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Analysis
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max time kernel
91s -
max time network
152s -
platform
windows11-21h2_x64 -
resource
win11-20240802-en -
resource tags
arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system -
submitted
11/09/2024, 20:28
Static task
static1
Behavioral task
behavioral1
Sample
bf0c7be4aadb86b7edc3bb943e3e4c266388e5cd0c25f5159035aae25512162c.exe
Resource
win10v2004-20240802-en
General
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Target
bf0c7be4aadb86b7edc3bb943e3e4c266388e5cd0c25f5159035aae25512162c.exe
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Size
422KB
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MD5
9de5bc01185d8d932970172bfbc23b6e
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SHA1
036651752b3dbeb1464bfe2552af921b5d150a07
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SHA256
bf0c7be4aadb86b7edc3bb943e3e4c266388e5cd0c25f5159035aae25512162c
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SHA512
051962dece9db14b3b714904f365ff4a29f97158aebb50085d26dbd19a2c26a1745a47f11f0a22cfae8a3b667d06af2ba434bb01e26f0f980dc66da3a84a5636
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SSDEEP
6144:FPY1SX+xv/QjGWmYqXiNSb5jzFUrBiJU0X4FbaqqLsEqydUXD+PSHP6B:i17/0gMNSNjzFQiC0XVxLsEqxXxHi
Malware Config
Extracted
gcleaner
80.66.75.114
Signatures
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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 8 IoCs
pid pid_target Process procid_target 1676 2032 WerFault.exe 79 1664 2032 WerFault.exe 79 2884 2032 WerFault.exe 79 1992 2032 WerFault.exe 79 4040 2032 WerFault.exe 79 4136 2032 WerFault.exe 79 2120 2032 WerFault.exe 79 5116 2032 WerFault.exe 79 -
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 taskkill.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language bf0c7be4aadb86b7edc3bb943e3e4c266388e5cd0c25f5159035aae25512162c.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Kills process with taskkill 1 IoCs
pid Process 1340 taskkill.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1340 taskkill.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2032 wrote to memory of 4240 2032 bf0c7be4aadb86b7edc3bb943e3e4c266388e5cd0c25f5159035aae25512162c.exe 97 PID 2032 wrote to memory of 4240 2032 bf0c7be4aadb86b7edc3bb943e3e4c266388e5cd0c25f5159035aae25512162c.exe 97 PID 2032 wrote to memory of 4240 2032 bf0c7be4aadb86b7edc3bb943e3e4c266388e5cd0c25f5159035aae25512162c.exe 97 PID 4240 wrote to memory of 1340 4240 cmd.exe 101 PID 4240 wrote to memory of 1340 4240 cmd.exe 101 PID 4240 wrote to memory of 1340 4240 cmd.exe 101
Processes
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C:\Users\Admin\AppData\Local\Temp\bf0c7be4aadb86b7edc3bb943e3e4c266388e5cd0c25f5159035aae25512162c.exe"C:\Users\Admin\AppData\Local\Temp\bf0c7be4aadb86b7edc3bb943e3e4c266388e5cd0c25f5159035aae25512162c.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2032 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2032 -s 7722⤵
- Program crash
PID:1676
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2032 -s 7922⤵
- Program crash
PID:1664
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2032 -s 8282⤵
- Program crash
PID:2884
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2032 -s 8642⤵
- Program crash
PID:1992
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2032 -s 9522⤵
- Program crash
PID:4040
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2032 -s 10802⤵
- Program crash
PID:4136
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2032 -s 14282⤵
- Program crash
PID:2120
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "bf0c7be4aadb86b7edc3bb943e3e4c266388e5cd0c25f5159035aae25512162c.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\bf0c7be4aadb86b7edc3bb943e3e4c266388e5cd0c25f5159035aae25512162c.exe" & exit2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4240 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "bf0c7be4aadb86b7edc3bb943e3e4c266388e5cd0c25f5159035aae25512162c.exe" /f3⤵
- System Location Discovery: System Language Discovery
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:1340
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2032 -s 13362⤵
- Program crash
PID:5116
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2032 -ip 20321⤵PID:4712
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2032 -ip 20321⤵PID:1296
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 2032 -ip 20321⤵PID:3032
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 2032 -ip 20321⤵PID:776
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 2032 -ip 20321⤵PID:2880
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 2032 -ip 20321⤵PID:1544
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 484 -p 2032 -ip 20321⤵PID:4124
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2032 -ip 20321⤵PID:1500
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1B
MD5cfcd208495d565ef66e7dff9f98764da
SHA1b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA2565feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA51231bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99