darkcomet | b7de3304bb713d3da34c1d057e8dd48c7b5677e94d0f93ddee96089ff6445c25

General

Target

RAT2.exe
Size

758KB
MD5

21d196003c2ebe1318a386a3f1b96bbc
SHA1

83ce95a86173ec0f6a708ee4cfd40260c5a624e7
SHA256

b7de3304bb713d3da34c1d057e8dd48c7b5677e94d0f93ddee96089ff6445c25
SHA512

f0947c77b3ce5b20d7df88ec8793f51bd7f9bc2a17f1c954e21c4bfe294213a38cae9657b4f892fd180cb7f43720d5c5cfaa1ff8923e10b456f23d66529202fa
SSDEEP

12288:b9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hTvvNVRuH:VZ1xuVVjfFoynPaVBUR8f+kN10EBdvzG

Score

10^/10

darkcomet guest16 evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

nayef.ddns.net:1604

Mutex

DC_MUTEX-S42YJ4Y

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
7CVEBPhuYSgK
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

T1547.004

Modify Registry

T1112

Processes:

RAT2.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"	RAT2.exe

Windows security bypass 2 TTPs 1 IoCs
evasion trojan

Disable or Modify Tools
T1562.001

Modify Registry
T1112

Processes:

msdcsc.exe

description ioc process

Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" msdcsc.exe
Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

2700 msdcsc.exe
Loads dropped DLL 2 IoCs

Processes:

RAT2.exe

pid process

2152 RAT2.exe
2152 RAT2.exe
Windows security modification 2 TTPs 1 IoCs
evasion trojan

Disable or Modify Tools
T1562.001

Modify Registry
T1112

Processes:

msdcsc.exe

description ioc process

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

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

pid	process
2700	msdcsc.exe

pid	process
2152	RAT2.exe
2152	RAT2.exe

description	ioc	process
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

T1547.001

Modify Registry

T1112

Processes:

RAT2.exemsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	RAT2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\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).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

RAT2.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	2152	RAT2.exe
Token: SeSecurityPrivilege	2152	RAT2.exe
Token: SeTakeOwnershipPrivilege	2152	RAT2.exe
Token: SeLoadDriverPrivilege	2152	RAT2.exe
Token: SeSystemProfilePrivilege	2152	RAT2.exe
Token: SeSystemtimePrivilege	2152	RAT2.exe
Token: SeProfSingleProcessPrivilege	2152	RAT2.exe
Token: SeIncBasePriorityPrivilege	2152	RAT2.exe
Token: SeCreatePagefilePrivilege	2152	RAT2.exe
Token: SeBackupPrivilege	2152	RAT2.exe
Token: SeRestorePrivilege	2152	RAT2.exe
Token: SeShutdownPrivilege	2152	RAT2.exe
Token: SeDebugPrivilege	2152	RAT2.exe
Token: SeSystemEnvironmentPrivilege	2152	RAT2.exe
Token: SeChangeNotifyPrivilege	2152	RAT2.exe
Token: SeRemoteShutdownPrivilege	2152	RAT2.exe
Token: SeUndockPrivilege	2152	RAT2.exe
Token: SeManageVolumePrivilege	2152	RAT2.exe
Token: SeImpersonatePrivilege	2152	RAT2.exe
Token: SeCreateGlobalPrivilege	2152	RAT2.exe
Token: 33	2152	RAT2.exe
Token: 34	2152	RAT2.exe
Token: 35	2152	RAT2.exe
Token: SeIncreaseQuotaPrivilege	2700	msdcsc.exe
Token: SeSecurityPrivilege	2700	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2700	msdcsc.exe
Token: SeLoadDriverPrivilege	2700	msdcsc.exe
Token: SeSystemProfilePrivilege	2700	msdcsc.exe
Token: SeSystemtimePrivilege	2700	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2700	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2700	msdcsc.exe
Token: SeCreatePagefilePrivilege	2700	msdcsc.exe
Token: SeBackupPrivilege	2700	msdcsc.exe
Token: SeRestorePrivilege	2700	msdcsc.exe
Token: SeShutdownPrivilege	2700	msdcsc.exe
Token: SeDebugPrivilege	2700	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2700	msdcsc.exe
Token: SeChangeNotifyPrivilege	2700	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2700	msdcsc.exe
Token: SeUndockPrivilege	2700	msdcsc.exe
Token: SeManageVolumePrivilege	2700	msdcsc.exe
Token: SeImpersonatePrivilege	2700	msdcsc.exe
Token: SeCreateGlobalPrivilege	2700	msdcsc.exe
Token: 33	2700	msdcsc.exe
Token: 34	2700	msdcsc.exe
Token: 35	2700	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

2700 msdcsc.exe

pid	process
2700	msdcsc.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

RAT2.exemsdcsc.exe

description	pid	process	target process
PID 2152 wrote to memory of 2700	2152	RAT2.exe	msdcsc.exe
PID 2152 wrote to memory of 2700	2152	RAT2.exe	msdcsc.exe
PID 2152 wrote to memory of 2700	2152	RAT2.exe	msdcsc.exe
PID 2152 wrote to memory of 2700	2152	RAT2.exe	msdcsc.exe
PID 2700 wrote to memory of 2660	2700	msdcsc.exe	notepad.exe
PID 2700 wrote to memory of 2660	2700	msdcsc.exe	notepad.exe
PID 2700 wrote to memory of 2660	2700	msdcsc.exe	notepad.exe
PID 2700 wrote to memory of 2660	2700	msdcsc.exe	notepad.exe
PID 2700 wrote to memory of 2660	2700	msdcsc.exe	notepad.exe
PID 2700 wrote to memory of 2660	2700	msdcsc.exe	notepad.exe
PID 2700 wrote to memory of 2660	2700	msdcsc.exe	notepad.exe
PID 2700 wrote to memory of 2660	2700	msdcsc.exe	notepad.exe
PID 2700 wrote to memory of 2660	2700	msdcsc.exe	notepad.exe
PID 2700 wrote to memory of 2660	2700	msdcsc.exe	notepad.exe
PID 2700 wrote to memory of 2660	2700	msdcsc.exe	notepad.exe
PID 2700 wrote to memory of 2660	2700	msdcsc.exe	notepad.exe
PID 2700 wrote to memory of 2660	2700	msdcsc.exe	notepad.exe
PID 2700 wrote to memory of 2660	2700	msdcsc.exe	notepad.exe
PID 2700 wrote to memory of 2660	2700	msdcsc.exe	notepad.exe
PID 2700 wrote to memory of 2660	2700	msdcsc.exe	notepad.exe
PID 2700 wrote to memory of 2660	2700	msdcsc.exe	notepad.exe
PID 2700 wrote to memory of 2660	2700	msdcsc.exe	notepad.exe
PID 2700 wrote to memory of 2660	2700	msdcsc.exe	notepad.exe
PID 2700 wrote to memory of 2660	2700	msdcsc.exe	notepad.exe
PID 2700 wrote to memory of 2660	2700	msdcsc.exe	notepad.exe
PID 2700 wrote to memory of 2660	2700	msdcsc.exe	notepad.exe
PID 2700 wrote to memory of 2660	2700	msdcsc.exe	notepad.exe

C:\Users\Admin\AppData\Local\Temp\RAT2.exe
"C:\Users\Admin\AppData\Local\Temp\RAT2.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2152

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
2⤵
- Windows security bypass
- Executes dropped EXE
- Windows security modification
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2700

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:2660

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Defense Evasion

Modify Registry

4

T1112

Impair Defenses

2

T1562

Disable or Modify Tools

2

T1562.001

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
758KB

MD5
21d196003c2ebe1318a386a3f1b96bbc

SHA1
83ce95a86173ec0f6a708ee4cfd40260c5a624e7

SHA256
b7de3304bb713d3da34c1d057e8dd48c7b5677e94d0f93ddee96089ff6445c25

SHA512
f0947c77b3ce5b20d7df88ec8793f51bd7f9bc2a17f1c954e21c4bfe294213a38cae9657b4f892fd180cb7f43720d5c5cfaa1ff8923e10b456f23d66529202fa

Download Submit
memory/2152-0-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2152-50-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/2660-13-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2660-49-0x00000000008E0000-0x00000000008E1000-memory.dmp

Filesize
4KB

Download
memory/2700-11-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/2700-51-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/2700-52-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download
memory/2700-53-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/2700-54-0x0000000000400000-0x00000000004CB000-memory.dmp

Filesize
812KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads