darkcomet | 4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481

General

Target

4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe
Size

756KB
MD5

86498e5016ff2cb3f0a84f0e03612858
SHA1

4f35692e54c22730b0601a9c3048c7baadf57939
SHA256

4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481
SHA512

fbe48fb5e8d351a80363dc0de57d970cabed1228e20560df4cd02d75c42b219a70d46057af9c581fcb364751cca315d866b8fcfe46630be72c49e8aecf46453f

Score

10^/10

darkcomet tacticg evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

TacticG

C2

192.168.1.113:1604

Mutex

DC_MUTEX-H293GMA

Attributes

InstallPath
windows\RealBoss.exe
gencode
kYG8AAeQRp04
install
true
offline_keylogger
true
persistence
false
reg_key
RealBoss.exe

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:

4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.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\\windows\\RealBoss.exe"	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe

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

Processes:

RealBoss.exe

pid process

1844 RealBoss.exe
Sets file to hidden 1 TTPs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1158

pid	process
1844	RealBoss.exe

Loads dropped DLL 2 IoCs

Processes:

4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe

pid	process
1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe
1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\RealBoss.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\windows\\RealBoss.exe"	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exeRealBoss.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe
Token: SeSecurityPrivilege	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe
Token: SeTakeOwnershipPrivilege	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe
Token: SeLoadDriverPrivilege	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe
Token: SeSystemProfilePrivilege	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe
Token: SeSystemtimePrivilege	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe
Token: SeProfSingleProcessPrivilege	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe
Token: SeIncBasePriorityPrivilege	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe
Token: SeCreatePagefilePrivilege	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe
Token: SeBackupPrivilege	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe
Token: SeRestorePrivilege	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe
Token: SeShutdownPrivilege	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe
Token: SeDebugPrivilege	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe
Token: SeSystemEnvironmentPrivilege	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe
Token: SeChangeNotifyPrivilege	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe
Token: SeRemoteShutdownPrivilege	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe
Token: SeUndockPrivilege	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe
Token: SeManageVolumePrivilege	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe
Token: SeImpersonatePrivilege	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe
Token: SeCreateGlobalPrivilege	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe
Token: 33	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe
Token: 34	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe
Token: 35	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe
Token: SeIncreaseQuotaPrivilege	1844	RealBoss.exe
Token: SeSecurityPrivilege	1844	RealBoss.exe
Token: SeTakeOwnershipPrivilege	1844	RealBoss.exe
Token: SeLoadDriverPrivilege	1844	RealBoss.exe
Token: SeSystemProfilePrivilege	1844	RealBoss.exe
Token: SeSystemtimePrivilege	1844	RealBoss.exe
Token: SeProfSingleProcessPrivilege	1844	RealBoss.exe
Token: SeIncBasePriorityPrivilege	1844	RealBoss.exe
Token: SeCreatePagefilePrivilege	1844	RealBoss.exe
Token: SeBackupPrivilege	1844	RealBoss.exe
Token: SeRestorePrivilege	1844	RealBoss.exe
Token: SeShutdownPrivilege	1844	RealBoss.exe
Token: SeDebugPrivilege	1844	RealBoss.exe
Token: SeSystemEnvironmentPrivilege	1844	RealBoss.exe
Token: SeChangeNotifyPrivilege	1844	RealBoss.exe
Token: SeRemoteShutdownPrivilege	1844	RealBoss.exe
Token: SeUndockPrivilege	1844	RealBoss.exe
Token: SeManageVolumePrivilege	1844	RealBoss.exe
Token: SeImpersonatePrivilege	1844	RealBoss.exe
Token: SeCreateGlobalPrivilege	1844	RealBoss.exe
Token: 33	1844	RealBoss.exe
Token: 34	1844	RealBoss.exe
Token: 35	1844	RealBoss.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

RealBoss.exe

pid process

1844 RealBoss.exe

pid	process
1844	RealBoss.exe

Suspicious use of WriteProcessMemory 43 IoCs

Processes:

4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.execmd.execmd.exeRealBoss.exe

description	pid	process	target process
PID 1480 wrote to memory of 1584	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe	cmd.exe
PID 1480 wrote to memory of 1584	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe	cmd.exe
PID 1480 wrote to memory of 1584	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe	cmd.exe
PID 1480 wrote to memory of 1584	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe	cmd.exe
PID 1480 wrote to memory of 1608	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe	cmd.exe
PID 1480 wrote to memory of 1608	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe	cmd.exe
PID 1480 wrote to memory of 1608	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe	cmd.exe
PID 1480 wrote to memory of 1608	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe	cmd.exe
PID 1608 wrote to memory of 1392	1608	cmd.exe	attrib.exe
PID 1608 wrote to memory of 1392	1608	cmd.exe	attrib.exe
PID 1608 wrote to memory of 1392	1608	cmd.exe	attrib.exe
PID 1608 wrote to memory of 1392	1608	cmd.exe	attrib.exe
PID 1584 wrote to memory of 320	1584	cmd.exe	attrib.exe
PID 1584 wrote to memory of 320	1584	cmd.exe	attrib.exe
PID 1584 wrote to memory of 320	1584	cmd.exe	attrib.exe
PID 1584 wrote to memory of 320	1584	cmd.exe	attrib.exe
PID 1480 wrote to memory of 1844	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe	RealBoss.exe
PID 1480 wrote to memory of 1844	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe	RealBoss.exe
PID 1480 wrote to memory of 1844	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe	RealBoss.exe
PID 1480 wrote to memory of 1844	1480	4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe	RealBoss.exe
PID 1844 wrote to memory of 880	1844	RealBoss.exe	notepad.exe
PID 1844 wrote to memory of 880	1844	RealBoss.exe	notepad.exe
PID 1844 wrote to memory of 880	1844	RealBoss.exe	notepad.exe
PID 1844 wrote to memory of 880	1844	RealBoss.exe	notepad.exe
PID 1844 wrote to memory of 880	1844	RealBoss.exe	notepad.exe
PID 1844 wrote to memory of 880	1844	RealBoss.exe	notepad.exe
PID 1844 wrote to memory of 880	1844	RealBoss.exe	notepad.exe
PID 1844 wrote to memory of 880	1844	RealBoss.exe	notepad.exe
PID 1844 wrote to memory of 880	1844	RealBoss.exe	notepad.exe
PID 1844 wrote to memory of 880	1844	RealBoss.exe	notepad.exe
PID 1844 wrote to memory of 880	1844	RealBoss.exe	notepad.exe
PID 1844 wrote to memory of 880	1844	RealBoss.exe	notepad.exe
PID 1844 wrote to memory of 880	1844	RealBoss.exe	notepad.exe
PID 1844 wrote to memory of 880	1844	RealBoss.exe	notepad.exe
PID 1844 wrote to memory of 880	1844	RealBoss.exe	notepad.exe
PID 1844 wrote to memory of 880	1844	RealBoss.exe	notepad.exe
PID 1844 wrote to memory of 880	1844	RealBoss.exe	notepad.exe
PID 1844 wrote to memory of 880	1844	RealBoss.exe	notepad.exe
PID 1844 wrote to memory of 880	1844	RealBoss.exe	notepad.exe
PID 1844 wrote to memory of 880	1844	RealBoss.exe	notepad.exe
PID 1844 wrote to memory of 880	1844	RealBoss.exe	notepad.exe
PID 1844 wrote to memory of 880	1844	RealBoss.exe	notepad.exe
PID 1844 wrote to memory of 880	1844	RealBoss.exe	notepad.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

1392 attrib.exe
320 attrib.exe

pid	process
1392	attrib.exe
320	attrib.exe

C:\Users\Admin\AppData\Local\Temp\4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe
"C:\Users\Admin\AppData\Local\Temp\4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1480

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:1584

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481.exe" +s +h
3⤵
- Views/modifies file attributes
PID:320

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:1608

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Views/modifies file attributes
PID:1392

C:\Users\Admin\AppData\Local\Temp\windows\RealBoss.exe
"C:\Users\Admin\AppData\Local\Temp\windows\RealBoss.exe"
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1844

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:880

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Hidden Files and Directories

2

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

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\AppData\Local\Temp\windows\RealBoss.exe
Filesize
756KB

MD5
86498e5016ff2cb3f0a84f0e03612858

SHA1
4f35692e54c22730b0601a9c3048c7baadf57939

SHA256
4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481

SHA512
fbe48fb5e8d351a80363dc0de57d970cabed1228e20560df4cd02d75c42b219a70d46057af9c581fcb364751cca315d866b8fcfe46630be72c49e8aecf46453f

Download Submit
C:\Users\Admin\AppData\Local\Temp\windows\RealBoss.exe
Filesize
756KB

MD5
86498e5016ff2cb3f0a84f0e03612858

SHA1
4f35692e54c22730b0601a9c3048c7baadf57939

SHA256
4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481

SHA512
fbe48fb5e8d351a80363dc0de57d970cabed1228e20560df4cd02d75c42b219a70d46057af9c581fcb364751cca315d866b8fcfe46630be72c49e8aecf46453f

Download Submit
\Users\Admin\AppData\Local\Temp\windows\RealBoss.exe
Filesize
756KB

MD5
86498e5016ff2cb3f0a84f0e03612858

SHA1
4f35692e54c22730b0601a9c3048c7baadf57939

SHA256
4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481

SHA512
fbe48fb5e8d351a80363dc0de57d970cabed1228e20560df4cd02d75c42b219a70d46057af9c581fcb364751cca315d866b8fcfe46630be72c49e8aecf46453f

Download Submit
\Users\Admin\AppData\Local\Temp\windows\RealBoss.exe
Filesize
756KB

MD5
86498e5016ff2cb3f0a84f0e03612858

SHA1
4f35692e54c22730b0601a9c3048c7baadf57939

SHA256
4873d23065574c318aa28955737d7d0a74372453ffa950f97da3acc8a2d60481

SHA512
fbe48fb5e8d351a80363dc0de57d970cabed1228e20560df4cd02d75c42b219a70d46057af9c581fcb364751cca315d866b8fcfe46630be72c49e8aecf46453f

Download Submit
memory/320-58-0x0000000000000000-mapping.dmp

Download
memory/880-65-0x0000000000000000-mapping.dmp

Download
memory/1392-57-0x0000000000000000-mapping.dmp

Download
memory/1480-54-0x0000000074F91000-0x0000000074F93000-memory.dmp

Filesize
8KB

Download
memory/1584-55-0x0000000000000000-mapping.dmp

Download
memory/1608-56-0x0000000000000000-mapping.dmp

Download
memory/1844-61-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads