darkcomet | c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794

General

Target

c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe
Size

756KB
MD5

736a628795a481e5c9fe19cc710c1f5d
SHA1

7021224829890d4f894e98f5d0971ae1637a6168
SHA256

c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794
SHA512

940f8db732ac2530405ec7b1037c75caf20fda53bfe1d84096ad50a4e1a094a4d9a11422552efccecd061493dd41349ba1ab57288dcf5b8d8b83e9785dd5948e

Score

10^/10

darkcomet guest16 evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

192.168.2.196:1604

zuhnminecraftmusic.hopto.org:1604

Mutex

DC_MUTEX-GJCW855

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
fl0zcGzUZSdZ
install
true
offline_keylogger
true
persistence
false
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:

c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.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"	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe

Modifies firewall policy service 2 TTPs 3 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

Processes:

msdcsc.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	msdcsc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	msdcsc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	msdcsc.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

2572 msdcsc.exe
Sets file to hidden 1 TTPs 2 IoCs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

1492 attrib.exe
1888 attrib.exe

pid	process
2572	msdcsc.exe

pid	process
1492	attrib.exe
1888	attrib.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:

c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\Control Panel\International\Geo\Nation	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2660308776-3705150086-26593515-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.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:

c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

msdcsc.exe

pid process

2572 msdcsc.exe

pid	process
2572	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	772	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe
Token: SeSecurityPrivilege	772	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe
Token: SeTakeOwnershipPrivilege	772	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe
Token: SeLoadDriverPrivilege	772	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe
Token: SeSystemProfilePrivilege	772	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe
Token: SeSystemtimePrivilege	772	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe
Token: SeProfSingleProcessPrivilege	772	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe
Token: SeIncBasePriorityPrivilege	772	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe
Token: SeCreatePagefilePrivilege	772	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe
Token: SeBackupPrivilege	772	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe
Token: SeRestorePrivilege	772	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe
Token: SeShutdownPrivilege	772	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe
Token: SeDebugPrivilege	772	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe
Token: SeSystemEnvironmentPrivilege	772	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe
Token: SeChangeNotifyPrivilege	772	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe
Token: SeRemoteShutdownPrivilege	772	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe
Token: SeUndockPrivilege	772	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe
Token: SeManageVolumePrivilege	772	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe
Token: SeImpersonatePrivilege	772	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe
Token: SeCreateGlobalPrivilege	772	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe
Token: 33	772	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe
Token: 34	772	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe
Token: 35	772	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe
Token: 36	772	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe
Token: SeIncreaseQuotaPrivilege	2572	msdcsc.exe
Token: SeSecurityPrivilege	2572	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2572	msdcsc.exe
Token: SeLoadDriverPrivilege	2572	msdcsc.exe
Token: SeSystemProfilePrivilege	2572	msdcsc.exe
Token: SeSystemtimePrivilege	2572	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2572	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2572	msdcsc.exe
Token: SeCreatePagefilePrivilege	2572	msdcsc.exe
Token: SeBackupPrivilege	2572	msdcsc.exe
Token: SeRestorePrivilege	2572	msdcsc.exe
Token: SeShutdownPrivilege	2572	msdcsc.exe
Token: SeDebugPrivilege	2572	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2572	msdcsc.exe
Token: SeChangeNotifyPrivilege	2572	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2572	msdcsc.exe
Token: SeUndockPrivilege	2572	msdcsc.exe
Token: SeManageVolumePrivilege	2572	msdcsc.exe
Token: SeImpersonatePrivilege	2572	msdcsc.exe
Token: SeCreateGlobalPrivilege	2572	msdcsc.exe
Token: 33	2572	msdcsc.exe
Token: 34	2572	msdcsc.exe
Token: 35	2572	msdcsc.exe
Token: 36	2572	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

2572 msdcsc.exe

pid	process
2572	msdcsc.exe

Suspicious use of WriteProcessMemory 37 IoCs

Processes:

c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.execmd.execmd.exemsdcsc.exe

description	pid	process	target process
PID 772 wrote to memory of 4712	772	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe	cmd.exe
PID 772 wrote to memory of 4712	772	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe	cmd.exe
PID 772 wrote to memory of 4712	772	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe	cmd.exe
PID 772 wrote to memory of 4492	772	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe	cmd.exe
PID 772 wrote to memory of 4492	772	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe	cmd.exe
PID 772 wrote to memory of 4492	772	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe	cmd.exe
PID 4712 wrote to memory of 1492	4712	cmd.exe	attrib.exe
PID 4712 wrote to memory of 1492	4712	cmd.exe	attrib.exe
PID 4712 wrote to memory of 1492	4712	cmd.exe	attrib.exe
PID 4492 wrote to memory of 1888	4492	cmd.exe	attrib.exe
PID 4492 wrote to memory of 1888	4492	cmd.exe	attrib.exe
PID 4492 wrote to memory of 1888	4492	cmd.exe	attrib.exe
PID 772 wrote to memory of 2572	772	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe	msdcsc.exe
PID 772 wrote to memory of 2572	772	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe	msdcsc.exe
PID 772 wrote to memory of 2572	772	c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe	msdcsc.exe
PID 2572 wrote to memory of 520	2572	msdcsc.exe	notepad.exe
PID 2572 wrote to memory of 520	2572	msdcsc.exe	notepad.exe
PID 2572 wrote to memory of 520	2572	msdcsc.exe	notepad.exe
PID 2572 wrote to memory of 520	2572	msdcsc.exe	notepad.exe
PID 2572 wrote to memory of 520	2572	msdcsc.exe	notepad.exe
PID 2572 wrote to memory of 520	2572	msdcsc.exe	notepad.exe
PID 2572 wrote to memory of 520	2572	msdcsc.exe	notepad.exe
PID 2572 wrote to memory of 520	2572	msdcsc.exe	notepad.exe
PID 2572 wrote to memory of 520	2572	msdcsc.exe	notepad.exe
PID 2572 wrote to memory of 520	2572	msdcsc.exe	notepad.exe
PID 2572 wrote to memory of 520	2572	msdcsc.exe	notepad.exe
PID 2572 wrote to memory of 520	2572	msdcsc.exe	notepad.exe
PID 2572 wrote to memory of 520	2572	msdcsc.exe	notepad.exe
PID 2572 wrote to memory of 520	2572	msdcsc.exe	notepad.exe
PID 2572 wrote to memory of 520	2572	msdcsc.exe	notepad.exe
PID 2572 wrote to memory of 520	2572	msdcsc.exe	notepad.exe
PID 2572 wrote to memory of 520	2572	msdcsc.exe	notepad.exe
PID 2572 wrote to memory of 520	2572	msdcsc.exe	notepad.exe
PID 2572 wrote to memory of 520	2572	msdcsc.exe	notepad.exe
PID 2572 wrote to memory of 520	2572	msdcsc.exe	notepad.exe
PID 2572 wrote to memory of 520	2572	msdcsc.exe	notepad.exe
PID 2572 wrote to memory of 520	2572	msdcsc.exe	notepad.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

1888 attrib.exe
1492 attrib.exe

pid	process
1888	attrib.exe
1492	attrib.exe

C:\Users\Admin\AppData\Local\Temp\c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe
"C:\Users\Admin\AppData\Local\Temp\c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.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:772

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:4712

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794.exe" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:1492

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:4492

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Sets file to hidden
- Views/modifies file attributes
PID:1888

C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
"C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
2⤵
- Modifies firewall policy service
- Executes dropped EXE
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2572

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:520

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Modify Existing Service

1

T1031

Hidden Files and Directories

2

T1158

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

3

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
Filesize
756KB

MD5
736a628795a481e5c9fe19cc710c1f5d

SHA1
7021224829890d4f894e98f5d0971ae1637a6168

SHA256
c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794

SHA512
940f8db732ac2530405ec7b1037c75caf20fda53bfe1d84096ad50a4e1a094a4d9a11422552efccecd061493dd41349ba1ab57288dcf5b8d8b83e9785dd5948e

Download Submit
C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
Filesize
756KB

MD5
736a628795a481e5c9fe19cc710c1f5d

SHA1
7021224829890d4f894e98f5d0971ae1637a6168

SHA256
c0ad5a53ff38949521ffd0021758553314bc52226457ccd1283c886f7ef15794

SHA512
940f8db732ac2530405ec7b1037c75caf20fda53bfe1d84096ad50a4e1a094a4d9a11422552efccecd061493dd41349ba1ab57288dcf5b8d8b83e9785dd5948e

Download Submit
memory/520-137-0x0000000000000000-mapping.dmp

Download
memory/1492-132-0x0000000000000000-mapping.dmp

Download
memory/1888-133-0x0000000000000000-mapping.dmp

Download
memory/2572-134-0x0000000000000000-mapping.dmp

Download
memory/4492-131-0x0000000000000000-mapping.dmp

Download
memory/4712-130-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads