darkcomet | 9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287

General

Target

9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe
Size

725KB
MD5

6809bd68abcecfb8a7f3954d564933fd
SHA1

d8a2d14f5c2dcbeceffe1aec938a125612e62932
SHA256

9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287
SHA512

11d1bce942cf8ed0cebfde70bc9727d712124fa3f7993328cfe30c8261282215ea10413a2031722c521e29577d44d539001bd7ea6f30c7da3b834bbe76be4718
SSDEEP

12288:V9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hwQrMxtHw:fZ1xuVVjfFoynPaVBUR8f+kN10EBFMxS

Score

10^/10

darkcomet guest16 evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

C2

dsobonus.myvnc.com:1604

Mutex

DC_MUTEX-BT41MG9

Attributes

InstallPath
MSDCSC\explorer.exe
gencode
eZmzPEQdRN7P
install
true
offline_keylogger
true
persistence
true
reg_key
explorer

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

T1004

Modify Registry

T1112

Processes:

9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe

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\\explorer.exe"	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe

Modifies firewall policy service 2 TTPs 3 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

Processes:

explorer.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	explorer.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	explorer.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	explorer.exe

Executes dropped EXE 1 IoCs

Processes:

explorer.exe

pid process

680 explorer.exe
Sets file to hidden 1 TTPs 2 IoCs
Modifies file attributes to stop it showing in Explorer etc.
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

1688 attrib.exe
1540 attrib.exe
Deletes itself 1 IoCs

Processes:

notepad.exe

pid process

764 notepad.exe

pid	process
680	explorer.exe

pid	process
1688	attrib.exe
1540	attrib.exe

pid	process
764	notepad.exe

Loads dropped DLL 2 IoCs

Processes:

9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe

pid	process
856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe
856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exeexplorer.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\explorer = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\explorer.exe"	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000\Software\Microsoft\Windows\CurrentVersion\Run\explorer = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\explorer.exe"	explorer.exe

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

System Information Discovery
T1082
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

explorer.exe

pid process

680 explorer.exe

pid	process
680	explorer.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exeexplorer.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe
Token: SeSecurityPrivilege	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe
Token: SeTakeOwnershipPrivilege	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe
Token: SeLoadDriverPrivilege	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe
Token: SeSystemProfilePrivilege	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe
Token: SeSystemtimePrivilege	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe
Token: SeProfSingleProcessPrivilege	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe
Token: SeIncBasePriorityPrivilege	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe
Token: SeCreatePagefilePrivilege	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe
Token: SeBackupPrivilege	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe
Token: SeRestorePrivilege	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe
Token: SeShutdownPrivilege	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe
Token: SeDebugPrivilege	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe
Token: SeSystemEnvironmentPrivilege	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe
Token: SeChangeNotifyPrivilege	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe
Token: SeRemoteShutdownPrivilege	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe
Token: SeUndockPrivilege	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe
Token: SeManageVolumePrivilege	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe
Token: SeImpersonatePrivilege	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe
Token: SeCreateGlobalPrivilege	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe
Token: 33	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe
Token: 34	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe
Token: 35	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe
Token: SeIncreaseQuotaPrivilege	680	explorer.exe
Token: SeSecurityPrivilege	680	explorer.exe
Token: SeTakeOwnershipPrivilege	680	explorer.exe
Token: SeLoadDriverPrivilege	680	explorer.exe
Token: SeSystemProfilePrivilege	680	explorer.exe
Token: SeSystemtimePrivilege	680	explorer.exe
Token: SeProfSingleProcessPrivilege	680	explorer.exe
Token: SeIncBasePriorityPrivilege	680	explorer.exe
Token: SeCreatePagefilePrivilege	680	explorer.exe
Token: SeBackupPrivilege	680	explorer.exe
Token: SeRestorePrivilege	680	explorer.exe
Token: SeShutdownPrivilege	680	explorer.exe
Token: SeDebugPrivilege	680	explorer.exe
Token: SeSystemEnvironmentPrivilege	680	explorer.exe
Token: SeChangeNotifyPrivilege	680	explorer.exe
Token: SeRemoteShutdownPrivilege	680	explorer.exe
Token: SeUndockPrivilege	680	explorer.exe
Token: SeManageVolumePrivilege	680	explorer.exe
Token: SeImpersonatePrivilege	680	explorer.exe
Token: SeCreateGlobalPrivilege	680	explorer.exe
Token: 33	680	explorer.exe
Token: 34	680	explorer.exe
Token: 35	680	explorer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

explorer.exe

pid process

680 explorer.exe

pid	process
680	explorer.exe

Suspicious use of WriteProcessMemory 61 IoCs

Processes:

9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.execmd.execmd.exeexplorer.exe

description	pid	process	target process
PID 856 wrote to memory of 1520	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe	cmd.exe
PID 856 wrote to memory of 1520	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe	cmd.exe
PID 856 wrote to memory of 1520	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe	cmd.exe
PID 856 wrote to memory of 1520	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe	cmd.exe
PID 856 wrote to memory of 472	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe	cmd.exe
PID 856 wrote to memory of 472	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe	cmd.exe
PID 856 wrote to memory of 472	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe	cmd.exe
PID 856 wrote to memory of 472	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe	cmd.exe
PID 856 wrote to memory of 764	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe	notepad.exe
PID 856 wrote to memory of 764	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe	notepad.exe
PID 856 wrote to memory of 764	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe	notepad.exe
PID 856 wrote to memory of 764	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe	notepad.exe
PID 856 wrote to memory of 764	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe	notepad.exe
PID 856 wrote to memory of 764	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe	notepad.exe
PID 856 wrote to memory of 764	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe	notepad.exe
PID 856 wrote to memory of 764	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe	notepad.exe
PID 856 wrote to memory of 764	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe	notepad.exe
PID 856 wrote to memory of 764	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe	notepad.exe
PID 856 wrote to memory of 764	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe	notepad.exe
PID 856 wrote to memory of 764	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe	notepad.exe
PID 856 wrote to memory of 764	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe	notepad.exe
PID 856 wrote to memory of 764	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe	notepad.exe
PID 856 wrote to memory of 764	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe	notepad.exe
PID 856 wrote to memory of 764	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe	notepad.exe
PID 856 wrote to memory of 764	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe	notepad.exe
PID 856 wrote to memory of 764	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe	notepad.exe
PID 1520 wrote to memory of 1540	1520	cmd.exe	attrib.exe
PID 1520 wrote to memory of 1540	1520	cmd.exe	attrib.exe
PID 1520 wrote to memory of 1540	1520	cmd.exe	attrib.exe
PID 1520 wrote to memory of 1540	1520	cmd.exe	attrib.exe
PID 472 wrote to memory of 1688	472	cmd.exe	attrib.exe
PID 472 wrote to memory of 1688	472	cmd.exe	attrib.exe
PID 472 wrote to memory of 1688	472	cmd.exe	attrib.exe
PID 472 wrote to memory of 1688	472	cmd.exe	attrib.exe
PID 856 wrote to memory of 680	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe	explorer.exe
PID 856 wrote to memory of 680	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe	explorer.exe
PID 856 wrote to memory of 680	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe	explorer.exe
PID 856 wrote to memory of 680	856	9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe	explorer.exe
PID 680 wrote to memory of 1704	680	explorer.exe	notepad.exe
PID 680 wrote to memory of 1704	680	explorer.exe	notepad.exe
PID 680 wrote to memory of 1704	680	explorer.exe	notepad.exe
PID 680 wrote to memory of 1704	680	explorer.exe	notepad.exe
PID 680 wrote to memory of 1704	680	explorer.exe	notepad.exe
PID 680 wrote to memory of 1704	680	explorer.exe	notepad.exe
PID 680 wrote to memory of 1704	680	explorer.exe	notepad.exe
PID 680 wrote to memory of 1704	680	explorer.exe	notepad.exe
PID 680 wrote to memory of 1704	680	explorer.exe	notepad.exe
PID 680 wrote to memory of 1704	680	explorer.exe	notepad.exe
PID 680 wrote to memory of 1704	680	explorer.exe	notepad.exe
PID 680 wrote to memory of 1704	680	explorer.exe	notepad.exe
PID 680 wrote to memory of 1704	680	explorer.exe	notepad.exe
PID 680 wrote to memory of 1704	680	explorer.exe	notepad.exe
PID 680 wrote to memory of 1704	680	explorer.exe	notepad.exe
PID 680 wrote to memory of 1704	680	explorer.exe	notepad.exe
PID 680 wrote to memory of 1704	680	explorer.exe	notepad.exe
PID 680 wrote to memory of 1704	680	explorer.exe	notepad.exe
PID 680 wrote to memory of 1704	680	explorer.exe	notepad.exe
PID 680 wrote to memory of 1704	680	explorer.exe	notepad.exe
PID 680 wrote to memory of 1704	680	explorer.exe	notepad.exe
PID 680 wrote to memory of 1704	680	explorer.exe	notepad.exe
PID 680 wrote to memory of 1704	680	explorer.exe	notepad.exe

Views/modifies file attributes 1 TTPs 2 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exeattrib.exe

pid process

1688 attrib.exe
1540 attrib.exe

pid	process
1688	attrib.exe
1540	attrib.exe

C:\Users\Admin\AppData\Local\Temp\9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe
"C:\Users\Admin\AppData\Local\Temp\9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:856
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe" +s +h
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1520
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287.exe" +s +h
    3⤵
    - Sets file to hidden
    - Views/modifies file attributes
    PID:1540
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:472
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - Sets file to hidden
    - Views/modifies file attributes
    PID:1688
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Deletes itself
  PID:764
- C:\Users\Admin\AppData\Local\Temp\MSDCSC\explorer.exe
  "C:\Users\Admin\AppData\Local\Temp\MSDCSC\explorer.exe"
  2⤵
  - Modifies firewall policy service
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:680
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    PID:1704

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

2

T1158

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\MSDCSC\explorer.exe

Filesize
725KB

MD5
6809bd68abcecfb8a7f3954d564933fd

SHA1
d8a2d14f5c2dcbeceffe1aec938a125612e62932

SHA256
9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287

SHA512
11d1bce942cf8ed0cebfde70bc9727d712124fa3f7993328cfe30c8261282215ea10413a2031722c521e29577d44d539001bd7ea6f30c7da3b834bbe76be4718

Download Submit
C:\Users\Admin\AppData\Local\Temp\MSDCSC\explorer.exe

Filesize
725KB

MD5
6809bd68abcecfb8a7f3954d564933fd

SHA1
d8a2d14f5c2dcbeceffe1aec938a125612e62932

SHA256
9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287

SHA512
11d1bce942cf8ed0cebfde70bc9727d712124fa3f7993328cfe30c8261282215ea10413a2031722c521e29577d44d539001bd7ea6f30c7da3b834bbe76be4718

Download Submit
\Users\Admin\AppData\Local\Temp\MSDCSC\explorer.exe

Filesize
725KB

MD5
6809bd68abcecfb8a7f3954d564933fd

SHA1
d8a2d14f5c2dcbeceffe1aec938a125612e62932

SHA256
9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287

SHA512
11d1bce942cf8ed0cebfde70bc9727d712124fa3f7993328cfe30c8261282215ea10413a2031722c521e29577d44d539001bd7ea6f30c7da3b834bbe76be4718

Download Submit
\Users\Admin\AppData\Local\Temp\MSDCSC\explorer.exe

Filesize
725KB

MD5
6809bd68abcecfb8a7f3954d564933fd

SHA1
d8a2d14f5c2dcbeceffe1aec938a125612e62932

SHA256
9140e447983f9b32db8d93cb72e12dfb885a7c32f1d25fc405b39551934b4287

SHA512
11d1bce942cf8ed0cebfde70bc9727d712124fa3f7993328cfe30c8261282215ea10413a2031722c521e29577d44d539001bd7ea6f30c7da3b834bbe76be4718

Download Submit
memory/472-56-0x0000000000000000-mapping.dmp

Download
memory/680-63-0x0000000000000000-mapping.dmp

Download
memory/764-57-0x0000000000000000-mapping.dmp

Download
memory/856-54-0x0000000075DF1000-0x0000000075DF3000-memory.dmp

Filesize
8KB

Download
memory/1520-55-0x0000000000000000-mapping.dmp

Download
memory/1540-59-0x0000000000000000-mapping.dmp

Download
memory/1688-60-0x0000000000000000-mapping.dmp

Download
memory/1704-67-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads