Analysis
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max time kernel
140s -
max time network
139s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220112 -
submitted
18-01-2022 03:21
Static task
static1
General
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Target
0b11c8b1a563b6178e27fe323665aca06a679f98c4d041fde2767caa3f173aab.exe
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Size
326KB
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MD5
bc3fd01db98ef7790bb357c09ea80fea
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SHA1
d69cd37c40082cabb4cc51c61e9ae1ff5d2ea13c
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SHA256
0b11c8b1a563b6178e27fe323665aca06a679f98c4d041fde2767caa3f173aab
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SHA512
cc98007abba10f067d4a92b48eb787220dfc31eada6d9635a50ec463357580c9bcd74d364ec3484efdf0871fae95a989fae16ee563ef21440afd4d9f9a021e7e
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 956 created 1492 956 WerFault.exe 0b11c8b1a563b6178e27fe323665aca06a679f98c4d041fde2767caa3f173aab.exe -
Arkei Stealer Payload 2 IoCs
Processes:
resource yara_rule behavioral1/memory/1492-131-0x0000000000460000-0x000000000047C000-memory.dmp family_arkei behavioral1/memory/1492-132-0x0000000000400000-0x000000000045A000-memory.dmp family_arkei -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 4088 1492 WerFault.exe 0b11c8b1a563b6178e27fe323665aca06a679f98c4d041fde2767caa3f173aab.exe -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
WerFault.exedescription ioc process 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 4088 WerFault.exe 4088 WerFault.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
Processes:
svchost.exeWerFault.exedescription pid process Token: SeSystemtimePrivilege 3884 svchost.exe Token: SeSystemtimePrivilege 3884 svchost.exe Token: SeIncBasePriorityPrivilege 3884 svchost.exe Token: SeRestorePrivilege 4088 WerFault.exe Token: SeBackupPrivilege 4088 WerFault.exe -
Suspicious use of WriteProcessMemory 2 IoCs
Processes:
WerFault.exedescription pid process target process PID 956 wrote to memory of 1492 956 WerFault.exe 0b11c8b1a563b6178e27fe323665aca06a679f98c4d041fde2767caa3f173aab.exe PID 956 wrote to memory of 1492 956 WerFault.exe 0b11c8b1a563b6178e27fe323665aca06a679f98c4d041fde2767caa3f173aab.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\0b11c8b1a563b6178e27fe323665aca06a679f98c4d041fde2767caa3f173aab.exe"C:\Users\Admin\AppData\Local\Temp\0b11c8b1a563b6178e27fe323665aca06a679f98c4d041fde2767caa3f173aab.exe"1⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1492 -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\svchost.exeC:\Windows\system32\svchost.exe -k LocalService1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 1492 -ip 14921⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Suspicious use of WriteProcessMemory