Analysis
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max time kernel
90s -
max time network
94s -
platform
windows11-21h2_x64 -
resource
win11-20240802-en -
resource tags
arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system -
submitted
05-09-2024 20:48
Static task
static1
Behavioral task
behavioral1
Sample
5a6a47978b8c46c9e142c82f59f9989c9fde81960c446eb144da35adcc36b530.exe
Resource
win10v2004-20240802-en
General
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Target
5a6a47978b8c46c9e142c82f59f9989c9fde81960c446eb144da35adcc36b530.exe
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Size
400KB
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MD5
423962a98abc4f72ce92334104e829b7
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SHA1
2016d38b8b2231fddb03fd9e17fb291f05247d77
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SHA256
5a6a47978b8c46c9e142c82f59f9989c9fde81960c446eb144da35adcc36b530
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SHA512
c3963fd5e7948da7c5e28a76879f6f113cdef07c6c0abde873b2466dee35c2adc5fa7be2eda650c0d289b28444651d64767d3c5c09d44525b330e1030f08c603
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SSDEEP
6144:O0MVHdfDeX7V9TFpBx8KSX3w/fdobFq5cyX7yb/zgOEdNw:O0MVHdfiX7vrBxVWbEY/i
Malware Config
Extracted
gcleaner
80.66.75.114
45.91.200.135
Signatures
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Downloads MZ/PE file
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 10 IoCs
pid pid_target Process procid_target 3852 3748 WerFault.exe 77 4012 3748 WerFault.exe 77 1388 3748 WerFault.exe 77 4568 3748 WerFault.exe 77 3820 3748 WerFault.exe 77 2372 3748 WerFault.exe 77 2952 3748 WerFault.exe 77 1140 3748 WerFault.exe 77 4368 3748 WerFault.exe 77 1904 3748 WerFault.exe 77 -
System Location Discovery: System Language Discovery 1 TTPs 3 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 5a6a47978b8c46c9e142c82f59f9989c9fde81960c446eb144da35adcc36b530.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language taskkill.exe -
Kills process with taskkill 1 IoCs
pid Process 4304 taskkill.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4304 taskkill.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3748 wrote to memory of 2720 3748 5a6a47978b8c46c9e142c82f59f9989c9fde81960c446eb144da35adcc36b530.exe 97 PID 3748 wrote to memory of 2720 3748 5a6a47978b8c46c9e142c82f59f9989c9fde81960c446eb144da35adcc36b530.exe 97 PID 3748 wrote to memory of 2720 3748 5a6a47978b8c46c9e142c82f59f9989c9fde81960c446eb144da35adcc36b530.exe 97 PID 2720 wrote to memory of 4304 2720 cmd.exe 101 PID 2720 wrote to memory of 4304 2720 cmd.exe 101 PID 2720 wrote to memory of 4304 2720 cmd.exe 101
Processes
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C:\Users\Admin\AppData\Local\Temp\5a6a47978b8c46c9e142c82f59f9989c9fde81960c446eb144da35adcc36b530.exe"C:\Users\Admin\AppData\Local\Temp\5a6a47978b8c46c9e142c82f59f9989c9fde81960c446eb144da35adcc36b530.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3748 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3748 -s 4762⤵
- Program crash
PID:3852
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3748 -s 7962⤵
- Program crash
PID:4012
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3748 -s 8362⤵
- Program crash
PID:1388
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3748 -s 8562⤵
- Program crash
PID:4568
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3748 -s 8882⤵
- Program crash
PID:3820
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3748 -s 9762⤵
- Program crash
PID:2372
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3748 -s 11042⤵
- Program crash
PID:2952
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3748 -s 12362⤵
- Program crash
PID:1140
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3748 -s 16562⤵
- Program crash
PID:4368
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "5a6a47978b8c46c9e142c82f59f9989c9fde81960c446eb144da35adcc36b530.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\5a6a47978b8c46c9e142c82f59f9989c9fde81960c446eb144da35adcc36b530.exe" & exit2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2720 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "5a6a47978b8c46c9e142c82f59f9989c9fde81960c446eb144da35adcc36b530.exe" /f3⤵
- System Location Discovery: System Language Discovery
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4304
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3748 -s 4882⤵
- Program crash
PID:1904
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3748 -ip 37481⤵PID:948
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 352 -p 3748 -ip 37481⤵PID:1572
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3748 -ip 37481⤵PID:3876
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3748 -ip 37481⤵PID:4888
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3748 -ip 37481⤵PID:420
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3748 -ip 37481⤵PID:3836
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 3748 -ip 37481⤵PID:380
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 3748 -ip 37481⤵PID:976
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 3748 -ip 37481⤵PID:3080
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3748 -ip 37481⤵PID:2332
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1B
MD5cfcd208495d565ef66e7dff9f98764da
SHA1b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA2565feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA51231bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99