darkcomet | d340f8163f599b8f52eda452caf625c2036db62d4eca7e5bca8f7b095a1edcde

Analysis

max time kernel
145s
max time network
149s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
28-06-2024 13:20

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General

Target

1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe
Size

243KB
MD5

1a466065bc9997c4757e4739ed07fb42
SHA1

ede4dcfa02f62dd2f5de5e7987cbe64871ee2f66
SHA256

d340f8163f599b8f52eda452caf625c2036db62d4eca7e5bca8f7b095a1edcde
SHA512

e29cc862a941d667b0af0bb7c84815392bc9bc904e65d2ed0eb1de1bfcf216dd7e7e1579680bc1c2647a4e50aadaa9c57ba7e52fa55db284c5acd756e9fad077
SSDEEP

6144:QFLFE+xd3Fyprbf6ZJr8DPBUDthcOWpa0pBRi08Y6:QPd1kcF8NUDjcOWpaabis

Score

10^/10

darkcomet evasion persistence rat trojan upx

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

T1547.004

Modify Registry

T1112

Processes:

1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.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\\Roaming\\Windupdt\\winupdate.exe"	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe

Windows security bypass 2 TTPs 1 IoCs
evasion trojan

Disable or Modify Tools
T1562.001

Modify Registry
T1112

Processes:

winupdate.exe

description ioc process

Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" winupdate.exe
Sets file to hidden 1 TTPs 2 IoCs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1564.001

Processes:

attrib.exeattrib.exe

pid process

2776 attrib.exe
2884 attrib.exe
Deletes itself 1 IoCs

Processes:

notepad.exe

pid process

2648 notepad.exe
Executes dropped EXE 1 IoCs

Processes:

winupdate.exe

pid process

2688 winupdate.exe
Loads dropped DLL 4 IoCs

Processes:

1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exewinupdate.exe

pid process

2860 1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe
2688 winupdate.exe
2688 winupdate.exe
2688 winupdate.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	winupdate.exe

pid	process
2776	attrib.exe
2884	attrib.exe

pid	process
2648	notepad.exe

pid	process
2688	winupdate.exe

pid	process
2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe
2688	winupdate.exe
2688	winupdate.exe
2688	winupdate.exe

UPX packed file 12 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/2860-0-0x0000000013140000-0x00000000131FB000-memory.dmp	upx
\Users\Admin\AppData\Roaming\Windupdt\winupdate.exe	upx
behavioral1/memory/2688-67-0x0000000013140000-0x00000000131FB000-memory.dmp	upx
behavioral1/memory/2860-63-0x0000000013140000-0x00000000131FB000-memory.dmp	upx
behavioral1/memory/2688-71-0x0000000000850000-0x000000000090B000-memory.dmp	upx
behavioral1/memory/2688-73-0x0000000013140000-0x00000000131FB000-memory.dmp	upx
behavioral1/memory/2688-74-0x0000000013140000-0x00000000131FB000-memory.dmp	upx
behavioral1/memory/2688-75-0x0000000013140000-0x00000000131FB000-memory.dmp	upx
behavioral1/memory/2688-76-0x0000000013140000-0x00000000131FB000-memory.dmp	upx
behavioral1/memory/2688-77-0x0000000013140000-0x00000000131FB000-memory.dmp	upx
behavioral1/memory/2688-78-0x0000000013140000-0x00000000131FB000-memory.dmp	upx
behavioral1/memory/2688-80-0x0000000013140000-0x00000000131FB000-memory.dmp	upx

Windows security modification 2 TTPs 1 IoCs
evasion trojan

Disable or Modify Tools
T1562.001

Modify Registry
T1112

Processes:

winupdate.exe

description ioc process

Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" winupdate.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	winupdate.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exenotepad.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Users\\Admin\\AppData\\Roaming\\Windupdt\\winupdate.exe"	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Users\\Admin\\AppData\\Roaming\\Windupdt\\winupdate.exe"	notepad.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exewinupdate.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe
Token: SeSecurityPrivilege	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe
Token: SeBackupPrivilege	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe
Token: SeRestorePrivilege	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe
Token: SeShutdownPrivilege	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe
Token: SeDebugPrivilege	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe
Token: SeUndockPrivilege	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe
Token: 33	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe
Token: 34	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe
Token: 35	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2688	winupdate.exe
Token: SeSecurityPrivilege	2688	winupdate.exe
Token: SeTakeOwnershipPrivilege	2688	winupdate.exe
Token: SeLoadDriverPrivilege	2688	winupdate.exe
Token: SeSystemProfilePrivilege	2688	winupdate.exe
Token: SeSystemtimePrivilege	2688	winupdate.exe
Token: SeProfSingleProcessPrivilege	2688	winupdate.exe
Token: SeIncBasePriorityPrivilege	2688	winupdate.exe
Token: SeCreatePagefilePrivilege	2688	winupdate.exe
Token: SeBackupPrivilege	2688	winupdate.exe
Token: SeRestorePrivilege	2688	winupdate.exe
Token: SeShutdownPrivilege	2688	winupdate.exe
Token: SeDebugPrivilege	2688	winupdate.exe
Token: SeSystemEnvironmentPrivilege	2688	winupdate.exe
Token: SeChangeNotifyPrivilege	2688	winupdate.exe
Token: SeRemoteShutdownPrivilege	2688	winupdate.exe
Token: SeUndockPrivilege	2688	winupdate.exe
Token: SeManageVolumePrivilege	2688	winupdate.exe
Token: SeImpersonatePrivilege	2688	winupdate.exe
Token: SeCreateGlobalPrivilege	2688	winupdate.exe
Token: 33	2688	winupdate.exe
Token: 34	2688	winupdate.exe
Token: 35	2688	winupdate.exe

Suspicious use of WriteProcessMemory 57 IoCs

Processes:

1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe

description	pid	process	target process
PID 2860 wrote to memory of 2156	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2156	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2156	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2156	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2156	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2156	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2156	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2156	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2156	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2156	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2156	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2156	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2156	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2156	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2156	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2156	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2156	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2156	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2156	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2156	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2156	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2156	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2156	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2156	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2776	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	attrib.exe
PID 2860 wrote to memory of 2776	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	attrib.exe
PID 2860 wrote to memory of 2776	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	attrib.exe
PID 2860 wrote to memory of 2776	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	attrib.exe
PID 2860 wrote to memory of 2884	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	attrib.exe
PID 2860 wrote to memory of 2884	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	attrib.exe
PID 2860 wrote to memory of 2884	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	attrib.exe
PID 2860 wrote to memory of 2884	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	attrib.exe
PID 2860 wrote to memory of 2688	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	winupdate.exe
PID 2860 wrote to memory of 2688	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	winupdate.exe
PID 2860 wrote to memory of 2688	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	winupdate.exe
PID 2860 wrote to memory of 2688	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	winupdate.exe
PID 2860 wrote to memory of 2688	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	winupdate.exe
PID 2860 wrote to memory of 2688	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	winupdate.exe
PID 2860 wrote to memory of 2688	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	winupdate.exe
PID 2860 wrote to memory of 2648	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2648	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2648	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2648	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2648	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2648	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2648	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2648	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2648	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2648	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2648	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2648	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2648	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2648	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2648	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2648	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2648	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe
PID 2860 wrote to memory of 2648	2860	1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe	notepad.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1564.001

Processes:

attrib.exeattrib.exe

pid process

2776 attrib.exe
2884 attrib.exe

pid	process
2776	attrib.exe
2884	attrib.exe

C:\Users\Admin\AppData\Local\Temp\1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2860

C:\Windows\SysWOW64\notepad.exe
notepad
2⤵
- Adds Run key to start application
PID:2156

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp\1a466065bc9997c4757e4739ed07fb42_JaffaCakes118.exe" +s +h
2⤵
- Sets file to hidden
- Views/modifies file attributes
PID:2776

C:\Windows\SysWOW64\attrib.exe
attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
2⤵
- Sets file to hidden
- Views/modifies file attributes
PID:2884

C:\Users\Admin\AppData\Roaming\Windupdt\winupdate.exe
"C:\Users\Admin\AppData\Roaming\Windupdt\winupdate.exe"
2⤵
- Windows security bypass
- Executes dropped EXE
- Loads dropped DLL
- Windows security modification
- Suspicious use of AdjustPrivilegeToken
PID:2688

C:\Windows\SysWOW64\notepad.exe
C:\Windows\SysWOW64\notepad.exe
2⤵
- Deletes itself
PID:2648

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads

\Users\Admin\AppData\Roaming\Windupdt\winupdate.exe
Filesize
243KB

MD5
1a466065bc9997c4757e4739ed07fb42

SHA1
ede4dcfa02f62dd2f5de5e7987cbe64871ee2f66

SHA256
d340f8163f599b8f52eda452caf625c2036db62d4eca7e5bca8f7b095a1edcde

SHA512
e29cc862a941d667b0af0bb7c84815392bc9bc904e65d2ed0eb1de1bfcf216dd7e7e1579680bc1c2647a4e50aadaa9c57ba7e52fa55db284c5acd756e9fad077

Download Submit
memory/2156-32-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2156-3-0x00000000000B0000-0x00000000000B1000-memory.dmp

Filesize
4KB

Download
memory/2648-61-0x0000000000200000-0x0000000000201000-memory.dmp

Filesize
4KB

Download
memory/2688-71-0x0000000000850000-0x000000000090B000-memory.dmp

Filesize
748KB

Download
memory/2688-67-0x0000000013140000-0x00000000131FB000-memory.dmp

Filesize
748KB

Download
memory/2688-72-0x0000000000850000-0x000000000090B000-memory.dmp

Filesize
748KB

Download
memory/2688-73-0x0000000013140000-0x00000000131FB000-memory.dmp

Filesize
748KB

Download
memory/2688-74-0x0000000013140000-0x00000000131FB000-memory.dmp

Filesize
748KB

Download
memory/2688-75-0x0000000013140000-0x00000000131FB000-memory.dmp

Filesize
748KB

Download
memory/2688-76-0x0000000013140000-0x00000000131FB000-memory.dmp

Filesize
748KB

Download
memory/2688-77-0x0000000013140000-0x00000000131FB000-memory.dmp

Filesize
748KB

Download
memory/2688-78-0x0000000013140000-0x00000000131FB000-memory.dmp

Filesize
748KB

Download
memory/2688-80-0x0000000013140000-0x00000000131FB000-memory.dmp

Filesize
748KB

Download
memory/2860-63-0x0000000013140000-0x00000000131FB000-memory.dmp

Filesize
748KB

Download
memory/2860-1-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/2860-0-0x0000000013140000-0x00000000131FB000-memory.dmp

Filesize
748KB

Download