darkcomet | 9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165

General

Target

free amongus no virus.exe
Size

659KB
MD5

21cb738e372351de0abf0f5bc532ab2c
SHA1

af006c081c76f91866f377059db52576478aab82
SHA256

9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165
SHA512

308150556c89f262b74130c0548c134bc1e0ad4e29dd04500e297f53b15988fb3f79cda8a0dafeb225a8ceac1bec5ccfd57a88d02d16dbb82e29d5d703e4cde8

Score

10^/10

darkcomet sazan evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Sazan

C2

sussysdfffdfff343.duckdns.org:1604

Mutex

DC_MUTEX-TUY24DX

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
TPTxFZiBzSR9
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:

free amongus no virus.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	free amongus no virus.exe

Modifies security service 2 TTPs 2 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

Processes:

msdcsc.exeiexplore.exe

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

Windows security bypass 2 TTPs 4 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

msdcsc.exeiexplore.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msdcsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	msdcsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	iexplore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	iexplore.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

1844 msdcsc.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

1556 attrib.exe
1528 attrib.exe
Deletes itself 1 IoCs

Processes:

notepad.exe

pid process

2032 notepad.exe
Loads dropped DLL 2 IoCs

Processes:

free amongus no virus.exe

pid process

1684 free amongus no virus.exe
1684 free amongus no virus.exe

pid	process
1844	msdcsc.exe

pid	process
1556	attrib.exe
1528	attrib.exe

pid	process
2032	notepad.exe

pid	process
1684	free amongus no virus.exe
1684	free amongus no virus.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

msdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msdcsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	msdcsc.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

free amongus no virus.exemsdcsc.exeiexplore.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	free amongus no virus.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	iexplore.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

msdcsc.exe

description pid process target process

PID 1844 set thread context of 796 1844 msdcsc.exe iexplore.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:

iexplore.exe

pid process

796 iexplore.exe

description	pid	process	target process
PID 1844 set thread context of 796	1844	msdcsc.exe	iexplore.exe

pid	process
796	iexplore.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

free amongus no virus.exemsdcsc.exeiexplore.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1684	free amongus no virus.exe
Token: SeSecurityPrivilege	1684	free amongus no virus.exe
Token: SeTakeOwnershipPrivilege	1684	free amongus no virus.exe
Token: SeLoadDriverPrivilege	1684	free amongus no virus.exe
Token: SeSystemProfilePrivilege	1684	free amongus no virus.exe
Token: SeSystemtimePrivilege	1684	free amongus no virus.exe
Token: SeProfSingleProcessPrivilege	1684	free amongus no virus.exe
Token: SeIncBasePriorityPrivilege	1684	free amongus no virus.exe
Token: SeCreatePagefilePrivilege	1684	free amongus no virus.exe
Token: SeBackupPrivilege	1684	free amongus no virus.exe
Token: SeRestorePrivilege	1684	free amongus no virus.exe
Token: SeShutdownPrivilege	1684	free amongus no virus.exe
Token: SeDebugPrivilege	1684	free amongus no virus.exe
Token: SeSystemEnvironmentPrivilege	1684	free amongus no virus.exe
Token: SeChangeNotifyPrivilege	1684	free amongus no virus.exe
Token: SeRemoteShutdownPrivilege	1684	free amongus no virus.exe
Token: SeUndockPrivilege	1684	free amongus no virus.exe
Token: SeManageVolumePrivilege	1684	free amongus no virus.exe
Token: SeImpersonatePrivilege	1684	free amongus no virus.exe
Token: SeCreateGlobalPrivilege	1684	free amongus no virus.exe
Token: 33	1684	free amongus no virus.exe
Token: 34	1684	free amongus no virus.exe
Token: 35	1684	free amongus no virus.exe
Token: SeIncreaseQuotaPrivilege	1844	msdcsc.exe
Token: SeSecurityPrivilege	1844	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1844	msdcsc.exe
Token: SeLoadDriverPrivilege	1844	msdcsc.exe
Token: SeSystemProfilePrivilege	1844	msdcsc.exe
Token: SeSystemtimePrivilege	1844	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1844	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1844	msdcsc.exe
Token: SeCreatePagefilePrivilege	1844	msdcsc.exe
Token: SeBackupPrivilege	1844	msdcsc.exe
Token: SeRestorePrivilege	1844	msdcsc.exe
Token: SeShutdownPrivilege	1844	msdcsc.exe
Token: SeDebugPrivilege	1844	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1844	msdcsc.exe
Token: SeChangeNotifyPrivilege	1844	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1844	msdcsc.exe
Token: SeUndockPrivilege	1844	msdcsc.exe
Token: SeManageVolumePrivilege	1844	msdcsc.exe
Token: SeImpersonatePrivilege	1844	msdcsc.exe
Token: SeCreateGlobalPrivilege	1844	msdcsc.exe
Token: 33	1844	msdcsc.exe
Token: 34	1844	msdcsc.exe
Token: 35	1844	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	796	iexplore.exe
Token: SeSecurityPrivilege	796	iexplore.exe
Token: SeTakeOwnershipPrivilege	796	iexplore.exe
Token: SeLoadDriverPrivilege	796	iexplore.exe
Token: SeSystemProfilePrivilege	796	iexplore.exe
Token: SeSystemtimePrivilege	796	iexplore.exe
Token: SeProfSingleProcessPrivilege	796	iexplore.exe
Token: SeIncBasePriorityPrivilege	796	iexplore.exe
Token: SeCreatePagefilePrivilege	796	iexplore.exe
Token: SeBackupPrivilege	796	iexplore.exe
Token: SeRestorePrivilege	796	iexplore.exe
Token: SeShutdownPrivilege	796	iexplore.exe
Token: SeDebugPrivilege	796	iexplore.exe
Token: SeSystemEnvironmentPrivilege	796	iexplore.exe
Token: SeChangeNotifyPrivilege	796	iexplore.exe
Token: SeRemoteShutdownPrivilege	796	iexplore.exe
Token: SeUndockPrivilege	796	iexplore.exe
Token: SeManageVolumePrivilege	796	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

iexplore.exe

pid process

796 iexplore.exe

pid	process
796	iexplore.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

free amongus no virus.execmd.execmd.exemsdcsc.exeiexplore.exe

description	pid	process	target process
PID 1684 wrote to memory of 908	1684	free amongus no virus.exe	cmd.exe
PID 1684 wrote to memory of 908	1684	free amongus no virus.exe	cmd.exe
PID 1684 wrote to memory of 908	1684	free amongus no virus.exe	cmd.exe
PID 1684 wrote to memory of 908	1684	free amongus no virus.exe	cmd.exe
PID 1684 wrote to memory of 1328	1684	free amongus no virus.exe	cmd.exe
PID 1684 wrote to memory of 1328	1684	free amongus no virus.exe	cmd.exe
PID 1684 wrote to memory of 1328	1684	free amongus no virus.exe	cmd.exe
PID 1684 wrote to memory of 1328	1684	free amongus no virus.exe	cmd.exe
PID 1684 wrote to memory of 2032	1684	free amongus no virus.exe	notepad.exe
PID 1684 wrote to memory of 2032	1684	free amongus no virus.exe	notepad.exe
PID 1684 wrote to memory of 2032	1684	free amongus no virus.exe	notepad.exe
PID 1684 wrote to memory of 2032	1684	free amongus no virus.exe	notepad.exe
PID 1684 wrote to memory of 2032	1684	free amongus no virus.exe	notepad.exe
PID 1684 wrote to memory of 2032	1684	free amongus no virus.exe	notepad.exe
PID 1684 wrote to memory of 2032	1684	free amongus no virus.exe	notepad.exe
PID 1684 wrote to memory of 2032	1684	free amongus no virus.exe	notepad.exe
PID 1684 wrote to memory of 2032	1684	free amongus no virus.exe	notepad.exe
PID 1684 wrote to memory of 2032	1684	free amongus no virus.exe	notepad.exe
PID 1684 wrote to memory of 2032	1684	free amongus no virus.exe	notepad.exe
PID 1684 wrote to memory of 2032	1684	free amongus no virus.exe	notepad.exe
PID 1684 wrote to memory of 2032	1684	free amongus no virus.exe	notepad.exe
PID 1684 wrote to memory of 2032	1684	free amongus no virus.exe	notepad.exe
PID 1684 wrote to memory of 2032	1684	free amongus no virus.exe	notepad.exe
PID 1684 wrote to memory of 2032	1684	free amongus no virus.exe	notepad.exe
PID 1684 wrote to memory of 2032	1684	free amongus no virus.exe	notepad.exe
PID 1684 wrote to memory of 2032	1684	free amongus no virus.exe	notepad.exe
PID 908 wrote to memory of 1556	908	cmd.exe	attrib.exe
PID 908 wrote to memory of 1556	908	cmd.exe	attrib.exe
PID 908 wrote to memory of 1556	908	cmd.exe	attrib.exe
PID 908 wrote to memory of 1556	908	cmd.exe	attrib.exe
PID 1328 wrote to memory of 1528	1328	cmd.exe	attrib.exe
PID 1328 wrote to memory of 1528	1328	cmd.exe	attrib.exe
PID 1328 wrote to memory of 1528	1328	cmd.exe	attrib.exe
PID 1328 wrote to memory of 1528	1328	cmd.exe	attrib.exe
PID 1684 wrote to memory of 1844	1684	free amongus no virus.exe	msdcsc.exe
PID 1684 wrote to memory of 1844	1684	free amongus no virus.exe	msdcsc.exe
PID 1684 wrote to memory of 1844	1684	free amongus no virus.exe	msdcsc.exe
PID 1684 wrote to memory of 1844	1684	free amongus no virus.exe	msdcsc.exe
PID 1844 wrote to memory of 796	1844	msdcsc.exe	iexplore.exe
PID 1844 wrote to memory of 796	1844	msdcsc.exe	iexplore.exe
PID 1844 wrote to memory of 796	1844	msdcsc.exe	iexplore.exe
PID 1844 wrote to memory of 796	1844	msdcsc.exe	iexplore.exe
PID 1844 wrote to memory of 796	1844	msdcsc.exe	iexplore.exe
PID 1844 wrote to memory of 796	1844	msdcsc.exe	iexplore.exe
PID 796 wrote to memory of 1824	796	iexplore.exe	notepad.exe
PID 796 wrote to memory of 1824	796	iexplore.exe	notepad.exe
PID 796 wrote to memory of 1824	796	iexplore.exe	notepad.exe
PID 796 wrote to memory of 1824	796	iexplore.exe	notepad.exe
PID 796 wrote to memory of 1824	796	iexplore.exe	notepad.exe
PID 796 wrote to memory of 1824	796	iexplore.exe	notepad.exe
PID 796 wrote to memory of 1824	796	iexplore.exe	notepad.exe
PID 796 wrote to memory of 1824	796	iexplore.exe	notepad.exe
PID 796 wrote to memory of 1824	796	iexplore.exe	notepad.exe
PID 796 wrote to memory of 1824	796	iexplore.exe	notepad.exe
PID 796 wrote to memory of 1824	796	iexplore.exe	notepad.exe
PID 796 wrote to memory of 1824	796	iexplore.exe	notepad.exe
PID 796 wrote to memory of 1824	796	iexplore.exe	notepad.exe
PID 796 wrote to memory of 1824	796	iexplore.exe	notepad.exe
PID 796 wrote to memory of 1824	796	iexplore.exe	notepad.exe
PID 796 wrote to memory of 1824	796	iexplore.exe	notepad.exe
PID 796 wrote to memory of 1824	796	iexplore.exe	notepad.exe
PID 796 wrote to memory of 1824	796	iexplore.exe	notepad.exe
PID 796 wrote to memory of 1824	796	iexplore.exe	notepad.exe
PID 796 wrote to memory of 1824	796	iexplore.exe	notepad.exe

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

Processes:

msdcsc.exe

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

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

1556 attrib.exe
1528 attrib.exe

pid	process
1556	attrib.exe
1528	attrib.exe

C:\Users\Admin\AppData\Local\Temp\free amongus no virus.exe
"C:\Users\Admin\AppData\Local\Temp\free amongus no virus.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1684

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\free amongus no virus.exe" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:908

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\free amongus no virus.exe" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:1556

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:1328

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:1528

C:\Windows\SysWOW64\notepad.exe
notepad
2⤵
- Deletes itself
PID:2032

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
2⤵
- Modifies security service
- Windows security bypass
- Executes dropped EXE
- Windows security modification
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1844

C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
3⤵
- Modifies security service
- Windows security bypass
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:796

C:\Windows\SysWOW64\notepad.exe
notepad
4⤵
PID:1824

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Modify Existing Service

1

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
659KB

MD5
21cb738e372351de0abf0f5bc532ab2c

SHA1
af006c081c76f91866f377059db52576478aab82

SHA256
9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165

SHA512
308150556c89f262b74130c0548c134bc1e0ad4e29dd04500e297f53b15988fb3f79cda8a0dafeb225a8ceac1bec5ccfd57a88d02d16dbb82e29d5d703e4cde8

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
659KB

MD5
21cb738e372351de0abf0f5bc532ab2c

SHA1
af006c081c76f91866f377059db52576478aab82

SHA256
9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165

SHA512
308150556c89f262b74130c0548c134bc1e0ad4e29dd04500e297f53b15988fb3f79cda8a0dafeb225a8ceac1bec5ccfd57a88d02d16dbb82e29d5d703e4cde8

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
659KB

MD5
21cb738e372351de0abf0f5bc532ab2c

SHA1
af006c081c76f91866f377059db52576478aab82

SHA256
9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165

SHA512
308150556c89f262b74130c0548c134bc1e0ad4e29dd04500e297f53b15988fb3f79cda8a0dafeb225a8ceac1bec5ccfd57a88d02d16dbb82e29d5d703e4cde8

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
659KB

MD5
21cb738e372351de0abf0f5bc532ab2c

SHA1
af006c081c76f91866f377059db52576478aab82

SHA256
9f95c22d51882e238da73706c58c9903b4f8543b8dbc549c8b01f9d3b4210165

SHA512
308150556c89f262b74130c0548c134bc1e0ad4e29dd04500e297f53b15988fb3f79cda8a0dafeb225a8ceac1bec5ccfd57a88d02d16dbb82e29d5d703e4cde8

Download Submit
memory/908-55-0x0000000000000000-mapping.dmp

Download
memory/1328-56-0x0000000000000000-mapping.dmp

Download
memory/1528-60-0x0000000000000000-mapping.dmp

Download
memory/1556-59-0x0000000000000000-mapping.dmp

Download
memory/1684-54-0x0000000074F91000-0x0000000074F93000-memory.dmp

Filesize
8KB

Download
memory/1824-67-0x0000000000000000-mapping.dmp

Download
memory/1844-63-0x0000000000000000-mapping.dmp

Download
memory/2032-57-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads