darkcomet | f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514

General

Target

f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe
Size

266KB
MD5

ffc54622e9daa09c0726b5694167c61b
SHA1

000b2b6115dc37258f2dc55106c57fbf298644af
SHA256

f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514
SHA512

64f6218a73c173481a828c81e98c85818934db85f408330ae70207f16359a9f0ea40adc2d3a53a22174e9da6f864727ae01db1225e6816e70910ba595e7a5cff

Score

10^/10

darkcomet evasion persistence rat trojan

Malware Config

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:

f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.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"	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

2016 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
2016	msdcsc.exe

Loads dropped DLL 2 IoCs

Processes:

f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe

pid	process
336	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe
336	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exemsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\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 46 IoCs

Processes:

f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	336	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe
Token: SeSecurityPrivilege	336	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe
Token: SeTakeOwnershipPrivilege	336	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe
Token: SeLoadDriverPrivilege	336	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe
Token: SeSystemProfilePrivilege	336	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe
Token: SeSystemtimePrivilege	336	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe
Token: SeProfSingleProcessPrivilege	336	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe
Token: SeIncBasePriorityPrivilege	336	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe
Token: SeCreatePagefilePrivilege	336	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe
Token: SeBackupPrivilege	336	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe
Token: SeRestorePrivilege	336	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe
Token: SeShutdownPrivilege	336	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe
Token: SeDebugPrivilege	336	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe
Token: SeSystemEnvironmentPrivilege	336	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe
Token: SeChangeNotifyPrivilege	336	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe
Token: SeRemoteShutdownPrivilege	336	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe
Token: SeUndockPrivilege	336	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe
Token: SeManageVolumePrivilege	336	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe
Token: SeImpersonatePrivilege	336	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe
Token: SeCreateGlobalPrivilege	336	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe
Token: 33	336	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe
Token: 34	336	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe
Token: 35	336	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe
Token: SeIncreaseQuotaPrivilege	2016	msdcsc.exe
Token: SeSecurityPrivilege	2016	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2016	msdcsc.exe
Token: SeLoadDriverPrivilege	2016	msdcsc.exe
Token: SeSystemProfilePrivilege	2016	msdcsc.exe
Token: SeSystemtimePrivilege	2016	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2016	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2016	msdcsc.exe
Token: SeCreatePagefilePrivilege	2016	msdcsc.exe
Token: SeBackupPrivilege	2016	msdcsc.exe
Token: SeRestorePrivilege	2016	msdcsc.exe
Token: SeShutdownPrivilege	2016	msdcsc.exe
Token: SeDebugPrivilege	2016	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2016	msdcsc.exe
Token: SeChangeNotifyPrivilege	2016	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2016	msdcsc.exe
Token: SeUndockPrivilege	2016	msdcsc.exe
Token: SeManageVolumePrivilege	2016	msdcsc.exe
Token: SeImpersonatePrivilege	2016	msdcsc.exe
Token: SeCreateGlobalPrivilege	2016	msdcsc.exe
Token: 33	2016	msdcsc.exe
Token: 34	2016	msdcsc.exe
Token: 35	2016	msdcsc.exe

Suspicious use of WriteProcessMemory 35 IoCs

Processes:

f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.execmd.exemsdcsc.exe

description	pid	process	target process
PID 336 wrote to memory of 1840	336	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe	cmd.exe
PID 336 wrote to memory of 1840	336	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe	cmd.exe
PID 336 wrote to memory of 1840	336	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe	cmd.exe
PID 336 wrote to memory of 1840	336	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe	cmd.exe
PID 1840 wrote to memory of 1996	1840	cmd.exe	attrib.exe
PID 1840 wrote to memory of 1996	1840	cmd.exe	attrib.exe
PID 1840 wrote to memory of 1996	1840	cmd.exe	attrib.exe
PID 1840 wrote to memory of 1996	1840	cmd.exe	attrib.exe
PID 336 wrote to memory of 2016	336	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe	msdcsc.exe
PID 336 wrote to memory of 2016	336	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe	msdcsc.exe
PID 336 wrote to memory of 2016	336	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe	msdcsc.exe
PID 336 wrote to memory of 2016	336	f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe	msdcsc.exe
PID 2016 wrote to memory of 1960	2016	msdcsc.exe	notepad.exe
PID 2016 wrote to memory of 1960	2016	msdcsc.exe	notepad.exe
PID 2016 wrote to memory of 1960	2016	msdcsc.exe	notepad.exe
PID 2016 wrote to memory of 1960	2016	msdcsc.exe	notepad.exe
PID 2016 wrote to memory of 1960	2016	msdcsc.exe	notepad.exe
PID 2016 wrote to memory of 1960	2016	msdcsc.exe	notepad.exe
PID 2016 wrote to memory of 1960	2016	msdcsc.exe	notepad.exe
PID 2016 wrote to memory of 1960	2016	msdcsc.exe	notepad.exe
PID 2016 wrote to memory of 1960	2016	msdcsc.exe	notepad.exe
PID 2016 wrote to memory of 1960	2016	msdcsc.exe	notepad.exe
PID 2016 wrote to memory of 1960	2016	msdcsc.exe	notepad.exe
PID 2016 wrote to memory of 1960	2016	msdcsc.exe	notepad.exe
PID 2016 wrote to memory of 1960	2016	msdcsc.exe	notepad.exe
PID 2016 wrote to memory of 1960	2016	msdcsc.exe	notepad.exe
PID 2016 wrote to memory of 1960	2016	msdcsc.exe	notepad.exe
PID 2016 wrote to memory of 1960	2016	msdcsc.exe	notepad.exe
PID 2016 wrote to memory of 1960	2016	msdcsc.exe	notepad.exe
PID 2016 wrote to memory of 1960	2016	msdcsc.exe	notepad.exe
PID 2016 wrote to memory of 1960	2016	msdcsc.exe	notepad.exe
PID 2016 wrote to memory of 1960	2016	msdcsc.exe	notepad.exe
PID 2016 wrote to memory of 1960	2016	msdcsc.exe	notepad.exe
PID 2016 wrote to memory of 1960	2016	msdcsc.exe	notepad.exe
PID 2016 wrote to memory of 1960	2016	msdcsc.exe	notepad.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

1996 attrib.exe

pid	process
1996	attrib.exe

C:\Users\Admin\AppData\Local\Temp\f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe
"C:\Users\Admin\AppData\Local\Temp\f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:336

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe" +s +h
2⤵
- Suspicious use of WriteProcessMemory
PID:1840

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514.exe" +s +h
3⤵
- Views/modifies file attributes
PID:1996

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
"C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2016

C:\Windows\SysWOW64\notepad.exe
notepad
3⤵
PID:1960

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
ffc54622e9daa09c0726b5694167c61b

SHA1
000b2b6115dc37258f2dc55106c57fbf298644af

SHA256
f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514

SHA512
64f6218a73c173481a828c81e98c85818934db85f408330ae70207f16359a9f0ea40adc2d3a53a22174e9da6f864727ae01db1225e6816e70910ba595e7a5cff

Download Submit
C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
ffc54622e9daa09c0726b5694167c61b

SHA1
000b2b6115dc37258f2dc55106c57fbf298644af

SHA256
f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514

SHA512
64f6218a73c173481a828c81e98c85818934db85f408330ae70207f16359a9f0ea40adc2d3a53a22174e9da6f864727ae01db1225e6816e70910ba595e7a5cff

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
ffc54622e9daa09c0726b5694167c61b

SHA1
000b2b6115dc37258f2dc55106c57fbf298644af

SHA256
f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514

SHA512
64f6218a73c173481a828c81e98c85818934db85f408330ae70207f16359a9f0ea40adc2d3a53a22174e9da6f864727ae01db1225e6816e70910ba595e7a5cff

Download Submit
\Users\Admin\Documents\MSDCSC\msdcsc.exe
MD5
ffc54622e9daa09c0726b5694167c61b

SHA1
000b2b6115dc37258f2dc55106c57fbf298644af

SHA256
f59392bc9a917137068cdc81dc75a2a749b081ea0ecdc1ce8103b57fa0328514

SHA512
64f6218a73c173481a828c81e98c85818934db85f408330ae70207f16359a9f0ea40adc2d3a53a22174e9da6f864727ae01db1225e6816e70910ba595e7a5cff

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

Download
memory/1960-7-0x0000000000000000-mapping.dmp

Download
memory/1960-9-0x0000000000000000-mapping.dmp

Download
memory/1960-8-0x0000000000010000-0x0000000000011000-memory.dmp

Filesize
4KB

Download
memory/1996-1-0x0000000000000000-mapping.dmp

Download
memory/2016-4-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads