darkcomet | cbbcee9aaf3ea06493f8f6ddaf965b872d9fce8fb0b5853f2454ff62f10c5122

Analysis

max time kernel
148s
max time network
103s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
04/07/2024, 00:40

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General

Target

240bd2cbc83c7295112bc8f3978604f9_JaffaCakes118.exe
Size

758KB
MD5

240bd2cbc83c7295112bc8f3978604f9
SHA1

8315d222710dd4f18da6b453cbd944b85083e197
SHA256

cbbcee9aaf3ea06493f8f6ddaf965b872d9fce8fb0b5853f2454ff62f10c5122
SHA512

8aa0b34c6b6c9d3d74171285abc0ddaba056c3dcf11efafb779afa4780e42d046d117164d871b7bc7f29991fd5a9cf70032f8e4fc012975ffa0816a51c57aedd
SSDEEP

12288:VXhpvNWw276S/DuoeFcfbmiJ99VPhYR5MTSHvLenELrWv1lZw4JuMkMh/fy452Ui:pnAw2WWeFcfbP9VPSPMTSPL/rWvzq4JS

Score

10^/10

darkcomet guest17 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest17

127.0.0.1:1604

windowss.zapto.org:1604

Mutex

DC_MUTEX-UZZ4M3Y

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
4t3ERaSD456g
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\\Documents\\MSDCSC\\msdcsc.exe"	240bd2cbc83c7295112bc8f3978604f9_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-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation	240bd2cbc83c7295112bc8f3978604f9_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
4064	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-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	240bd2cbc83c7295112bc8f3978604f9_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	msdcsc.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1568	240bd2cbc83c7295112bc8f3978604f9_JaffaCakes118.exe
Token: SeSecurityPrivilege	1568	240bd2cbc83c7295112bc8f3978604f9_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	1568	240bd2cbc83c7295112bc8f3978604f9_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	1568	240bd2cbc83c7295112bc8f3978604f9_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	1568	240bd2cbc83c7295112bc8f3978604f9_JaffaCakes118.exe
Token: SeSystemtimePrivilege	1568	240bd2cbc83c7295112bc8f3978604f9_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	1568	240bd2cbc83c7295112bc8f3978604f9_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1568	240bd2cbc83c7295112bc8f3978604f9_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	1568	240bd2cbc83c7295112bc8f3978604f9_JaffaCakes118.exe
Token: SeBackupPrivilege	1568	240bd2cbc83c7295112bc8f3978604f9_JaffaCakes118.exe
Token: SeRestorePrivilege	1568	240bd2cbc83c7295112bc8f3978604f9_JaffaCakes118.exe
Token: SeShutdownPrivilege	1568	240bd2cbc83c7295112bc8f3978604f9_JaffaCakes118.exe
Token: SeDebugPrivilege	1568	240bd2cbc83c7295112bc8f3978604f9_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	1568	240bd2cbc83c7295112bc8f3978604f9_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	1568	240bd2cbc83c7295112bc8f3978604f9_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	1568	240bd2cbc83c7295112bc8f3978604f9_JaffaCakes118.exe
Token: SeUndockPrivilege	1568	240bd2cbc83c7295112bc8f3978604f9_JaffaCakes118.exe
Token: SeManageVolumePrivilege	1568	240bd2cbc83c7295112bc8f3978604f9_JaffaCakes118.exe
Token: SeImpersonatePrivilege	1568	240bd2cbc83c7295112bc8f3978604f9_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	1568	240bd2cbc83c7295112bc8f3978604f9_JaffaCakes118.exe
Token: 33	1568	240bd2cbc83c7295112bc8f3978604f9_JaffaCakes118.exe
Token: 34	1568	240bd2cbc83c7295112bc8f3978604f9_JaffaCakes118.exe
Token: 35	1568	240bd2cbc83c7295112bc8f3978604f9_JaffaCakes118.exe
Token: 36	1568	240bd2cbc83c7295112bc8f3978604f9_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

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4064	msdcsc.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1568 wrote to memory of 4064	1568	240bd2cbc83c7295112bc8f3978604f9_JaffaCakes118.exe	81
PID 1568 wrote to memory of 4064	1568	240bd2cbc83c7295112bc8f3978604f9_JaffaCakes118.exe	81
PID 1568 wrote to memory of 4064	1568	240bd2cbc83c7295112bc8f3978604f9_JaffaCakes118.exe	81

C:\Users\Admin\AppData\Local\Temp\240bd2cbc83c7295112bc8f3978604f9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\240bd2cbc83c7295112bc8f3978604f9_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1568
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4064

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
758KB

MD5
240bd2cbc83c7295112bc8f3978604f9

SHA1
8315d222710dd4f18da6b453cbd944b85083e197

SHA256
cbbcee9aaf3ea06493f8f6ddaf965b872d9fce8fb0b5853f2454ff62f10c5122

SHA512
8aa0b34c6b6c9d3d74171285abc0ddaba056c3dcf11efafb779afa4780e42d046d117164d871b7bc7f29991fd5a9cf70032f8e4fc012975ffa0816a51c57aedd

Download Submit
memory/1568-0-0x0000000002140000-0x0000000002141000-memory.dmp

Filesize
4KB

Download
memory/1568-14-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download
memory/4064-15-0x00000000006E0000-0x00000000006E1000-memory.dmp

Filesize
4KB

Download
memory/4064-16-0x0000000000400000-0x00000000004CD000-memory.dmp

Filesize
820KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads