Analysis

  • max time kernel
    141s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20231023-en
  • resource tags

    arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
  • submitted
    01-11-2023 02:11

General

  • Target

    NEAS.edf59cbdfcb26b2208966568b8bd2200.exe

  • Size

    196KB

  • MD5

    edf59cbdfcb26b2208966568b8bd2200

  • SHA1

    6106a6cb6450aa2872b2097a2f096cca333fc955

  • SHA256

    e9c57113e7dd1d509e31a53c583e2e392fa9f17701dbe20b8d85f599ea6711a4

  • SHA512

    9be9d43e7c72ee60caea68a1c3cad84f89c2aa87b252aaa1c15c4a7db44c66bc8e9c11a9323becff5a918ef65d5b57072b56ad7c2ac44fdb375bb69d1e8996fb

  • SSDEEP

    1536:ur3Z5IfQmv81aZKyXXZPbihOjrqLy14Gp7FtnV7pjl:yJOfQm01KKyXXZPbi8aIp7nl

Score
8/10

Malware Config

Signatures

  • Sets file to hidden 1 TTPs 1 IoCs

    Modifies file attributes to stop it showing in Explorer etc.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NEAS.edf59cbdfcb26b2208966568b8bd2200.exe
    "C:\Users\Admin\AppData\Local\Temp\NEAS.edf59cbdfcb26b2208966568b8bd2200.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2352
    • C:\Windows\SysWOW64\attrib.exe
      attrib +a +s +h +r C:\Windows\Debug\rwmhost.exe
      2⤵
      • Sets file to hidden
      • Drops file in Windows directory
      • Views/modifies file attributes
      PID:2244
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\NEASED~1.EXE > nul
      2⤵
      • Deletes itself
      PID:2712
  • C:\Windows\Debug\rwmhost.exe
    C:\Windows\Debug\rwmhost.exe
    1⤵
    • Executes dropped EXE
    PID:2796

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\Debug\rwmhost.exe

    Filesize

    196KB

    MD5

    ca0d87179c71170233880d637162a51f

    SHA1

    ee9851b39758aae414a8aa27853b602ccf33fca0

    SHA256

    a010895877d87ad22a554ef27a149c9d51145bb1bd2b465ab1774d9f65c28f09

    SHA512

    5ffcad09dd9037b614047b711d2334dd800bba5624a6f9c38bf398b94a1406dfbab1c49cad3a31cc2678e4b49eda24051ef3e09d76a477d6116d439b778ca701

  • C:\Windows\debug\rwmhost.exe

    Filesize

    196KB

    MD5

    ca0d87179c71170233880d637162a51f

    SHA1

    ee9851b39758aae414a8aa27853b602ccf33fca0

    SHA256

    a010895877d87ad22a554ef27a149c9d51145bb1bd2b465ab1774d9f65c28f09

    SHA512

    5ffcad09dd9037b614047b711d2334dd800bba5624a6f9c38bf398b94a1406dfbab1c49cad3a31cc2678e4b49eda24051ef3e09d76a477d6116d439b778ca701