Analysis

  • max time kernel
    140s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    08/03/2025, 07:08

General

  • Target

    4db7507380d62465271df29775dd284e6421a2f6848bc9f5eb17188d399e9edf.exe

  • Size

    845KB

  • MD5

    1c952627db9f89d810c16e45f7364f5f

  • SHA1

    75087303e05cbe848e3dd2d709542aaa8f5d98c0

  • SHA256

    4db7507380d62465271df29775dd284e6421a2f6848bc9f5eb17188d399e9edf

  • SHA512

    1ff1cd3b0d685e2fa07714bcddf594507928a116fc33a27615d00859e19e6e4c1dcf0a27c75c52505d12dd086ad8f6cf8f564e56bbd8408cc57d94300112bac4

  • SSDEEP

    24576:yr++eYJ/eRnjnielBiPI/TS1EmUJrJABUGG9Y/assxUfA:y++eYYpnFviw/TS6AI9tsZY

Malware Config

Extracted

Family

darkcloud

C2

https://api.telegram.org/bot7922909971:AAESR5mvezMqr8iz6psLIehHVuWpWpAUuaI/sendMessage?chat_id=7518399906

Signatures

  • DarkCloud

    An information stealer written in Visual Basic.

  • Darkcloud family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4db7507380d62465271df29775dd284e6421a2f6848bc9f5eb17188d399e9edf.exe
    "C:\Users\Admin\AppData\Local\Temp\4db7507380d62465271df29775dd284e6421a2f6848bc9f5eb17188d399e9edf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2392
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\4db7507380d62465271df29775dd284e6421a2f6848bc9f5eb17188d399e9edf.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2820
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\OjzZfu.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2660
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OjzZfu" /XML "C:\Users\Admin\AppData\Local\Temp\tmp907D.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2932
    • C:\Users\Admin\AppData\Local\Temp\4db7507380d62465271df29775dd284e6421a2f6848bc9f5eb17188d399e9edf.exe
      "C:\Users\Admin\AppData\Local\Temp\4db7507380d62465271df29775dd284e6421a2f6848bc9f5eb17188d399e9edf.exe"
      2⤵
        PID:1500
      • C:\Users\Admin\AppData\Local\Temp\4db7507380d62465271df29775dd284e6421a2f6848bc9f5eb17188d399e9edf.exe
        "C:\Users\Admin\AppData\Local\Temp\4db7507380d62465271df29775dd284e6421a2f6848bc9f5eb17188d399e9edf.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        PID:3040

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp907D.tmp

      Filesize

      1KB

      MD5

      6d5465ea396ad1219009e4c4e458021b

      SHA1

      fddd04a46cb5b5b517a09a35b226609a6268c4ba

      SHA256

      6c8be5620a1f9b69a0e2d31f9d87b6c40b81d45d7f73828dfa4ae514072d846a

      SHA512

      cc031e867f18e8772d279094055ae26a5a37b295a6fa8c68201d99a7336baed037f73ce57f2b356e12b14fb407c8d8e1de1c2875fdf9a6f84e9b1891ca105a6b

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

      Filesize

      7KB

      MD5

      a86790784cf588565d29970e88e4b457

      SHA1

      810d8c46016ada125ad694e3d88279a87daf2d22

      SHA256

      edad3bae43135e48a0224389514d1e54a3ae8666acc698bc63b8310a8c8f881a

      SHA512

      874ef033f8169e5a8fd1c0326717ea17f641a1e037c41e0e653a45c1786e3df8a141923ad03e13e9ad6c5e5fcd36c3f79c578c734530a8d5c44959e50def87c1

    • memory/2392-4-0x000000007442E000-0x000000007442F000-memory.dmp

      Filesize

      4KB

    • memory/2392-32-0x0000000074420000-0x0000000074B0E000-memory.dmp

      Filesize

      6.9MB

    • memory/2392-0-0x000000007442E000-0x000000007442F000-memory.dmp

      Filesize

      4KB

    • memory/2392-5-0x0000000074420000-0x0000000074B0E000-memory.dmp

      Filesize

      6.9MB

    • memory/2392-6-0x0000000005070000-0x0000000005128000-memory.dmp

      Filesize

      736KB

    • memory/2392-2-0x0000000074420000-0x0000000074B0E000-memory.dmp

      Filesize

      6.9MB

    • memory/2392-1-0x0000000000A40000-0x0000000000B18000-memory.dmp

      Filesize

      864KB

    • memory/2392-3-0x0000000000330000-0x0000000000340000-memory.dmp

      Filesize

      64KB

    • memory/3040-19-0x0000000000400000-0x000000000046D000-memory.dmp

      Filesize

      436KB

    • memory/3040-28-0x0000000000400000-0x000000000046D000-memory.dmp

      Filesize

      436KB

    • memory/3040-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/3040-23-0x0000000000400000-0x000000000046D000-memory.dmp

      Filesize

      436KB

    • memory/3040-21-0x0000000000400000-0x000000000046D000-memory.dmp

      Filesize

      436KB

    • memory/3040-29-0x0000000000400000-0x000000000046D000-memory.dmp

      Filesize

      436KB