darkcomet | d743534ac0e5438651bc24d3d5f6b26795f546d0be1f6909a4ead5e697f11b9a

Analysis

max time kernel
147s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24-10-2024 15:04

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General

Target

7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe
Size

1.0MB
MD5

7434d1cee451fd00d640cc3946c205c3
SHA1

82710de38467e0118aeff2700300a2471f632b9e
SHA256

d743534ac0e5438651bc24d3d5f6b26795f546d0be1f6909a4ead5e697f11b9a
SHA512

76c1551bae19a5135380267e29eff600902b27189aa6a8a17745f187801a72cb6600b13fe9771123baf42b3ebf79fefee4e9a5a65e3e4028a5f2d8cc61732e72
SSDEEP

24576:MZ1xuVVjfFoynPaVBUR8f+kN10EBwFPwIFPlGykr:8QDgok30hFPLFP/kr

Score

10^/10

darkcomet guest16 discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

lingfluke123.dyndns-pics.com:200

lingfluke123.dyndns-pics:1604

lingfluke123.dyndns-pics:81

182.52.159.26 :200

127.0.0.1:200

Mutex

DC_MUTEX-WAMU0AD

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
seu3Z6jF5qdA
install
true
offline_keylogger
true
password
123456
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

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"	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
2520	notepad.exe

Executes dropped EXE 1 IoCs

pid	Process
4064	msdcsc.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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	msdcsc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	iexplore.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4064 set thread context of 5052	4064	msdcsc.exe	90

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	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iexplore.exe

Modifies registry class 3 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000_Classes\Local Settings	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe
Key created	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000_Classes\Local Settings	OpenWith.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe
Token: SeSecurityPrivilege	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe
Token: SeBackupPrivilege	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe
Token: SeRestorePrivilege	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe
Token: SeShutdownPrivilege	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe
Token: SeDebugPrivilege	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe
Token: SeUndockPrivilege	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe
Token: 33	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe
Token: 34	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe
Token: 35	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe
Token: 36	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	4064	msdcsc.exe
Token: SeSecurityPrivilege	4064	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4064	msdcsc.exe
Token: SeLoadDriverPrivilege	4064	msdcsc.exe
Token: SeSystemProfilePrivilege	4064	msdcsc.exe
Token: SeSystemtimePrivilege	4064	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4064	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4064	msdcsc.exe
Token: SeCreatePagefilePrivilege	4064	msdcsc.exe
Token: SeBackupPrivilege	4064	msdcsc.exe
Token: SeRestorePrivilege	4064	msdcsc.exe
Token: SeShutdownPrivilege	4064	msdcsc.exe
Token: SeDebugPrivilege	4064	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4064	msdcsc.exe
Token: SeChangeNotifyPrivilege	4064	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4064	msdcsc.exe
Token: SeUndockPrivilege	4064	msdcsc.exe
Token: SeManageVolumePrivilege	4064	msdcsc.exe
Token: SeImpersonatePrivilege	4064	msdcsc.exe
Token: SeCreateGlobalPrivilege	4064	msdcsc.exe
Token: 33	4064	msdcsc.exe
Token: 34	4064	msdcsc.exe
Token: 35	4064	msdcsc.exe
Token: 36	4064	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	5052	iexplore.exe
Token: SeSecurityPrivilege	5052	iexplore.exe
Token: SeTakeOwnershipPrivilege	5052	iexplore.exe
Token: SeLoadDriverPrivilege	5052	iexplore.exe
Token: SeSystemProfilePrivilege	5052	iexplore.exe
Token: SeSystemtimePrivilege	5052	iexplore.exe
Token: SeProfSingleProcessPrivilege	5052	iexplore.exe
Token: SeIncBasePriorityPrivilege	5052	iexplore.exe
Token: SeCreatePagefilePrivilege	5052	iexplore.exe
Token: SeBackupPrivilege	5052	iexplore.exe
Token: SeRestorePrivilege	5052	iexplore.exe
Token: SeShutdownPrivilege	5052	iexplore.exe
Token: SeDebugPrivilege	5052	iexplore.exe
Token: SeSystemEnvironmentPrivilege	5052	iexplore.exe
Token: SeChangeNotifyPrivilege	5052	iexplore.exe
Token: SeRemoteShutdownPrivilege	5052	iexplore.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
244	OpenWith.exe
5052	iexplore.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2972 wrote to memory of 2520	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe	88
PID 2972 wrote to memory of 2520	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe	88
PID 2972 wrote to memory of 2520	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe	88
PID 2972 wrote to memory of 2520	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe	88
PID 2972 wrote to memory of 2520	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe	88
PID 2972 wrote to memory of 2520	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe	88
PID 2972 wrote to memory of 2520	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe	88
PID 2972 wrote to memory of 2520	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe	88
PID 2972 wrote to memory of 2520	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe	88
PID 2972 wrote to memory of 2520	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe	88
PID 2972 wrote to memory of 2520	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe	88
PID 2972 wrote to memory of 2520	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe	88
PID 2972 wrote to memory of 2520	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe	88
PID 2972 wrote to memory of 2520	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe	88
PID 2972 wrote to memory of 2520	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe	88
PID 2972 wrote to memory of 2520	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe	88
PID 2972 wrote to memory of 2520	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe	88
PID 2972 wrote to memory of 4064	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe	89
PID 2972 wrote to memory of 4064	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe	89
PID 2972 wrote to memory of 4064	2972	7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe	89
PID 4064 wrote to memory of 5052	4064	msdcsc.exe	90
PID 4064 wrote to memory of 5052	4064	msdcsc.exe	90
PID 4064 wrote to memory of 5052	4064	msdcsc.exe	90
PID 4064 wrote to memory of 5052	4064	msdcsc.exe	90
PID 4064 wrote to memory of 5052	4064	msdcsc.exe	90

C:\Users\Admin\AppData\Local\Temp\7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\7434d1cee451fd00d640cc3946c205c3_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2972
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2520
- C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
  "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
  2⤵
  - 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:4064
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    - Adds Run key to start application
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:5052

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
PID:244

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

Query Registry

T1012

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\MSDCSC\msdcsc.exe

Filesize
1.0MB

MD5
7434d1cee451fd00d640cc3946c205c3

SHA1
82710de38467e0118aeff2700300a2471f632b9e

SHA256
d743534ac0e5438651bc24d3d5f6b26795f546d0be1f6909a4ead5e697f11b9a

SHA512
76c1551bae19a5135380267e29eff600902b27189aa6a8a17745f187801a72cb6600b13fe9771123baf42b3ebf79fefee4e9a5a65e3e4028a5f2d8cc61732e72

Download Submit
memory/2520-6-0x0000000000600000-0x0000000000601000-memory.dmp

Filesize
4KB

Download
memory/2972-0-0x0000000002180000-0x0000000002181000-memory.dmp

Filesize
4KB

Download
memory/2972-67-0x0000000000400000-0x0000000000510000-memory.dmp

Filesize
1.1MB

Download
memory/4064-66-0x0000000000400000-0x0000000000510000-memory.dmp

Filesize
1.1MB

Download
memory/5052-65-0x0000000000400000-0x0000000000510000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads