky-2-by-R-C-Ryan.pdf
    • http://kitasdyu.myhome.cx/2871873870876872/I-Spy-Something-Bloody-I-Spy-1-by-Josh-Lanyon.pdf
    • http://kitasdyu.myhome.cx/2877876871870/Rescue-Josh-McGuire-by-Ben-Mikaelsen.pdf
    • http://kitasdyu.myhome.cx/5870875875872877/Yellow-Jack-by-Josh-Russell.pdf
    • http://kitasdyu.myhome.cx/2874879874879873/Time-s-Anvil-England-Archaeology-and-the-Imagi

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