Analysis
- max time kernel
83s - max time network
85s - platform
windows7_x64 - resource
win7v20210408 - submitted
27/04/2021, 10:42
Static task
static1
Behavioral task
behavioral1
Sample
gunzipped.exe
Resource
win7v20210408
0 signatures
0 seconds
General
- Target gunzipped.exe
- Size 895KB
- Sample210427-8cf52c2ftx
- SHA256 163dbf95558cd288990fb6e6d84643d879abf23e8a5910cdd592d74c24f7fbd0
- MD5 901ef6ea0a94551fd5d6d3b1495e9aa9
- SHA1 1522854c3a819ad2c9b1c22c813ce9b8717ff745
- SHA512 4703a2fa84fc0c4107d49dcdfc602cf172dbb32b6afa45bd3d4ed1d0b97435c76cf91e28ddea08833ccfb0a61b9175c8f50e4a9eb1eea3e749c2657a0fc5cdc7
- MD5 SHA1 SHA512
Malware Config
Signatures
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- 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.
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1640 set thread context of 1536 1640 gunzipped.exe 29 - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1640 gunzipped.exe 1640 gunzipped.exe - Suspicious use of AdjustPrivilegeToken 33 IoCs
description pid Process Token: SeDebugPrivilege 1640 gunzipped.exe Token: SeImpersonatePrivilege 1536 gunzipped.exe Token: SeTcbPrivilege 1536 gunzipped.exe Token: SeChangeNotifyPrivilege 1536 gunzipped.exe Token: SeCreateTokenPrivilege 1536 gunzipped.exe Token: SeBackupPrivilege 1536 gunzipped.exe Token: SeRestorePrivilege 1536 gunzipped.exe Token: SeIncreaseQuotaPrivilege 1536 gunzipped.exe Token: SeAssignPrimaryTokenPrivilege 1536 gunzipped.exe Token: SeImpersonatePrivilege 1536 gunzipped.exe Token: SeTcbPrivilege 1536 gunzipped.exe Token: SeChangeNotifyPrivilege 1536 gunzipped.exe Token: SeCreateTokenPrivilege 1536 gunzipped.exe Token: SeBackupPrivilege 1536 gunzipped.exe Token: SeRestorePrivilege 1536 gunzipped.exe Token: SeIncreaseQuotaPrivilege 1536 gunzipped.exe Token: SeAssignPrimaryTokenPrivilege 1536 gunzipped.exe Token: SeImpersonatePrivilege 1536 gunzipped.exe Token: SeTcbPrivilege 1536 gunzipped.exe Token: SeChangeNotifyPrivilege 1536 gunzipped.exe Token: SeCreateTokenPrivilege 1536 gunzipped.exe Token: SeBackupPrivilege 1536 gunzipped.exe Token: SeRestorePrivilege 1536 gunzipped.exe Token: SeIncreaseQuotaPrivilege 1536 gunzipped.exe Token: SeAssignPrimaryTokenPrivilege 1536 gunzipped.exe Token: SeImpersonatePrivilege 1536 gunzipped.exe Token: SeTcbPrivilege 1536 gunzipped.exe Token: SeChangeNotifyPrivilege 1536 gunzipped.exe Token: SeCreateTokenPrivilege 1536 gunzipped.exe Token: SeBackupPrivilege 1536 gunzipped.exe Token: SeRestorePrivilege 1536 gunzipped.exe Token: SeIncreaseQuotaPrivilege 1536 gunzipped.exe Token: SeAssignPrimaryTokenPrivilege 1536 gunzipped.exe - Suspicious use of WriteProcessMemory 10 IoCs
description pid Process procid_target PID 1640 wrote to memory of 1536 1640 gunzipped.exe 29 PID 1640 wrote to memory of 1536 1640 gunzipped.exe 29 PID 1640 wrote to memory of 1536 1640 gunzipped.exe 29 PID 1640 wrote to memory of 1536 1640 gunzipped.exe 29 PID 1640 wrote to memory of 1536 1640 gunzipped.exe 29 PID 1640 wrote to memory of 1536 1640 gunzipped.exe 29 PID 1640 wrote to memory of 1536 1640 gunzipped.exe 29 PID 1640 wrote to memory of 1536 1640 gunzipped.exe 29 PID 1640 wrote to memory of 1536 1640 gunzipped.exe 29 PID 1640 wrote to memory of 1536 1640 gunzipped.exe 29
Processes
-
C:\Users\Admin\AppData\Local\Temp\gunzipped.exe"C:\Users\Admin\AppData\Local\Temp\gunzipped.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1640 -
C:\Users\Admin\AppData\Local\Temp\gunzipped.exeC:\Users\Admin\AppData\Local\Temp\gunzipped.exe2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1536
-