darkcomet | 539cdcf76a95338f348555fe6809820cc3d63b97f01cff1525d16825cbfa37d2

Analysis

max time kernel
149s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20250211-en
resource tags

arch:x64arch:x86image:win10v2004-20250211-enlocale:en-usos:windows10-2004-x64system
submitted
11/02/2025, 20:27

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General

Target

JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe
Size

1.3MB
MD5

ea02b64872bf57075eb19b3a7c14721c
SHA1

65829f2c82b58610aa4d12b6459b52fadd27c9bc
SHA256

539cdcf76a95338f348555fe6809820cc3d63b97f01cff1525d16825cbfa37d2
SHA512

1dbd7174585d78de5bfd2c4767d430a9ecd940bd624478c9c4a207010b93ea0ebd97b88f64d35739be0e22582c8b22709b24651cc14311bcb76bb1c5c7e9e47e
SSDEEP

24576:+thEVaPqLDI0VX4SM6cHzvZlU6QXdaMiPNDUvhe:GEVUcDz4S8H7ZlVOaTPNDUc

Score

10^/10

darkcomet guest16 defense_evasion discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

uoku.sytes.net:1604

Mutex

DC_MUTEX-6RX1XUR

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
JmfA2%zA1X/y
install
true
offline_keylogger
true
persistence
true
reg_key
MicroUpdate

rc4.plain

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\\Local\\Temp\\MSDCSC\\msdcsc.exe"	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe

Modifies firewall policy service 3 TTPs 3 IoCs

defense_evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	msdcsc.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	msdcsc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	msdcsc.exe

Disables RegEdit via registry modification 1 IoCs

defense_evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3296967594-3563063956-581523229-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	msdcsc.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3296967594-3563063956-581523229-1000\Control Panel\International\Geo\Nation	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe

Executes dropped EXE 2 IoCs

pid	Process
4476	msdcsc.exe
3568	msdcsc.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-1-5-21-3296967594-3563063956-581523229-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	msdcsc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3296967594-3563063956-581523229-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe

AutoIT Executable 2 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/memory/2820-4-0x0000000000400000-0x0000000000562000-memory.dmp	autoit_exe
behavioral2/memory/4476-31-0x0000000000400000-0x0000000000562000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2820 set thread context of 1120	2820	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe	85
PID 4476 set thread context of 3568	4476	msdcsc.exe	93

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2820-0-0x0000000000400000-0x0000000000562000-memory.dmp	upx
behavioral2/memory/2820-4-0x0000000000400000-0x0000000000562000-memory.dmp	upx
behavioral2/files/0x000b000000023cef-11.dat	upx
behavioral2/memory/4476-22-0x0000000000400000-0x0000000000562000-memory.dmp	upx
behavioral2/memory/4476-31-0x0000000000400000-0x0000000000562000-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 6 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	msdcsc.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	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.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
3704	cmd.exe
1916	PING.EXE

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1916	PING.EXE

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1120	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe
Token: SeSecurityPrivilege	1120	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe
Token: SeTakeOwnershipPrivilege	1120	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe
Token: SeLoadDriverPrivilege	1120	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe
Token: SeSystemProfilePrivilege	1120	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe
Token: SeSystemtimePrivilege	1120	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe
Token: SeProfSingleProcessPrivilege	1120	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe
Token: SeIncBasePriorityPrivilege	1120	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe
Token: SeCreatePagefilePrivilege	1120	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe
Token: SeBackupPrivilege	1120	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe
Token: SeRestorePrivilege	1120	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe
Token: SeShutdownPrivilege	1120	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe
Token: SeDebugPrivilege	1120	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe
Token: SeSystemEnvironmentPrivilege	1120	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe
Token: SeChangeNotifyPrivilege	1120	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe
Token: SeRemoteShutdownPrivilege	1120	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe
Token: SeUndockPrivilege	1120	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe
Token: SeManageVolumePrivilege	1120	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe
Token: SeImpersonatePrivilege	1120	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe
Token: SeCreateGlobalPrivilege	1120	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe
Token: 33	1120	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe
Token: 34	1120	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe
Token: 35	1120	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe
Token: 36	1120	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe
Token: SeIncreaseQuotaPrivilege	3568	msdcsc.exe
Token: SeSecurityPrivilege	3568	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3568	msdcsc.exe
Token: SeLoadDriverPrivilege	3568	msdcsc.exe
Token: SeSystemProfilePrivilege	3568	msdcsc.exe
Token: SeSystemtimePrivilege	3568	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3568	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3568	msdcsc.exe
Token: SeCreatePagefilePrivilege	3568	msdcsc.exe
Token: SeBackupPrivilege	3568	msdcsc.exe
Token: SeRestorePrivilege	3568	msdcsc.exe
Token: SeShutdownPrivilege	3568	msdcsc.exe
Token: SeDebugPrivilege	3568	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3568	msdcsc.exe
Token: SeChangeNotifyPrivilege	3568	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3568	msdcsc.exe
Token: SeUndockPrivilege	3568	msdcsc.exe
Token: SeManageVolumePrivilege	3568	msdcsc.exe
Token: SeImpersonatePrivilege	3568	msdcsc.exe
Token: SeCreateGlobalPrivilege	3568	msdcsc.exe
Token: 33	3568	msdcsc.exe
Token: 34	3568	msdcsc.exe
Token: 35	3568	msdcsc.exe
Token: 36	3568	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3568	msdcsc.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 2820 wrote to memory of 1120	2820	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe	85
PID 2820 wrote to memory of 1120	2820	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe	85
PID 2820 wrote to memory of 1120	2820	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe	85
PID 2820 wrote to memory of 1120	2820	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe	85
PID 2820 wrote to memory of 1120	2820	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe	85
PID 2820 wrote to memory of 1120	2820	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe	85
PID 2820 wrote to memory of 1120	2820	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe	85
PID 2820 wrote to memory of 1120	2820	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe	85
PID 2820 wrote to memory of 1120	2820	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe	85
PID 2820 wrote to memory of 1120	2820	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe	85
PID 2820 wrote to memory of 1120	2820	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe	85
PID 1120 wrote to memory of 3704	1120	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe	89
PID 1120 wrote to memory of 3704	1120	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe	89
PID 1120 wrote to memory of 3704	1120	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe	89
PID 1120 wrote to memory of 4476	1120	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe	91
PID 1120 wrote to memory of 4476	1120	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe	91
PID 1120 wrote to memory of 4476	1120	JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe	91
PID 3704 wrote to memory of 1916	3704	cmd.exe	92
PID 3704 wrote to memory of 1916	3704	cmd.exe	92
PID 3704 wrote to memory of 1916	3704	cmd.exe	92
PID 4476 wrote to memory of 3568	4476	msdcsc.exe	93
PID 4476 wrote to memory of 3568	4476	msdcsc.exe	93
PID 4476 wrote to memory of 3568	4476	msdcsc.exe	93
PID 4476 wrote to memory of 3568	4476	msdcsc.exe	93
PID 4476 wrote to memory of 3568	4476	msdcsc.exe	93
PID 4476 wrote to memory of 3568	4476	msdcsc.exe	93
PID 4476 wrote to memory of 3568	4476	msdcsc.exe	93
PID 4476 wrote to memory of 3568	4476	msdcsc.exe	93
PID 4476 wrote to memory of 3568	4476	msdcsc.exe	93
PID 4476 wrote to memory of 3568	4476	msdcsc.exe	93
PID 4476 wrote to memory of 3568	4476	msdcsc.exe	93

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2820
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe
  "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1120
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 4 && del "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_ea02b64872bf57075eb19b3a7c14721c.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:3704
  - - C:\Windows\SysWOW64\PING.EXE
      ping 127.0.0.1 -n 4
      4⤵
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:1916
- - C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
    "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4476
  - - C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
      "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
      4⤵
      Modifies firewall policy service
      Disables RegEdit via registry modification
      Executes dropped EXE
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:3568

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

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

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

C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe

Filesize
1.3MB

MD5
ea02b64872bf57075eb19b3a7c14721c

SHA1
65829f2c82b58610aa4d12b6459b52fadd27c9bc

SHA256
539cdcf76a95338f348555fe6809820cc3d63b97f01cff1525d16825cbfa37d2

SHA512
1dbd7174585d78de5bfd2c4767d430a9ecd940bd624478c9c4a207010b93ea0ebd97b88f64d35739be0e22582c8b22709b24651cc14311bcb76bb1c5c7e9e47e

Download Submit
memory/1120-21-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1120-1-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1120-2-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1120-3-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1120-5-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1120-6-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2820-4-0x0000000000400000-0x0000000000562000-memory.dmp

Filesize
1.4MB

Download
memory/2820-0-0x0000000000400000-0x0000000000562000-memory.dmp

Filesize
1.4MB

Download
memory/3568-28-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3568-39-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3568-27-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3568-29-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3568-45-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3568-44-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3568-26-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3568-32-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3568-33-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3568-35-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3568-36-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3568-37-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3568-38-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3568-25-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3568-40-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3568-41-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3568-42-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/3568-43-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4476-22-0x0000000000400000-0x0000000000562000-memory.dmp

Filesize
1.4MB

Download
memory/4476-31-0x0000000000400000-0x0000000000562000-memory.dmp

Filesize
1.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads