darkcomet | 7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716

General

Target

7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe
Size

658KB
MD5

f7ce32b7a4e41e6d16aaa8c2766ede4d
SHA1

4183604cdb185657e8fbcf4e5df2c694cb94049c
SHA256

7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716
SHA512

1fcdf94c074d1958ca19fcc107a722b6524f71f4cdff7acf49013f9e5b1b08dba892c605f3ee23cc53f8e053fa3900a6d774501b6447c2a6d6214ddd40ce6fe1

Score

10^/10

darkcomet all evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

All

C2

:1604

Mutex

DC_MUTEX-U0DM7GE

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
KUiN9kpfaemv
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:

7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.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\\MSDCSC\\msdcsc.exe"	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

192 msdcsc.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
192	msdcsc.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Control Panel\International\Geo\Nation	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exemsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\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

Modifies registry class 1 IoCs

Processes:

7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

msdcsc.exe

pid process

192 msdcsc.exe

pid	process
192	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	808	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe
Token: SeSecurityPrivilege	808	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe
Token: SeTakeOwnershipPrivilege	808	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe
Token: SeLoadDriverPrivilege	808	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe
Token: SeSystemProfilePrivilege	808	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe
Token: SeSystemtimePrivilege	808	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe
Token: SeProfSingleProcessPrivilege	808	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe
Token: SeIncBasePriorityPrivilege	808	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe
Token: SeCreatePagefilePrivilege	808	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe
Token: SeBackupPrivilege	808	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe
Token: SeRestorePrivilege	808	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe
Token: SeShutdownPrivilege	808	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe
Token: SeDebugPrivilege	808	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe
Token: SeSystemEnvironmentPrivilege	808	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe
Token: SeChangeNotifyPrivilege	808	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe
Token: SeRemoteShutdownPrivilege	808	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe
Token: SeUndockPrivilege	808	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe
Token: SeManageVolumePrivilege	808	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe
Token: SeImpersonatePrivilege	808	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe
Token: SeCreateGlobalPrivilege	808	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe
Token: 33	808	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe
Token: 34	808	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe
Token: 35	808	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe
Token: 36	808	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe
Token: SeIncreaseQuotaPrivilege	192	msdcsc.exe
Token: SeSecurityPrivilege	192	msdcsc.exe
Token: SeTakeOwnershipPrivilege	192	msdcsc.exe
Token: SeLoadDriverPrivilege	192	msdcsc.exe
Token: SeSystemProfilePrivilege	192	msdcsc.exe
Token: SeSystemtimePrivilege	192	msdcsc.exe
Token: SeProfSingleProcessPrivilege	192	msdcsc.exe
Token: SeIncBasePriorityPrivilege	192	msdcsc.exe
Token: SeCreatePagefilePrivilege	192	msdcsc.exe
Token: SeBackupPrivilege	192	msdcsc.exe
Token: SeRestorePrivilege	192	msdcsc.exe
Token: SeShutdownPrivilege	192	msdcsc.exe
Token: SeDebugPrivilege	192	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	192	msdcsc.exe
Token: SeChangeNotifyPrivilege	192	msdcsc.exe
Token: SeRemoteShutdownPrivilege	192	msdcsc.exe
Token: SeUndockPrivilege	192	msdcsc.exe
Token: SeManageVolumePrivilege	192	msdcsc.exe
Token: SeImpersonatePrivilege	192	msdcsc.exe
Token: SeCreateGlobalPrivilege	192	msdcsc.exe
Token: 33	192	msdcsc.exe
Token: 34	192	msdcsc.exe
Token: 35	192	msdcsc.exe
Token: 36	192	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

192 msdcsc.exe

pid	process
192	msdcsc.exe

Suspicious use of WriteProcessMemory 37 IoCs

Processes:

7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.execmd.execmd.exemsdcsc.exe

description	pid	process	target process
PID 808 wrote to memory of 3044	808	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe	cmd.exe
PID 808 wrote to memory of 3044	808	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe	cmd.exe
PID 808 wrote to memory of 3044	808	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe	cmd.exe
PID 808 wrote to memory of 1840	808	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe	cmd.exe
PID 808 wrote to memory of 1840	808	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe	cmd.exe
PID 808 wrote to memory of 1840	808	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe	cmd.exe
PID 1840 wrote to memory of 1880	1840	cmd.exe	attrib.exe
PID 1840 wrote to memory of 1880	1840	cmd.exe	attrib.exe
PID 1840 wrote to memory of 1880	1840	cmd.exe	attrib.exe
PID 3044 wrote to memory of 1896	3044	cmd.exe	attrib.exe
PID 3044 wrote to memory of 1896	3044	cmd.exe	attrib.exe
PID 3044 wrote to memory of 1896	3044	cmd.exe	attrib.exe
PID 808 wrote to memory of 192	808	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe	msdcsc.exe
PID 808 wrote to memory of 192	808	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe	msdcsc.exe
PID 808 wrote to memory of 192	808	7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe	msdcsc.exe
PID 192 wrote to memory of 3332	192	msdcsc.exe	notepad.exe
PID 192 wrote to memory of 3332	192	msdcsc.exe	notepad.exe
PID 192 wrote to memory of 3332	192	msdcsc.exe	notepad.exe
PID 192 wrote to memory of 3332	192	msdcsc.exe	notepad.exe
PID 192 wrote to memory of 3332	192	msdcsc.exe	notepad.exe
PID 192 wrote to memory of 3332	192	msdcsc.exe	notepad.exe
PID 192 wrote to memory of 3332	192	msdcsc.exe	notepad.exe
PID 192 wrote to memory of 3332	192	msdcsc.exe	notepad.exe
PID 192 wrote to memory of 3332	192	msdcsc.exe	notepad.exe
PID 192 wrote to memory of 3332	192	msdcsc.exe	notepad.exe
PID 192 wrote to memory of 3332	192	msdcsc.exe	notepad.exe
PID 192 wrote to memory of 3332	192	msdcsc.exe	notepad.exe
PID 192 wrote to memory of 3332	192	msdcsc.exe	notepad.exe
PID 192 wrote to memory of 3332	192	msdcsc.exe	notepad.exe
PID 192 wrote to memory of 3332	192	msdcsc.exe	notepad.exe
PID 192 wrote to memory of 3332	192	msdcsc.exe	notepad.exe
PID 192 wrote to memory of 3332	192	msdcsc.exe	notepad.exe
PID 192 wrote to memory of 3332	192	msdcsc.exe	notepad.exe
PID 192 wrote to memory of 3332	192	msdcsc.exe	notepad.exe
PID 192 wrote to memory of 3332	192	msdcsc.exe	notepad.exe
PID 192 wrote to memory of 3332	192	msdcsc.exe	notepad.exe
PID 192 wrote to memory of 3332	192	msdcsc.exe	notepad.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

1880 attrib.exe
1896 attrib.exe

pid	process
1880	attrib.exe
1896	attrib.exe

C:\Users\Admin\AppData\Local\Temp\7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe
"C:\Users\Admin\AppData\Local\Temp\7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:808

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:3044

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716.exe" +s +h
3⤵
- Views/modifies file attributes
PID:1896

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:1840

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Views/modifies file attributes
PID:1880

C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
"C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:192

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:3332

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
MD5
f7ce32b7a4e41e6d16aaa8c2766ede4d

SHA1
4183604cdb185657e8fbcf4e5df2c694cb94049c

SHA256
7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716

SHA512
1fcdf94c074d1958ca19fcc107a722b6524f71f4cdff7acf49013f9e5b1b08dba892c605f3ee23cc53f8e053fa3900a6d774501b6447c2a6d6214ddd40ce6fe1

Download Submit
C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
MD5
f7ce32b7a4e41e6d16aaa8c2766ede4d

SHA1
4183604cdb185657e8fbcf4e5df2c694cb94049c

SHA256
7118c3db49b6e9278fb34a7696089f4f44f3b8ae4cb85083af64ea2100c5e716

SHA512
1fcdf94c074d1958ca19fcc107a722b6524f71f4cdff7acf49013f9e5b1b08dba892c605f3ee23cc53f8e053fa3900a6d774501b6447c2a6d6214ddd40ce6fe1

Download Submit
memory/192-119-0x0000000000000000-mapping.dmp

Download
memory/192-123-0x0000000000570000-0x00000000006BA000-memory.dmp

Filesize
1.3MB

Download
memory/808-114-0x00000000022F0000-0x00000000022F1000-memory.dmp

Filesize
4KB

Download
memory/1840-116-0x0000000000000000-mapping.dmp

Download
memory/1880-117-0x0000000000000000-mapping.dmp

Download
memory/1896-118-0x0000000000000000-mapping.dmp

Download
memory/3044-115-0x0000000000000000-mapping.dmp

Download
memory/3332-122-0x0000000000000000-mapping.dmp

Download
memory/3332-124-0x00000000011C0000-0x00000000011C1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads