Analysis
-
max time kernel
160s -
max time network
174s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220113 -
submitted
12/02/2022, 07:17
Static task
static1
Behavioral task
behavioral1
Sample
46ef9917a72794e5f99021e65c831a3342710426d53e40c218f2257b02042607.exe
Resource
win7-en-20211208
General
-
Target
46ef9917a72794e5f99021e65c831a3342710426d53e40c218f2257b02042607.exe
-
Size
1013KB
-
MD5
ce7fea497e325ef4b82a6eee9a96db8f
-
SHA1
30e151ba95e25642bdcaafa78f6aba0cd3833173
-
SHA256
46ef9917a72794e5f99021e65c831a3342710426d53e40c218f2257b02042607
-
SHA512
4f80c8a091caf70adf51456d412701bb53f75a67f18b92af2b8d831c2b6442075ebd9801a8bb6db9008936a0c4e82c9155654709a572d57c32e853c4b44d5be1
Malware Config
Extracted
cryptbot
hevpxm41.top
morosf04.top
-
payload_url
http://kyrgvz05.top/download.php?file=kulmet.exe
Signatures
-
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 Windows directory 8 IoCs
description ioc Process File opened for modification C:\Windows\WindowsUpdate.log svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\Logs\edb.log svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\DataStore.edb svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\DataStore.jfm svchost.exe File opened for modification C:\Windows\SoftwareDistribution\ReportingEvents.log svchost.exe File opened for modification C:\Windows\Logs\CBS\CBS.log TiWorker.exe File opened for modification C:\Windows\WinSxS\pending.xml TiWorker.exe -
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 46ef9917a72794e5f99021e65c831a3342710426d53e40c218f2257b02042607.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 46ef9917a72794e5f99021e65c831a3342710426d53e40c218f2257b02042607.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeShutdownPrivilege 836 svchost.exe Token: SeCreatePagefilePrivilege 836 svchost.exe Token: SeShutdownPrivilege 836 svchost.exe Token: SeCreatePagefilePrivilege 836 svchost.exe Token: SeShutdownPrivilege 836 svchost.exe Token: SeCreatePagefilePrivilege 836 svchost.exe Token: SeSecurityPrivilege 3952 TiWorker.exe Token: SeRestorePrivilege 3952 TiWorker.exe Token: SeBackupPrivilege 3952 TiWorker.exe Token: SeBackupPrivilege 3952 TiWorker.exe Token: SeRestorePrivilege 3952 TiWorker.exe Token: SeSecurityPrivilege 3952 TiWorker.exe Token: SeBackupPrivilege 3952 TiWorker.exe Token: SeRestorePrivilege 3952 TiWorker.exe Token: SeSecurityPrivilege 3952 TiWorker.exe Token: SeBackupPrivilege 3952 TiWorker.exe Token: SeRestorePrivilege 3952 TiWorker.exe Token: SeSecurityPrivilege 3952 TiWorker.exe Token: SeBackupPrivilege 3952 TiWorker.exe Token: SeRestorePrivilege 3952 TiWorker.exe Token: SeSecurityPrivilege 3952 TiWorker.exe Token: SeBackupPrivilege 3952 TiWorker.exe Token: SeRestorePrivilege 3952 TiWorker.exe Token: SeSecurityPrivilege 3952 TiWorker.exe Token: SeBackupPrivilege 3952 TiWorker.exe Token: SeRestorePrivilege 3952 TiWorker.exe Token: SeSecurityPrivilege 3952 TiWorker.exe Token: SeBackupPrivilege 3952 TiWorker.exe Token: SeRestorePrivilege 3952 TiWorker.exe Token: SeSecurityPrivilege 3952 TiWorker.exe Token: SeBackupPrivilege 3952 TiWorker.exe Token: SeRestorePrivilege 3952 TiWorker.exe Token: SeSecurityPrivilege 3952 TiWorker.exe Token: SeBackupPrivilege 3952 TiWorker.exe Token: SeRestorePrivilege 3952 TiWorker.exe Token: SeSecurityPrivilege 3952 TiWorker.exe Token: SeBackupPrivilege 3952 TiWorker.exe Token: SeRestorePrivilege 3952 TiWorker.exe Token: SeSecurityPrivilege 3952 TiWorker.exe Token: SeBackupPrivilege 3952 TiWorker.exe Token: SeRestorePrivilege 3952 TiWorker.exe Token: SeSecurityPrivilege 3952 TiWorker.exe Token: SeBackupPrivilege 3952 TiWorker.exe Token: SeRestorePrivilege 3952 TiWorker.exe Token: SeSecurityPrivilege 3952 TiWorker.exe Token: SeBackupPrivilege 3952 TiWorker.exe Token: SeRestorePrivilege 3952 TiWorker.exe Token: SeSecurityPrivilege 3952 TiWorker.exe Token: SeBackupPrivilege 3952 TiWorker.exe Token: SeRestorePrivilege 3952 TiWorker.exe Token: SeSecurityPrivilege 3952 TiWorker.exe Token: SeBackupPrivilege 3952 TiWorker.exe Token: SeRestorePrivilege 3952 TiWorker.exe Token: SeSecurityPrivilege 3952 TiWorker.exe Token: SeBackupPrivilege 3952 TiWorker.exe Token: SeRestorePrivilege 3952 TiWorker.exe Token: SeSecurityPrivilege 3952 TiWorker.exe Token: SeBackupPrivilege 3952 TiWorker.exe Token: SeRestorePrivilege 3952 TiWorker.exe Token: SeSecurityPrivilege 3952 TiWorker.exe Token: SeBackupPrivilege 3952 TiWorker.exe Token: SeRestorePrivilege 3952 TiWorker.exe Token: SeSecurityPrivilege 3952 TiWorker.exe Token: SeBackupPrivilege 3952 TiWorker.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\46ef9917a72794e5f99021e65c831a3342710426d53e40c218f2257b02042607.exe"C:\Users\Admin\AppData\Local\Temp\46ef9917a72794e5f99021e65c831a3342710426d53e40c218f2257b02042607.exe"1⤵
- Checks processor information in registry
PID:4484
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:836
-
C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exeC:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:3952