darkcomet | b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415

Analysis

max time kernel
151s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20220721-en
resource tags

arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
submitted
25-07-2022 00:14

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General

Target

b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe
Size

658KB
MD5

012c913e751ab367e15764c21caeda17
SHA1

2ed45638dd8b9730be7e1e128aad0fd89fe423e2
SHA256

b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415
SHA512

9a3a8136fcf6d9e30c8d7cc97d1fbe5bbfe4326cc1891232027348666fb89b81c218638e42ded7df294e84a3b85b423c6ee51138d55c89d284d8f3792bc0a514

Score

10^/10

darkcomet hello evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Hello

wbbebe.ddns.net:1604

Mutex

DC_MUTEX-LMU8FMS

Attributes

InstallPath
MSDCSC\svchost.exe
gencode
puGMcKAsuLmD
install
true
offline_keylogger
true
persistence
true
reg_key
MicroUpdate

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:

b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\system32\\MSDCSC\\svchost.exe"	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe

Modifies firewall policy service 2 TTPs 3 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

Processes:

svchost.exe

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

Modifies security service 2 TTPs 1 IoCs
evasion

Modify Registry
T1112

Modify Existing Service
T1031

Processes:

svchost.exe

description ioc process

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

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

Windows security bypass 2 TTPs 2 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

svchost.exe

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

Disables RegEdit via registry modification 1 IoCs

evasion

Processes:

svchost.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	svchost.exe

Disables Task Manager via registry modification
evasion
Executes dropped EXE 1 IoCs

Processes:

svchost.exe

pid process

1508 svchost.exe
Sets file to hidden 1 TTPs 1 IoCs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

892 attrib.exe

pid	process
1508	svchost.exe

pid	process
892	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:

b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Control Panel\International\Geo\Nation	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

svchost.exe

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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exesvchost.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\system32\\MSDCSC\\svchost.exe"	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\system32\\MSDCSC\\svchost.exe"	svchost.exe

Drops file in System32 directory 3 IoCs

Processes:

b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe

description	ioc	process
File created	C:\Windows\SysWOW64\MSDCSC\svchost.exe	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe
File opened for modification	C:\Windows\SysWOW64\MSDCSC\svchost.exe	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe
File opened for modification	C:\Windows\SysWOW64\MSDCSC\	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.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:

b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

svchost.exe

pid process

1508 svchost.exe

pid	process
1508	svchost.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exesvchost.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	3584	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe
Token: SeSecurityPrivilege	3584	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe
Token: SeTakeOwnershipPrivilege	3584	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe
Token: SeLoadDriverPrivilege	3584	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe
Token: SeSystemProfilePrivilege	3584	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe
Token: SeSystemtimePrivilege	3584	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe
Token: SeProfSingleProcessPrivilege	3584	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe
Token: SeIncBasePriorityPrivilege	3584	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe
Token: SeCreatePagefilePrivilege	3584	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe
Token: SeBackupPrivilege	3584	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe
Token: SeRestorePrivilege	3584	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe
Token: SeShutdownPrivilege	3584	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe
Token: SeDebugPrivilege	3584	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe
Token: SeSystemEnvironmentPrivilege	3584	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe
Token: SeChangeNotifyPrivilege	3584	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe
Token: SeRemoteShutdownPrivilege	3584	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe
Token: SeUndockPrivilege	3584	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe
Token: SeManageVolumePrivilege	3584	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe
Token: SeImpersonatePrivilege	3584	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe
Token: SeCreateGlobalPrivilege	3584	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe
Token: 33	3584	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe
Token: 34	3584	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe
Token: 35	3584	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe
Token: 36	3584	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe
Token: SeIncreaseQuotaPrivilege	1508	svchost.exe
Token: SeSecurityPrivilege	1508	svchost.exe
Token: SeTakeOwnershipPrivilege	1508	svchost.exe
Token: SeLoadDriverPrivilege	1508	svchost.exe
Token: SeSystemProfilePrivilege	1508	svchost.exe
Token: SeSystemtimePrivilege	1508	svchost.exe
Token: SeProfSingleProcessPrivilege	1508	svchost.exe
Token: SeIncBasePriorityPrivilege	1508	svchost.exe
Token: SeCreatePagefilePrivilege	1508	svchost.exe
Token: SeBackupPrivilege	1508	svchost.exe
Token: SeRestorePrivilege	1508	svchost.exe
Token: SeShutdownPrivilege	1508	svchost.exe
Token: SeDebugPrivilege	1508	svchost.exe
Token: SeSystemEnvironmentPrivilege	1508	svchost.exe
Token: SeChangeNotifyPrivilege	1508	svchost.exe
Token: SeRemoteShutdownPrivilege	1508	svchost.exe
Token: SeUndockPrivilege	1508	svchost.exe
Token: SeManageVolumePrivilege	1508	svchost.exe
Token: SeImpersonatePrivilege	1508	svchost.exe
Token: SeCreateGlobalPrivilege	1508	svchost.exe
Token: 33	1508	svchost.exe
Token: 34	1508	svchost.exe
Token: 35	1508	svchost.exe
Token: 36	1508	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

svchost.exe

pid process

1508 svchost.exe

pid	process
1508	svchost.exe

Suspicious use of WriteProcessMemory 36 IoCs

Processes:

b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.execmd.exesvchost.exe

description	pid	process	target process
PID 3584 wrote to memory of 4552	3584	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe	cmd.exe
PID 3584 wrote to memory of 4552	3584	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe	cmd.exe
PID 3584 wrote to memory of 4552	3584	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe	cmd.exe
PID 4552 wrote to memory of 892	4552	cmd.exe	attrib.exe
PID 4552 wrote to memory of 892	4552	cmd.exe	attrib.exe
PID 4552 wrote to memory of 892	4552	cmd.exe	attrib.exe
PID 3584 wrote to memory of 1508	3584	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe	svchost.exe
PID 3584 wrote to memory of 1508	3584	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe	svchost.exe
PID 3584 wrote to memory of 1508	3584	b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe	svchost.exe
PID 1508 wrote to memory of 3404	1508	svchost.exe	iexplore.exe
PID 1508 wrote to memory of 3404	1508	svchost.exe	iexplore.exe
PID 1508 wrote to memory of 3404	1508	svchost.exe	iexplore.exe
PID 1508 wrote to memory of 1044	1508	svchost.exe	explorer.exe
PID 1508 wrote to memory of 1044	1508	svchost.exe	explorer.exe
PID 1508 wrote to memory of 2712	1508	svchost.exe	notepad.exe
PID 1508 wrote to memory of 2712	1508	svchost.exe	notepad.exe
PID 1508 wrote to memory of 2712	1508	svchost.exe	notepad.exe
PID 1508 wrote to memory of 2712	1508	svchost.exe	notepad.exe
PID 1508 wrote to memory of 2712	1508	svchost.exe	notepad.exe
PID 1508 wrote to memory of 2712	1508	svchost.exe	notepad.exe
PID 1508 wrote to memory of 2712	1508	svchost.exe	notepad.exe
PID 1508 wrote to memory of 2712	1508	svchost.exe	notepad.exe
PID 1508 wrote to memory of 2712	1508	svchost.exe	notepad.exe
PID 1508 wrote to memory of 2712	1508	svchost.exe	notepad.exe
PID 1508 wrote to memory of 2712	1508	svchost.exe	notepad.exe
PID 1508 wrote to memory of 2712	1508	svchost.exe	notepad.exe
PID 1508 wrote to memory of 2712	1508	svchost.exe	notepad.exe
PID 1508 wrote to memory of 2712	1508	svchost.exe	notepad.exe
PID 1508 wrote to memory of 2712	1508	svchost.exe	notepad.exe
PID 1508 wrote to memory of 2712	1508	svchost.exe	notepad.exe
PID 1508 wrote to memory of 2712	1508	svchost.exe	notepad.exe
PID 1508 wrote to memory of 2712	1508	svchost.exe	notepad.exe
PID 1508 wrote to memory of 2712	1508	svchost.exe	notepad.exe
PID 1508 wrote to memory of 2712	1508	svchost.exe	notepad.exe
PID 1508 wrote to memory of 2712	1508	svchost.exe	notepad.exe
PID 1508 wrote to memory of 2712	1508	svchost.exe	notepad.exe

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

Processes:

svchost.exe

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

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

892 attrib.exe

pid	process
892	attrib.exe

C:\Users\Admin\AppData\Local\Temp\b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe
"C:\Users\Admin\AppData\Local\Temp\b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Drops file in System32 directory
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3584

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:4552

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415.exe" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:892

C:\Windows\SysWOW64\MSDCSC\svchost.exe
"C:\Windows\system32\MSDCSC\svchost.exe"
2⤵
- Modifies firewall policy service
- Modifies security service
- Windows security bypass
- Disables RegEdit via registry modification
- Executes dropped EXE
- Windows security modification
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1508

C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
3⤵
PID:3404

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
3⤵
PID:1044

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:2712

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

T1004

Modify Existing Service

T1031

Hidden Files and Directories

T1158

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Disabling Security Tools

T1089

Hidden Files and Directories

T1158

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Windows\SysWOW64\MSDCSC\svchost.exe
Filesize
658KB

MD5
012c913e751ab367e15764c21caeda17

SHA1
2ed45638dd8b9730be7e1e128aad0fd89fe423e2

SHA256
b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415

SHA512
9a3a8136fcf6d9e30c8d7cc97d1fbe5bbfe4326cc1891232027348666fb89b81c218638e42ded7df294e84a3b85b423c6ee51138d55c89d284d8f3792bc0a514

Download Submit
C:\Windows\SysWOW64\MSDCSC\svchost.exe
Filesize
658KB

MD5
012c913e751ab367e15764c21caeda17

SHA1
2ed45638dd8b9730be7e1e128aad0fd89fe423e2

SHA256
b22b2d1e592b4a7af634805a398222af210b9e3a35b6e2d90ae7ba53cda7d415

SHA512
9a3a8136fcf6d9e30c8d7cc97d1fbe5bbfe4326cc1891232027348666fb89b81c218638e42ded7df294e84a3b85b423c6ee51138d55c89d284d8f3792bc0a514

Download Submit
memory/892-132-0x0000000000000000-mapping.dmp

Download
memory/1044-136-0x0000000000000000-mapping.dmp

Download
memory/1508-133-0x0000000000000000-mapping.dmp

Download
memory/2712-137-0x0000000000000000-mapping.dmp

Download
memory/4552-131-0x0000000000000000-mapping.dmp

Download