Analysis
- max time kernel
126s - max time network
138s - platform
windows10_x64 - resource
win10-en-20211208 - submitted
24/12/2021, 13:33
Static task
static1
Behavioral task
behavioral1
Sample
SAPPHIRE_Plugin.exe
Resource
win7-en-20211208
0 signatures
0 seconds
General
- Target SAPPHIRE_Plugin.exe
- Size 753KB
- Sample211224-qtjaasdbej
- SHA256 52e4aceb09acb18ea005e7bc89522d7353d4b7eded4181777d2e1912aaa846f5
- MD5 b632941f0e34ae5460f332172403297a
- SHA1 b9a80e7824187e8f8db6d6e1ab9511564267ed59
- SHA512 5f80020f0048bea1d20e7fc85b0c863367c5bc53a3c1cfc0d06a69b978ea9bd519d444192048fd3ed54b89221e06dfc7b54070dc17cd88d3f7a5971776e9fa66
- MD5 SHA1 SHA512
Malware Config
Signatures
- Downloads MZ/PE file
- Executes dropped EXE 3 IoCs
pid Process 2920 fm.exe 3236 bdwtibgd.exe 1240 sihost32.exe - Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Drops file in System32 directory 3 IoCs
description ioc Process File created C:\Windows\system32\bdwtibgd.exe conhost.exe File opened for modification C:\Windows\system32\bdwtibgd.exe conhost.exe File created C:\Windows\system32\Microsoft\Telemetry\sihost32.exe conhost.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2520 set thread context of 2372 2520 SAPPHIRE_Plugin.exe 69 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 RegAsm.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString RegAsm.exe - Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2584 schtasks.exe - Suspicious behavior: EnumeratesProcesses 18 IoCs
pid Process 2372 RegAsm.exe 2372 RegAsm.exe 2372 RegAsm.exe 2000 conhost.exe 1200 powershell.exe 1200 powershell.exe 1200 powershell.exe 2516 powershell.exe 2516 powershell.exe 2516 powershell.exe 1488 conhost.exe 1488 conhost.exe 2368 powershell.exe 2368 powershell.exe 2368 powershell.exe 3284 powershell.exe 3284 powershell.exe 3284 powershell.exe - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeDebugPrivilege 2372 RegAsm.exe Token: SeDebugPrivilege 2000 conhost.exe Token: SeDebugPrivilege 1200 powershell.exe Token: SeIncreaseQuotaPrivilege 1200 powershell.exe Token: SeSecurityPrivilege 1200 powershell.exe Token: SeTakeOwnershipPrivilege 1200 powershell.exe Token: SeLoadDriverPrivilege 1200 powershell.exe Token: SeSystemProfilePrivilege 1200 powershell.exe Token: SeSystemtimePrivilege 1200 powershell.exe Token: SeProfSingleProcessPrivilege 1200 powershell.exe Token: SeIncBasePriorityPrivilege 1200 powershell.exe Token: SeCreatePagefilePrivilege 1200 powershell.exe Token: SeBackupPrivilege 1200 powershell.exe Token: SeRestorePrivilege 1200 powershell.exe Token: SeShutdownPrivilege 1200 powershell.exe Token: SeDebugPrivilege 1200 powershell.exe Token: SeSystemEnvironmentPrivilege 1200 powershell.exe Token: SeRemoteShutdownPrivilege 1200 powershell.exe Token: SeUndockPrivilege 1200 powershell.exe Token: SeManageVolumePrivilege 1200 powershell.exe Token: 33 1200 powershell.exe Token: 34 1200 powershell.exe Token: 35 1200 powershell.exe Token: 36 1200 powershell.exe Token: SeDebugPrivilege 2516 powershell.exe Token: SeIncreaseQuotaPrivilege 2516 powershell.exe Token: SeSecurityPrivilege 2516 powershell.exe Token: SeTakeOwnershipPrivilege 2516 powershell.exe Token: SeLoadDriverPrivilege 2516 powershell.exe Token: SeSystemProfilePrivilege 2516 powershell.exe Token: SeSystemtimePrivilege 2516 powershell.exe Token: SeProfSingleProcessPrivilege 2516 powershell.exe Token: SeIncBasePriorityPrivilege 2516 powershell.exe Token: SeCreatePagefilePrivilege 2516 powershell.exe Token: SeBackupPrivilege 2516 powershell.exe Token: SeRestorePrivilege 2516 powershell.exe Token: SeShutdownPrivilege 2516 powershell.exe Token: SeDebugPrivilege 2516 powershell.exe Token: SeSystemEnvironmentPrivilege 2516 powershell.exe Token: SeRemoteShutdownPrivilege 2516 powershell.exe Token: SeUndockPrivilege 2516 powershell.exe Token: SeManageVolumePrivilege 2516 powershell.exe Token: 33 2516 powershell.exe Token: 34 2516 powershell.exe Token: 35 2516 powershell.exe Token: 36 2516 powershell.exe Token: SeDebugPrivilege 1488 conhost.exe Token: SeDebugPrivilege 2368 powershell.exe Token: SeIncreaseQuotaPrivilege 2368 powershell.exe Token: SeSecurityPrivilege 2368 powershell.exe Token: SeTakeOwnershipPrivilege 2368 powershell.exe Token: SeLoadDriverPrivilege 2368 powershell.exe Token: SeSystemProfilePrivilege 2368 powershell.exe Token: SeSystemtimePrivilege 2368 powershell.exe Token: SeProfSingleProcessPrivilege 2368 powershell.exe Token: SeIncBasePriorityPrivilege 2368 powershell.exe Token: SeCreatePagefilePrivilege 2368 powershell.exe Token: SeBackupPrivilege 2368 powershell.exe Token: SeRestorePrivilege 2368 powershell.exe Token: SeShutdownPrivilege 2368 powershell.exe Token: SeDebugPrivilege 2368 powershell.exe Token: SeSystemEnvironmentPrivilege 2368 powershell.exe Token: SeRemoteShutdownPrivilege 2368 powershell.exe Token: SeUndockPrivilege 2368 powershell.exe - Suspicious use of WriteProcessMemory 41 IoCs
description pid Process procid_target PID 2520 wrote to memory of 2372 2520 SAPPHIRE_Plugin.exe 69 PID 2520 wrote to memory of 2372 2520 SAPPHIRE_Plugin.exe 69 PID 2520 wrote to memory of 2372 2520 SAPPHIRE_Plugin.exe 69 PID 2520 wrote to memory of 2372 2520 SAPPHIRE_Plugin.exe 69 PID 2520 wrote to memory of 2372 2520 SAPPHIRE_Plugin.exe 69 PID 2520 wrote to memory of 2372 2520 SAPPHIRE_Plugin.exe 69 PID 2520 wrote to memory of 2372 2520 SAPPHIRE_Plugin.exe 69 PID 2520 wrote to memory of 2372 2520 SAPPHIRE_Plugin.exe 69 PID 2372 wrote to memory of 2920 2372 RegAsm.exe 71 PID 2372 wrote to memory of 2920 2372 RegAsm.exe 71 PID 2920 wrote to memory of 2000 2920 fm.exe 72 PID 2920 wrote to memory of 2000 2920 fm.exe 72 PID 2920 wrote to memory of 2000 2920 fm.exe 72 PID 2000 wrote to memory of 3316 2000 conhost.exe 73 PID 2000 wrote to memory of 3316 2000 conhost.exe 73 PID 3316 wrote to memory of 1200 3316 cmd.exe 75 PID 3316 wrote to memory of 1200 3316 cmd.exe 75 PID 2000 wrote to memory of 3192 2000 conhost.exe 76 PID 2000 wrote to memory of 3192 2000 conhost.exe 76 PID 3192 wrote to memory of 2584 3192 cmd.exe 78 PID 3192 wrote to memory of 2584 3192 cmd.exe 78 PID 3316 wrote to memory of 2516 3316 cmd.exe 80 PID 3316 wrote to memory of 2516 3316 cmd.exe 80 PID 2000 wrote to memory of 2904 2000 conhost.exe 83 PID 2000 wrote to memory of 2904 2000 conhost.exe 83 PID 2904 wrote to memory of 3236 2904 cmd.exe 85 PID 2904 wrote to memory of 3236 2904 cmd.exe 85 PID 3236 wrote to memory of 1488 3236 bdwtibgd.exe 86 PID 3236 wrote to memory of 1488 3236 bdwtibgd.exe 86 PID 3236 wrote to memory of 1488 3236 bdwtibgd.exe 86 PID 1488 wrote to memory of 1380 1488 conhost.exe 87 PID 1488 wrote to memory of 1380 1488 conhost.exe 87 PID 1380 wrote to memory of 2368 1380 cmd.exe 89 PID 1380 wrote to memory of 2368 1380 cmd.exe 89 PID 1488 wrote to memory of 1240 1488 conhost.exe 90 PID 1488 wrote to memory of 1240 1488 conhost.exe 90 PID 1380 wrote to memory of 3284 1380 cmd.exe 91 PID 1380 wrote to memory of 3284 1380 cmd.exe 91 PID 1240 wrote to memory of 3652 1240 sihost32.exe 92 PID 1240 wrote to memory of 3652 1240 sihost32.exe 92 PID 1240 wrote to memory of 3652 1240 sihost32.exe 92
Processes
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C:\Users\Admin\AppData\Local\Temp\SAPPHIRE_Plugin.exe"C:\Users\Admin\AppData\Local\Temp\SAPPHIRE_Plugin.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2520 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe#cmd2⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2372 -
C:\Users\Admin\AppData\Local\Temp\fm.exe"C:\Users\Admin\AppData\Local\Temp\fm.exe"3⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2920 -
C:\Windows\System32\conhost.exe"C:\Windows\System32\conhost.exe" "C:\Users\Admin\AppData\Local\Temp\fm.exe"4⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2000 -
C:\Windows\System32\cmd.exe"cmd" cmd /c powershell -Command "Add-MpPreference -ExclusionPath @(($pwd).path, $env:UserProfile,$env:AppData,$env:Temp,$env:SystemRoot,$env:HomeDrive,$env:SystemDrive) -Force" & powershell -Command "Add-MpPreference -ExclusionExtension @('exe','dll') -Force" & exit5⤵
- Suspicious use of WriteProcessMemory
PID:3316 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command "Add-MpPreference -ExclusionPath @(($pwd).path, $env:UserProfile,$env:AppData,$env:Temp,$env:SystemRoot,$env:HomeDrive,$env:SystemDrive) -Force"6⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1200
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command "Add-MpPreference -ExclusionExtension @('exe','dll') -Force"6⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2516
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C:\Windows\System32\cmd.exe"cmd" /c schtasks /create /f /sc onlogon /rl highest /tn "bdwtibgd" /tr "C:\Windows\system32\bdwtibgd.exe"5⤵
- Suspicious use of WriteProcessMemory
PID:3192 -
C:\Windows\system32\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "bdwtibgd" /tr "C:\Windows\system32\bdwtibgd.exe"6⤵
- Creates scheduled task(s)
PID:2584
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C:\Windows\System32\cmd.exe"cmd" cmd /c "C:\Windows\system32\bdwtibgd.exe"5⤵
- Suspicious use of WriteProcessMemory
PID:2904 -
C:\Windows\system32\bdwtibgd.exeC:\Windows\system32\bdwtibgd.exe6⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3236 -
C:\Windows\System32\conhost.exe"C:\Windows\System32\conhost.exe" "C:\Windows\system32\bdwtibgd.exe"7⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1488 -
C:\Windows\System32\cmd.exe"cmd" cmd /c powershell -Command "Add-MpPreference -ExclusionPath @(($pwd).path, $env:UserProfile,$env:AppData,$env:Temp,$env:SystemRoot,$env:HomeDrive,$env:SystemDrive) -Force" & powershell -Command "Add-MpPreference -ExclusionExtension @('exe','dll') -Force" & exit8⤵
- Suspicious use of WriteProcessMemory
PID:1380 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command "Add-MpPreference -ExclusionPath @(($pwd).path, $env:UserProfile,$env:AppData,$env:Temp,$env:SystemRoot,$env:HomeDrive,$env:SystemDrive) -Force"9⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2368
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -Command "Add-MpPreference -ExclusionExtension @('exe','dll') -Force"9⤵
- Suspicious behavior: EnumeratesProcesses
PID:3284
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C:\Windows\system32\Microsoft\Telemetry\sihost32.exe"C:\Windows\system32\Microsoft\Telemetry\sihost32.exe"8⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1240 -
C:\Windows\System32\conhost.exe"C:\Windows\System32\conhost.exe" "/sihost32"9⤵PID:3652
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