Analysis

  • max time kernel
    148s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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 8 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4db7507380d62465271df29775dd284e6421a2f6848bc9f5eb17188d399e9edf.exe
    "C:\Users\Admin\AppData\Local\Temp\4db7507380d62465271df29775dd284e6421a2f6848bc9f5eb17188d399e9edf.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4476
    • 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:5096
    • 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:2220
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OjzZfu" /XML "C:\Users\Admin\AppData\Local\Temp\tmp15C5.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:1556
    • C:\Users\Admin\AppData\Local\Temp\4db7507380d62465271df29775dd284e6421a2f6848bc9f5eb17188d399e9edf.exe
      "C:\Users\Admin\AppData\Local\Temp\4db7507380d62465271df29775dd284e6421a2f6848bc9f5eb17188d399e9edf.exe"
      2⤵
        PID:2468
      • 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:2796

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

      Filesize

      2KB

      MD5

      968cb9309758126772781b83adb8a28f

      SHA1

      8da30e71accf186b2ba11da1797cf67f8f78b47c

      SHA256

      92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

      SHA512

      4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

    • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

      Filesize

      18KB

      MD5

      c5353972ec9778af7c5d9b1b2b40bd7b

      SHA1

      dcaf5a07098530ebc2668cb7082873e70a321479

      SHA256

      b39a2493241b981f5d3a67aa73a3aea146b85f0486f71ce945c70110551aaa9a

      SHA512

      3cc0f59d4dbb7cb65b52256d481beea5b668d6fb491913eb52838cd8f48c79f89861e787f11d10fab52518b514e79ab5d49d7fc01eae156beb3289ab542565ba

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_uaqbualf.oky.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmp15C5.tmp

      Filesize

      1KB

      MD5

      e2a5de162c4343c2d39b4e13fdf42a38

      SHA1

      288233948a2ce3e833c1ddf6874eb32bd07c98f2

      SHA256

      21de388580a5ad49d0b9d4fe05e0045bda76770fae386220e4e6a7ad787fb2fe

      SHA512

      73728778a3815a0fc2ae4ed9ad3a6f34962b8a4657f9eb8e337a61b0aa9e9477a3b95baf670293cea12fbee2d8f7c2d177e6480a7d332121b4a079895d3c5012

    • memory/2220-64-0x0000000006280000-0x000000000629E000-memory.dmp

      Filesize

      120KB

    • memory/2220-23-0x00000000752A0000-0x0000000075A50000-memory.dmp

      Filesize

      7.7MB

    • memory/2220-81-0x0000000007230000-0x000000000723E000-memory.dmp

      Filesize

      56KB

    • memory/2220-53-0x00000000062C0000-0x00000000062F2000-memory.dmp

      Filesize

      200KB

    • memory/2220-79-0x0000000007280000-0x0000000007316000-memory.dmp

      Filesize

      600KB

    • memory/2220-25-0x00000000752A0000-0x0000000075A50000-memory.dmp

      Filesize

      7.7MB

    • memory/2220-80-0x0000000007200000-0x0000000007211000-memory.dmp

      Filesize

      68KB

    • memory/2220-51-0x0000000005CF0000-0x0000000005D0E000-memory.dmp

      Filesize

      120KB

    • memory/2220-52-0x00000000060D0000-0x000000000611C000-memory.dmp

      Filesize

      304KB

    • memory/2220-91-0x00000000752A0000-0x0000000075A50000-memory.dmp

      Filesize

      7.7MB

    • memory/2220-54-0x0000000075B30000-0x0000000075B7C000-memory.dmp

      Filesize

      304KB

    • memory/2220-19-0x00000000752A0000-0x0000000075A50000-memory.dmp

      Filesize

      7.7MB

    • memory/2796-42-0x0000000000400000-0x000000000046D000-memory.dmp

      Filesize

      436KB

    • memory/2796-41-0x0000000000400000-0x000000000046D000-memory.dmp

      Filesize

      436KB

    • memory/4476-8-0x00000000752A0000-0x0000000075A50000-memory.dmp

      Filesize

      7.7MB

    • memory/4476-9-0x0000000006360000-0x0000000006418000-memory.dmp

      Filesize

      736KB

    • memory/4476-0-0x00000000752AE000-0x00000000752AF000-memory.dmp

      Filesize

      4KB

    • memory/4476-7-0x00000000752AE000-0x00000000752AF000-memory.dmp

      Filesize

      4KB

    • memory/4476-48-0x00000000752A0000-0x0000000075A50000-memory.dmp

      Filesize

      7.7MB

    • memory/4476-10-0x0000000008CE0000-0x0000000008D7C000-memory.dmp

      Filesize

      624KB

    • memory/4476-6-0x00000000053B0000-0x00000000053C0000-memory.dmp

      Filesize

      64KB

    • memory/4476-5-0x00000000752A0000-0x0000000075A50000-memory.dmp

      Filesize

      7.7MB

    • memory/4476-4-0x0000000005150000-0x000000000515A000-memory.dmp

      Filesize

      40KB

    • memory/4476-3-0x00000000051A0000-0x0000000005232000-memory.dmp

      Filesize

      584KB

    • memory/4476-2-0x00000000056B0000-0x0000000005C54000-memory.dmp

      Filesize

      5.6MB

    • memory/4476-1-0x0000000000690000-0x0000000000768000-memory.dmp

      Filesize

      864KB

    • memory/5096-15-0x0000000002970000-0x00000000029A6000-memory.dmp

      Filesize

      216KB

    • memory/5096-22-0x0000000005360000-0x00000000053C6000-memory.dmp

      Filesize

      408KB

    • memory/5096-65-0x0000000075B30000-0x0000000075B7C000-memory.dmp

      Filesize

      304KB

    • memory/5096-75-0x0000000007470000-0x0000000007513000-memory.dmp

      Filesize

      652KB

    • memory/5096-76-0x0000000007BD0000-0x000000000824A000-memory.dmp

      Filesize

      6.5MB

    • memory/5096-77-0x0000000007590000-0x00000000075AA000-memory.dmp

      Filesize

      104KB

    • memory/5096-78-0x0000000007600000-0x000000000760A000-memory.dmp

      Filesize

      40KB

    • memory/5096-26-0x0000000005CC0000-0x0000000006014000-memory.dmp

      Filesize

      3.3MB

    • memory/5096-24-0x0000000005500000-0x0000000005566000-memory.dmp

      Filesize

      408KB

    • memory/5096-20-0x00000000051C0000-0x00000000051E2000-memory.dmp

      Filesize

      136KB

    • memory/5096-82-0x00000000077D0000-0x00000000077E4000-memory.dmp

      Filesize

      80KB

    • memory/5096-83-0x00000000078D0000-0x00000000078EA000-memory.dmp

      Filesize

      104KB

    • memory/5096-84-0x00000000078B0000-0x00000000078B8000-memory.dmp

      Filesize

      32KB

    • memory/5096-90-0x00000000752A0000-0x0000000075A50000-memory.dmp

      Filesize

      7.7MB

    • memory/5096-18-0x00000000752A0000-0x0000000075A50000-memory.dmp

      Filesize

      7.7MB

    • memory/5096-17-0x0000000005590000-0x0000000005BB8000-memory.dmp

      Filesize

      6.2MB

    • memory/5096-16-0x00000000752A0000-0x0000000075A50000-memory.dmp

      Filesize

      7.7MB