darkcomet | 2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf

General

Target

2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe
Size

807KB
MD5

1b65c2a3c7627597b54d16d3f1b80418
SHA1

383a0d1115b33a50e7c8e9875155e9033a37c8c0
SHA256

2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf
SHA512

b7ae5b9df4758c5638a332a8896292aa0e567f0253fd8f4bbb178feb0544085889972605b49baf1e8432ab944881aad69d64a9d64968a89dee2a7ab3b9abd381

Score

10^/10

darkcomet sazan evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Sazan

C2

0.tcp.ngrok.io:14298

Mutex

DC_MUTEX-03KLHJJ

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
JmWdVpbgJaAR
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:

2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.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"	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe

Modifies firewall policy service 2 TTPs 3 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

Processes:

msdcsc.exe

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

Modifies security service 2 TTPs 1 IoCs
evasion

Modify Registry
T1112

Modify Existing Service
T1031

Processes:

msdcsc.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4" msdcsc.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
Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

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

Hidden Files and Directories
T1158

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

pid	process
752	msdcsc.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 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exemsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.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:

msdcsc.exe

pid process

752 msdcsc.exe

pid	process
752	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	2208	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe
Token: SeSecurityPrivilege	2208	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe
Token: SeTakeOwnershipPrivilege	2208	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe
Token: SeLoadDriverPrivilege	2208	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe
Token: SeSystemProfilePrivilege	2208	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe
Token: SeSystemtimePrivilege	2208	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe
Token: SeProfSingleProcessPrivilege	2208	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe
Token: SeIncBasePriorityPrivilege	2208	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe
Token: SeCreatePagefilePrivilege	2208	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe
Token: SeBackupPrivilege	2208	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe
Token: SeRestorePrivilege	2208	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe
Token: SeShutdownPrivilege	2208	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe
Token: SeDebugPrivilege	2208	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe
Token: SeSystemEnvironmentPrivilege	2208	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe
Token: SeChangeNotifyPrivilege	2208	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe
Token: SeRemoteShutdownPrivilege	2208	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe
Token: SeUndockPrivilege	2208	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe
Token: SeManageVolumePrivilege	2208	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe
Token: SeImpersonatePrivilege	2208	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe
Token: SeCreateGlobalPrivilege	2208	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe
Token: 33	2208	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe
Token: 34	2208	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe
Token: 35	2208	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe
Token: 36	2208	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe
Token: SeIncreaseQuotaPrivilege	752	msdcsc.exe
Token: SeSecurityPrivilege	752	msdcsc.exe
Token: SeTakeOwnershipPrivilege	752	msdcsc.exe
Token: SeLoadDriverPrivilege	752	msdcsc.exe
Token: SeSystemProfilePrivilege	752	msdcsc.exe
Token: SeSystemtimePrivilege	752	msdcsc.exe
Token: SeProfSingleProcessPrivilege	752	msdcsc.exe
Token: SeIncBasePriorityPrivilege	752	msdcsc.exe
Token: SeCreatePagefilePrivilege	752	msdcsc.exe
Token: SeBackupPrivilege	752	msdcsc.exe
Token: SeRestorePrivilege	752	msdcsc.exe
Token: SeShutdownPrivilege	752	msdcsc.exe
Token: SeDebugPrivilege	752	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	752	msdcsc.exe
Token: SeChangeNotifyPrivilege	752	msdcsc.exe
Token: SeRemoteShutdownPrivilege	752	msdcsc.exe
Token: SeUndockPrivilege	752	msdcsc.exe
Token: SeManageVolumePrivilege	752	msdcsc.exe
Token: SeImpersonatePrivilege	752	msdcsc.exe
Token: SeCreateGlobalPrivilege	752	msdcsc.exe
Token: 33	752	msdcsc.exe
Token: 34	752	msdcsc.exe
Token: 35	752	msdcsc.exe
Token: 36	752	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

752 msdcsc.exe

pid	process
752	msdcsc.exe

Suspicious use of WriteProcessMemory 42 IoCs

Processes:

2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.execmd.exemsdcsc.execmd.exe

description	pid	process	target process
PID 2208 wrote to memory of 2704	2208	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe	cmd.exe
PID 2208 wrote to memory of 2704	2208	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe	cmd.exe
PID 2208 wrote to memory of 2704	2208	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe	cmd.exe
PID 2208 wrote to memory of 2744	2208	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe	cmd.exe
PID 2208 wrote to memory of 2744	2208	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe	cmd.exe
PID 2208 wrote to memory of 2744	2208	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe	cmd.exe
PID 2208 wrote to memory of 752	2208	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe	msdcsc.exe
PID 2208 wrote to memory of 752	2208	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe	msdcsc.exe
PID 2208 wrote to memory of 752	2208	2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe	msdcsc.exe
PID 2744 wrote to memory of 3644	2744	cmd.exe	attrib.exe
PID 2744 wrote to memory of 3644	2744	cmd.exe	attrib.exe
PID 2744 wrote to memory of 3644	2744	cmd.exe	attrib.exe
PID 752 wrote to memory of 3584	752	msdcsc.exe	iexplore.exe
PID 752 wrote to memory of 3584	752	msdcsc.exe	iexplore.exe
PID 752 wrote to memory of 3584	752	msdcsc.exe	iexplore.exe
PID 2704 wrote to memory of 1964	2704	cmd.exe	attrib.exe
PID 2704 wrote to memory of 1964	2704	cmd.exe	attrib.exe
PID 2704 wrote to memory of 1964	2704	cmd.exe	attrib.exe
PID 752 wrote to memory of 2280	752	msdcsc.exe	explorer.exe
PID 752 wrote to memory of 2280	752	msdcsc.exe	explorer.exe
PID 752 wrote to memory of 2580	752	msdcsc.exe	notepad.exe
PID 752 wrote to memory of 2580	752	msdcsc.exe	notepad.exe
PID 752 wrote to memory of 2580	752	msdcsc.exe	notepad.exe
PID 752 wrote to memory of 2580	752	msdcsc.exe	notepad.exe
PID 752 wrote to memory of 2580	752	msdcsc.exe	notepad.exe
PID 752 wrote to memory of 2580	752	msdcsc.exe	notepad.exe
PID 752 wrote to memory of 2580	752	msdcsc.exe	notepad.exe
PID 752 wrote to memory of 2580	752	msdcsc.exe	notepad.exe
PID 752 wrote to memory of 2580	752	msdcsc.exe	notepad.exe
PID 752 wrote to memory of 2580	752	msdcsc.exe	notepad.exe
PID 752 wrote to memory of 2580	752	msdcsc.exe	notepad.exe
PID 752 wrote to memory of 2580	752	msdcsc.exe	notepad.exe
PID 752 wrote to memory of 2580	752	msdcsc.exe	notepad.exe
PID 752 wrote to memory of 2580	752	msdcsc.exe	notepad.exe
PID 752 wrote to memory of 2580	752	msdcsc.exe	notepad.exe
PID 752 wrote to memory of 2580	752	msdcsc.exe	notepad.exe
PID 752 wrote to memory of 2580	752	msdcsc.exe	notepad.exe
PID 752 wrote to memory of 2580	752	msdcsc.exe	notepad.exe
PID 752 wrote to memory of 2580	752	msdcsc.exe	notepad.exe
PID 752 wrote to memory of 2580	752	msdcsc.exe	notepad.exe
PID 752 wrote to memory of 2580	752	msdcsc.exe	notepad.exe
PID 752 wrote to memory of 2580	752	msdcsc.exe	notepad.exe

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

Processes:

msdcsc.exe

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

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

3644 attrib.exe
1964 attrib.exe

pid	process
3644	attrib.exe
1964	attrib.exe

C:\Users\Admin\AppData\Local\Temp\2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe
"C:\Users\Admin\AppData\Local\Temp\2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe"
1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2208

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:2704

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf.exe" +s +h
3⤵
- Views/modifies file attributes
PID:1964

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:2744

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Views/modifies file attributes
PID:3644

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
2⤵
- Modifies firewall policy service
- Modifies security service
- 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:752

C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
3⤵
PID:3584

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:2580

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
3⤵
PID:2280

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

7

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
1b65c2a3c7627597b54d16d3f1b80418

SHA1
383a0d1115b33a50e7c8e9875155e9033a37c8c0

SHA256
2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf

SHA512
b7ae5b9df4758c5638a332a8896292aa0e567f0253fd8f4bbb178feb0544085889972605b49baf1e8432ab944881aad69d64a9d64968a89dee2a7ab3b9abd381

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
1b65c2a3c7627597b54d16d3f1b80418

SHA1
383a0d1115b33a50e7c8e9875155e9033a37c8c0

SHA256
2e15ef27dc6e9b414c7cb2cf9ae5ce50f13f889461442c33f3128b569ede31bf

SHA512
b7ae5b9df4758c5638a332a8896292aa0e567f0253fd8f4bbb178feb0544085889972605b49baf1e8432ab944881aad69d64a9d64968a89dee2a7ab3b9abd381

Download Submit
memory/752-118-0x0000000000000000-mapping.dmp

Download
memory/752-124-0x00000000021C0000-0x00000000021C1000-memory.dmp

Filesize
4KB

Download
memory/1964-122-0x0000000000000000-mapping.dmp

Download
memory/2208-115-0x0000000002240000-0x0000000002241000-memory.dmp

Filesize
4KB

Download
memory/2580-123-0x0000000000000000-mapping.dmp

Download
memory/2580-125-0x0000000002CC0000-0x0000000002CC1000-memory.dmp

Filesize
4KB

Download
memory/2704-116-0x0000000000000000-mapping.dmp

Download
memory/2744-117-0x0000000000000000-mapping.dmp

Download
memory/3644-121-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads