Analysis
-
max time kernel
121s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
07-01-2025 20:36
Static task
static1
Behavioral task
behavioral1
Sample
Sigmanly_05dd7b104f2c11892363053cfa4d3feed76b39614b34764ac571893b9495e2c4.exe
Resource
win7-20240903-en
General
-
Target
Sigmanly_05dd7b104f2c11892363053cfa4d3feed76b39614b34764ac571893b9495e2c4.exe
-
Size
4.3MB
-
MD5
8cb06b0904107a21706822f2f2d90832
-
SHA1
37dee7617a62f9a5e5853cc977a125be54ac58b7
-
SHA256
05dd7b104f2c11892363053cfa4d3feed76b39614b34764ac571893b9495e2c4
-
SHA512
23cfb74398c11ebb58060b2da0414008aaba5479e20790c4e7dae1325c24f34996b4ee8aff1ec4b23211be2fcfcb4f3395da117cd414ecea79adfe90ddd9ed7a
-
SSDEEP
98304:x2MM2EP0mQedsJTfKVAakoJykzhZczXGozRrrM3GR7fvkoLsw/ji:x2t3Vuu3FWzWozR4GR0s3
Malware Config
Extracted
cryptbot
Signatures
-
Cryptbot family
-
Enumerates VirtualBox registry keys 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxSF Sigmanly_05dd7b104f2c11892363053cfa4d3feed76b39614b34764ac571893b9495e2c4.exe -
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ Sigmanly_05dd7b104f2c11892363053cfa4d3feed76b39614b34764ac571893b9495e2c4.exe -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion Sigmanly_05dd7b104f2c11892363053cfa4d3feed76b39614b34764ac571893b9495e2c4.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion Sigmanly_05dd7b104f2c11892363053cfa4d3feed76b39614b34764ac571893b9495e2c4.exe -
Identifies Wine through registry keys 2 TTPs 1 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Wine Sigmanly_05dd7b104f2c11892363053cfa4d3feed76b39614b34764ac571893b9495e2c4.exe -
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 NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 3028 Sigmanly_05dd7b104f2c11892363053cfa4d3feed76b39614b34764ac571893b9495e2c4.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 2084 3028 WerFault.exe 29 -
System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Sigmanly_05dd7b104f2c11892363053cfa4d3feed76b39614b34764ac571893b9495e2c4.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 3028 Sigmanly_05dd7b104f2c11892363053cfa4d3feed76b39614b34764ac571893b9495e2c4.exe 3028 Sigmanly_05dd7b104f2c11892363053cfa4d3feed76b39614b34764ac571893b9495e2c4.exe 3028 Sigmanly_05dd7b104f2c11892363053cfa4d3feed76b39614b34764ac571893b9495e2c4.exe 3028 Sigmanly_05dd7b104f2c11892363053cfa4d3feed76b39614b34764ac571893b9495e2c4.exe 3028 Sigmanly_05dd7b104f2c11892363053cfa4d3feed76b39614b34764ac571893b9495e2c4.exe 3028 Sigmanly_05dd7b104f2c11892363053cfa4d3feed76b39614b34764ac571893b9495e2c4.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3028 wrote to memory of 2084 3028 Sigmanly_05dd7b104f2c11892363053cfa4d3feed76b39614b34764ac571893b9495e2c4.exe 31 PID 3028 wrote to memory of 2084 3028 Sigmanly_05dd7b104f2c11892363053cfa4d3feed76b39614b34764ac571893b9495e2c4.exe 31 PID 3028 wrote to memory of 2084 3028 Sigmanly_05dd7b104f2c11892363053cfa4d3feed76b39614b34764ac571893b9495e2c4.exe 31 PID 3028 wrote to memory of 2084 3028 Sigmanly_05dd7b104f2c11892363053cfa4d3feed76b39614b34764ac571893b9495e2c4.exe 31
Processes
-
C:\Users\Admin\AppData\Local\Temp\Sigmanly_05dd7b104f2c11892363053cfa4d3feed76b39614b34764ac571893b9495e2c4.exe"C:\Users\Admin\AppData\Local\Temp\Sigmanly_05dd7b104f2c11892363053cfa4d3feed76b39614b34764ac571893b9495e2c4.exe"1⤵
- Enumerates VirtualBox registry keys
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3028 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3028 -s 6522⤵
- Program crash
PID:2084
-