darkcomet | 0134132faa0cd4ed6702b1799d68bd600f88c30224cdd3eb3131559bc3568f21

Analysis

max time kernel
150s
max time network
121s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
17-04-2024 22:13

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General

Target

f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe
Size

758KB
MD5

f6aeffca0e1cf8e83b427d4f9504d78d
SHA1

260c5fde43873a2a5908d6cbfe8e56756c8c1565
SHA256

0134132faa0cd4ed6702b1799d68bd600f88c30224cdd3eb3131559bc3568f21
SHA512

e94db51a2db03c032e1a3f33059341d4577cb9199828f58bf04ea04d5d9ea1a4eb2f001dd9e6d2279730d772671ebfd2f8f0ba0a9df881e1c498fff27db827e4
SSDEEP

12288:CXhpvNWw276S/DuoeFcfbmiJ99VPhYR5MTSHvLenELrWv1lZw4JuMkwh/kb:snAw2WWeFcfbP9VPSPMTSPL/rWvzq4Ji

Score

10^/10

darkcomet guest16 evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

securityandsafe.no-ip.biz:81

Mutex

DC_MUTEX-3GA9ZCL

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
r2c553wUEgYQ
install
true
offline_keylogger
true
persistence
true
reg_key
MicroUpdate

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:

f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe

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\\MSDCSC\\msdcsc.exe"	f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe

Modifies security service 2 TTPs 2 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Processes:

msdcsc.exeiexplore.exe

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4"	msdcsc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4"	iexplore.exe

Windows security bypass 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

msdcsc.exeiexplore.exe

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

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid	Process
2980	msdcsc.exe

Loads dropped DLL 2 IoCs

Processes:

f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe

pid	Process
2904	f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe
2904	f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe

Windows security modification 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

msdcsc.exe

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

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exemsdcsc.exeiexplore.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	msdcsc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	iexplore.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

msdcsc.exe

description	pid	Process	procid_target
PID 2980 set thread context of 3052	2980	msdcsc.exe	29

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exemsdcsc.exeiexplore.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2904	f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe
Token: SeSecurityPrivilege	2904	f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2904	f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2904	f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2904	f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2904	f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2904	f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2904	f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2904	f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe
Token: SeBackupPrivilege	2904	f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe
Token: SeRestorePrivilege	2904	f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe
Token: SeShutdownPrivilege	2904	f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe
Token: SeDebugPrivilege	2904	f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2904	f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2904	f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2904	f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe
Token: SeUndockPrivilege	2904	f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2904	f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2904	f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2904	f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe
Token: 33	2904	f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe
Token: 34	2904	f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe
Token: 35	2904	f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2980	msdcsc.exe
Token: SeSecurityPrivilege	2980	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2980	msdcsc.exe
Token: SeLoadDriverPrivilege	2980	msdcsc.exe
Token: SeSystemProfilePrivilege	2980	msdcsc.exe
Token: SeSystemtimePrivilege	2980	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2980	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2980	msdcsc.exe
Token: SeCreatePagefilePrivilege	2980	msdcsc.exe
Token: SeBackupPrivilege	2980	msdcsc.exe
Token: SeRestorePrivilege	2980	msdcsc.exe
Token: SeShutdownPrivilege	2980	msdcsc.exe
Token: SeDebugPrivilege	2980	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2980	msdcsc.exe
Token: SeChangeNotifyPrivilege	2980	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2980	msdcsc.exe
Token: SeUndockPrivilege	2980	msdcsc.exe
Token: SeManageVolumePrivilege	2980	msdcsc.exe
Token: SeImpersonatePrivilege	2980	msdcsc.exe
Token: SeCreateGlobalPrivilege	2980	msdcsc.exe
Token: 33	2980	msdcsc.exe
Token: 34	2980	msdcsc.exe
Token: 35	2980	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	3052	iexplore.exe
Token: SeSecurityPrivilege	3052	iexplore.exe
Token: SeTakeOwnershipPrivilege	3052	iexplore.exe
Token: SeLoadDriverPrivilege	3052	iexplore.exe
Token: SeSystemProfilePrivilege	3052	iexplore.exe
Token: SeSystemtimePrivilege	3052	iexplore.exe
Token: SeProfSingleProcessPrivilege	3052	iexplore.exe
Token: SeIncBasePriorityPrivilege	3052	iexplore.exe
Token: SeCreatePagefilePrivilege	3052	iexplore.exe
Token: SeBackupPrivilege	3052	iexplore.exe
Token: SeRestorePrivilege	3052	iexplore.exe
Token: SeShutdownPrivilege	3052	iexplore.exe
Token: SeDebugPrivilege	3052	iexplore.exe
Token: SeSystemEnvironmentPrivilege	3052	iexplore.exe
Token: SeChangeNotifyPrivilege	3052	iexplore.exe
Token: SeRemoteShutdownPrivilege	3052	iexplore.exe
Token: SeUndockPrivilege	3052	iexplore.exe
Token: SeManageVolumePrivilege	3052	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

iexplore.exe

pid	Process
3052	iexplore.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exemsdcsc.exe

description	pid	Process	procid_target
PID 2904 wrote to memory of 2980	2904	f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe	28
PID 2904 wrote to memory of 2980	2904	f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe	28
PID 2904 wrote to memory of 2980	2904	f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe	28
PID 2904 wrote to memory of 2980	2904	f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe	28
PID 2980 wrote to memory of 3052	2980	msdcsc.exe	29
PID 2980 wrote to memory of 3052	2980	msdcsc.exe	29
PID 2980 wrote to memory of 3052	2980	msdcsc.exe	29
PID 2980 wrote to memory of 3052	2980	msdcsc.exe	29
PID 2980 wrote to memory of 3052	2980	msdcsc.exe	29
PID 2980 wrote to memory of 3052	2980	msdcsc.exe	29

C:\Users\Admin\AppData\Local\Temp\f6aeffca0e1cf8e83b427d4f9504d78d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\f6aeffca0e1cf8e83b427d4f9504d78d_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:2904
- C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe
  "C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe"
  2⤵
  - Modifies security service
  - Windows security bypass
  - Executes dropped EXE
  - Windows security modification
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2980
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies security service
    - Windows security bypass
    - Adds Run key to start application
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:3052

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 Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe

Filesize
758KB

MD5
f6aeffca0e1cf8e83b427d4f9504d78d

SHA1
260c5fde43873a2a5908d6cbfe8e56756c8c1565

SHA256
0134132faa0cd4ed6702b1799d68bd600f88c30224cdd3eb3131559bc3568f21

SHA512
e94db51a2db03c032e1a3f33059341d4577cb9199828f58bf04ea04d5d9ea1a4eb2f001dd9e6d2279730d772671ebfd2f8f0ba0a9df881e1c498fff27db827e4

Download Submit
memory/2904-0-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/2904-12-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/2980-13-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2980-16-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/3052-15-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download