darkcomet | 5a70d8b487c09a757e4edd118d30ac9c37d8fe24b0009289c79e060446144fd9

Analysis

max time kernel
141s
max time network
141s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03-01-2025 18:42

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General

Target

JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe
Size

687KB
MD5

6eb71d39333e2eddb8d4387f4693e810
SHA1

1a871240a1ade30e60c42442d780a246ac3b8be0
SHA256

5a70d8b487c09a757e4edd118d30ac9c37d8fe24b0009289c79e060446144fd9
SHA512

beb5d7a9a5f59d8f996bb093e323fde8b52df97b5124881fde19b0d2985d99ce75f3398ce3ca3ea9e2f638fde24bbaab53649af9ae1a447101400e424cf1d77e
SSDEEP

12288:AUcrY8driIQHG2D1axkPKdbo4vp+II3993kdqmeCdgb0oU+XpZyjUpPy31c:jWY8BiIwG2BJ94vp+I09Voqmh+5ZyjcC

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:\\Users\\Admin\\AppData\\Roaming\\Windupdt\\winupdate.exe"	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe

Deletes itself 1 IoCs

pid	Process
2960	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
1740	winupdate.exe

Loads dropped DLL 4 IoCs

pid	Process
2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe
1740	winupdate.exe
1740	winupdate.exe
1740	winupdate.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-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Users\\Admin\\AppData\\Roaming\\Windupdt\\winupdate.exe"	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\Users\\Admin\\AppData\\Roaming\\Windupdt\\winupdate.exe"	winupdate.exe

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2592-0-0x0000000000400000-0x0000000000526000-memory.dmp	upx
behavioral1/files/0x0008000000016dd0-8.dat	upx
behavioral1/memory/2592-17-0x0000000000400000-0x0000000000526000-memory.dmp	upx
behavioral1/memory/1740-19-0x0000000000400000-0x0000000000526000-memory.dmp	upx
behavioral1/memory/1740-20-0x0000000000B00000-0x0000000000C26000-memory.dmp	upx
behavioral1/memory/1740-23-0x0000000000400000-0x0000000000526000-memory.dmp	upx
behavioral1/memory/1740-25-0x0000000000400000-0x0000000000526000-memory.dmp	upx
behavioral1/memory/1740-27-0x0000000000400000-0x0000000000526000-memory.dmp	upx
behavioral1/memory/1740-29-0x0000000000400000-0x0000000000526000-memory.dmp	upx
behavioral1/memory/1740-31-0x0000000000400000-0x0000000000526000-memory.dmp	upx
behavioral1/memory/1740-33-0x0000000000400000-0x0000000000526000-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	winupdate.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2764	PING.EXE
2960	cmd.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2764	PING.EXE

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe
Token: SeSecurityPrivilege	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe
Token: SeTakeOwnershipPrivilege	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe
Token: SeLoadDriverPrivilege	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe
Token: SeSystemProfilePrivilege	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe
Token: SeSystemtimePrivilege	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe
Token: SeProfSingleProcessPrivilege	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe
Token: SeIncBasePriorityPrivilege	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe
Token: SeCreatePagefilePrivilege	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe
Token: SeBackupPrivilege	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe
Token: SeRestorePrivilege	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe
Token: SeShutdownPrivilege	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe
Token: SeDebugPrivilege	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe
Token: SeSystemEnvironmentPrivilege	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe
Token: SeChangeNotifyPrivilege	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe
Token: SeRemoteShutdownPrivilege	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe
Token: SeUndockPrivilege	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe
Token: SeManageVolumePrivilege	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe
Token: SeImpersonatePrivilege	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe
Token: SeCreateGlobalPrivilege	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe
Token: 33	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe
Token: 34	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe
Token: 35	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe
Token: SeIncreaseQuotaPrivilege	1740	winupdate.exe
Token: SeSecurityPrivilege	1740	winupdate.exe
Token: SeTakeOwnershipPrivilege	1740	winupdate.exe
Token: SeLoadDriverPrivilege	1740	winupdate.exe
Token: SeSystemProfilePrivilege	1740	winupdate.exe
Token: SeSystemtimePrivilege	1740	winupdate.exe
Token: SeProfSingleProcessPrivilege	1740	winupdate.exe
Token: SeIncBasePriorityPrivilege	1740	winupdate.exe
Token: SeCreatePagefilePrivilege	1740	winupdate.exe
Token: SeBackupPrivilege	1740	winupdate.exe
Token: SeRestorePrivilege	1740	winupdate.exe
Token: SeShutdownPrivilege	1740	winupdate.exe
Token: SeDebugPrivilege	1740	winupdate.exe
Token: SeSystemEnvironmentPrivilege	1740	winupdate.exe
Token: SeChangeNotifyPrivilege	1740	winupdate.exe
Token: SeRemoteShutdownPrivilege	1740	winupdate.exe
Token: SeUndockPrivilege	1740	winupdate.exe
Token: SeManageVolumePrivilege	1740	winupdate.exe
Token: SeImpersonatePrivilege	1740	winupdate.exe
Token: SeCreateGlobalPrivilege	1740	winupdate.exe
Token: 33	1740	winupdate.exe
Token: 34	1740	winupdate.exe
Token: 35	1740	winupdate.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1740	winupdate.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2592 wrote to memory of 1740	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe	31
PID 2592 wrote to memory of 1740	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe	31
PID 2592 wrote to memory of 1740	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe	31
PID 2592 wrote to memory of 1740	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe	31
PID 2592 wrote to memory of 1740	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe	31
PID 2592 wrote to memory of 1740	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe	31
PID 2592 wrote to memory of 1740	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe	31
PID 2592 wrote to memory of 2960	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe	32
PID 2592 wrote to memory of 2960	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe	32
PID 2592 wrote to memory of 2960	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe	32
PID 2592 wrote to memory of 2960	2592	JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe	32
PID 2960 wrote to memory of 2764	2960	cmd.exe	34
PID 2960 wrote to memory of 2764	2960	cmd.exe	34
PID 2960 wrote to memory of 2764	2960	cmd.exe	34
PID 2960 wrote to memory of 2764	2960	cmd.exe	34

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2592
- C:\Users\Admin\AppData\Roaming\Windupdt\winupdate.exe
  "C:\Users\Admin\AppData\Roaming\Windupdt\winupdate.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1740
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 5 > NUL&del "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6eb71d39333e2eddb8d4387f4693e810.exe"
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2960
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 5
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2764

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

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Roaming\Windupdt\winupdate.exe

Filesize
687KB

MD5
6eb71d39333e2eddb8d4387f4693e810

SHA1
1a871240a1ade30e60c42442d780a246ac3b8be0

SHA256
5a70d8b487c09a757e4edd118d30ac9c37d8fe24b0009289c79e060446144fd9

SHA512
beb5d7a9a5f59d8f996bb093e323fde8b52df97b5124881fde19b0d2985d99ce75f3398ce3ca3ea9e2f638fde24bbaab53649af9ae1a447101400e424cf1d77e

Download Submit
memory/1740-20-0x0000000000B00000-0x0000000000C26000-memory.dmp

Filesize
1.1MB

Download
memory/1740-18-0x0000000000B00000-0x0000000000C26000-memory.dmp

Filesize
1.1MB

Download
memory/1740-19-0x0000000000400000-0x0000000000526000-memory.dmp

Filesize
1.1MB

Download
memory/1740-23-0x0000000000400000-0x0000000000526000-memory.dmp

Filesize
1.1MB

Download
memory/1740-25-0x0000000000400000-0x0000000000526000-memory.dmp

Filesize
1.1MB

Download
memory/1740-27-0x0000000000400000-0x0000000000526000-memory.dmp

Filesize
1.1MB

Download
memory/1740-29-0x0000000000400000-0x0000000000526000-memory.dmp

Filesize
1.1MB

Download
memory/1740-31-0x0000000000400000-0x0000000000526000-memory.dmp

Filesize
1.1MB

Download
memory/1740-33-0x0000000000400000-0x0000000000526000-memory.dmp

Filesize
1.1MB

Download
memory/2592-1-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2592-17-0x0000000000400000-0x0000000000526000-memory.dmp

Filesize
1.1MB

Download
memory/2592-0-0x0000000000400000-0x0000000000526000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads