Analysis
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max time kernel
180s -
max time network
190s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
27/12/2023, 02:39
Static task
static1
Behavioral task
behavioral1
Sample
9d9a6bece14d2df16d91b125d52f94f2.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
9d9a6bece14d2df16d91b125d52f94f2.exe
Resource
win10v2004-20231215-en
General
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Target
9d9a6bece14d2df16d91b125d52f94f2.exe
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Size
87KB
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MD5
9d9a6bece14d2df16d91b125d52f94f2
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SHA1
eda773c16f5210a90b9ade09ca0753bd31a0308b
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SHA256
5540c8ac959e7c8fe851e4cf20eb0c6fedfcb935bbd55d58bec8a237926adbef
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SHA512
70aa55bb8e9fa09aaf8335e5dce1bbd79dc1f4f39b7b0fd1f872dbdd7bd0b725b8949a62002f7eded1731116c718369f129878fb26ea832b5cacfa5d76c68323
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SSDEEP
1536:n/vQa59DqqI94023pLqRuSijxODUzXnE99apJTcvq+kO0w:nV3G40AJqkjxOF9c3cy+kC
Malware Config
Signatures
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Detect XtremeRAT payload 7 IoCs
resource yara_rule behavioral2/memory/1992-9-0x0000000010000000-0x000000001004D000-memory.dmp family_xtremerat behavioral2/memory/1992-10-0x0000000010000000-0x000000001004D000-memory.dmp family_xtremerat behavioral2/memory/3480-11-0x0000000010000000-0x000000001004D000-memory.dmp family_xtremerat behavioral2/memory/1992-14-0x0000000010000000-0x000000001004D000-memory.dmp family_xtremerat behavioral2/memory/1992-15-0x0000000010000000-0x000000001004D000-memory.dmp family_xtremerat behavioral2/memory/3480-16-0x0000000010000000-0x000000001004D000-memory.dmp family_xtremerat behavioral2/memory/1992-17-0x0000000010000000-0x000000001004D000-memory.dmp family_xtremerat -
XtremeRAT
The XtremeRAT was developed by xtremecoder and has been available since at least 2010, and written in Delphi.
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Modifies Installed Components in the registry 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Active Setup\Installed Components\{H608055G-BY2G-3G61-SA6I-5GOV523G1711} 9d9a6bece14d2df16d91b125d52f94f2.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{H608055G-BY2G-3G61-SA6I-5GOV523G1711}\StubPath = "C:\\Windows\\trt\\efc.exe restart" 9d9a6bece14d2df16d91b125d52f94f2.exe -
resource yara_rule behavioral2/memory/1992-3-0x0000000010000000-0x000000001004D000-memory.dmp upx behavioral2/memory/1992-6-0x0000000010000000-0x000000001004D000-memory.dmp upx behavioral2/memory/1992-9-0x0000000010000000-0x000000001004D000-memory.dmp upx behavioral2/memory/1992-10-0x0000000010000000-0x000000001004D000-memory.dmp upx behavioral2/memory/3480-11-0x0000000010000000-0x000000001004D000-memory.dmp upx behavioral2/memory/1992-14-0x0000000010000000-0x000000001004D000-memory.dmp upx behavioral2/memory/1992-15-0x0000000010000000-0x000000001004D000-memory.dmp upx behavioral2/memory/3480-16-0x0000000010000000-0x000000001004D000-memory.dmp upx behavioral2/memory/1992-17-0x0000000010000000-0x000000001004D000-memory.dmp upx -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\HKCU = "C:\\Windows\\trt\\efc.exe" 9d9a6bece14d2df16d91b125d52f94f2.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\HKLM = "C:\\Windows\\trt\\efc.exe" 9d9a6bece14d2df16d91b125d52f94f2.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 448 set thread context of 1992 448 9d9a6bece14d2df16d91b125d52f94f2.exe 94 -
Drops file in Windows directory 3 IoCs
description ioc Process File opened for modification C:\Windows\trt\efc.exe 9d9a6bece14d2df16d91b125d52f94f2.exe File created C:\Windows\trt\efc.exe 9d9a6bece14d2df16d91b125d52f94f2.exe File opened for modification C:\Windows\trt\ 9d9a6bece14d2df16d91b125d52f94f2.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 2 IoCs
pid pid_target Process procid_target 3220 3480 WerFault.exe 95 3968 3480 WerFault.exe 95 -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 448 9d9a6bece14d2df16d91b125d52f94f2.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1992 9d9a6bece14d2df16d91b125d52f94f2.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 448 wrote to memory of 1992 448 9d9a6bece14d2df16d91b125d52f94f2.exe 94 PID 448 wrote to memory of 1992 448 9d9a6bece14d2df16d91b125d52f94f2.exe 94 PID 448 wrote to memory of 1992 448 9d9a6bece14d2df16d91b125d52f94f2.exe 94 PID 448 wrote to memory of 1992 448 9d9a6bece14d2df16d91b125d52f94f2.exe 94 PID 448 wrote to memory of 1992 448 9d9a6bece14d2df16d91b125d52f94f2.exe 94 PID 448 wrote to memory of 1992 448 9d9a6bece14d2df16d91b125d52f94f2.exe 94 PID 448 wrote to memory of 1992 448 9d9a6bece14d2df16d91b125d52f94f2.exe 94 PID 448 wrote to memory of 1992 448 9d9a6bece14d2df16d91b125d52f94f2.exe 94 PID 1992 wrote to memory of 3480 1992 9d9a6bece14d2df16d91b125d52f94f2.exe 95 PID 1992 wrote to memory of 3480 1992 9d9a6bece14d2df16d91b125d52f94f2.exe 95 PID 1992 wrote to memory of 3480 1992 9d9a6bece14d2df16d91b125d52f94f2.exe 95 PID 1992 wrote to memory of 3480 1992 9d9a6bece14d2df16d91b125d52f94f2.exe 95
Processes
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C:\Users\Admin\AppData\Local\Temp\9d9a6bece14d2df16d91b125d52f94f2.exe"C:\Users\Admin\AppData\Local\Temp\9d9a6bece14d2df16d91b125d52f94f2.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:448 -
C:\Users\Admin\AppData\Local\Temp\9d9a6bece14d2df16d91b125d52f94f2.exe"C:\Users\Admin\AppData\Local\Temp\9d9a6bece14d2df16d91b125d52f94f2.exe"2⤵
- Modifies Installed Components in the registry
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1992 -
C:\Windows\SysWOW64\svchost.exesvchost.exe3⤵PID:3480
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3480 -s 4884⤵
- Program crash
PID:3220
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3480 -s 4964⤵
- Program crash
PID:3968
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3480 -ip 34801⤵PID:1752
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3480 -ip 34801⤵PID:5032