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Analysis
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max time kernel
118s -
max time network
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platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
02/01/2025, 01:02
Behavioral task
behavioral1
Sample
28077b9fc0a3c230acec87246ba45ce6ec5037a26c304bd0160f1d489344faf2.exe
Resource
win7-20241010-en
General
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Target
28077b9fc0a3c230acec87246ba45ce6ec5037a26c304bd0160f1d489344faf2.exe
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Size
559KB
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MD5
36bc17eaa400cce566f480f8415c9305
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SHA1
be0e76f8dbaba413810135f7b99f75d68d6e1158
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SHA256
28077b9fc0a3c230acec87246ba45ce6ec5037a26c304bd0160f1d489344faf2
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SHA512
954ce916fc83570dd7a496146c31cf56ae99036216838d7269b68b96c88452b60fe7a2f3a49a783c93a581a6f1e44ca6c3452dcade8cd4305d2e2b87fd8dba74
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SSDEEP
12288:x+xOrozCCYaCphtIYJb6lzOqPpFOblme0pLLsbii9cWDeO7HtoNmKzoSw:COEzCFaCpAYJbwzOqPUlvOsmi9c8Sle
Malware Config
Signatures
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Darkcomet family
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Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate mcsft.exe -
Executes dropped EXE 2 IoCs
pid Process 2768 mcsft.exe 2232 mcsft.exe -
Loads dropped DLL 5 IoCs
pid Process 2772 28077b9fc0a3c230acec87246ba45ce6ec5037a26c304bd0160f1d489344faf2.exe 2772 28077b9fc0a3c230acec87246ba45ce6ec5037a26c304bd0160f1d489344faf2.exe 2772 28077b9fc0a3c230acec87246ba45ce6ec5037a26c304bd0160f1d489344faf2.exe 2772 28077b9fc0a3c230acec87246ba45ce6ec5037a26c304bd0160f1d489344faf2.exe 2772 28077b9fc0a3c230acec87246ba45ce6ec5037a26c304bd0160f1d489344faf2.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\Mcrosoft = "C:\\Users\\Admin\\AppData\\Roaming\\mcsft.exe" reg.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2768 set thread context of 2232 2768 mcsft.exe 34 -
resource yara_rule behavioral1/memory/2772-0-0x0000000000400000-0x00000000007C8000-memory.dmp upx behavioral1/files/0x0014000000015e9a-27.dat upx behavioral1/memory/2768-46-0x0000000000400000-0x00000000007C8000-memory.dmp upx behavioral1/memory/2772-48-0x0000000000400000-0x00000000007C8000-memory.dmp upx behavioral1/memory/2232-52-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral1/memory/2232-54-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral1/memory/2232-55-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral1/memory/2768-57-0x0000000000400000-0x00000000007C8000-memory.dmp upx behavioral1/memory/2232-58-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral1/memory/2232-59-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral1/memory/2232-60-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral1/memory/2232-61-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral1/memory/2232-64-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral1/memory/2232-62-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral1/memory/2232-63-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral1/memory/2232-65-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral1/memory/2232-67-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral1/memory/2232-69-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral1/memory/2232-71-0x0000000000400000-0x00000000004B5000-memory.dmp upx behavioral1/memory/2232-73-0x0000000000400000-0x00000000004B5000-memory.dmp upx -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 5 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 mcsft.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language mcsft.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 28077b9fc0a3c230acec87246ba45ce6ec5037a26c304bd0160f1d489344faf2.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language reg.exe -
Checks processor information in registry 2 TTPs 4 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 mcsft.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString mcsft.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier mcsft.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier mcsft.exe -
Enumerates system info in registry 2 TTPs 1 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier mcsft.exe -
Suspicious use of AdjustPrivilegeToken 23 IoCs
description pid Process Token: SeIncreaseQuotaPrivilege 2232 mcsft.exe Token: SeSecurityPrivilege 2232 mcsft.exe Token: SeTakeOwnershipPrivilege 2232 mcsft.exe Token: SeLoadDriverPrivilege 2232 mcsft.exe Token: SeSystemProfilePrivilege 2232 mcsft.exe Token: SeSystemtimePrivilege 2232 mcsft.exe Token: SeProfSingleProcessPrivilege 2232 mcsft.exe Token: SeIncBasePriorityPrivilege 2232 mcsft.exe Token: SeCreatePagefilePrivilege 2232 mcsft.exe Token: SeBackupPrivilege 2232 mcsft.exe Token: SeRestorePrivilege 2232 mcsft.exe Token: SeShutdownPrivilege 2232 mcsft.exe Token: SeDebugPrivilege 2232 mcsft.exe Token: SeSystemEnvironmentPrivilege 2232 mcsft.exe Token: SeChangeNotifyPrivilege 2232 mcsft.exe Token: SeRemoteShutdownPrivilege 2232 mcsft.exe Token: SeUndockPrivilege 2232 mcsft.exe Token: SeManageVolumePrivilege 2232 mcsft.exe Token: SeImpersonatePrivilege 2232 mcsft.exe Token: SeCreateGlobalPrivilege 2232 mcsft.exe Token: 33 2232 mcsft.exe Token: 34 2232 mcsft.exe Token: 35 2232 mcsft.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 2772 28077b9fc0a3c230acec87246ba45ce6ec5037a26c304bd0160f1d489344faf2.exe 2768 mcsft.exe 2232 mcsft.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 2772 wrote to memory of 2764 2772 28077b9fc0a3c230acec87246ba45ce6ec5037a26c304bd0160f1d489344faf2.exe 30 PID 2772 wrote to memory of 2764 2772 28077b9fc0a3c230acec87246ba45ce6ec5037a26c304bd0160f1d489344faf2.exe 30 PID 2772 wrote to memory of 2764 2772 28077b9fc0a3c230acec87246ba45ce6ec5037a26c304bd0160f1d489344faf2.exe 30 PID 2772 wrote to memory of 2764 2772 28077b9fc0a3c230acec87246ba45ce6ec5037a26c304bd0160f1d489344faf2.exe 30 PID 2764 wrote to memory of 2960 2764 cmd.exe 32 PID 2764 wrote to memory of 2960 2764 cmd.exe 32 PID 2764 wrote to memory of 2960 2764 cmd.exe 32 PID 2764 wrote to memory of 2960 2764 cmd.exe 32 PID 2772 wrote to memory of 2768 2772 28077b9fc0a3c230acec87246ba45ce6ec5037a26c304bd0160f1d489344faf2.exe 33 PID 2772 wrote to memory of 2768 2772 28077b9fc0a3c230acec87246ba45ce6ec5037a26c304bd0160f1d489344faf2.exe 33 PID 2772 wrote to memory of 2768 2772 28077b9fc0a3c230acec87246ba45ce6ec5037a26c304bd0160f1d489344faf2.exe 33 PID 2772 wrote to memory of 2768 2772 28077b9fc0a3c230acec87246ba45ce6ec5037a26c304bd0160f1d489344faf2.exe 33 PID 2768 wrote to memory of 2232 2768 mcsft.exe 34 PID 2768 wrote to memory of 2232 2768 mcsft.exe 34 PID 2768 wrote to memory of 2232 2768 mcsft.exe 34 PID 2768 wrote to memory of 2232 2768 mcsft.exe 34 PID 2768 wrote to memory of 2232 2768 mcsft.exe 34 PID 2768 wrote to memory of 2232 2768 mcsft.exe 34 PID 2768 wrote to memory of 2232 2768 mcsft.exe 34 PID 2768 wrote to memory of 2232 2768 mcsft.exe 34 PID 2768 wrote to memory of 2232 2768 mcsft.exe 34
Processes
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C:\Users\Admin\AppData\Local\Temp\28077b9fc0a3c230acec87246ba45ce6ec5037a26c304bd0160f1d489344faf2.exe"C:\Users\Admin\AppData\Local\Temp\28077b9fc0a3c230acec87246ba45ce6ec5037a26c304bd0160f1d489344faf2.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2772 -
C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\PzgXC.bat" "2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2764 -
C:\Windows\SysWOW64\reg.exeREG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Mcrosoft" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\mcsft.exe" /f3⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
PID:2960
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C:\Users\Admin\AppData\Roaming\mcsft.exe"C:\Users\Admin\AppData\Roaming\mcsft.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2768 -
C:\Users\Admin\AppData\Roaming\mcsft.exeC:\Users\Admin\AppData\Roaming\mcsft.exe3⤵
- Checks BIOS information in registry
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2232
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
135B
MD5a5feca573884d76f559b996d45e8ad9a
SHA10e81a993f3af4e31d60653dc2513186f0495f1c8
SHA256c98e20d46d6465febb5d29cfab51241521ea5d6cd621f5e18b9b7d6fbfac3f0f
SHA512a9239648b5f15eac4d4151b6e1bdc81065eeaeb101404c2a0126f03bc87f1e6a57206bfa07a44379e9d3bba889e4497a9991ff41fb109099b01512df3dc3cbda
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Filesize
559KB
MD5c8ca06c7ba2a52715c01dcf3343c05f9
SHA1960412be150559148f83144eed41b03965f260e2
SHA2561cae65db333b0d44d7185fef931d6200a307196c32bd493c8bcbefaf361ac1dd
SHA5124b7e29e8b04b116327b1d47aae8ec3d7f75b1d77e1293376e21ba26b729a300201c8c481c1387ad7b9661b8ad3c088319492dcccd63935f3a0eb77696236763c