darkcomet | 57a1236800a5aed6cb19fdbacddf7690879e7089a3a4e53e69914a881deeee9d

Analysis

max time kernel
149s
max time network
17s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
10-12-2024 00:17

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General

Target

dc27eceaf210841183bb41d174d82703_JaffaCakes118.exe
Size

806KB
MD5

dc27eceaf210841183bb41d174d82703
SHA1

3168822dae81eec0db1717de9eaeb8b815342b39
SHA256

57a1236800a5aed6cb19fdbacddf7690879e7089a3a4e53e69914a881deeee9d
SHA512

42bfb70ce62522e95e9c3c1a6cd6e1488d7044a94a017ae4bd1ed6ba7e3858f987a4d48bb40f412501918639b83c14e9544a8acceb7fb7eda377e8a4d8b582a2
SSDEEP

12288:vYUAPSGPXu8BFlemZpYZ0RKYrb/FGLzj2Ev7CQGuXMgpTYnsqhAiuwW:mSSuO1MZ0B/F4muXbpE+tr

Score

10^/10

darkcomet discovery evasion 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:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	Crypted.exe

Modifies firewall policy service 3 TTPs 6 IoCs

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	iexplore.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	iexplore.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	iexplore.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

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

pid	Process
2912	attrib.exe
3032	attrib.exe

Executes dropped EXE 2 IoCs

pid	Process
1964	Crypted.exe
2292	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
1964	Crypted.exe
1964	Crypted.exe

Adds Run key to start application 2 TTPs 3 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:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	Crypted.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	iexplore.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2292 set thread context of 872	2292	msdcsc.exe	41

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 9 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Crypted.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.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	iexplore.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
2864	PING.EXE
3064	cmd.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2864	PING.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
872	iexplore.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1964	Crypted.exe
Token: SeSecurityPrivilege	1964	Crypted.exe
Token: SeTakeOwnershipPrivilege	1964	Crypted.exe
Token: SeLoadDriverPrivilege	1964	Crypted.exe
Token: SeSystemProfilePrivilege	1964	Crypted.exe
Token: SeSystemtimePrivilege	1964	Crypted.exe
Token: SeProfSingleProcessPrivilege	1964	Crypted.exe
Token: SeIncBasePriorityPrivilege	1964	Crypted.exe
Token: SeCreatePagefilePrivilege	1964	Crypted.exe
Token: SeBackupPrivilege	1964	Crypted.exe
Token: SeRestorePrivilege	1964	Crypted.exe
Token: SeShutdownPrivilege	1964	Crypted.exe
Token: SeDebugPrivilege	1964	Crypted.exe
Token: SeSystemEnvironmentPrivilege	1964	Crypted.exe
Token: SeChangeNotifyPrivilege	1964	Crypted.exe
Token: SeRemoteShutdownPrivilege	1964	Crypted.exe
Token: SeUndockPrivilege	1964	Crypted.exe
Token: SeManageVolumePrivilege	1964	Crypted.exe
Token: SeImpersonatePrivilege	1964	Crypted.exe
Token: SeCreateGlobalPrivilege	1964	Crypted.exe
Token: 33	1964	Crypted.exe
Token: 34	1964	Crypted.exe
Token: 35	1964	Crypted.exe
Token: SeIncreaseQuotaPrivilege	2292	msdcsc.exe
Token: SeSecurityPrivilege	2292	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2292	msdcsc.exe
Token: SeLoadDriverPrivilege	2292	msdcsc.exe
Token: SeSystemProfilePrivilege	2292	msdcsc.exe
Token: SeSystemtimePrivilege	2292	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2292	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2292	msdcsc.exe
Token: SeCreatePagefilePrivilege	2292	msdcsc.exe
Token: SeBackupPrivilege	2292	msdcsc.exe
Token: SeRestorePrivilege	2292	msdcsc.exe
Token: SeShutdownPrivilege	2292	msdcsc.exe
Token: SeDebugPrivilege	2292	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2292	msdcsc.exe
Token: SeChangeNotifyPrivilege	2292	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2292	msdcsc.exe
Token: SeUndockPrivilege	2292	msdcsc.exe
Token: SeManageVolumePrivilege	2292	msdcsc.exe
Token: SeImpersonatePrivilege	2292	msdcsc.exe
Token: SeCreateGlobalPrivilege	2292	msdcsc.exe
Token: 33	2292	msdcsc.exe
Token: 34	2292	msdcsc.exe
Token: 35	2292	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	872	iexplore.exe
Token: SeSecurityPrivilege	872	iexplore.exe
Token: SeTakeOwnershipPrivilege	872	iexplore.exe
Token: SeLoadDriverPrivilege	872	iexplore.exe
Token: SeSystemProfilePrivilege	872	iexplore.exe
Token: SeSystemtimePrivilege	872	iexplore.exe
Token: SeProfSingleProcessPrivilege	872	iexplore.exe
Token: SeIncBasePriorityPrivilege	872	iexplore.exe
Token: SeCreatePagefilePrivilege	872	iexplore.exe
Token: SeBackupPrivilege	872	iexplore.exe
Token: SeRestorePrivilege	872	iexplore.exe
Token: SeShutdownPrivilege	872	iexplore.exe
Token: SeDebugPrivilege	872	iexplore.exe
Token: SeSystemEnvironmentPrivilege	872	iexplore.exe
Token: SeChangeNotifyPrivilege	872	iexplore.exe
Token: SeRemoteShutdownPrivilege	872	iexplore.exe
Token: SeUndockPrivilege	872	iexplore.exe
Token: SeManageVolumePrivilege	872	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
872	iexplore.exe

Suspicious use of WriteProcessMemory 38 IoCs

description	pid	Process	procid_target
PID 1760 wrote to memory of 1964	1760	dc27eceaf210841183bb41d174d82703_JaffaCakes118.exe	30
PID 1760 wrote to memory of 1964	1760	dc27eceaf210841183bb41d174d82703_JaffaCakes118.exe	30
PID 1760 wrote to memory of 1964	1760	dc27eceaf210841183bb41d174d82703_JaffaCakes118.exe	30
PID 1760 wrote to memory of 1964	1760	dc27eceaf210841183bb41d174d82703_JaffaCakes118.exe	30
PID 1964 wrote to memory of 2952	1964	Crypted.exe	31
PID 1964 wrote to memory of 2952	1964	Crypted.exe	31
PID 1964 wrote to memory of 2952	1964	Crypted.exe	31
PID 1964 wrote to memory of 2952	1964	Crypted.exe	31
PID 1964 wrote to memory of 2876	1964	Crypted.exe	33
PID 1964 wrote to memory of 2876	1964	Crypted.exe	33
PID 1964 wrote to memory of 2876	1964	Crypted.exe	33
PID 1964 wrote to memory of 2876	1964	Crypted.exe	33
PID 1964 wrote to memory of 3064	1964	Crypted.exe	35
PID 1964 wrote to memory of 3064	1964	Crypted.exe	35
PID 1964 wrote to memory of 3064	1964	Crypted.exe	35
PID 1964 wrote to memory of 3064	1964	Crypted.exe	35
PID 2952 wrote to memory of 2912	2952	cmd.exe	36
PID 2952 wrote to memory of 2912	2952	cmd.exe	36
PID 2952 wrote to memory of 2912	2952	cmd.exe	36
PID 2952 wrote to memory of 2912	2952	cmd.exe	36
PID 2876 wrote to memory of 3032	2876	cmd.exe	38
PID 2876 wrote to memory of 3032	2876	cmd.exe	38
PID 2876 wrote to memory of 3032	2876	cmd.exe	38
PID 2876 wrote to memory of 3032	2876	cmd.exe	38
PID 3064 wrote to memory of 2864	3064	cmd.exe	39
PID 3064 wrote to memory of 2864	3064	cmd.exe	39
PID 3064 wrote to memory of 2864	3064	cmd.exe	39
PID 3064 wrote to memory of 2864	3064	cmd.exe	39
PID 1964 wrote to memory of 2292	1964	Crypted.exe	40
PID 1964 wrote to memory of 2292	1964	Crypted.exe	40
PID 1964 wrote to memory of 2292	1964	Crypted.exe	40
PID 1964 wrote to memory of 2292	1964	Crypted.exe	40
PID 2292 wrote to memory of 872	2292	msdcsc.exe	41
PID 2292 wrote to memory of 872	2292	msdcsc.exe	41
PID 2292 wrote to memory of 872	2292	msdcsc.exe	41
PID 2292 wrote to memory of 872	2292	msdcsc.exe	41
PID 2292 wrote to memory of 872	2292	msdcsc.exe	41
PID 2292 wrote to memory of 872	2292	msdcsc.exe	41

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2912	attrib.exe
3032	attrib.exe

C:\Users\Admin\AppData\Local\Temp\dc27eceaf210841183bb41d174d82703_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\dc27eceaf210841183bb41d174d82703_JaffaCakes118.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1760
- C:\Users\Admin\AppData\Local\Temp\Crypted.exe
  "C:\Users\Admin\AppData\Local\Temp\Crypted.exe"
  2⤵
  - Modifies WinLogon for persistence
  - 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 WriteProcessMemory
  PID:1964
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\Crypted.exe" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2952
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp\Crypted.exe" +s +h
      4⤵
      Sets file to hidden
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:2912
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2876
  - - C:\Windows\SysWOW64\attrib.exe
      attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
      4⤵
      Sets file to hidden
      System Location Discovery: System Language Discovery
      Views/modifies file attributes
      PID:3032
- - 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\Crypted.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:3064
  - - 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:2864
- - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
    "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
    3⤵
    - Modifies firewall policy service
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2292
  - - C:\Program Files (x86)\Internet Explorer\iexplore.exe
      "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
      4⤵
      Modifies firewall policy service
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:872

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

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

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

C:\Users\Admin\AppData\Local\Temp\Crypted.exe

Filesize
744KB

MD5
d6856a3c5fad61d5d8a11ea02db604b6

SHA1
1812768080f0a9e0dbf376f7c1b3beece18f5747

SHA256
ff5cc5d6ca35c5657bc6ac0167107e4490fa6abfe3bb830cdb85df0c7cb0c0c8

SHA512
81f110e574660648c77c02305a30a556dd4605a66afe621700cb0b05feb937243bf7c316cb2829fa5012a5374307bc0207859e545822c8d1ca19360ff79632e2

Download Submit
memory/872-28-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/1760-0-0x000007FEF61AE000-0x000007FEF61AF000-memory.dmp

Filesize
4KB

Download
memory/1760-1-0x000007FEF5EF0000-0x000007FEF688D000-memory.dmp

Filesize
9.6MB

Download
memory/1760-2-0x000007FEF5EF0000-0x000007FEF688D000-memory.dmp

Filesize
9.6MB

Download
memory/1760-3-0x000007FEF5EF0000-0x000007FEF688D000-memory.dmp

Filesize
9.6MB

Download
memory/1760-5-0x000007FEF5EF0000-0x000007FEF688D000-memory.dmp

Filesize
9.6MB

Download
memory/1760-12-0x000007FEF5EF0000-0x000007FEF688D000-memory.dmp

Filesize
9.6MB

Download
memory/1964-13-0x0000000000240000-0x0000000000241000-memory.dmp

Filesize
4KB

Download
memory/1964-25-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/2292-29-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads