Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/12/2023, 06:43

General

  • Target

    2c0fc7570fab97c9725894c8e45167a3.exe

  • Size

    265KB

  • MD5

    2c0fc7570fab97c9725894c8e45167a3

  • SHA1

    bc8f4036ac058973fac88279079f03d2c4aa66be

  • SHA256

    33ed82e6b9624768b9026fb3028e4675478ca16087c65de96ac73f2499a2c010

  • SHA512

    d54ee4c77e078915fe7ec59a698daa6984971d76329f29437d6ca5770571b07bbeef3ae5d49ee4cee2f67e469c471f48f659fff6993059fd671a41e61b6fd780

  • SSDEEP

    3072:55kvidC2VRT3U64T6k6NwJslkkW4Gviuy/LH+SlckLU0wS+dIzd8Fmr:zkqkoSzJ2XCviuy/NckLU0Vd8Fmr

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Kills process with taskkill 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2c0fc7570fab97c9725894c8e45167a3.exe
    "C:\Users\Admin\AppData\Local\Temp\2c0fc7570fab97c9725894c8e45167a3.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2056
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /f /pid 2056 & ping -n 3 127.1 & del /f /q "C:\Users\Admin\AppData\Local\Temp\2c0fc7570fab97c9725894c8e45167a3.exe" & start C:\Users\Admin\AppData\Local\FBVMEC~1.EXE -f
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4580
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /pid 2056
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:4928
      • C:\Windows\SysWOW64\PING.EXE
        ping -n 3 127.1
        3⤵
        • Runs ping.exe
        PID:1288
      • C:\Users\Admin\AppData\Local\fbvmectszi.exe
        C:\Users\Admin\AppData\Local\FBVMEC~1.EXE -f
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:4132

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\fbvmectszi.exe

    Filesize

    265KB

    MD5

    2c0fc7570fab97c9725894c8e45167a3

    SHA1

    bc8f4036ac058973fac88279079f03d2c4aa66be

    SHA256

    33ed82e6b9624768b9026fb3028e4675478ca16087c65de96ac73f2499a2c010

    SHA512

    d54ee4c77e078915fe7ec59a698daa6984971d76329f29437d6ca5770571b07bbeef3ae5d49ee4cee2f67e469c471f48f659fff6993059fd671a41e61b6fd780

  • memory/2056-0-0x0000000000D30000-0x0000000000D31000-memory.dmp

    Filesize

    4KB

  • memory/2056-1-0x0000000001000000-0x0000000001132000-memory.dmp

    Filesize

    1.2MB

  • memory/2056-2-0x0000000001000000-0x0000000001132000-memory.dmp

    Filesize

    1.2MB

  • memory/2056-3-0x0000000001000000-0x0000000001132000-memory.dmp

    Filesize

    1.2MB

  • memory/2056-4-0x0000000000D40000-0x0000000000D42000-memory.dmp

    Filesize

    8KB

  • memory/2056-6-0x0000000001000000-0x0000000001132000-memory.dmp

    Filesize

    1.2MB

  • memory/4132-19-0x0000000001000000-0x0000000001132000-memory.dmp

    Filesize

    1.2MB

  • memory/4132-26-0x0000000001000000-0x0000000001132000-memory.dmp

    Filesize

    1.2MB

  • memory/4132-13-0x0000000001000000-0x0000000001132000-memory.dmp

    Filesize

    1.2MB

  • memory/4132-14-0x0000000000AF0000-0x0000000000AF2000-memory.dmp

    Filesize

    8KB

  • memory/4132-16-0x0000000001000000-0x0000000001132000-memory.dmp

    Filesize

    1.2MB

  • memory/4132-10-0x0000000000440000-0x0000000000441000-memory.dmp

    Filesize

    4KB

  • memory/4132-21-0x0000000000440000-0x0000000000441000-memory.dmp

    Filesize

    4KB

  • memory/4132-22-0x0000000001000000-0x0000000001132000-memory.dmp

    Filesize

    1.2MB

  • memory/4132-24-0x0000000001000000-0x0000000001132000-memory.dmp

    Filesize

    1.2MB

  • memory/4132-12-0x0000000001000000-0x0000000001132000-memory.dmp

    Filesize

    1.2MB

  • memory/4132-29-0x0000000001000000-0x0000000001132000-memory.dmp

    Filesize

    1.2MB

  • memory/4132-31-0x0000000001000000-0x0000000001132000-memory.dmp

    Filesize

    1.2MB

  • memory/4132-33-0x0000000001000000-0x0000000001132000-memory.dmp

    Filesize

    1.2MB

  • memory/4132-35-0x0000000001000000-0x0000000001132000-memory.dmp

    Filesize

    1.2MB

  • memory/4132-37-0x0000000001000000-0x0000000001132000-memory.dmp

    Filesize

    1.2MB

  • memory/4132-39-0x0000000001000000-0x0000000001132000-memory.dmp

    Filesize

    1.2MB

  • memory/4132-43-0x0000000001000000-0x0000000001132000-memory.dmp

    Filesize

    1.2MB