Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/03/2024, 04:18

General

  • Target
    99d3003cc577c3635bcbb883634037469b35c3b1a31109dc145600bb1e683d4b.exe
  • Size 145KB
  • Sample240314-ewzvaaac41
  • SHA256 99d3003cc577c3635bcbb883634037469b35c3b1a31109dc145600bb1e683d4b
  • MD5 SHA1 SHA512 SSDEEP
Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops desktop.ini file(s) 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\99d3003cc577c3635bcbb883634037469b35c3b1a31109dc145600bb1e683d4b.exe
    "C:\Users\Admin\AppData\Local\Temp\99d3003cc577c3635bcbb883634037469b35c3b1a31109dc145600bb1e683d4b.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1272
    • C:\ProgramData\CEB5.tmp
      "C:\ProgramData\CEB5.tmp"
      2⤵
      • Checks computer location settings
      • Deletes itself
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious behavior: RenamesItself
      • Suspicious use of WriteProcessMemory
      PID:1968
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\CEB5.tmp >> NUL
        3⤵
          PID:3040

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          BBBBBBBBBBB

          • Path C:\$Recycle.Bin\S-1-5-21-513485977-2495024337-1260977654-1000\BBBBBBBBBBB
          • Size 129B
          • SHA256 b8a98cbdbfc8000fcbd0e3e35fbf13528bc17326736cd4dde31b47f34018393a
          • MD5 SHA1 SHA512

          30AqZ5JVE.README.txt

          • Path C:\30AqZ5JVE.README.txt
          • Size 15B
          • SHA256 5f4a942c2cb7471d0036c9e8378981600dd915bc9f891d3b8b45dddc60cf4261
          • MD5 SHA1 SHA512

          CEB5.tmp

          • Path C:\ProgramData\CEB5.tmp
          • Size 14KB
          • SHA256 917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
          • MD5 SHA1 SHA512 SSDEEP

          DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD

          • Path C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD
          • Size 145KB
          • SHA256 fa6a48b3a4bb575ecd3ddbbe66a5ea45904d3881d045bbe42271b0c09a9d8675
          • MD5 SHA1 SHA512 SSDEEP

          DDDDDDDDDDD

          • Path F:\$RECYCLE.BIN\S-1-5-21-513485977-2495024337-1260977654-1000\DDDDDDDDDDD
          • Size 129B
          • SHA256 248234e88443cbd3d71f45526a97b37ac3f218aaa0f1d4187f268ce6de9fa618
          • MD5 SHA1 SHA512

          memory/1272-0-0x0000000001130000-0x0000000001140000-memory.dmp

          memory/1272-2711-0x0000000001130000-0x0000000001140000-memory.dmp

          memory/1272-2710-0x0000000001130000-0x0000000001140000-memory.dmp

          memory/1272-2712-0x0000000001130000-0x0000000001140000-memory.dmp

          memory/1272-2-0x0000000001130000-0x0000000001140000-memory.dmp

          memory/1272-1-0x0000000001130000-0x0000000001140000-memory.dmp

          memory/1968-2725-0x00000000005D0000-0x00000000005E0000-memory.dmp

          memory/1968-2717-0x000000007FE40000-0x000000007FE41000-memory.dmp

          memory/1968-2747-0x00000000005D0000-0x00000000005E0000-memory.dmp

          memory/1968-2748-0x000000007FE20000-0x000000007FE21000-memory.dmp

          memory/1968-2749-0x000000007FDC0000-0x000000007FDC1000-memory.dmp

          memory/1968-2751-0x000000007FE00000-0x000000007FE01000-memory.dmp

          memory/1968-2750-0x000000007FDE0000-0x000000007FDE1000-memory.dmp