darkcomet | b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8

General

Target

b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe
Size

690KB
MD5

c0261de6f8482d655c503f1010dc8896
SHA1

093b6680099771887c91b9b7e8bd1bb9d0900cff
SHA256

b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8
SHA512

1cf854af7421f4ee673eb31de2ddd4102b58abc835a381ff4628e6bb50d313342a7656e77884eca0626d22afaaa643a32d8a0d5de1d88c16aff75bd75fcdee19

Score

10^/10

darkcomet evasion rat trojan

Malware Config

Signatures

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

Modifies firewall policy service 2 TTPs 3 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

Processes:

b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe

Modifies security service 2 TTPs 1 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

Processes:

b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4"	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe

Windows security bypass 2 TTPs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112
Disables RegEdit via registry modification
evasion
Disables Task Manager via registry modification
evasion
Sets file to hidden 1 TTPs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1158

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.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:

b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe

pid process

5100 b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe

pid	process
5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes:

b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe
Token: SeSecurityPrivilege	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe
Token: SeTakeOwnershipPrivilege	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe
Token: SeLoadDriverPrivilege	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe
Token: SeSystemProfilePrivilege	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe
Token: SeSystemtimePrivilege	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe
Token: SeProfSingleProcessPrivilege	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe
Token: SeIncBasePriorityPrivilege	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe
Token: SeCreatePagefilePrivilege	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe
Token: SeBackupPrivilege	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe
Token: SeRestorePrivilege	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe
Token: SeShutdownPrivilege	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe
Token: SeDebugPrivilege	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe
Token: SeSystemEnvironmentPrivilege	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe
Token: SeChangeNotifyPrivilege	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe
Token: SeRemoteShutdownPrivilege	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe
Token: SeUndockPrivilege	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe
Token: SeManageVolumePrivilege	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe
Token: SeImpersonatePrivilege	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe
Token: SeCreateGlobalPrivilege	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe
Token: 33	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe
Token: 34	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe
Token: 35	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe
Token: 36	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe

pid process

5100 b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe

pid	process
5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe

Suspicious use of WriteProcessMemory 34 IoCs

Processes:

b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.execmd.execmd.exe

description	pid	process	target process
PID 5100 wrote to memory of 1112	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe	cmd.exe
PID 5100 wrote to memory of 1112	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe	cmd.exe
PID 5100 wrote to memory of 1112	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe	cmd.exe
PID 5100 wrote to memory of 1180	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe	cmd.exe
PID 5100 wrote to memory of 1180	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe	cmd.exe
PID 5100 wrote to memory of 1180	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe	cmd.exe
PID 5100 wrote to memory of 4788	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe	notepad.exe
PID 5100 wrote to memory of 4788	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe	notepad.exe
PID 5100 wrote to memory of 4788	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe	notepad.exe
PID 1180 wrote to memory of 2740	1180	cmd.exe	attrib.exe
PID 1180 wrote to memory of 2740	1180	cmd.exe	attrib.exe
PID 1180 wrote to memory of 2740	1180	cmd.exe	attrib.exe
PID 1112 wrote to memory of 1816	1112	cmd.exe	attrib.exe
PID 1112 wrote to memory of 1816	1112	cmd.exe	attrib.exe
PID 1112 wrote to memory of 1816	1112	cmd.exe	attrib.exe
PID 5100 wrote to memory of 4788	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe	notepad.exe
PID 5100 wrote to memory of 4788	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe	notepad.exe
PID 5100 wrote to memory of 4788	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe	notepad.exe
PID 5100 wrote to memory of 4788	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe	notepad.exe
PID 5100 wrote to memory of 4788	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe	notepad.exe
PID 5100 wrote to memory of 4788	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe	notepad.exe
PID 5100 wrote to memory of 4788	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe	notepad.exe
PID 5100 wrote to memory of 4788	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe	notepad.exe
PID 5100 wrote to memory of 4788	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe	notepad.exe
PID 5100 wrote to memory of 4788	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe	notepad.exe
PID 5100 wrote to memory of 4788	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe	notepad.exe
PID 5100 wrote to memory of 4788	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe	notepad.exe
PID 5100 wrote to memory of 4788	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe	notepad.exe
PID 5100 wrote to memory of 4788	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe	notepad.exe
PID 5100 wrote to memory of 4788	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe	notepad.exe
PID 5100 wrote to memory of 4788	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe	notepad.exe
PID 5100 wrote to memory of 4788	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe	notepad.exe
PID 5100 wrote to memory of 4788	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe	notepad.exe
PID 5100 wrote to memory of 4788	5100	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe	notepad.exe

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

Processes:

b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern\NoControlPanel = "1"	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern	b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

2740 attrib.exe
1816 attrib.exe

pid	process
2740	attrib.exe
1816	attrib.exe

C:\Users\Admin\AppData\Local\Temp\b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe
"C:\Users\Admin\AppData\Local\Temp\b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe"
1⤵
- Modifies firewall policy service
- Modifies security service
- Checks computer location settings
- Windows security modification
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:5100

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:1112

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\b18abeeb054a9f0bb83ec277c93e61b5e00d25a4edc80b1dff39fe1c4de2a5b8.exe" +s +h
3⤵
- Views/modifies file attributes
PID:1816

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:1180