darkcomet | 45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae

General

Target

45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe
Size

660KB
MD5

0092838bfe137c5b3cb81384cc752a10
SHA1

58135f256464a3b4fc82473244f45da8dadd0048
SHA256

45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae
SHA512

452aa9eab9363ce4cc0d763632389496905aa46def3d2338831175d6a90f1466bf96914b759b18892e00933db6b83bcbdae266f515bf6259ce88905784323155
SSDEEP

12288:0XhpvNWw276S/DuoeFcfbmiJ99VPhYR5MTSHvLenELrWv1lZw4JuMkMh/fy452UG:inAw2WWeFcfbP9VPSPMTSPL/rWvzq4JW

Score

10^/10

darkcomet tim evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Tim

C2

trollo.zapto.org:1605

Mutex

DC_MUTEX-4CC7RLB

Attributes

InstallPath
svhost\svhost.exe
gencode
iKWKGxcC6jL6
install
true
offline_keylogger
true
persistence
false
reg_key
svhost

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:

45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.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\\svhost\\svhost.exe"	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe

Modifies firewall policy service 2 TTPs 3 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

Processes:

svhost.exe

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

Modifies security service 2 TTPs 1 IoCs
evasion

Modify Registry
T1112

Modify Existing Service
T1031

Processes:

svhost.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4" svhost.exe

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

Windows security bypass 2 TTPs 2 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

svhost.exe

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

Disables RegEdit via registry modification 1 IoCs

evasion

Processes:

svhost.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	svhost.exe

Executes dropped EXE 1 IoCs

Processes:

svhost.exe

pid process

4892 svhost.exe
Sets file to hidden 1 TTPs 2 IoCs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

4956 attrib.exe
4980 attrib.exe

pid	process
4892	svhost.exe

pid	process
4956	attrib.exe
4980	attrib.exe

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:

45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

svhost.exe

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svhost = "C:\\Users\\Admin\\AppData\\Local\\Temp\\svhost\\svhost.exe"	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

Processes:

45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

svhost.exe

pid process

4892 svhost.exe

pid	process
4892	svhost.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exesvhost.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	4768	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe
Token: SeSecurityPrivilege	4768	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe
Token: SeTakeOwnershipPrivilege	4768	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe
Token: SeLoadDriverPrivilege	4768	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe
Token: SeSystemProfilePrivilege	4768	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe
Token: SeSystemtimePrivilege	4768	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe
Token: SeProfSingleProcessPrivilege	4768	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe
Token: SeIncBasePriorityPrivilege	4768	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe
Token: SeCreatePagefilePrivilege	4768	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe
Token: SeBackupPrivilege	4768	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe
Token: SeRestorePrivilege	4768	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe
Token: SeShutdownPrivilege	4768	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe
Token: SeDebugPrivilege	4768	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe
Token: SeSystemEnvironmentPrivilege	4768	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe
Token: SeChangeNotifyPrivilege	4768	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe
Token: SeRemoteShutdownPrivilege	4768	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe
Token: SeUndockPrivilege	4768	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe
Token: SeManageVolumePrivilege	4768	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe
Token: SeImpersonatePrivilege	4768	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe
Token: SeCreateGlobalPrivilege	4768	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe
Token: 33	4768	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe
Token: 34	4768	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe
Token: 35	4768	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe
Token: 36	4768	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe
Token: SeIncreaseQuotaPrivilege	4892	svhost.exe
Token: SeSecurityPrivilege	4892	svhost.exe
Token: SeTakeOwnershipPrivilege	4892	svhost.exe
Token: SeLoadDriverPrivilege	4892	svhost.exe
Token: SeSystemProfilePrivilege	4892	svhost.exe
Token: SeSystemtimePrivilege	4892	svhost.exe
Token: SeProfSingleProcessPrivilege	4892	svhost.exe
Token: SeIncBasePriorityPrivilege	4892	svhost.exe
Token: SeCreatePagefilePrivilege	4892	svhost.exe
Token: SeBackupPrivilege	4892	svhost.exe
Token: SeRestorePrivilege	4892	svhost.exe
Token: SeShutdownPrivilege	4892	svhost.exe
Token: SeDebugPrivilege	4892	svhost.exe
Token: SeSystemEnvironmentPrivilege	4892	svhost.exe
Token: SeChangeNotifyPrivilege	4892	svhost.exe
Token: SeRemoteShutdownPrivilege	4892	svhost.exe
Token: SeUndockPrivilege	4892	svhost.exe
Token: SeManageVolumePrivilege	4892	svhost.exe
Token: SeImpersonatePrivilege	4892	svhost.exe
Token: SeCreateGlobalPrivilege	4892	svhost.exe
Token: 33	4892	svhost.exe
Token: 34	4892	svhost.exe
Token: 35	4892	svhost.exe
Token: 36	4892	svhost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

svhost.exe

pid process

4892 svhost.exe

pid	process
4892	svhost.exe

Suspicious use of WriteProcessMemory 37 IoCs

Processes:

45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.execmd.execmd.exesvhost.exe

description	pid	process	target process
PID 4768 wrote to memory of 2928	4768	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe	cmd.exe
PID 4768 wrote to memory of 2928	4768	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe	cmd.exe
PID 4768 wrote to memory of 2928	4768	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe	cmd.exe
PID 4768 wrote to memory of 4460	4768	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe	cmd.exe
PID 4768 wrote to memory of 4460	4768	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe	cmd.exe
PID 4768 wrote to memory of 4460	4768	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe	cmd.exe
PID 2928 wrote to memory of 4956	2928	cmd.exe	attrib.exe
PID 2928 wrote to memory of 4956	2928	cmd.exe	attrib.exe
PID 2928 wrote to memory of 4956	2928	cmd.exe	attrib.exe
PID 4460 wrote to memory of 4980	4460	cmd.exe	attrib.exe
PID 4460 wrote to memory of 4980	4460	cmd.exe	attrib.exe
PID 4460 wrote to memory of 4980	4460	cmd.exe	attrib.exe
PID 4768 wrote to memory of 4892	4768	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe	svhost.exe
PID 4768 wrote to memory of 4892	4768	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe	svhost.exe
PID 4768 wrote to memory of 4892	4768	45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe	svhost.exe
PID 4892 wrote to memory of 3584	4892	svhost.exe	notepad.exe
PID 4892 wrote to memory of 3584	4892	svhost.exe	notepad.exe
PID 4892 wrote to memory of 3584	4892	svhost.exe	notepad.exe
PID 4892 wrote to memory of 3584	4892	svhost.exe	notepad.exe
PID 4892 wrote to memory of 3584	4892	svhost.exe	notepad.exe
PID 4892 wrote to memory of 3584	4892	svhost.exe	notepad.exe
PID 4892 wrote to memory of 3584	4892	svhost.exe	notepad.exe
PID 4892 wrote to memory of 3584	4892	svhost.exe	notepad.exe
PID 4892 wrote to memory of 3584	4892	svhost.exe	notepad.exe
PID 4892 wrote to memory of 3584	4892	svhost.exe	notepad.exe
PID 4892 wrote to memory of 3584	4892	svhost.exe	notepad.exe
PID 4892 wrote to memory of 3584	4892	svhost.exe	notepad.exe
PID 4892 wrote to memory of 3584	4892	svhost.exe	notepad.exe
PID 4892 wrote to memory of 3584	4892	svhost.exe	notepad.exe
PID 4892 wrote to memory of 3584	4892	svhost.exe	notepad.exe
PID 4892 wrote to memory of 3584	4892	svhost.exe	notepad.exe
PID 4892 wrote to memory of 3584	4892	svhost.exe	notepad.exe
PID 4892 wrote to memory of 3584	4892	svhost.exe	notepad.exe
PID 4892 wrote to memory of 3584	4892	svhost.exe	notepad.exe
PID 4892 wrote to memory of 3584	4892	svhost.exe	notepad.exe
PID 4892 wrote to memory of 3584	4892	svhost.exe	notepad.exe
PID 4892 wrote to memory of 3584	4892	svhost.exe	notepad.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

4956 attrib.exe
4980 attrib.exe

pid	process
4956	attrib.exe
4980	attrib.exe

C:\Users\Admin\AppData\Local\Temp\45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe
"C:\Users\Admin\AppData\Local\Temp\45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4768

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:2928

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae.exe" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:4956

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:4460

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:4980

C:\Users\Admin\AppData\Local\Temp\svhost\svhost.exe
"C:\Users\Admin\AppData\Local\Temp\svhost\svhost.exe"
2⤵
- Modifies firewall policy service
- Modifies security service
- Windows security bypass
- Disables RegEdit via registry modification
- Executes dropped EXE
- Windows security modification
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4892

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:3584

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Modify Existing Service

2

T1031

Hidden Files and Directories

2

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

6

T1112

Disabling Security Tools

2

T1089

Hidden Files and Directories

2

T1158

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\svhost\svhost.exe
Filesize
660KB

MD5
0092838bfe137c5b3cb81384cc752a10

SHA1
58135f256464a3b4fc82473244f45da8dadd0048

SHA256
45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae

SHA512
452aa9eab9363ce4cc0d763632389496905aa46def3d2338831175d6a90f1466bf96914b759b18892e00933db6b83bcbdae266f515bf6259ce88905784323155

Download Submit
C:\Users\Admin\AppData\Local\Temp\svhost\svhost.exe
Filesize
660KB

MD5
0092838bfe137c5b3cb81384cc752a10

SHA1
58135f256464a3b4fc82473244f45da8dadd0048

SHA256
45f86cc0ed0de5f415a780debfbed189cef5baf07276af805e16513a5c4ccbae

SHA512
452aa9eab9363ce4cc0d763632389496905aa46def3d2338831175d6a90f1466bf96914b759b18892e00933db6b83bcbdae266f515bf6259ce88905784323155

Download Submit
memory/2928-132-0x0000000000000000-mapping.dmp

Download
memory/3584-139-0x0000000000000000-mapping.dmp

Download
memory/4460-133-0x0000000000000000-mapping.dmp

Download
memory/4892-136-0x0000000000000000-mapping.dmp

Download
memory/4956-134-0x0000000000000000-mapping.dmp

Download
memory/4980-135-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads