darkcomet | 9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78

General

Target

9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe
Size

283KB
MD5

6bf6d7d7e70cd737716b614f9008417b
SHA1

0c1996ccb192acd5ead43954cc984480fb18d910
SHA256

9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78
SHA512

6999c3f15f7b1c7231990f24c4dbae31ca9fb4faeddc337edfb5e6644f588ddcc103875d2746b7e3852bded61e8024cf2e5b41c1aef0ce05d5ba711c74474d33

Score

10^/10

darkcomet evasion persistence rat trojan upx

Malware Config

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Local\\Temp\\system.exe"	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe

Executes dropped EXE 1 IoCs

Processes:

system.exe

pid process

1056 system.exe
Sets file to hidden 1 TTPs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1158

pid	process
1056	system.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\system.exe	upx
\Users\Admin\AppData\Local\Temp\system.exe	upx
\Users\Admin\AppData\Local\Temp\system.exe	upx
C:\Users\Admin\AppData\Local\Temp\system.exe	upx

Deletes itself 1 IoCs

Processes:

notepad.exe

pid process

1188 notepad.exe

pid	process
1188	notepad.exe

Loads dropped DLL 2 IoCs

Processes:

9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe

pid	process
1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe
1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exesystem.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Run\system = "C:\\Users\\Admin\\AppData\\Local\\Temp\\system.exe"	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000\Software\Microsoft\Windows\CurrentVersion\Run\system = "C:\\Users\\Admin\\AppData\\Local\\Temp\\system.exe"	system.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

system.exe

pid process

1056 system.exe

pid	process
1056	system.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exesystem.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe
Token: SeSecurityPrivilege	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe
Token: SeTakeOwnershipPrivilege	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe
Token: SeLoadDriverPrivilege	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe
Token: SeSystemProfilePrivilege	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe
Token: SeSystemtimePrivilege	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe
Token: SeProfSingleProcessPrivilege	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe
Token: SeIncBasePriorityPrivilege	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe
Token: SeCreatePagefilePrivilege	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe
Token: SeBackupPrivilege	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe
Token: SeRestorePrivilege	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe
Token: SeShutdownPrivilege	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe
Token: SeDebugPrivilege	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe
Token: SeSystemEnvironmentPrivilege	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe
Token: SeChangeNotifyPrivilege	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe
Token: SeRemoteShutdownPrivilege	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe
Token: SeUndockPrivilege	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe
Token: SeManageVolumePrivilege	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe
Token: SeImpersonatePrivilege	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe
Token: SeCreateGlobalPrivilege	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe
Token: 33	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe
Token: 34	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe
Token: 35	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe
Token: SeIncreaseQuotaPrivilege	1056	system.exe
Token: SeSecurityPrivilege	1056	system.exe
Token: SeTakeOwnershipPrivilege	1056	system.exe
Token: SeLoadDriverPrivilege	1056	system.exe
Token: SeSystemProfilePrivilege	1056	system.exe
Token: SeSystemtimePrivilege	1056	system.exe
Token: SeProfSingleProcessPrivilege	1056	system.exe
Token: SeIncBasePriorityPrivilege	1056	system.exe
Token: SeCreatePagefilePrivilege	1056	system.exe
Token: SeBackupPrivilege	1056	system.exe
Token: SeRestorePrivilege	1056	system.exe
Token: SeShutdownPrivilege	1056	system.exe
Token: SeDebugPrivilege	1056	system.exe
Token: SeSystemEnvironmentPrivilege	1056	system.exe
Token: SeChangeNotifyPrivilege	1056	system.exe
Token: SeRemoteShutdownPrivilege	1056	system.exe
Token: SeUndockPrivilege	1056	system.exe
Token: SeManageVolumePrivilege	1056	system.exe
Token: SeImpersonatePrivilege	1056	system.exe
Token: SeCreateGlobalPrivilege	1056	system.exe
Token: 33	1056	system.exe
Token: 34	1056	system.exe
Token: 35	1056	system.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

system.exe

pid process

1056 system.exe

pid	process
1056	system.exe

Suspicious use of WriteProcessMemory 61 IoCs

Processes:

9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.execmd.execmd.exesystem.exe

description	pid	process	target process
PID 1668 wrote to memory of 996	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe	cmd.exe
PID 1668 wrote to memory of 996	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe	cmd.exe
PID 1668 wrote to memory of 996	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe	cmd.exe
PID 1668 wrote to memory of 996	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe	cmd.exe
PID 1668 wrote to memory of 1408	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe	cmd.exe
PID 1668 wrote to memory of 1408	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe	cmd.exe
PID 1668 wrote to memory of 1408	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe	cmd.exe
PID 1668 wrote to memory of 1408	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe	cmd.exe
PID 1668 wrote to memory of 1188	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe	notepad.exe
PID 1668 wrote to memory of 1188	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe	notepad.exe
PID 1668 wrote to memory of 1188	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe	notepad.exe
PID 1668 wrote to memory of 1188	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe	notepad.exe
PID 1408 wrote to memory of 1320	1408	cmd.exe	attrib.exe
PID 1408 wrote to memory of 1320	1408	cmd.exe	attrib.exe
PID 1408 wrote to memory of 1320	1408	cmd.exe	attrib.exe
PID 1408 wrote to memory of 1320	1408	cmd.exe	attrib.exe
PID 996 wrote to memory of 1724	996	cmd.exe	attrib.exe
PID 996 wrote to memory of 1724	996	cmd.exe	attrib.exe
PID 996 wrote to memory of 1724	996	cmd.exe	attrib.exe
PID 996 wrote to memory of 1724	996	cmd.exe	attrib.exe
PID 1668 wrote to memory of 1188	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe	notepad.exe
PID 1668 wrote to memory of 1188	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe	notepad.exe
PID 1668 wrote to memory of 1188	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe	notepad.exe
PID 1668 wrote to memory of 1188	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe	notepad.exe
PID 1668 wrote to memory of 1188	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe	notepad.exe
PID 1668 wrote to memory of 1188	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe	notepad.exe
PID 1668 wrote to memory of 1188	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe	notepad.exe
PID 1668 wrote to memory of 1188	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe	notepad.exe
PID 1668 wrote to memory of 1188	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe	notepad.exe
PID 1668 wrote to memory of 1188	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe	notepad.exe
PID 1668 wrote to memory of 1188	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe	notepad.exe
PID 1668 wrote to memory of 1188	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe	notepad.exe
PID 1668 wrote to memory of 1188	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe	notepad.exe
PID 1668 wrote to memory of 1188	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe	notepad.exe
PID 1668 wrote to memory of 1056	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe	system.exe
PID 1668 wrote to memory of 1056	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe	system.exe
PID 1668 wrote to memory of 1056	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe	system.exe
PID 1668 wrote to memory of 1056	1668	9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe	system.exe
PID 1056 wrote to memory of 1548	1056	system.exe	notepad.exe
PID 1056 wrote to memory of 1548	1056	system.exe	notepad.exe
PID 1056 wrote to memory of 1548	1056	system.exe	notepad.exe
PID 1056 wrote to memory of 1548	1056	system.exe	notepad.exe
PID 1056 wrote to memory of 1548	1056	system.exe	notepad.exe
PID 1056 wrote to memory of 1548	1056	system.exe	notepad.exe
PID 1056 wrote to memory of 1548	1056	system.exe	notepad.exe
PID 1056 wrote to memory of 1548	1056	system.exe	notepad.exe
PID 1056 wrote to memory of 1548	1056	system.exe	notepad.exe
PID 1056 wrote to memory of 1548	1056	system.exe	notepad.exe
PID 1056 wrote to memory of 1548	1056	system.exe	notepad.exe
PID 1056 wrote to memory of 1548	1056	system.exe	notepad.exe
PID 1056 wrote to memory of 1548	1056	system.exe	notepad.exe
PID 1056 wrote to memory of 1548	1056	system.exe	notepad.exe
PID 1056 wrote to memory of 1548	1056	system.exe	notepad.exe
PID 1056 wrote to memory of 1548	1056	system.exe	notepad.exe
PID 1056 wrote to memory of 1548	1056	system.exe	notepad.exe
PID 1056 wrote to memory of 1548	1056	system.exe	notepad.exe
PID 1056 wrote to memory of 1548	1056	system.exe	notepad.exe
PID 1056 wrote to memory of 1548	1056	system.exe	notepad.exe
PID 1056 wrote to memory of 1548	1056	system.exe	notepad.exe
PID 1056 wrote to memory of 1548	1056	system.exe	notepad.exe
PID 1056 wrote to memory of 1548	1056	system.exe	notepad.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

1724 attrib.exe
1320 attrib.exe

pid	process
1724	attrib.exe
1320	attrib.exe

C:\Users\Admin\AppData\Local\Temp\9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe
"C:\Users\Admin\AppData\Local\Temp\9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1668

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:996

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78.exe" +s +h
3⤵
- Views/modifies file attributes
PID:1724

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:1408

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Views/modifies file attributes
PID:1320

C:\Windows\SysWOW64\notepad.exe
notepad
2⤵
- Deletes itself
PID:1188

C:\Users\Admin\AppData\Local\Temp\system.exe
"C:\Users\Admin\AppData\Local\Temp\system.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1056

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:1548

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Hidden Files and Directories

2

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Hidden Files and Directories

2

T1158

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\system.exe
Filesize
283KB

MD5
6bf6d7d7e70cd737716b614f9008417b

SHA1
0c1996ccb192acd5ead43954cc984480fb18d910

SHA256
9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78

SHA512
6999c3f15f7b1c7231990f24c4dbae31ca9fb4faeddc337edfb5e6644f588ddcc103875d2746b7e3852bded61e8024cf2e5b41c1aef0ce05d5ba711c74474d33

Download Submit
C:\Users\Admin\AppData\Local\Temp\system.exe
Filesize
283KB

MD5
6bf6d7d7e70cd737716b614f9008417b

SHA1
0c1996ccb192acd5ead43954cc984480fb18d910

SHA256
9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78

SHA512
6999c3f15f7b1c7231990f24c4dbae31ca9fb4faeddc337edfb5e6644f588ddcc103875d2746b7e3852bded61e8024cf2e5b41c1aef0ce05d5ba711c74474d33

Download Submit
\Users\Admin\AppData\Local\Temp\system.exe
Filesize
283KB

MD5
6bf6d7d7e70cd737716b614f9008417b

SHA1
0c1996ccb192acd5ead43954cc984480fb18d910

SHA256
9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78

SHA512
6999c3f15f7b1c7231990f24c4dbae31ca9fb4faeddc337edfb5e6644f588ddcc103875d2746b7e3852bded61e8024cf2e5b41c1aef0ce05d5ba711c74474d33

Download Submit
\Users\Admin\AppData\Local\Temp\system.exe
Filesize
283KB

MD5
6bf6d7d7e70cd737716b614f9008417b

SHA1
0c1996ccb192acd5ead43954cc984480fb18d910

SHA256
9a967774e134d423ea04e8079d5236c8363422de1bd4e3e066168df9ccd54e78

SHA512
6999c3f15f7b1c7231990f24c4dbae31ca9fb4faeddc337edfb5e6644f588ddcc103875d2746b7e3852bded61e8024cf2e5b41c1aef0ce05d5ba711c74474d33

Download Submit
memory/996-55-0x0000000000000000-mapping.dmp

Download
memory/1056-91-0x0000000000000000-mapping.dmp

Download
memory/1188-57-0x0000000000000000-mapping.dmp

Download
memory/1188-60-0x00000000000C0000-0x00000000000C1000-memory.dmp

Filesize
4KB

Download
memory/1320-58-0x0000000000000000-mapping.dmp

Download
memory/1408-56-0x0000000000000000-mapping.dmp

Download
memory/1548-95-0x0000000000000000-mapping.dmp

Download
memory/1668-54-0x0000000075BF1000-0x0000000075BF3000-memory.dmp

Filesize
8KB

Download
memory/1724-59-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads