Analysis
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max time kernel
195s -
max time network
258s -
platform
windows10-1703_x64 -
resource
win10-20240404-en -
resource tags
arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system -
submitted
05-09-2024 22:35
Static task
static1
Behavioral task
behavioral1
Sample
37c8502f5be6243de18cb2f92e2f88d72c14cd7bffe96033319f2be9bed1baaa.exe
Resource
win7-20240903-en
General
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Target
37c8502f5be6243de18cb2f92e2f88d72c14cd7bffe96033319f2be9bed1baaa.exe
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Size
272KB
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MD5
49a530d2755b919dee5bdd26d931925c
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SHA1
59440163bfd8c6af7e61a0b19f86a91e99c01d98
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SHA256
37c8502f5be6243de18cb2f92e2f88d72c14cd7bffe96033319f2be9bed1baaa
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SHA512
79c89aac0dc0f40fde34e7228554982312ab10b04cfcedead34ace4a9c366aa027251a60c73a1815c3770fd87b2bc49b5c89ecfcc3e7815222bba8bd1a3ceed7
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SSDEEP
6144:+DfD5BQnup57iPyrbaM33dAq6EuA72Igq:+7Qnu+yrbaMD6EuA7
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 212 4384 WerFault.exe 72 2668 4384 WerFault.exe 72 3376 4384 WerFault.exe 72 3424 4384 WerFault.exe 72 776 4384 WerFault.exe 72 4748 4384 WerFault.exe 72 4844 4384 WerFault.exe 72 1832 4384 WerFault.exe 72 -
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 37c8502f5be6243de18cb2f92e2f88d72c14cd7bffe96033319f2be9bed1baaa.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 4172 taskkill.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4172 taskkill.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4384 wrote to memory of 4124 4384 37c8502f5be6243de18cb2f92e2f88d72c14cd7bffe96033319f2be9bed1baaa.exe 82 PID 4384 wrote to memory of 4124 4384 37c8502f5be6243de18cb2f92e2f88d72c14cd7bffe96033319f2be9bed1baaa.exe 82 PID 4384 wrote to memory of 4124 4384 37c8502f5be6243de18cb2f92e2f88d72c14cd7bffe96033319f2be9bed1baaa.exe 82 PID 4124 wrote to memory of 4172 4124 cmd.exe 84 PID 4124 wrote to memory of 4172 4124 cmd.exe 84 PID 4124 wrote to memory of 4172 4124 cmd.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\37c8502f5be6243de18cb2f92e2f88d72c14cd7bffe96033319f2be9bed1baaa.exe"C:\Users\Admin\AppData\Local\Temp\37c8502f5be6243de18cb2f92e2f88d72c14cd7bffe96033319f2be9bed1baaa.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4384 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 7642⤵
- Program crash
PID:212
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 7762⤵
- Program crash
PID:2668
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 8442⤵
- Program crash
PID:3376
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 9522⤵
- Program crash
PID:3424
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 10002⤵
- Program crash
PID:776
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 11162⤵
- Program crash
PID:4748
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 11282⤵
- Program crash
PID:4844
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4384 -s 14602⤵
- Program crash
PID:1832
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "37c8502f5be6243de18cb2f92e2f88d72c14cd7bffe96033319f2be9bed1baaa.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\37c8502f5be6243de18cb2f92e2f88d72c14cd7bffe96033319f2be9bed1baaa.exe" & exit2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4124 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "37c8502f5be6243de18cb2f92e2f88d72c14cd7bffe96033319f2be9bed1baaa.exe" /f3⤵
- System Location Discovery: System Language Discovery
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4172
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1B
MD5cfcd208495d565ef66e7dff9f98764da
SHA1b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA2565feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA51231bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99