darkcomet | 9972eff09050a9bc8272c1588ba2b7a864b74fe4591e838cc742e28a8adccf16

Analysis

max time kernel
150s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
03-01-2025 02:51

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General

Target

JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe
Size

242KB
MD5

69c81a9e564cd5b1f43cd95d797db43c
SHA1

76ffdbf25c97048bc69c808bea3cf11c4e625d7e
SHA256

9972eff09050a9bc8272c1588ba2b7a864b74fe4591e838cc742e28a8adccf16
SHA512

5a437c23f74b293f1e1818ee456d2f9b98db0e2830343d839fd8e10a012844ed340c507067b599a2c37e89008cfcf0ff5c29f7a267ef41502031ad60a2476007
SSDEEP

6144:y1iJcYtR1HsvpSHY7KoSrfTNBuzZZcA1wnOLrMM4IX:ykHcpSHY7VSrfT2/czO3HPX

Score

10^/10

darkcomet discovery persistence rat trojan upx

Malware Config

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Darkcomet family
darkcomet

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Programs\\Microsoft\\windows\\winupdate.exe"	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	explorer.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Programs\\Microsoft\\windows\\winupdate.exe"	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\Programs\\Microsoft\\windows\\winupdate.exe"	notepad.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2228 set thread context of 2032	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe	83

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2228-0-0x0000000013140000-0x00000000131FC000-memory.dmp	upx
behavioral2/memory/2032-6-0x0000000013140000-0x00000000131FC000-memory.dmp	upx
behavioral2/memory/2032-7-0x0000000013140000-0x00000000131FC000-memory.dmp	upx
behavioral2/memory/2032-9-0x0000000013140000-0x00000000131FC000-memory.dmp	upx
behavioral2/memory/2032-8-0x0000000013140000-0x00000000131FC000-memory.dmp	upx
behavioral2/memory/2228-12-0x0000000013140000-0x00000000131FC000-memory.dmp	upx
behavioral2/memory/2032-11-0x0000000013140000-0x00000000131FC000-memory.dmp	upx
behavioral2/memory/2032-14-0x0000000013140000-0x00000000131FC000-memory.dmp	upx
behavioral2/memory/2032-18-0x0000000013140000-0x00000000131FC000-memory.dmp	upx
behavioral2/memory/2032-16-0x0000000013140000-0x00000000131FC000-memory.dmp	upx
behavioral2/memory/2032-17-0x0000000013140000-0x00000000131FC000-memory.dmp	upx
behavioral2/memory/2032-19-0x0000000013140000-0x00000000131FC000-memory.dmp	upx

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

Checks processor information in registry 2 TTPs 8 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	explorer.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	explorer.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2032	explorer.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe
Token: SeSecurityPrivilege	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe
Token: SeTakeOwnershipPrivilege	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe
Token: SeLoadDriverPrivilege	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe
Token: SeSystemProfilePrivilege	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe
Token: SeSystemtimePrivilege	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe
Token: SeProfSingleProcessPrivilege	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe
Token: SeIncBasePriorityPrivilege	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe
Token: SeCreatePagefilePrivilege	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe
Token: SeBackupPrivilege	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe
Token: SeRestorePrivilege	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe
Token: SeShutdownPrivilege	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe
Token: SeDebugPrivilege	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe
Token: SeSystemEnvironmentPrivilege	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe
Token: SeChangeNotifyPrivilege	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe
Token: SeRemoteShutdownPrivilege	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe
Token: SeUndockPrivilege	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe
Token: SeManageVolumePrivilege	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe
Token: SeImpersonatePrivilege	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe
Token: SeCreateGlobalPrivilege	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe
Token: 33	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe
Token: 34	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe
Token: 35	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe
Token: 36	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe
Token: SeIncreaseQuotaPrivilege	2032	explorer.exe
Token: SeSecurityPrivilege	2032	explorer.exe
Token: SeTakeOwnershipPrivilege	2032	explorer.exe
Token: SeLoadDriverPrivilege	2032	explorer.exe
Token: SeSystemProfilePrivilege	2032	explorer.exe
Token: SeSystemtimePrivilege	2032	explorer.exe
Token: SeProfSingleProcessPrivilege	2032	explorer.exe
Token: SeIncBasePriorityPrivilege	2032	explorer.exe
Token: SeCreatePagefilePrivilege	2032	explorer.exe
Token: SeBackupPrivilege	2032	explorer.exe
Token: SeRestorePrivilege	2032	explorer.exe
Token: SeShutdownPrivilege	2032	explorer.exe
Token: SeDebugPrivilege	2032	explorer.exe
Token: SeSystemEnvironmentPrivilege	2032	explorer.exe
Token: SeChangeNotifyPrivilege	2032	explorer.exe
Token: SeRemoteShutdownPrivilege	2032	explorer.exe
Token: SeUndockPrivilege	2032	explorer.exe
Token: SeManageVolumePrivilege	2032	explorer.exe
Token: SeImpersonatePrivilege	2032	explorer.exe
Token: SeCreateGlobalPrivilege	2032	explorer.exe
Token: 33	2032	explorer.exe
Token: 34	2032	explorer.exe
Token: 35	2032	explorer.exe
Token: 36	2032	explorer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2032	explorer.exe

Suspicious use of WriteProcessMemory 50 IoCs

description	pid	Process	procid_target
PID 2228 wrote to memory of 4836	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe	82
PID 2228 wrote to memory of 4836	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe	82
PID 2228 wrote to memory of 4836	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe	82
PID 2228 wrote to memory of 4836	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe	82
PID 2228 wrote to memory of 4836	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe	82
PID 2228 wrote to memory of 4836	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe	82
PID 2228 wrote to memory of 4836	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe	82
PID 2228 wrote to memory of 4836	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe	82
PID 2228 wrote to memory of 4836	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe	82
PID 2228 wrote to memory of 4836	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe	82
PID 2228 wrote to memory of 4836	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe	82
PID 2228 wrote to memory of 4836	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe	82
PID 2228 wrote to memory of 4836	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe	82
PID 2228 wrote to memory of 4836	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe	82
PID 2228 wrote to memory of 4836	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe	82
PID 2228 wrote to memory of 4836	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe	82
PID 2228 wrote to memory of 4836	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe	82
PID 2228 wrote to memory of 4836	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe	82
PID 2228 wrote to memory of 4836	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe	82
PID 2228 wrote to memory of 4836	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe	82
PID 2228 wrote to memory of 4836	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe	82
PID 2228 wrote to memory of 4836	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe	82
PID 2228 wrote to memory of 4836	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe	82
PID 2228 wrote to memory of 2032	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe	83
PID 2228 wrote to memory of 2032	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe	83
PID 2228 wrote to memory of 2032	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe	83
PID 2228 wrote to memory of 2032	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe	83
PID 2228 wrote to memory of 2032	2228	JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe	83
PID 2032 wrote to memory of 4416	2032	explorer.exe	84
PID 2032 wrote to memory of 4416	2032	explorer.exe	84
PID 2032 wrote to memory of 4416	2032	explorer.exe	84
PID 2032 wrote to memory of 4416	2032	explorer.exe	84
PID 2032 wrote to memory of 4416	2032	explorer.exe	84
PID 2032 wrote to memory of 4416	2032	explorer.exe	84
PID 2032 wrote to memory of 4416	2032	explorer.exe	84
PID 2032 wrote to memory of 4416	2032	explorer.exe	84
PID 2032 wrote to memory of 4416	2032	explorer.exe	84
PID 2032 wrote to memory of 4416	2032	explorer.exe	84
PID 2032 wrote to memory of 4416	2032	explorer.exe	84
PID 2032 wrote to memory of 4416	2032	explorer.exe	84
PID 2032 wrote to memory of 4416	2032	explorer.exe	84
PID 2032 wrote to memory of 4416	2032	explorer.exe	84
PID 2032 wrote to memory of 4416	2032	explorer.exe	84
PID 2032 wrote to memory of 4416	2032	explorer.exe	84
PID 2032 wrote to memory of 4416	2032	explorer.exe	84
PID 2032 wrote to memory of 4416	2032	explorer.exe	84
PID 2032 wrote to memory of 4416	2032	explorer.exe	84
PID 2032 wrote to memory of 4416	2032	explorer.exe	84
PID 2032 wrote to memory of 4416	2032	explorer.exe	84
PID 2032 wrote to memory of 4416	2032	explorer.exe	84

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_69c81a9e564cd5b1f43cd95d797db43c.exe"
1⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2228
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  PID:4836
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\SysWOW64\explorer.exe"
  2⤵
  - Checks BIOS information in registry
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2032
- - C:\Windows\SysWOW64\notepad.exe
    C:\Windows\SysWOW64\notepad.exe
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4416

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2032-11-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download
memory/2032-14-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download
memory/2032-19-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download
memory/2032-6-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download
memory/2032-17-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download
memory/2032-9-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download
memory/2032-16-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download
memory/2032-8-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download
memory/2032-7-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download
memory/2032-13-0x0000000002EB0000-0x0000000002EB1000-memory.dmp

Filesize
4KB

Download
memory/2032-18-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download
memory/2228-12-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download
memory/2228-1-0x0000000000A50000-0x0000000000A51000-memory.dmp

Filesize
4KB

Download
memory/2228-0-0x0000000013140000-0x00000000131FC000-memory.dmp

Filesize
752KB

Download
memory/4416-15-0x00000000012B0000-0x00000000012B1000-memory.dmp

Filesize
4KB

Download
memory/4836-3-0x0000000000C10000-0x0000000000C11000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads