darkcomet | 5356f94fc2d25126dc80b7552da5c311d90318cb9f89bacf296dee3ce0d26e2f

General

Target

0x000a000000012314-64.exe
Size

658KB
MD5

d80debf77a79e5d605f91e2a589ea1d5
SHA1

9a33e569d2b50491dd09f3bebde1e5c11643e60a
SHA256

5356f94fc2d25126dc80b7552da5c311d90318cb9f89bacf296dee3ce0d26e2f
SHA512

e2b04e4eadef192237011280a6967b9063ca3c605f77a0100119332ca036d56a9e500abd2168a07a5fd9f5a24b35ad3dae45b99fccd716274a6a994b7fc8e1d7
SSDEEP

12288:S9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/h9:+Z1xuVVjfFoynPaVBUR8f+kN10EBH

Score

10^/10

darkcomet guest16 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

185.140.53.117:1985

Mutex

DC_MUTEX-QFGHKXR

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
hW0MZpETNScR
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:

0x000a000000012314-64.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"	0x000a000000012314-64.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

2876 msdcsc.exe

pid	process
2876	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:

0x000a000000012314-64.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	0x000a000000012314-64.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

0x000a000000012314-64.exemsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	0x000a000000012314-64.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\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

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

0x000a000000012314-64.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	3932	0x000a000000012314-64.exe
Token: SeSecurityPrivilege	3932	0x000a000000012314-64.exe
Token: SeTakeOwnershipPrivilege	3932	0x000a000000012314-64.exe
Token: SeLoadDriverPrivilege	3932	0x000a000000012314-64.exe
Token: SeSystemProfilePrivilege	3932	0x000a000000012314-64.exe
Token: SeSystemtimePrivilege	3932	0x000a000000012314-64.exe
Token: SeProfSingleProcessPrivilege	3932	0x000a000000012314-64.exe
Token: SeIncBasePriorityPrivilege	3932	0x000a000000012314-64.exe
Token: SeCreatePagefilePrivilege	3932	0x000a000000012314-64.exe
Token: SeBackupPrivilege	3932	0x000a000000012314-64.exe
Token: SeRestorePrivilege	3932	0x000a000000012314-64.exe
Token: SeShutdownPrivilege	3932	0x000a000000012314-64.exe
Token: SeDebugPrivilege	3932	0x000a000000012314-64.exe
Token: SeSystemEnvironmentPrivilege	3932	0x000a000000012314-64.exe
Token: SeChangeNotifyPrivilege	3932	0x000a000000012314-64.exe
Token: SeRemoteShutdownPrivilege	3932	0x000a000000012314-64.exe
Token: SeUndockPrivilege	3932	0x000a000000012314-64.exe
Token: SeManageVolumePrivilege	3932	0x000a000000012314-64.exe
Token: SeImpersonatePrivilege	3932	0x000a000000012314-64.exe
Token: SeCreateGlobalPrivilege	3932	0x000a000000012314-64.exe
Token: 33	3932	0x000a000000012314-64.exe
Token: 34	3932	0x000a000000012314-64.exe
Token: 35	3932	0x000a000000012314-64.exe
Token: 36	3932	0x000a000000012314-64.exe
Token: SeIncreaseQuotaPrivilege	2876	msdcsc.exe
Token: SeSecurityPrivilege	2876	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2876	msdcsc.exe
Token: SeLoadDriverPrivilege	2876	msdcsc.exe
Token: SeSystemProfilePrivilege	2876	msdcsc.exe
Token: SeSystemtimePrivilege	2876	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2876	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2876	msdcsc.exe
Token: SeCreatePagefilePrivilege	2876	msdcsc.exe
Token: SeBackupPrivilege	2876	msdcsc.exe
Token: SeRestorePrivilege	2876	msdcsc.exe
Token: SeShutdownPrivilege	2876	msdcsc.exe
Token: SeDebugPrivilege	2876	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2876	msdcsc.exe
Token: SeChangeNotifyPrivilege	2876	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2876	msdcsc.exe
Token: SeUndockPrivilege	2876	msdcsc.exe
Token: SeManageVolumePrivilege	2876	msdcsc.exe
Token: SeImpersonatePrivilege	2876	msdcsc.exe
Token: SeCreateGlobalPrivilege	2876	msdcsc.exe
Token: 33	2876	msdcsc.exe
Token: 34	2876	msdcsc.exe
Token: 35	2876	msdcsc.exe
Token: 36	2876	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid process

2876 msdcsc.exe

pid	process
2876	msdcsc.exe

Suspicious use of WriteProcessMemory 25 IoCs

Processes:

0x000a000000012314-64.exemsdcsc.exe

description	pid	process	target process
PID 3932 wrote to memory of 2876	3932	0x000a000000012314-64.exe	msdcsc.exe
PID 3932 wrote to memory of 2876	3932	0x000a000000012314-64.exe	msdcsc.exe
PID 3932 wrote to memory of 2876	3932	0x000a000000012314-64.exe	msdcsc.exe
PID 2876 wrote to memory of 3068	2876	msdcsc.exe	notepad.exe
PID 2876 wrote to memory of 3068	2876	msdcsc.exe	notepad.exe
PID 2876 wrote to memory of 3068	2876	msdcsc.exe	notepad.exe
PID 2876 wrote to memory of 3068	2876	msdcsc.exe	notepad.exe
PID 2876 wrote to memory of 3068	2876	msdcsc.exe	notepad.exe
PID 2876 wrote to memory of 3068	2876	msdcsc.exe	notepad.exe
PID 2876 wrote to memory of 3068	2876	msdcsc.exe	notepad.exe
PID 2876 wrote to memory of 3068	2876	msdcsc.exe	notepad.exe
PID 2876 wrote to memory of 3068	2876	msdcsc.exe	notepad.exe
PID 2876 wrote to memory of 3068	2876	msdcsc.exe	notepad.exe
PID 2876 wrote to memory of 3068	2876	msdcsc.exe	notepad.exe
PID 2876 wrote to memory of 3068	2876	msdcsc.exe	notepad.exe
PID 2876 wrote to memory of 3068	2876	msdcsc.exe	notepad.exe
PID 2876 wrote to memory of 3068	2876	msdcsc.exe	notepad.exe
PID 2876 wrote to memory of 3068	2876	msdcsc.exe	notepad.exe
PID 2876 wrote to memory of 3068	2876	msdcsc.exe	notepad.exe
PID 2876 wrote to memory of 3068	2876	msdcsc.exe	notepad.exe
PID 2876 wrote to memory of 3068	2876	msdcsc.exe	notepad.exe
PID 2876 wrote to memory of 3068	2876	msdcsc.exe	notepad.exe
PID 2876 wrote to memory of 3068	2876	msdcsc.exe	notepad.exe
PID 2876 wrote to memory of 3068	2876	msdcsc.exe	notepad.exe
PID 2876 wrote to memory of 3068	2876	msdcsc.exe	notepad.exe

C:\Users\Admin\AppData\Local\Temp\0x000a000000012314-64.exe
"C:\Users\Admin\AppData\Local\Temp\0x000a000000012314-64.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3932

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 use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2876

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:3068

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

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
658KB

MD5
d80debf77a79e5d605f91e2a589ea1d5

SHA1
9a33e569d2b50491dd09f3bebde1e5c11643e60a

SHA256
5356f94fc2d25126dc80b7552da5c311d90318cb9f89bacf296dee3ce0d26e2f

SHA512
e2b04e4eadef192237011280a6967b9063ca3c605f77a0100119332ca036d56a9e500abd2168a07a5fd9f5a24b35ad3dae45b99fccd716274a6a994b7fc8e1d7

Download Submit
C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
Filesize
658KB

MD5
d80debf77a79e5d605f91e2a589ea1d5

SHA1
9a33e569d2b50491dd09f3bebde1e5c11643e60a

SHA256
5356f94fc2d25126dc80b7552da5c311d90318cb9f89bacf296dee3ce0d26e2f

SHA512
e2b04e4eadef192237011280a6967b9063ca3c605f77a0100119332ca036d56a9e500abd2168a07a5fd9f5a24b35ad3dae45b99fccd716274a6a994b7fc8e1d7

Download Submit
memory/2876-132-0x0000000000000000-mapping.dmp

Download
memory/3068-135-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads