darkcomet | 619ccf5b3f6fe85d1887645e84ff4d480c7f53a0903a00fee2b6a4a3cd46a458

Analysis

max time kernel
149s
max time network
16s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
10-12-2024 00:02

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General

Target

dc1c009149df32f04373b3519dfdbc8b_JaffaCakes118.exe
Size

1.1MB
MD5

dc1c009149df32f04373b3519dfdbc8b
SHA1

aef5fd7a3cd4351d96c53f4bece6a0cdf7835029
SHA256

619ccf5b3f6fe85d1887645e84ff4d480c7f53a0903a00fee2b6a4a3cd46a458
SHA512

1ec3919720658c495ead64f44f1eda2f666216f664cbad60890be18746b1426b242691d726ee51de6b48142e61945d148c21334453b23646ead33b2a482828d0
SSDEEP

12288:DaWzgMg7v3qnCiMErQohh0F4CCJ8lnyC8idoH8DVqlXueHrvNI8qNHiUXdWTJAAT:maHMv6CorjqnyC8klDuHbNInHRC2WhZ

Score

10^/10

darkcomet guest16 discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

darktestsh123.no-ip.info:1604

Mutex

DC_MUTEX-XCY52F9

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
7U95T83DNYtl
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
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\\MSDCSC\\msdcsc.exe"	uncrypted.exe

Modifies firewall policy service 3 TTPs 3 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

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

Modifies security service 2 TTPs 1 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

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

Windows security bypass 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

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\UpdatesDisableNotify = "1"	msdcsc.exe

Disables RegEdit via registry modification 1 IoCs

evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	msdcsc.exe

Disables Task Manager via registry modification
evasion

Executes dropped EXE 2 IoCs

pid	Process
2924	uncrypted.exe
2984	msdcsc.exe

Loads dropped DLL 7 IoCs

pid	Process
848	dc1c009149df32f04373b3519dfdbc8b_JaffaCakes118.exe
848	dc1c009149df32f04373b3519dfdbc8b_JaffaCakes118.exe
848	dc1c009149df32f04373b3519dfdbc8b_JaffaCakes118.exe
848	dc1c009149df32f04373b3519dfdbc8b_JaffaCakes118.exe
848	dc1c009149df32f04373b3519dfdbc8b_JaffaCakes118.exe
2924	uncrypted.exe
2924	uncrypted.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

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\UpdatesDisableNotify = "1"	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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\system32\\MSDCSC\\msdcsc.exe"	uncrypted.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\system32\\MSDCSC\\msdcsc.exe"	msdcsc.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/memory/848-0-0x0000000000400000-0x00000000004D5000-memory.dmp	autoit_exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\MSDCSC\msdcsc.exe	uncrypted.exe
File opened for modification	C:\Windows\SysWOW64\MSDCSC\msdcsc.exe	uncrypted.exe
File opened for modification	C:\Windows\SysWOW64\MSDCSC\	uncrypted.exe

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 3 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	dc1c009149df32f04373b3519dfdbc8b_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	uncrypted.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2924	uncrypted.exe
Token: SeSecurityPrivilege	2924	uncrypted.exe
Token: SeTakeOwnershipPrivilege	2924	uncrypted.exe
Token: SeLoadDriverPrivilege	2924	uncrypted.exe
Token: SeSystemProfilePrivilege	2924	uncrypted.exe
Token: SeSystemtimePrivilege	2924	uncrypted.exe
Token: SeProfSingleProcessPrivilege	2924	uncrypted.exe
Token: SeIncBasePriorityPrivilege	2924	uncrypted.exe
Token: SeCreatePagefilePrivilege	2924	uncrypted.exe
Token: SeBackupPrivilege	2924	uncrypted.exe
Token: SeRestorePrivilege	2924	uncrypted.exe
Token: SeShutdownPrivilege	2924	uncrypted.exe
Token: SeDebugPrivilege	2924	uncrypted.exe
Token: SeSystemEnvironmentPrivilege	2924	uncrypted.exe
Token: SeChangeNotifyPrivilege	2924	uncrypted.exe
Token: SeRemoteShutdownPrivilege	2924	uncrypted.exe
Token: SeUndockPrivilege	2924	uncrypted.exe
Token: SeManageVolumePrivilege	2924	uncrypted.exe
Token: SeImpersonatePrivilege	2924	uncrypted.exe
Token: SeCreateGlobalPrivilege	2924	uncrypted.exe
Token: 33	2924	uncrypted.exe
Token: 34	2924	uncrypted.exe
Token: 35	2924	uncrypted.exe
Token: SeIncreaseQuotaPrivilege	2984	msdcsc.exe
Token: SeSecurityPrivilege	2984	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2984	msdcsc.exe
Token: SeLoadDriverPrivilege	2984	msdcsc.exe
Token: SeSystemProfilePrivilege	2984	msdcsc.exe
Token: SeSystemtimePrivilege	2984	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2984	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2984	msdcsc.exe
Token: SeCreatePagefilePrivilege	2984	msdcsc.exe
Token: SeBackupPrivilege	2984	msdcsc.exe
Token: SeRestorePrivilege	2984	msdcsc.exe
Token: SeShutdownPrivilege	2984	msdcsc.exe
Token: SeDebugPrivilege	2984	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2984	msdcsc.exe
Token: SeChangeNotifyPrivilege	2984	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2984	msdcsc.exe
Token: SeUndockPrivilege	2984	msdcsc.exe
Token: SeManageVolumePrivilege	2984	msdcsc.exe
Token: SeImpersonatePrivilege	2984	msdcsc.exe
Token: SeCreateGlobalPrivilege	2984	msdcsc.exe
Token: 33	2984	msdcsc.exe
Token: 34	2984	msdcsc.exe
Token: 35	2984	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2984	msdcsc.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 848 wrote to memory of 2924	848	dc1c009149df32f04373b3519dfdbc8b_JaffaCakes118.exe	28
PID 848 wrote to memory of 2924	848	dc1c009149df32f04373b3519dfdbc8b_JaffaCakes118.exe	28
PID 848 wrote to memory of 2924	848	dc1c009149df32f04373b3519dfdbc8b_JaffaCakes118.exe	28
PID 848 wrote to memory of 2924	848	dc1c009149df32f04373b3519dfdbc8b_JaffaCakes118.exe	28
PID 2924 wrote to memory of 2984	2924	uncrypted.exe	29
PID 2924 wrote to memory of 2984	2924	uncrypted.exe	29
PID 2924 wrote to memory of 2984	2924	uncrypted.exe	29
PID 2924 wrote to memory of 2984	2924	uncrypted.exe	29
PID 2984 wrote to memory of 2712	2984	msdcsc.exe	30
PID 2984 wrote to memory of 2712	2984	msdcsc.exe	30
PID 2984 wrote to memory of 2712	2984	msdcsc.exe	30
PID 2984 wrote to memory of 2712	2984	msdcsc.exe	30
PID 2984 wrote to memory of 2728	2984	msdcsc.exe	31
PID 2984 wrote to memory of 2728	2984	msdcsc.exe	31
PID 2984 wrote to memory of 2728	2984	msdcsc.exe	31
PID 2984 wrote to memory of 2728	2984	msdcsc.exe	31

C:\Users\Admin\AppData\Local\Temp\dc1c009149df32f04373b3519dfdbc8b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\dc1c009149df32f04373b3519dfdbc8b_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:848
- C:\Users\Admin\AppData\Local\Temp\uncrypted.exe
  "C:\Users\Admin\AppData\Local\Temp\uncrypted.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2924
- - C:\Windows\SysWOW64\MSDCSC\msdcsc.exe
    "C:\Windows\system32\MSDCSC\msdcsc.exe"
    3⤵
    - Modifies firewall policy service
    - Modifies security service
    - Windows security bypass
    - Disables RegEdit via registry modification
    - Executes dropped EXE
    - Windows security modification
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2984
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
      4⤵
      PID:2712
  - - C:\Windows\explorer.exe
      "C:\Windows\explorer.exe"
      4⤵
      PID:2728

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

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

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:\Users\Admin\AppData\Local\Temp\crypt

Filesize
332KB

MD5
9b826fe60458bdfe801f3807d2f4219f

SHA1
b490ede17dd208a9f41fe767d61f7656060f5508

SHA256
e59fa9838cdde40d5845d0ac89e5bdb51ad3b3c74d9c27d5fbc8fa14d57384ff

SHA512
07d80533c7b588a2861aa7f77d87d78b488c9bb73837b0c36e1f25caad3bac0a51c1e29bd7ebbf5ba5b11989fb410a4c0a7c15845f358f116ff68083a932f32a

Download Submit
\Users\Admin\AppData\Local\Temp\uncrypted.exe

Filesize
332KB

MD5
f5b507d793a1f07b1735f57118943ec0

SHA1
27cba0b7895c3e8a1f22fa4954b526885e47e205

SHA256
49ed71b6c346046d05b4a636539118456e3a07f2beaa645d418ffe71db590a23

SHA512
e2d1e881a9f4fd4a1092ff75646de3c1c87bdfb2f75a2e0246f058d855dcedf378018b2e1535e523841f594209de73a98bfb7a1ff74d4b696e9a0db0ebc10672

Download Submit
memory/848-17-0x0000000003D20000-0x0000000003E06000-memory.dmp

Filesize
920KB

Download
memory/848-12-0x0000000003D20000-0x0000000003E06000-memory.dmp

Filesize
920KB

Download
memory/848-0-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/2924-41-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download
memory/2924-27-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download
memory/2924-28-0x00000000003D0000-0x00000000003D1000-memory.dmp

Filesize
4KB

Download
memory/2924-35-0x00000000043C0000-0x00000000044A6000-memory.dmp

Filesize
920KB

Download
memory/2984-47-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download
memory/2984-51-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download
memory/2984-46-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download
memory/2984-42-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download
memory/2984-48-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download
memory/2984-49-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download
memory/2984-50-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download
memory/2984-45-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download
memory/2984-52-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download
memory/2984-53-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download
memory/2984-54-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download
memory/2984-55-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download
memory/2984-56-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download
memory/2984-57-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download
memory/2984-58-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download
memory/2984-59-0x0000000000400000-0x00000000004E6000-memory.dmp

Filesize
920KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads