Analysis

  • max time kernel
    186s
  • max time network
    192s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    11-02-2022 06:43

General

  • Target

    8b94ad2dafddd71f66023a87efce42f88aa2a3e0183a5a5d02eb7a8329ed2323.exe

  • Size

    97KB

  • MD5

    74dfac6a06795a4a0eed158f47eead7b

  • SHA1

    4a7652bc69385e4bb120b733c00b0f6ea5a8eb2a

  • SHA256

    8b94ad2dafddd71f66023a87efce42f88aa2a3e0183a5a5d02eb7a8329ed2323

  • SHA512

    6e3a10f1f6d96e2fa503bebbcc12d3c93681afe1ea7e577bffb33f9e029284238e263ce273a7302b56a08d663ba71593af3037baeee948f5c8ac163275b7549c

Malware Config

Signatures

  • GlobeImposter

    GlobeImposter is a ransomware first seen in 2017.

  • Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
  • Modifies extensions of user files 1 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops desktop.ini file(s) 13 IoCs
  • Drops file in Windows directory 8 IoCs
  • Program crash 2 IoCs
  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies data under HKEY_USERS 1 IoCs
  • Modifies registry class 30 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8b94ad2dafddd71f66023a87efce42f88aa2a3e0183a5a5d02eb7a8329ed2323.exe
    "C:\Users\Admin\AppData\Local\Temp\8b94ad2dafddd71f66023a87efce42f88aa2a3e0183a5a5d02eb7a8329ed2323.exe"
    1⤵
    • Modifies extensions of user files
    • Adds Run key to start application
    • Drops desktop.ini file(s)
    PID:2736
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:2740
  • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
    C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:1676
  • C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
    "C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
    1⤵
    • Enumerates system info in registry
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:856
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 856 -s 4512
      2⤵
      • Program crash
      PID:2512
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 856 -s 4512
      2⤵
      • Program crash
      PID:3640
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k netsvcs -p -s BITS
    1⤵
    • Modifies data under HKEY_USERS
    PID:672
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k appmodel -p -s camsvc
    1⤵
      PID:3140
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -pss -s 416 -p 856 -ip 856
      1⤵
      • Suspicious use of NtCreateProcessExOtherParentProcess
      • Suspicious use of WriteProcessMemory
      PID:2276

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/672-142-0x00000239BB0D0000-0x00000239BB0D4000-memory.dmp

      Filesize

      16KB

    • memory/2740-130-0x000001E379380000-0x000001E379390000-memory.dmp

      Filesize

      64KB

    • memory/2740-131-0x000001E379B60000-0x000001E379B70000-memory.dmp

      Filesize

      64KB

    • memory/2740-132-0x000001E37C760000-0x000001E37C764000-memory.dmp

      Filesize

      16KB