darkcomet | a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b

General

Target

a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exe
Size

690KB
MD5

27593b60c26da879d8e0f6c5ce8b3c3c
SHA1

e050280ed8225f06c61f11b22ee9bdc32aac2777
SHA256

a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b
SHA512

17d74c7b47bfad005a6726388509fb996d126a721d20d43d61a550261f57942dcc2e74bbad78e96e0a83ebacd92eac1160f720b82630b30d16e5b438a35589ee

Score

10^/10

darkcomet pb+rp persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

PB+RP

C2

react1on.no-ip.biz:1004

Mutex

DC_MUTEX-9Z9HPRZ

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
bfAgAtl5pkim
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:

a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.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"	a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

3604 msdcsc.exe

pid	process
3604	msdcsc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.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

3604 msdcsc.exe

pid	process
3604	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	500	a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exe
Token: SeSecurityPrivilege	500	a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exe
Token: SeTakeOwnershipPrivilege	500	a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exe
Token: SeLoadDriverPrivilege	500	a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exe
Token: SeSystemProfilePrivilege	500	a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exe
Token: SeSystemtimePrivilege	500	a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exe
Token: SeProfSingleProcessPrivilege	500	a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exe
Token: SeIncBasePriorityPrivilege	500	a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exe
Token: SeCreatePagefilePrivilege	500	a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exe
Token: SeBackupPrivilege	500	a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exe
Token: SeRestorePrivilege	500	a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exe
Token: SeShutdownPrivilege	500	a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exe
Token: SeDebugPrivilege	500	a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exe
Token: SeSystemEnvironmentPrivilege	500	a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exe
Token: SeChangeNotifyPrivilege	500	a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exe
Token: SeRemoteShutdownPrivilege	500	a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exe
Token: SeUndockPrivilege	500	a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exe
Token: SeManageVolumePrivilege	500	a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exe
Token: SeImpersonatePrivilege	500	a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exe
Token: SeCreateGlobalPrivilege	500	a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exe
Token: 33	500	a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exe
Token: 34	500	a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exe
Token: 35	500	a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exe
Token: 36	500	a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exe
Token: SeIncreaseQuotaPrivilege	3604	msdcsc.exe
Token: SeSecurityPrivilege	3604	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3604	msdcsc.exe
Token: SeLoadDriverPrivilege	3604	msdcsc.exe
Token: SeSystemProfilePrivilege	3604	msdcsc.exe
Token: SeSystemtimePrivilege	3604	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3604	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3604	msdcsc.exe
Token: SeCreatePagefilePrivilege	3604	msdcsc.exe
Token: SeBackupPrivilege	3604	msdcsc.exe
Token: SeRestorePrivilege	3604	msdcsc.exe
Token: SeShutdownPrivilege	3604	msdcsc.exe
Token: SeDebugPrivilege	3604	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3604	msdcsc.exe
Token: SeChangeNotifyPrivilege	3604	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3604	msdcsc.exe
Token: SeUndockPrivilege	3604	msdcsc.exe
Token: SeManageVolumePrivilege	3604	msdcsc.exe
Token: SeImpersonatePrivilege	3604	msdcsc.exe
Token: SeCreateGlobalPrivilege	3604	msdcsc.exe
Token: 33	3604	msdcsc.exe
Token: 34	3604	msdcsc.exe
Token: 35	3604	msdcsc.exe
Token: 36	3604	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

3604 msdcsc.exe

pid	process
3604	msdcsc.exe

Suspicious use of WriteProcessMemory 25 IoCs

Processes:

a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exemsdcsc.exe

description	pid	process	target process
PID 500 wrote to memory of 3604	500	a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exe	msdcsc.exe
PID 500 wrote to memory of 3604	500	a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exe	msdcsc.exe
PID 500 wrote to memory of 3604	500	a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exe	msdcsc.exe
PID 3604 wrote to memory of 3704	3604	msdcsc.exe	notepad.exe
PID 3604 wrote to memory of 3704	3604	msdcsc.exe	notepad.exe
PID 3604 wrote to memory of 3704	3604	msdcsc.exe	notepad.exe
PID 3604 wrote to memory of 3704	3604	msdcsc.exe	notepad.exe
PID 3604 wrote to memory of 3704	3604	msdcsc.exe	notepad.exe
PID 3604 wrote to memory of 3704	3604	msdcsc.exe	notepad.exe
PID 3604 wrote to memory of 3704	3604	msdcsc.exe	notepad.exe
PID 3604 wrote to memory of 3704	3604	msdcsc.exe	notepad.exe
PID 3604 wrote to memory of 3704	3604	msdcsc.exe	notepad.exe
PID 3604 wrote to memory of 3704	3604	msdcsc.exe	notepad.exe
PID 3604 wrote to memory of 3704	3604	msdcsc.exe	notepad.exe
PID 3604 wrote to memory of 3704	3604	msdcsc.exe	notepad.exe
PID 3604 wrote to memory of 3704	3604	msdcsc.exe	notepad.exe
PID 3604 wrote to memory of 3704	3604	msdcsc.exe	notepad.exe
PID 3604 wrote to memory of 3704	3604	msdcsc.exe	notepad.exe
PID 3604 wrote to memory of 3704	3604	msdcsc.exe	notepad.exe
PID 3604 wrote to memory of 3704	3604	msdcsc.exe	notepad.exe
PID 3604 wrote to memory of 3704	3604	msdcsc.exe	notepad.exe
PID 3604 wrote to memory of 3704	3604	msdcsc.exe	notepad.exe
PID 3604 wrote to memory of 3704	3604	msdcsc.exe	notepad.exe
PID 3604 wrote to memory of 3704	3604	msdcsc.exe	notepad.exe
PID 3604 wrote to memory of 3704	3604	msdcsc.exe	notepad.exe

C:\Users\Admin\AppData\Local\Temp\a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exe
"C:\Users\Admin\AppData\Local\Temp\a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b.exe"
1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:500

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
2⤵
- Executes dropped EXE
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3604

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:3704

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe

MD5
27593b60c26da879d8e0f6c5ce8b3c3c

SHA1
e050280ed8225f06c61f11b22ee9bdc32aac2777

SHA256
a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b

SHA512
17d74c7b47bfad005a6726388509fb996d126a721d20d43d61a550261f57942dcc2e74bbad78e96e0a83ebacd92eac1160f720b82630b30d16e5b438a35589ee

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

MD5
27593b60c26da879d8e0f6c5ce8b3c3c

SHA1
e050280ed8225f06c61f11b22ee9bdc32aac2777

SHA256
a70e2b46ebb363cb0c07bbac058096b337510dc6cfd3bebd7c8ba2c2965b948b

SHA512
17d74c7b47bfad005a6726388509fb996d126a721d20d43d61a550261f57942dcc2e74bbad78e96e0a83ebacd92eac1160f720b82630b30d16e5b438a35589ee

Download Submit
memory/500-114-0x0000000000790000-0x0000000000791000-memory.dmp

Filesize
4KB

Download
memory/3604-115-0x0000000000000000-mapping.dmp

Download
memory/3604-119-0x00000000020E0000-0x00000000020E1000-memory.dmp

Filesize
4KB

Download
memory/3704-118-0x0000000000000000-mapping.dmp

Download
memory/3704-120-0x0000000000B90000-0x0000000000B91000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads