darkcomet | 8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1

General

Target

8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe
Size

658KB
MD5

ed648fd6199693419b348bde3477c6b8
SHA1

289b13ef04fe88efb0cc9131c183d924dcfe1c75
SHA256

8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1
SHA512

461be60ece2bc57899fd6c9f4f57dcf3d51488f43782a3637fa0deca6140610a5d8b4d133c8253d23824fc7bd1941e605d3c20b266394e1763a6d35785e98fea

Score

10^/10

darkcomet all evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

all

C2

127.0.0.1:1604

Mutex

DC_MUTEX-TXHMS77

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
8Z63PmylbyiK
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:

8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.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"	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

3172 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
3172	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:

8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\Control Panel\International\Geo\Nation	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.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"	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.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:

8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

msdcsc.exe

pid process

3172 msdcsc.exe

pid	process
3172	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1404	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe
Token: SeSecurityPrivilege	1404	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe
Token: SeTakeOwnershipPrivilege	1404	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe
Token: SeLoadDriverPrivilege	1404	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe
Token: SeSystemProfilePrivilege	1404	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe
Token: SeSystemtimePrivilege	1404	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe
Token: SeProfSingleProcessPrivilege	1404	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe
Token: SeIncBasePriorityPrivilege	1404	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe
Token: SeCreatePagefilePrivilege	1404	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe
Token: SeBackupPrivilege	1404	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe
Token: SeRestorePrivilege	1404	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe
Token: SeShutdownPrivilege	1404	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe
Token: SeDebugPrivilege	1404	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe
Token: SeSystemEnvironmentPrivilege	1404	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe
Token: SeChangeNotifyPrivilege	1404	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe
Token: SeRemoteShutdownPrivilege	1404	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe
Token: SeUndockPrivilege	1404	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe
Token: SeManageVolumePrivilege	1404	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe
Token: SeImpersonatePrivilege	1404	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe
Token: SeCreateGlobalPrivilege	1404	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe
Token: 33	1404	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe
Token: 34	1404	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe
Token: 35	1404	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe
Token: 36	1404	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe
Token: SeIncreaseQuotaPrivilege	3172	msdcsc.exe
Token: SeSecurityPrivilege	3172	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3172	msdcsc.exe
Token: SeLoadDriverPrivilege	3172	msdcsc.exe
Token: SeSystemProfilePrivilege	3172	msdcsc.exe
Token: SeSystemtimePrivilege	3172	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3172	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3172	msdcsc.exe
Token: SeCreatePagefilePrivilege	3172	msdcsc.exe
Token: SeBackupPrivilege	3172	msdcsc.exe
Token: SeRestorePrivilege	3172	msdcsc.exe
Token: SeShutdownPrivilege	3172	msdcsc.exe
Token: SeDebugPrivilege	3172	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3172	msdcsc.exe
Token: SeChangeNotifyPrivilege	3172	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3172	msdcsc.exe
Token: SeUndockPrivilege	3172	msdcsc.exe
Token: SeManageVolumePrivilege	3172	msdcsc.exe
Token: SeImpersonatePrivilege	3172	msdcsc.exe
Token: SeCreateGlobalPrivilege	3172	msdcsc.exe
Token: 33	3172	msdcsc.exe
Token: 34	3172	msdcsc.exe
Token: 35	3172	msdcsc.exe
Token: 36	3172	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

3172 msdcsc.exe

pid	process
3172	msdcsc.exe

Suspicious use of WriteProcessMemory 37 IoCs

Processes:

8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.execmd.execmd.exemsdcsc.exe

description	pid	process	target process
PID 1404 wrote to memory of 920	1404	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe	cmd.exe
PID 1404 wrote to memory of 920	1404	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe	cmd.exe
PID 1404 wrote to memory of 920	1404	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe	cmd.exe
PID 1404 wrote to memory of 2952	1404	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe	cmd.exe
PID 1404 wrote to memory of 2952	1404	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe	cmd.exe
PID 1404 wrote to memory of 2952	1404	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe	cmd.exe
PID 920 wrote to memory of 604	920	cmd.exe	attrib.exe
PID 920 wrote to memory of 604	920	cmd.exe	attrib.exe
PID 920 wrote to memory of 604	920	cmd.exe	attrib.exe
PID 2952 wrote to memory of 3192	2952	cmd.exe	attrib.exe
PID 2952 wrote to memory of 3192	2952	cmd.exe	attrib.exe
PID 2952 wrote to memory of 3192	2952	cmd.exe	attrib.exe
PID 1404 wrote to memory of 3172	1404	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe	msdcsc.exe
PID 1404 wrote to memory of 3172	1404	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe	msdcsc.exe
PID 1404 wrote to memory of 3172	1404	8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe	msdcsc.exe
PID 3172 wrote to memory of 2288	3172	msdcsc.exe	notepad.exe
PID 3172 wrote to memory of 2288	3172	msdcsc.exe	notepad.exe
PID 3172 wrote to memory of 2288	3172	msdcsc.exe	notepad.exe
PID 3172 wrote to memory of 2288	3172	msdcsc.exe	notepad.exe
PID 3172 wrote to memory of 2288	3172	msdcsc.exe	notepad.exe
PID 3172 wrote to memory of 2288	3172	msdcsc.exe	notepad.exe
PID 3172 wrote to memory of 2288	3172	msdcsc.exe	notepad.exe
PID 3172 wrote to memory of 2288	3172	msdcsc.exe	notepad.exe
PID 3172 wrote to memory of 2288	3172	msdcsc.exe	notepad.exe
PID 3172 wrote to memory of 2288	3172	msdcsc.exe	notepad.exe
PID 3172 wrote to memory of 2288	3172	msdcsc.exe	notepad.exe
PID 3172 wrote to memory of 2288	3172	msdcsc.exe	notepad.exe
PID 3172 wrote to memory of 2288	3172	msdcsc.exe	notepad.exe
PID 3172 wrote to memory of 2288	3172	msdcsc.exe	notepad.exe
PID 3172 wrote to memory of 2288	3172	msdcsc.exe	notepad.exe
PID 3172 wrote to memory of 2288	3172	msdcsc.exe	notepad.exe
PID 3172 wrote to memory of 2288	3172	msdcsc.exe	notepad.exe
PID 3172 wrote to memory of 2288	3172	msdcsc.exe	notepad.exe
PID 3172 wrote to memory of 2288	3172	msdcsc.exe	notepad.exe
PID 3172 wrote to memory of 2288	3172	msdcsc.exe	notepad.exe
PID 3172 wrote to memory of 2288	3172	msdcsc.exe	notepad.exe
PID 3172 wrote to memory of 2288	3172	msdcsc.exe	notepad.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

3192 attrib.exe
604 attrib.exe

pid	process
3192	attrib.exe
604	attrib.exe

C:\Users\Admin\AppData\Local\Temp\8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe
"C:\Users\Admin\AppData\Local\Temp\8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.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:1404

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:920

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1.exe" +s +h
3⤵
- Views/modifies file attributes
PID:604

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:2952

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
3⤵
- Views/modifies file attributes
PID:3192

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:3172

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:2288

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
ed648fd6199693419b348bde3477c6b8

SHA1
289b13ef04fe88efb0cc9131c183d924dcfe1c75

SHA256
8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1

SHA512
461be60ece2bc57899fd6c9f4f57dcf3d51488f43782a3637fa0deca6140610a5d8b4d133c8253d23824fc7bd1941e605d3c20b266394e1763a6d35785e98fea

Download Submit
C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
MD5
ed648fd6199693419b348bde3477c6b8

SHA1
289b13ef04fe88efb0cc9131c183d924dcfe1c75

SHA256
8ee7e2417bc13dfaadd514daa45ce52d9f1838ce47fd7429105117f5b06930f1

SHA512
461be60ece2bc57899fd6c9f4f57dcf3d51488f43782a3637fa0deca6140610a5d8b4d133c8253d23824fc7bd1941e605d3c20b266394e1763a6d35785e98fea

Download Submit
memory/604-117-0x0000000000000000-mapping.dmp

Download
memory/920-115-0x0000000000000000-mapping.dmp

Download
memory/1404-114-0x0000000000770000-0x0000000000793000-memory.dmp

Filesize
140KB

Download
memory/2288-122-0x0000000000000000-mapping.dmp

Download
memory/2288-124-0x0000000000160000-0x0000000000161000-memory.dmp

Filesize
4KB

Download
memory/2952-116-0x0000000000000000-mapping.dmp

Download
memory/3172-119-0x0000000000000000-mapping.dmp

Download
memory/3172-123-0x0000000000750000-0x0000000000751000-memory.dmp

Filesize
4KB

Download
memory/3192-118-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads