darkcomet | bffa061c4938a523859fe0e21a1dd79f85a98c751ca46153dc1199f7dde90e3a

General

Target

bffa061c4938a523859fe0e21a1dd79f85a98c751ca46153dc1199f7dde90e3a.exe
Size

1.7MB
MD5

5e653e5824314a011650dcc406b802cd
SHA1

011075687bac2bbb8c3a02f3a0f87c3bbabc09b4
SHA256

bffa061c4938a523859fe0e21a1dd79f85a98c751ca46153dc1199f7dde90e3a
SHA512

e044c714964fb8ac6aab53a3c6a305ec5e7406d351ef71b693ff70b156b1fb32d4eb83c9cfc9d8aeef4d56c0ec3594bc491abb71b8f69c7dae69ed547986f5cb
SSDEEP

24576:3fFT95vS0ErwXs8vmEHwfKss6U3RuFxDS:3tT9IbGYU3RuFx

Score

10^/10

darkcomet guest16 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

qaz3.no-ip.info:81

Mutex

DC_MUTEX-H49DYYJ

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
NWSuYEBfbuDN
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:

605.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"	605.exe

Executes dropped EXE 2 IoCs

Processes:

605.exemsdcsc.exe

pid process

1296 605.exe
1468 msdcsc.exe
Loads dropped DLL 2 IoCs

Processes:

605.exe

pid process

1296 605.exe
1296 605.exe

pid	process
1296	605.exe
1468	msdcsc.exe

pid	process
1296	605.exe
1296	605.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

msdcsc.exe605.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	605.exe

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

System Information Discovery
T1082
Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery
T1018

Processes:

PING.EXE

pid process

1872 PING.EXE

pid	process
1872	PING.EXE

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

605.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1296	605.exe
Token: SeSecurityPrivilege	1296	605.exe
Token: SeTakeOwnershipPrivilege	1296	605.exe
Token: SeLoadDriverPrivilege	1296	605.exe
Token: SeSystemProfilePrivilege	1296	605.exe
Token: SeSystemtimePrivilege	1296	605.exe
Token: SeProfSingleProcessPrivilege	1296	605.exe
Token: SeIncBasePriorityPrivilege	1296	605.exe
Token: SeCreatePagefilePrivilege	1296	605.exe
Token: SeBackupPrivilege	1296	605.exe
Token: SeRestorePrivilege	1296	605.exe
Token: SeShutdownPrivilege	1296	605.exe
Token: SeDebugPrivilege	1296	605.exe
Token: SeSystemEnvironmentPrivilege	1296	605.exe
Token: SeChangeNotifyPrivilege	1296	605.exe
Token: SeRemoteShutdownPrivilege	1296	605.exe
Token: SeUndockPrivilege	1296	605.exe
Token: SeManageVolumePrivilege	1296	605.exe
Token: SeImpersonatePrivilege	1296	605.exe
Token: SeCreateGlobalPrivilege	1296	605.exe
Token: 33	1296	605.exe
Token: 34	1296	605.exe
Token: 35	1296	605.exe
Token: SeIncreaseQuotaPrivilege	1468	msdcsc.exe
Token: SeSecurityPrivilege	1468	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1468	msdcsc.exe
Token: SeLoadDriverPrivilege	1468	msdcsc.exe
Token: SeSystemProfilePrivilege	1468	msdcsc.exe
Token: SeSystemtimePrivilege	1468	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1468	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1468	msdcsc.exe
Token: SeCreatePagefilePrivilege	1468	msdcsc.exe
Token: SeBackupPrivilege	1468	msdcsc.exe
Token: SeRestorePrivilege	1468	msdcsc.exe
Token: SeShutdownPrivilege	1468	msdcsc.exe
Token: SeDebugPrivilege	1468	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1468	msdcsc.exe
Token: SeChangeNotifyPrivilege	1468	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1468	msdcsc.exe
Token: SeUndockPrivilege	1468	msdcsc.exe
Token: SeManageVolumePrivilege	1468	msdcsc.exe
Token: SeImpersonatePrivilege	1468	msdcsc.exe
Token: SeCreateGlobalPrivilege	1468	msdcsc.exe
Token: 33	1468	msdcsc.exe
Token: 34	1468	msdcsc.exe
Token: 35	1468	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

1468 msdcsc.exe

pid	process
1468	msdcsc.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

bffa061c4938a523859fe0e21a1dd79f85a98c751ca46153dc1199f7dde90e3a.exe605.execmd.exemsdcsc.exe

description	pid	process	target process
PID 1016 wrote to memory of 1296	1016	bffa061c4938a523859fe0e21a1dd79f85a98c751ca46153dc1199f7dde90e3a.exe	605.exe
PID 1016 wrote to memory of 1296	1016	bffa061c4938a523859fe0e21a1dd79f85a98c751ca46153dc1199f7dde90e3a.exe	605.exe
PID 1016 wrote to memory of 1296	1016	bffa061c4938a523859fe0e21a1dd79f85a98c751ca46153dc1199f7dde90e3a.exe	605.exe
PID 1016 wrote to memory of 1296	1016	bffa061c4938a523859fe0e21a1dd79f85a98c751ca46153dc1199f7dde90e3a.exe	605.exe
PID 1296 wrote to memory of 1044	1296	605.exe	cmd.exe
PID 1296 wrote to memory of 1044	1296	605.exe	cmd.exe
PID 1296 wrote to memory of 1044	1296	605.exe	cmd.exe
PID 1296 wrote to memory of 1044	1296	605.exe	cmd.exe
PID 1044 wrote to memory of 1872	1044	cmd.exe	PING.EXE
PID 1044 wrote to memory of 1872	1044	cmd.exe	PING.EXE
PID 1044 wrote to memory of 1872	1044	cmd.exe	PING.EXE
PID 1044 wrote to memory of 1872	1044	cmd.exe	PING.EXE
PID 1296 wrote to memory of 1468	1296	605.exe	msdcsc.exe
PID 1296 wrote to memory of 1468	1296	605.exe	msdcsc.exe
PID 1296 wrote to memory of 1468	1296	605.exe	msdcsc.exe
PID 1296 wrote to memory of 1468	1296	605.exe	msdcsc.exe
PID 1468 wrote to memory of 988	1468	msdcsc.exe	iexplore.exe
PID 1468 wrote to memory of 988	1468	msdcsc.exe	iexplore.exe
PID 1468 wrote to memory of 988	1468	msdcsc.exe	iexplore.exe
PID 1468 wrote to memory of 988	1468	msdcsc.exe	iexplore.exe
PID 1468 wrote to memory of 1548	1468	msdcsc.exe	explorer.exe
PID 1468 wrote to memory of 1548	1468	msdcsc.exe	explorer.exe
PID 1468 wrote to memory of 1548	1468	msdcsc.exe	explorer.exe
PID 1468 wrote to memory of 1548	1468	msdcsc.exe	explorer.exe

C:\Users\Admin\AppData\Local\Temp\bffa061c4938a523859fe0e21a1dd79f85a98c751ca46153dc1199f7dde90e3a.exe
"C:\Users\Admin\AppData\Local\Temp\bffa061c4938a523859fe0e21a1dd79f85a98c751ca46153dc1199f7dde90e3a.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1016

C:\Users\Admin\AppData\Local\Temp\605.exe
C:\Users\Admin\AppData\Local\Temp\605.exe
2⤵
- Modifies WinLogon for persistence
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1296

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 4 && del "C:\Users\Admin\AppData\Local\Temp\605.exe"
3⤵
- Suspicious use of WriteProcessMemory
PID:1044

C:\Windows\SysWOW64\PING.EXE
ping 127.0.0.1 -n 4
4⤵
- Runs ping.exe
PID:1872

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1468

C:\Program Files (x86)\Internet Explorer\iexplore.exe
"C:\Program Files (x86)\Internet Explorer\iexplore.exe"
4⤵
PID:988

C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
4⤵
PID:1548

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Remote System Discovery

1

T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\605.exe
Filesize
650KB

MD5
7a39ed01aadcbda714d825de690f75ca

SHA1
554b6d90d432648697e75bacc4b255c9c3be8230

SHA256
7ee19363c5446b3054fecbd7248c9fe6c91699fad49b3aff6b67fd386ccfb029

SHA512
e1c30de642de8abf9d43eb6cd94f1e179478d774c85976c1eedd23ebcc4ff28c415cfd7d71394c7068beb099cf44f70d2289ec7aa0df82118936b1de66d10183

Download Submit
C:\Users\Admin\AppData\Local\Temp\605.exe
Filesize
650KB

MD5
7a39ed01aadcbda714d825de690f75ca

SHA1
554b6d90d432648697e75bacc4b255c9c3be8230

SHA256
7ee19363c5446b3054fecbd7248c9fe6c91699fad49b3aff6b67fd386ccfb029

SHA512
e1c30de642de8abf9d43eb6cd94f1e179478d774c85976c1eedd23ebcc4ff28c415cfd7d71394c7068beb099cf44f70d2289ec7aa0df82118936b1de66d10183

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
650KB

MD5
7a39ed01aadcbda714d825de690f75ca

SHA1
554b6d90d432648697e75bacc4b255c9c3be8230

SHA256
7ee19363c5446b3054fecbd7248c9fe6c91699fad49b3aff6b67fd386ccfb029

SHA512
e1c30de642de8abf9d43eb6cd94f1e179478d774c85976c1eedd23ebcc4ff28c415cfd7d71394c7068beb099cf44f70d2289ec7aa0df82118936b1de66d10183

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
650KB

MD5
7a39ed01aadcbda714d825de690f75ca

SHA1
554b6d90d432648697e75bacc4b255c9c3be8230

SHA256
7ee19363c5446b3054fecbd7248c9fe6c91699fad49b3aff6b67fd386ccfb029

SHA512
e1c30de642de8abf9d43eb6cd94f1e179478d774c85976c1eedd23ebcc4ff28c415cfd7d71394c7068beb099cf44f70d2289ec7aa0df82118936b1de66d10183

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
650KB

MD5
7a39ed01aadcbda714d825de690f75ca

SHA1
554b6d90d432648697e75bacc4b255c9c3be8230

SHA256
7ee19363c5446b3054fecbd7248c9fe6c91699fad49b3aff6b67fd386ccfb029

SHA512
e1c30de642de8abf9d43eb6cd94f1e179478d774c85976c1eedd23ebcc4ff28c415cfd7d71394c7068beb099cf44f70d2289ec7aa0df82118936b1de66d10183

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe
Filesize
650KB

MD5
7a39ed01aadcbda714d825de690f75ca

SHA1
554b6d90d432648697e75bacc4b255c9c3be8230

SHA256
7ee19363c5446b3054fecbd7248c9fe6c91699fad49b3aff6b67fd386ccfb029

SHA512
e1c30de642de8abf9d43eb6cd94f1e179478d774c85976c1eedd23ebcc4ff28c415cfd7d71394c7068beb099cf44f70d2289ec7aa0df82118936b1de66d10183

Download Submit
memory/1016-54-0x000007FEF3F40000-0x000007FEF4963000-memory.dmp

Filesize
10.1MB

Download
memory/1044-59-0x0000000000000000-mapping.dmp

Download
memory/1296-55-0x0000000000000000-mapping.dmp

Download
memory/1296-57-0x00000000756B1000-0x00000000756B3000-memory.dmp

Filesize
8KB

Download
memory/1468-63-0x0000000000000000-mapping.dmp

Download
memory/1872-60-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads