darkcomet | 93e34d530fe50e4cbca31f57ea1df7a8eee39e50774cec786c2fa45e101a2777

Analysis

max time kernel
141s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
19-12-2024 17:17

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General

Target

ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
Size

797KB
MD5

ffec8e4ca472014f065d5eca601a4279
SHA1

31b1c07fc17803a1370a84f6ba51b74f9366912b
SHA256

93e34d530fe50e4cbca31f57ea1df7a8eee39e50774cec786c2fa45e101a2777
SHA512

0241ed19583319cc8d00b2f563f3625a25092fe80ce8c4016d4db5357c067c53b701e07d0d1b0d247a5915887171336c13663d373f6789471ced14005a964bd8
SSDEEP

24576:3eSb+RNeirGa7DVsPdEzF9GXWk4W7CvcCKK4Zt:5bcNei6AiPqrwWDdEZt

Score

10^/10

darkcomet discovery persistence rat trojan

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:\\Windows\\system32\\Windupdt\\winupdate.exe"	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.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\SystemBiosVersion	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
4952	notepad.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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\messenger = "C:\\Windows\\system32\\Windupdt\\winupdate.exe"	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\messenger = "C:\\Windows\\system32\\Windupdt\\winupdate.exe"	notepad.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Windupdt\winupdate.exe	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\Windupdt\winupdate.exe	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\Windupdt\	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
File opened for modification	C:\Windows\SysWOW64\Windupdt\winupdate.exe	notepad.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2464 set thread context of 3000	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	84

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	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

Checks processor information in registry 2 TTPs 7 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\FeatureSet	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
Key queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
Key value enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
Token: SeSecurityPrivilege	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
Token: SeBackupPrivilege	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
Token: SeRestorePrivilege	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
Token: SeShutdownPrivilege	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
Token: SeDebugPrivilege	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
Token: SeUndockPrivilege	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
Token: 33	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
Token: 34	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
Token: 35	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
Token: 36	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 45 IoCs

description	pid	Process	procid_target
PID 2464 wrote to memory of 2044	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	83
PID 2464 wrote to memory of 2044	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	83
PID 2464 wrote to memory of 2044	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	83
PID 2464 wrote to memory of 2044	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	83
PID 2464 wrote to memory of 2044	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	83
PID 2464 wrote to memory of 2044	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	83
PID 2464 wrote to memory of 2044	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	83
PID 2464 wrote to memory of 2044	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	83
PID 2464 wrote to memory of 2044	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	83
PID 2464 wrote to memory of 2044	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	83
PID 2464 wrote to memory of 2044	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	83
PID 2464 wrote to memory of 2044	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	83
PID 2464 wrote to memory of 2044	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	83
PID 2464 wrote to memory of 2044	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	83
PID 2464 wrote to memory of 2044	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	83
PID 2464 wrote to memory of 2044	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	83
PID 2464 wrote to memory of 2044	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	83
PID 2464 wrote to memory of 2044	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	83
PID 2464 wrote to memory of 2044	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	83
PID 2464 wrote to memory of 2044	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	83
PID 2464 wrote to memory of 2044	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	83
PID 2464 wrote to memory of 2044	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	83
PID 2464 wrote to memory of 2044	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	83
PID 2464 wrote to memory of 3000	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	84
PID 2464 wrote to memory of 3000	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	84
PID 2464 wrote to memory of 3000	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	84
PID 2464 wrote to memory of 3000	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	84
PID 2464 wrote to memory of 3000	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	84
PID 2464 wrote to memory of 4952	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	85
PID 2464 wrote to memory of 4952	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	85
PID 2464 wrote to memory of 4952	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	85
PID 2464 wrote to memory of 4952	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	85
PID 2464 wrote to memory of 4952	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	85
PID 2464 wrote to memory of 4952	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	85
PID 2464 wrote to memory of 4952	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	85
PID 2464 wrote to memory of 4952	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	85
PID 2464 wrote to memory of 4952	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	85
PID 2464 wrote to memory of 4952	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	85
PID 2464 wrote to memory of 4952	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	85
PID 2464 wrote to memory of 4952	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	85
PID 2464 wrote to memory of 4952	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	85
PID 2464 wrote to memory of 4952	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	85
PID 2464 wrote to memory of 4952	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	85
PID 2464 wrote to memory of 4952	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	85
PID 2464 wrote to memory of 4952	2464	ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ffec8e4ca472014f065d5eca601a4279_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Adds Run key to start application
- Drops file in System32 directory
- 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:2464
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Adds Run key to start application
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  PID:2044
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\SysWOW64\explorer.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3000
- C:\Windows\SysWOW64\notepad.exe
  C:\Windows\SysWOW64\notepad.exe
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:4952

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

C:\Windows\SysWOW64\Windupdt\winupdate.exe

Filesize
797KB

MD5
ffec8e4ca472014f065d5eca601a4279

SHA1
31b1c07fc17803a1370a84f6ba51b74f9366912b

SHA256
93e34d530fe50e4cbca31f57ea1df7a8eee39e50774cec786c2fa45e101a2777

SHA512
0241ed19583319cc8d00b2f563f3625a25092fe80ce8c4016d4db5357c067c53b701e07d0d1b0d247a5915887171336c13663d373f6789471ced14005a964bd8

Download Submit
memory/2044-4-0x0000000000F30000-0x0000000000F31000-memory.dmp

Filesize
4KB

Download
memory/2464-13-0x0000000013140000-0x00000000132BE000-memory.dmp

Filesize
1.5MB

Download
memory/2464-3-0x0000000013140000-0x00000000132BE000-memory.dmp

Filesize
1.5MB

Download
memory/2464-1-0x0000000013141000-0x00000000131F6000-memory.dmp

Filesize
724KB

Download
memory/2464-14-0x0000000013141000-0x00000000131F6000-memory.dmp

Filesize
724KB

Download
memory/2464-0-0x0000000013140000-0x00000000132BE000-memory.dmp

Filesize
1.5MB

Download
memory/3000-12-0x0000000013140000-0x00000000132BE000-memory.dmp

Filesize
1.5MB

Download
memory/3000-11-0x0000000013140000-0x00000000132BE000-memory.dmp

Filesize
1.5MB

Download
memory/3000-15-0x0000000013140000-0x00000000132BE000-memory.dmp

Filesize
1.5MB

Download
memory/3000-16-0x0000000013140000-0x00000000132BE000-memory.dmp

Filesize
1.5MB

Download
memory/3000-20-0x0000000013140000-0x00000000132BE000-memory.dmp

Filesize
1.5MB

Download
memory/4952-9-0x0000000000990000-0x0000000000991000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads