Analysis
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max time kernel
4265059s -
max time network
123s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
17-01-2022 04:53
Static task
static1
General
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Target
86b1514e74faa7b799c6afb16873202fe67ef1d28081b7ac5dacd49ca60130fd.exe
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Size
280KB
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MD5
db4ad185fc751256fce38457da4add14
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SHA1
2dbf190c70f9b73c048a86e139eb37e42df9ac1d
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SHA256
86b1514e74faa7b799c6afb16873202fe67ef1d28081b7ac5dacd49ca60130fd
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SHA512
6a564fc293350f53541edcf807483434bf0b09d85c3523e95e321786fad534d36da7def7451da842ca9d9f2e579f14c458bdaf97e3bd3e07efcb0b34bc7039a6
Malware Config
Extracted
Family
arkei
Botnet
Default
C2
http://file-file-host4.com/tratata.php
Signatures
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Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
Processes:
WerFault.exedescription pid process target process PID 3988 created 3708 3988 WerFault.exe 86b1514e74faa7b799c6afb16873202fe67ef1d28081b7ac5dacd49ca60130fd.exe -
Arkei Stealer Payload 2 IoCs
Processes:
resource yara_rule behavioral1/memory/3708-131-0x0000000000710000-0x000000000072C000-memory.dmp family_arkei behavioral1/memory/3708-132-0x0000000000400000-0x00000000005D0000-memory.dmp family_arkei -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1916 3708 WerFault.exe 86b1514e74faa7b799c6afb16873202fe67ef1d28081b7ac5dacd49ca60130fd.exe -
Checks processor information in registry 2 TTPs 5 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
MusNotification.exeWerFault.exedescription ioc process Key opened \Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0 MusNotification.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz MusNotification.exe Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 WerFault.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz WerFault.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString WerFault.exe -
Enumerates system info in registry 2 TTPs 2 IoCs
Processes:
WerFault.exedescription ioc process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS WerFault.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU WerFault.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
WerFault.exepid process 1916 WerFault.exe 1916 WerFault.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
Processes:
MusNotification.exeWerFault.exedescription pid process Token: SeShutdownPrivilege 1688 MusNotification.exe Token: SeCreatePagefilePrivilege 1688 MusNotification.exe Token: SeRestorePrivilege 1916 WerFault.exe Token: SeBackupPrivilege 1916 WerFault.exe -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
WerFault.exedescription pid process target process PID 3988 wrote to memory of 3708 3988 WerFault.exe 86b1514e74faa7b799c6afb16873202fe67ef1d28081b7ac5dacd49ca60130fd.exe PID 3988 wrote to memory of 3708 3988 WerFault.exe 86b1514e74faa7b799c6afb16873202fe67ef1d28081b7ac5dacd49ca60130fd.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\86b1514e74faa7b799c6afb16873202fe67ef1d28081b7ac5dacd49ca60130fd.exe"C:\Users\Admin\AppData\Local\Temp\86b1514e74faa7b799c6afb16873202fe67ef1d28081b7ac5dacd49ca60130fd.exe"1⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3708 -s 5522⤵
- Program crash
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\MusNotification.exeC:\Windows\system32\MusNotification.exe1⤵
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3708 -ip 37081⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Suspicious use of WriteProcessMemory