Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250619-en
  • resource tags

    arch:x64arch:x86image:win11-20250619-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    08/12/2025, 16:15

General

  • Target
    KR-Inquiry-XXXXX.scr
  • Size 910KB
  • Sample251208-tqfxjseq71
  • SHA256 003fd98ee31461ab7ec424f8180d4e18d9fb99927ec283f5940caa78bf0f5fac
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

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.

  • Executes dropped EXE 4 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads user/profile data of web browsers 3 TTPs

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

  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Program Files directory 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 11 IoCs

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

  • Kills process with taskkill 2 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\KR-Inquiry-XXXXX.scr
    "C:\Users\Admin\AppData\Local\Temp\KR-Inquiry-XXXXX.scr" /S
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2620
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\VoAvfzKm.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5344
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VoAvfzKm" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD89D.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4000
    • C:\Users\Admin\AppData\Local\Temp\KR-Inquiry-XXXXX.scr
      "C:\Users\Admin\AppData\Local\Temp\KR-Inquiry-XXXXX.scr"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5972
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im chrome.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:460
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\WFETSHFW-Admin\chrome.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\WFETSHFW-Admin\chrome.exe"
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2152
        • C:\Program Files\Google\Chrome\Application\Google-Chrome.exe
          "C:\Program Files\Google\Chrome\Application\Google-Chrome.exe"
          4⤵
          • Executes dropped EXE
          PID:1908
  • C:\Users\Admin\AppData\Roaming\VoAvfzKm.exe
    C:\Users\Admin\AppData\Roaming\VoAvfzKm.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4448
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\VoAvfzKm.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5756
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VoAvfzKm" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1E41.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:4088
    • C:\Users\Admin\AppData\Roaming\VoAvfzKm.exe
      "C:\Users\Admin\AppData\Roaming\VoAvfzKm.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:5636
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im chrome.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:3932
  • C:\Program Files\Google\Chrome\Application\133.0.6943.60\elevation_service.exe
    "C:\Program Files\Google\Chrome\Application\133.0.6943.60\elevation_service.exe"
    1⤵
      PID:2972

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          Google-Chrome.exe

          • Path C:\Program Files\Google\Chrome\Application\Google-Chrome.exe
          • Size 8KB
          • SHA256 0f78885c06cc8b07829847f8b9b948f4b3048cb42e4e00dbee8fb684424664ca
          • MD5 SHA1 SHA512 SSDEEP

          223DE96EE265046957A660ED7C9DD9E7_5F4A6047A3FBCAF69FE9965B6C68B6B7

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\223DE96EE265046957A660ED7C9DD9E7_5F4A6047A3FBCAF69FE9965B6C68B6B7
          • Size 2KB
          • SHA256 f0a2ff240da4493b863a753715e2330d667e42341b05963ef557b07ce3044e61
          • MD5 SHA1 SHA512

          ACA7D89F79C6EF86F63EB2FF5D5C876A_8284B572EF59076CACF33815D574B607

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\ACA7D89F79C6EF86F63EB2FF5D5C876A_8284B572EF59076CACF33815D574B607
          • Size 2KB
          • SHA256 1fb0bf3693627454f73251d1c2d2a7117318a73f3566aa8b33eb3bd419195ec2
          • MD5 SHA1 SHA512

          EB2C4AB8B68FFA4B7733A9139239A396_AD876BD6070522D4EE8560FE72EBB41A

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\EB2C4AB8B68FFA4B7733A9139239A396_AD876BD6070522D4EE8560FE72EBB41A
          • Size 1KB
          • SHA256 942f834d61d992f2cd9f5e1e0f8605f224b25e2f510969bd859849ac884f4831
          • MD5 SHA1 SHA512

          EB2C4AB8B68FFA4B7733A9139239A396_D76DB901EE986B889F30D8CC06229E2D

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\EB2C4AB8B68FFA4B7733A9139239A396_D76DB901EE986B889F30D8CC06229E2D
          • Size 5B
          • SHA256 2acab1228e8935d5dfdd1756b8a19698b6c8b786c90f87993ce9799a67a96e4e
          • MD5 SHA1 SHA512

          223DE96EE265046957A660ED7C9DD9E7_5F4A6047A3FBCAF69FE9965B6C68B6B7

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\223DE96EE265046957A660ED7C9DD9E7_5F4A6047A3FBCAF69FE9965B6C68B6B7
          • Size 528B
          • SHA256 d8c2cc4c70c42c2a0cbe1a05085cca2ad7ed497843c64c111974dd14f5a2aae3
          • MD5 SHA1 SHA512

          223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\223DE96EE265046957A660ED7C9DD9E7_EFF9B9BA98DEAA773F261FA85A0B1771
          • Size 364B
          • SHA256 4ca2c7785c21a27113fa1f249ed9ae7c4c9a80c53862de94c1fb90a03981e5af
          • MD5 SHA1 SHA512

          ACA7D89F79C6EF86F63EB2FF5D5C876A_8284B572EF59076CACF33815D574B607

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\ACA7D89F79C6EF86F63EB2FF5D5C876A_8284B572EF59076CACF33815D574B607
          • Size 536B
          • SHA256 4c1b5e94b6de258567e9e8f259940752b88ddf206fbca7a0a62985e49ea6052c
          • MD5 SHA1 SHA512

          ACA7D89F79C6EF86F63EB2FF5D5C876A_8AD14988285EE6F6CBBCCEE3BD7C8E58

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\ACA7D89F79C6EF86F63EB2FF5D5C876A_8AD14988285EE6F6CBBCCEE3BD7C8E58
          • Size 372B
          • SHA256 a975ba411b9b67b36fd2606f3e6434943c0d84d0b4e3cde825f44c8e52daf14c
          • MD5 SHA1 SHA512

          EB2C4AB8B68FFA4B7733A9139239A396_AD876BD6070522D4EE8560FE72EBB41A

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\EB2C4AB8B68FFA4B7733A9139239A396_AD876BD6070522D4EE8560FE72EBB41A
          • Size 536B
          • SHA256 8b2ef7752b80921e5cbd1c8b2eac677377e0c7fba8ca3970910a92fdf1af013a
          • MD5 SHA1 SHA512

          EB2C4AB8B68FFA4B7733A9139239A396_D76DB901EE986B889F30D8CC06229E2D

          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\EB2C4AB8B68FFA4B7733A9139239A396_D76DB901EE986B889F30D8CC06229E2D
          • Size 372B
          • SHA256 f48fafce8bd59db90782fd69fe58e4076825918f587eff49979726ba4d5bdfcc
          • MD5 SHA1 SHA512

          powershell.exe.log

          • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
          • Size 2KB
          • SHA256 9600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
          • MD5 SHA1 SHA512

          StartupProfileData-NonInteractive

          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
          • Size 18KB
          • SHA256 883a4a82134142fc671faca32f6aa9fb820e9dd3199f9d7d57b14fecc3f11d23
          • MD5 SHA1 SHA512 SSDEEP

          __PSScriptPolicyTest_vloqkpkb.z0t.ps1

          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_vloqkpkb.z0t.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512

          tmpD89D.tmp

          • Path C:\Users\Admin\AppData\Local\Temp\tmpD89D.tmp
          • Size 1KB
          • SHA256 1d2d7dabc9f0bf75a1e4dd3d3b1127a08702c89ba4a6eb28a3e0b496067418c5
          • MD5 SHA1 SHA512

          Cookies

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\WFETSHFW-Admin\Cookies
          • Size 20KB
          • SHA256 6a86b9d7ee00ece41493747ab774c1bdaa9400013a79b015a04f3e7806fa60ab
          • MD5 SHA1 SHA512 SSDEEP

          LoginData

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\WFETSHFW-Admin\LoginData
          • Size 56KB
          • SHA256 ce41f2a3255df2099ae8eea9364bd28c6fd6a56c8ca3290bd274944d16d9e6bf
          • MD5 SHA1 SHA512 SSDEEP

          WebData

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\WFETSHFW-Admin\WebData
          • Size 228KB
          • SHA256 257947aba31142bab41ca56915c2ef843c2a156c527dee5d1a07e1224e380aed
          • MD5 SHA1 SHA512 SSDEEP

          chrome.exe

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\WFETSHFW-Admin\chrome.exe
          • Size 28KB
          • SHA256 d890c39dc1644a16f99142a73766db35676b386d6319c6b0f82e8c88ea821a85
          • MD5 SHA1 SHA512 SSDEEP

          chrome_decrypt.zip

          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\WFETSHFW-Admin\chrome_decrypt.zip
          • Size 8KB
          • SHA256 1f5fca2a2ff6581857dfe856692f3146e2d4b40a61c33ae7661f40f2367516ba
          • MD5 SHA1 SHA512 SSDEEP

          VoAvfzKm.exe

          • Path C:\Users\Admin\AppData\Roaming\VoAvfzKm.exe
          • Size 910KB
          • SHA256 003fd98ee31461ab7ec424f8180d4e18d9fb99927ec283f5940caa78bf0f5fac
          • MD5 SHA1 SHA512 SSDEEP

          memory/2620-0-0x00000000008E0000-0x00000000009CA000-memory.dmp

          memory/2620-8-0x00000000093D0000-0x000000000948E000-memory.dmp

          memory/2620-7-0x0000000005320000-0x0000000005330000-memory.dmp

          memory/2620-6-0x0000000005810000-0x000000000582A000-memory.dmp

          memory/2620-5-0x0000000005610000-0x00000000056AC000-memory.dmp

          memory/2620-4-0x0000000005340000-0x000000000534A000-memory.dmp

          memory/2620-3-0x0000000005320000-0x0000000005330000-memory.dmp

          memory/2620-2-0x00000000053B0000-0x0000000005442000-memory.dmp

          memory/2620-1-0x0000000005960000-0x0000000005F06000-memory.dmp

          memory/5344-50-0x00000000079B0000-0x00000000079BA000-memory.dmp

          memory/5344-33-0x0000000006150000-0x00000000064A7000-memory.dmp

          memory/5344-52-0x0000000007B40000-0x0000000007B51000-memory.dmp

          memory/5344-53-0x0000000007B70000-0x0000000007B7E000-memory.dmp

          memory/5344-56-0x0000000007B80000-0x0000000007B95000-memory.dmp

          memory/5344-63-0x0000000007C80000-0x0000000007C9A000-memory.dmp

          memory/5344-64-0x0000000007C70000-0x0000000007C78000-memory.dmp

          memory/5344-49-0x0000000007930000-0x000000000794A000-memory.dmp

          memory/5344-48-0x0000000007F80000-0x00000000085FA000-memory.dmp

          memory/5344-47-0x0000000007800000-0x00000000078A4000-memory.dmp

          memory/5344-14-0x0000000002E20000-0x0000000002E30000-memory.dmp

          memory/5344-39-0x00000000710E0000-0x000000007112C000-memory.dmp

          memory/5344-15-0x0000000002E20000-0x0000000002E30000-memory.dmp

          memory/5344-46-0x0000000006BE0000-0x0000000006BFE000-memory.dmp

          memory/5344-13-0x0000000002DE0000-0x0000000002E16000-memory.dmp

          memory/5344-21-0x0000000005820000-0x0000000005E4A000-memory.dmp

          memory/5344-26-0x0000000005FE0000-0x0000000006046000-memory.dmp

          memory/5344-25-0x0000000005EC0000-0x0000000005F26000-memory.dmp

          memory/5344-24-0x0000000005760000-0x0000000005782000-memory.dmp

          memory/5344-38-0x00000000075C0000-0x00000000075F4000-memory.dmp

          memory/5344-36-0x00000000065E0000-0x00000000065FE000-memory.dmp

          memory/5344-37-0x0000000006630000-0x000000000667C000-memory.dmp

          memory/5344-51-0x0000000007BC0000-0x0000000007C56000-memory.dmp

          memory/5756-158-0x0000000007E70000-0x0000000007E85000-memory.dmp

          memory/5756-157-0x0000000007E30000-0x0000000007E41000-memory.dmp

          memory/5756-156-0x0000000007A90000-0x0000000007B34000-memory.dmp

          memory/5756-149-0x00000000719F0000-0x0000000071A3C000-memory.dmp

          memory/5756-148-0x0000000006C40000-0x0000000006C8C000-memory.dmp

          memory/5756-145-0x0000000006340000-0x0000000006697000-memory.dmp

          memory/5972-20-0x0000000000400000-0x000000000047C000-memory.dmp

          memory/5972-17-0x0000000000400000-0x000000000047C000-memory.dmp

          memory/5972-130-0x0000000000400000-0x000000000047C000-memory.dmp