darkcomet | 4218376daccfef8f6ab886677d35f611742d87514f397ba364aecc31def43162

General

Target

ESLgdmd.exe
Size

658KB
MD5

9a1296f15ba38db6500996f2ab63326b
SHA1

23fdace0f52b005b4a8c48f1e3d2328d1dc17daa
SHA256

4218376daccfef8f6ab886677d35f611742d87514f397ba364aecc31def43162
SHA512

4b95b505ad0c40a524106ecb74a21586076b3b83cce9039cb16890d91e62a7952a4bfcd55240ebad43af2f0a5dece71644e247983e89475bdddddda5ec5c1db1
SSDEEP

12288:+9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hxM:KZ1xuVVjfFoynPaVBUR8f+kN10EB7M

Score

10^/10

darkcomet guest16 evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

hacker201.no-ip.biz:1604

Mutex

DC_MUTEX-5VHD9SM

Attributes

InstallPath
Windupdt/winupdate.exe
gencode
0HWc2rAvaCd2
install
true
offline_keylogger
true
persistence
true
reg_key
winupdater

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:

ESLgdmd.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\0HWc2rAvaCd2\\Windupdt/winupdate.exe"	ESLgdmd.exe

Modifies security service 2 TTPs 1 IoCs
evasion

Modify Registry
T1112

Windows Service
T1543.003

Processes:

ESLgdmd.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4" ESLgdmd.exe
Windows security bypass 2 TTPs 1 IoCs
evasion trojan

Disable or Modify Tools
T1562.001

Modify Registry
T1112

Processes:

ESLgdmd.exe

description ioc process

Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" ESLgdmd.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4"	ESLgdmd.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	ESLgdmd.exe

Disables RegEdit via registry modification 1 IoCs

evasion

Processes:

ESLgdmd.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	ESLgdmd.exe

Windows security modification 2 TTPs 1 IoCs
evasion trojan

Disable or Modify Tools
T1562.001

Modify Registry
T1112

Processes:

ESLgdmd.exe

description ioc process

Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" ESLgdmd.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	ESLgdmd.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

ESLgdmd.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupdater = "C:\\0HWc2rAvaCd2\\Windupdt/winupdate.exe"	ESLgdmd.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes:

ESLgdmd.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	3248	ESLgdmd.exe
Token: SeSecurityPrivilege	3248	ESLgdmd.exe
Token: SeTakeOwnershipPrivilege	3248	ESLgdmd.exe
Token: SeLoadDriverPrivilege	3248	ESLgdmd.exe
Token: SeSystemProfilePrivilege	3248	ESLgdmd.exe
Token: SeSystemtimePrivilege	3248	ESLgdmd.exe
Token: SeProfSingleProcessPrivilege	3248	ESLgdmd.exe
Token: SeIncBasePriorityPrivilege	3248	ESLgdmd.exe
Token: SeCreatePagefilePrivilege	3248	ESLgdmd.exe
Token: SeBackupPrivilege	3248	ESLgdmd.exe
Token: SeRestorePrivilege	3248	ESLgdmd.exe
Token: SeShutdownPrivilege	3248	ESLgdmd.exe
Token: SeDebugPrivilege	3248	ESLgdmd.exe
Token: SeSystemEnvironmentPrivilege	3248	ESLgdmd.exe
Token: SeChangeNotifyPrivilege	3248	ESLgdmd.exe
Token: SeRemoteShutdownPrivilege	3248	ESLgdmd.exe
Token: SeUndockPrivilege	3248	ESLgdmd.exe
Token: SeManageVolumePrivilege	3248	ESLgdmd.exe
Token: SeImpersonatePrivilege	3248	ESLgdmd.exe
Token: SeCreateGlobalPrivilege	3248	ESLgdmd.exe
Token: 33	3248	ESLgdmd.exe
Token: 34	3248	ESLgdmd.exe
Token: 35	3248	ESLgdmd.exe
Token: 36	3248	ESLgdmd.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

ESLgdmd.exe

pid process

3248 ESLgdmd.exe

pid	process
3248	ESLgdmd.exe

Suspicious use of WriteProcessMemory 22 IoCs

Processes:

ESLgdmd.exe

description	pid	process	target process
PID 3248 wrote to memory of 2400	3248	ESLgdmd.exe	notepad.exe
PID 3248 wrote to memory of 2400	3248	ESLgdmd.exe	notepad.exe
PID 3248 wrote to memory of 2400	3248	ESLgdmd.exe	notepad.exe
PID 3248 wrote to memory of 2400	3248	ESLgdmd.exe	notepad.exe
PID 3248 wrote to memory of 2400	3248	ESLgdmd.exe	notepad.exe
PID 3248 wrote to memory of 2400	3248	ESLgdmd.exe	notepad.exe
PID 3248 wrote to memory of 2400	3248	ESLgdmd.exe	notepad.exe
PID 3248 wrote to memory of 2400	3248	ESLgdmd.exe	notepad.exe
PID 3248 wrote to memory of 2400	3248	ESLgdmd.exe	notepad.exe
PID 3248 wrote to memory of 2400	3248	ESLgdmd.exe	notepad.exe
PID 3248 wrote to memory of 2400	3248	ESLgdmd.exe	notepad.exe
PID 3248 wrote to memory of 2400	3248	ESLgdmd.exe	notepad.exe
PID 3248 wrote to memory of 2400	3248	ESLgdmd.exe	notepad.exe
PID 3248 wrote to memory of 2400	3248	ESLgdmd.exe	notepad.exe
PID 3248 wrote to memory of 2400	3248	ESLgdmd.exe	notepad.exe
PID 3248 wrote to memory of 2400	3248	ESLgdmd.exe	notepad.exe
PID 3248 wrote to memory of 2400	3248	ESLgdmd.exe	notepad.exe
PID 3248 wrote to memory of 2400	3248	ESLgdmd.exe	notepad.exe
PID 3248 wrote to memory of 2400	3248	ESLgdmd.exe	notepad.exe
PID 3248 wrote to memory of 2400	3248	ESLgdmd.exe	notepad.exe
PID 3248 wrote to memory of 2400	3248	ESLgdmd.exe	notepad.exe
PID 3248 wrote to memory of 2400	3248	ESLgdmd.exe	notepad.exe

C:\Users\Admin\AppData\Local\Temp\ESLgdmd.exe
"C:\Users\Admin\AppData\Local\Temp\ESLgdmd.exe"
1⤵
- Modifies WinLogon for persistence
- Modifies security service
- Windows security bypass
- Disables RegEdit via registry modification
- Windows security modification
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3248

C:\Windows\SysWOW64\notepad.exe
notepad
2⤵
PID:2400

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Modify Registry

5

T1112

Impair Defenses

2

T1562

Disable or Modify Tools

2

T1562.001

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/2400-1-0x0000000000EF0000-0x0000000000EF1000-memory.dmp

Filesize
4KB

Download
memory/3248-8-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3248-7-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3248-3-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3248-4-0x0000000002500000-0x0000000002501000-memory.dmp

Filesize
4KB

Download
memory/3248-9-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3248-6-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3248-2-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3248-0-0x0000000002500000-0x0000000002501000-memory.dmp

Filesize
4KB

Download
memory/3248-5-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3248-10-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3248-11-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3248-12-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3248-13-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3248-14-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3248-15-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3248-16-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

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Downloads