darkcomet | e9d3a58d421ecd9c8c57f7220c4ee420e52bf449194d35b367aa45c863bd0f66

General

Target

e9d3a58d421ecd9c8c57f7220c4ee420e52bf449194d35b367aa45c863bd0f66.exe
Size

559KB
MD5

c55c34449fd71a2a2ebd9fa8d9d3c279
SHA1

bf04419202022f6b226d0769fca952a7b1b94ca2
SHA256

e9d3a58d421ecd9c8c57f7220c4ee420e52bf449194d35b367aa45c863bd0f66
SHA512

1923e4024a37fcee70661532c111e82a444d75d34447515f91ddc8064431193a4eb9f2bb625d7cc5d04f05ccbd6a510ffc82bb0a94478060f6f28abcbc87b927

Score

10^/10

darkcomet persistence rat trojan upx

Malware Config

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Executes dropped EXE 2 IoCs

Processes:

mcsft.exemcsft.exe

pid process

1968 mcsft.exe
2192 mcsft.exe

pid	process
1968	mcsft.exe
2192	mcsft.exe

UPX packed file 7 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

yara_rule
upx
C:\Users\Admin\AppData\Roaming\mcsft.exe	upx
C:\Users\Admin\AppData\Roaming\mcsft.exe	upx
behavioral2/memory/2192-11-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
C:\Users\Admin\AppData\Roaming\mcsft.exe	upx
behavioral2/memory/2192-15-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/2192-16-0x0000000000400000-0x00000000004B5000-memory.dmp	upx

Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.

Query Registry
T1012

System Information Discovery
T1082

Processes:

mcsft.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate mcsft.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	mcsft.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

reg.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1985363256-3005190890-1182679451-1000\Software\Microsoft\Windows\CurrentVersion\Run\Mcrosoft = "C:\\Users\\Admin\\AppData\\Roaming\\mcsft.exe"	reg.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

mcsft.exe

description pid process target process

PID 1968 set thread context of 2192 1968 mcsft.exe mcsft.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	pid	process	target process
PID 1968 set thread context of 2192	1968	mcsft.exe	mcsft.exe

Checks processor information in registry 2 TTPs 4 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

mcsft.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	mcsft.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	mcsft.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	mcsft.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	mcsft.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

mcsft.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier mcsft.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	mcsft.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes:

mcsft.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	2192	mcsft.exe
Token: SeSecurityPrivilege	2192	mcsft.exe
Token: SeTakeOwnershipPrivilege	2192	mcsft.exe
Token: SeLoadDriverPrivilege	2192	mcsft.exe
Token: SeSystemProfilePrivilege	2192	mcsft.exe
Token: SeSystemtimePrivilege	2192	mcsft.exe
Token: SeProfSingleProcessPrivilege	2192	mcsft.exe
Token: SeIncBasePriorityPrivilege	2192	mcsft.exe
Token: SeCreatePagefilePrivilege	2192	mcsft.exe
Token: SeBackupPrivilege	2192	mcsft.exe
Token: SeRestorePrivilege	2192	mcsft.exe
Token: SeShutdownPrivilege	2192	mcsft.exe
Token: SeDebugPrivilege	2192	mcsft.exe
Token: SeSystemEnvironmentPrivilege	2192	mcsft.exe
Token: SeChangeNotifyPrivilege	2192	mcsft.exe
Token: SeRemoteShutdownPrivilege	2192	mcsft.exe
Token: SeUndockPrivilege	2192	mcsft.exe
Token: SeManageVolumePrivilege	2192	mcsft.exe
Token: SeImpersonatePrivilege	2192	mcsft.exe
Token: SeCreateGlobalPrivilege	2192	mcsft.exe
Token: 33	2192	mcsft.exe
Token: 34	2192	mcsft.exe
Token: 35	2192	mcsft.exe
Token: 36	2192	mcsft.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

e9d3a58d421ecd9c8c57f7220c4ee420e52bf449194d35b367aa45c863bd0f66.exemcsft.exemcsft.exe

pid process

640 e9d3a58d421ecd9c8c57f7220c4ee420e52bf449194d35b367aa45c863bd0f66.exe
1968 mcsft.exe
2192 mcsft.exe

pid	process
640	e9d3a58d421ecd9c8c57f7220c4ee420e52bf449194d35b367aa45c863bd0f66.exe
1968	mcsft.exe
2192	mcsft.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

e9d3a58d421ecd9c8c57f7220c4ee420e52bf449194d35b367aa45c863bd0f66.execmd.exemcsft.exe

description	pid	process	target process
PID 640 wrote to memory of 1068	640	e9d3a58d421ecd9c8c57f7220c4ee420e52bf449194d35b367aa45c863bd0f66.exe	cmd.exe
PID 640 wrote to memory of 1068	640	e9d3a58d421ecd9c8c57f7220c4ee420e52bf449194d35b367aa45c863bd0f66.exe	cmd.exe
PID 640 wrote to memory of 1068	640	e9d3a58d421ecd9c8c57f7220c4ee420e52bf449194d35b367aa45c863bd0f66.exe	cmd.exe
PID 1068 wrote to memory of 196	1068	cmd.exe	reg.exe
PID 1068 wrote to memory of 196	1068	cmd.exe	reg.exe
PID 1068 wrote to memory of 196	1068	cmd.exe	reg.exe
PID 640 wrote to memory of 1968	640	e9d3a58d421ecd9c8c57f7220c4ee420e52bf449194d35b367aa45c863bd0f66.exe	mcsft.exe
PID 640 wrote to memory of 1968	640	e9d3a58d421ecd9c8c57f7220c4ee420e52bf449194d35b367aa45c863bd0f66.exe	mcsft.exe
PID 640 wrote to memory of 1968	640	e9d3a58d421ecd9c8c57f7220c4ee420e52bf449194d35b367aa45c863bd0f66.exe	mcsft.exe
PID 1968 wrote to memory of 2192	1968	mcsft.exe	mcsft.exe
PID 1968 wrote to memory of 2192	1968	mcsft.exe	mcsft.exe
PID 1968 wrote to memory of 2192	1968	mcsft.exe	mcsft.exe
PID 1968 wrote to memory of 2192	1968	mcsft.exe	mcsft.exe
PID 1968 wrote to memory of 2192	1968	mcsft.exe	mcsft.exe
PID 1968 wrote to memory of 2192	1968	mcsft.exe	mcsft.exe
PID 1968 wrote to memory of 2192	1968	mcsft.exe	mcsft.exe
PID 1968 wrote to memory of 2192	1968	mcsft.exe	mcsft.exe

C:\Users\Admin\AppData\Local\Temp\e9d3a58d421ecd9c8c57f7220c4ee420e52bf449194d35b367aa45c863bd0f66.exe
"C:\Users\Admin\AppData\Local\Temp\e9d3a58d421ecd9c8c57f7220c4ee420e52bf449194d35b367aa45c863bd0f66.exe"
1⤵
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:640

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\pNkVQ.bat" "
2⤵
- Suspicious use of WriteProcessMemory
PID:1068

C:\Windows\SysWOW64\reg.exe
REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "Mcrosoft" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\mcsft.exe" /f
3⤵
- Adds Run key to start application
PID:196

C:\Users\Admin\AppData\Roaming\mcsft.exe
"C:\Users\Admin\AppData\Roaming\mcsft.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1968

C:\Users\Admin\AppData\Roaming\mcsft.exe
C:\Users\Admin\AppData\Roaming\mcsft.exe
3⤵
- Executes dropped EXE
- Checks BIOS information in registry
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2192

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

4

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\pNkVQ.bat
MD5
a5feca573884d76f559b996d45e8ad9a

SHA1
0e81a993f3af4e31d60653dc2513186f0495f1c8

SHA256
c98e20d46d6465febb5d29cfab51241521ea5d6cd621f5e18b9b7d6fbfac3f0f

SHA512
a9239648b5f15eac4d4151b6e1bdc81065eeaeb101404c2a0126f03bc87f1e6a57206bfa07a44379e9d3bba889e4497a9991ff41fb109099b01512df3dc3cbda

Download Submit
C:\Users\Admin\AppData\Roaming\mcsft.exe
MD5
ed15f5d968e218b9775944dd231d064a

SHA1
e8f202c520f0631cc1cd82255cf623da3a8bc978

SHA256
c9ab6141b8e9045377daf7ccae367d569661f50e4bffc28a05ca6c53a28188b7

SHA512
642e2efe537b923d5a346054f31194a6b7e7b0e24407873018776a327ed9c1c128047d8c5554b8c05dfdd47592e7a45ee4ec35d0b12382ce535c968997cdad45

Download Submit
C:\Users\Admin\AppData\Roaming\mcsft.exe
MD5
ed15f5d968e218b9775944dd231d064a

SHA1
e8f202c520f0631cc1cd82255cf623da3a8bc978

SHA256
c9ab6141b8e9045377daf7ccae367d569661f50e4bffc28a05ca6c53a28188b7

SHA512
642e2efe537b923d5a346054f31194a6b7e7b0e24407873018776a327ed9c1c128047d8c5554b8c05dfdd47592e7a45ee4ec35d0b12382ce535c968997cdad45

Download Submit
C:\Users\Admin\AppData\Roaming\mcsft.exe
MD5
ed15f5d968e218b9775944dd231d064a

SHA1
e8f202c520f0631cc1cd82255cf623da3a8bc978

SHA256
c9ab6141b8e9045377daf7ccae367d569661f50e4bffc28a05ca6c53a28188b7

SHA512
642e2efe537b923d5a346054f31194a6b7e7b0e24407873018776a327ed9c1c128047d8c5554b8c05dfdd47592e7a45ee4ec35d0b12382ce535c968997cdad45

Download Submit
memory/196-4-0x0000000000000000-mapping.dmp

Download
memory/1068-2-0x0000000000000000-mapping.dmp

Download
memory/1968-5-0x0000000000000000-mapping.dmp

Download
memory/1968-8-0x0000000074760000-0x00000000747F3000-memory.dmp

Filesize
588KB

Download
memory/2192-11-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2192-12-0x00000000004B3320-mapping.dmp

Download
memory/2192-14-0x0000000074760000-0x00000000747F3000-memory.dmp

Filesize
588KB

Download
memory/2192-15-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/2192-16-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads