darkcomet | 5b01cd848be1f1a8c9a3ed3aa59508be568abeaef19b287c200fe18723783ed1

Analysis

max time kernel
152s
max time network
162s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26/12/2023, 03:36

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

50e93ac55ff74b46be448f4adf103c43.exe
Size

692KB
MD5

50e93ac55ff74b46be448f4adf103c43
SHA1

b517f5f669048508ac90bbc662b6af9066fd3ff9
SHA256

5b01cd848be1f1a8c9a3ed3aa59508be568abeaef19b287c200fe18723783ed1
SHA512

38eed2dfe534551daae8322b1b9cff1dd141564d6dd1761b934871effd6a498af8e3781bade3105e135aaedc7696c0a3c8d9bc773862d9b9536b6a30cda746a3
SSDEEP

12288:8XhpvNWw276S/DuoeFcfbmiJ99VPhYR5MTSHvLenELrWv1lZw4JuMkMh/fy452U3:qnAw2WWeFcfbP9VPSPMTSPL/rWvzq4Jn

Score

10^/10

darkcomet guest16 evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

gehackt.no-ip.org:1604

gehackt.no-ip.org:3389

Mutex

DC_MUTEX-F3NGXVX

Attributes

InstallPath
MSDCSC\svchost.exe
gencode
97X125MJWil4
install
true
offline_keylogger
true
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\\svchost.exe"	50e93ac55ff74b46be448f4adf103c43.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
5028	attrib.exe
4268	attrib.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-1-5-21-983843758-932321429-1636175382-1000\Control Panel\International\Geo\Nation	50e93ac55ff74b46be448f4adf103c43.exe

Deletes itself 1 IoCs

pid	Process
4824	notepad.exe

Executes dropped EXE 1 IoCs

pid	Process
4960	svchost.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-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\svchost.exe"	50e93ac55ff74b46be448f4adf103c43.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\svchost.exe"	svchost.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	50e93ac55ff74b46be448f4adf103c43.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4960	svchost.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2988	50e93ac55ff74b46be448f4adf103c43.exe
Token: SeSecurityPrivilege	2988	50e93ac55ff74b46be448f4adf103c43.exe
Token: SeTakeOwnershipPrivilege	2988	50e93ac55ff74b46be448f4adf103c43.exe
Token: SeLoadDriverPrivilege	2988	50e93ac55ff74b46be448f4adf103c43.exe
Token: SeSystemProfilePrivilege	2988	50e93ac55ff74b46be448f4adf103c43.exe
Token: SeSystemtimePrivilege	2988	50e93ac55ff74b46be448f4adf103c43.exe
Token: SeProfSingleProcessPrivilege	2988	50e93ac55ff74b46be448f4adf103c43.exe
Token: SeIncBasePriorityPrivilege	2988	50e93ac55ff74b46be448f4adf103c43.exe
Token: SeCreatePagefilePrivilege	2988	50e93ac55ff74b46be448f4adf103c43.exe
Token: SeBackupPrivilege	2988	50e93ac55ff74b46be448f4adf103c43.exe
Token: SeRestorePrivilege	2988	50e93ac55ff74b46be448f4adf103c43.exe
Token: SeShutdownPrivilege	2988	50e93ac55ff74b46be448f4adf103c43.exe
Token: SeDebugPrivilege	2988	50e93ac55ff74b46be448f4adf103c43.exe
Token: SeSystemEnvironmentPrivilege	2988	50e93ac55ff74b46be448f4adf103c43.exe
Token: SeChangeNotifyPrivilege	2988	50e93ac55ff74b46be448f4adf103c43.exe
Token: SeRemoteShutdownPrivilege	2988	50e93ac55ff74b46be448f4adf103c43.exe
Token: SeUndockPrivilege	2988	50e93ac55ff74b46be448f4adf103c43.exe
Token: SeManageVolumePrivilege	2988	50e93ac55ff74b46be448f4adf103c43.exe
Token: SeImpersonatePrivilege	2988	50e93ac55ff74b46be448f4adf103c43.exe
Token: SeCreateGlobalPrivilege	2988	50e93ac55ff74b46be448f4adf103c43.exe
Token: 33	2988	50e93ac55ff74b46be448f4adf103c43.exe
Token: 34	2988	50e93ac55ff74b46be448f4adf103c43.exe
Token: 35	2988	50e93ac55ff74b46be448f4adf103c43.exe
Token: 36	2988	50e93ac55ff74b46be448f4adf103c43.exe
Token: SeIncreaseQuotaPrivilege	4960	svchost.exe
Token: SeSecurityPrivilege	4960	svchost.exe
Token: SeTakeOwnershipPrivilege	4960	svchost.exe
Token: SeLoadDriverPrivilege	4960	svchost.exe
Token: SeSystemProfilePrivilege	4960	svchost.exe
Token: SeSystemtimePrivilege	4960	svchost.exe
Token: SeProfSingleProcessPrivilege	4960	svchost.exe
Token: SeIncBasePriorityPrivilege	4960	svchost.exe
Token: SeCreatePagefilePrivilege	4960	svchost.exe
Token: SeBackupPrivilege	4960	svchost.exe
Token: SeRestorePrivilege	4960	svchost.exe
Token: SeShutdownPrivilege	4960	svchost.exe
Token: SeDebugPrivilege	4960	svchost.exe
Token: SeSystemEnvironmentPrivilege	4960	svchost.exe
Token: SeChangeNotifyPrivilege	4960	svchost.exe
Token: SeRemoteShutdownPrivilege	4960	svchost.exe
Token: SeUndockPrivilege	4960	svchost.exe
Token: SeManageVolumePrivilege	4960	svchost.exe
Token: SeImpersonatePrivilege	4960	svchost.exe
Token: SeCreateGlobalPrivilege	4960	svchost.exe
Token: 33	4960	svchost.exe
Token: 34	4960	svchost.exe
Token: 35	4960	svchost.exe
Token: 36	4960	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4960	svchost.exe

Suspicious use of WriteProcessMemory 54 IoCs

description	pid	Process	procid_target
PID 2988 wrote to memory of 2220	2988	50e93ac55ff74b46be448f4adf103c43.exe	92
PID 2988 wrote to memory of 2220	2988	50e93ac55ff74b46be448f4adf103c43.exe	92
PID 2988 wrote to memory of 2220	2988	50e93ac55ff74b46be448f4adf103c43.exe	92
PID 2988 wrote to memory of 116	2988	50e93ac55ff74b46be448f4adf103c43.exe	94
PID 2988 wrote to memory of 116	2988	50e93ac55ff74b46be448f4adf103c43.exe	94
PID 2988 wrote to memory of 116	2988	50e93ac55ff74b46be448f4adf103c43.exe	94
PID 2988 wrote to memory of 4824	2988	50e93ac55ff74b46be448f4adf103c43.exe	96
PID 2988 wrote to memory of 4824	2988	50e93ac55ff74b46be448f4adf103c43.exe	96
PID 2988 wrote to memory of 4824	2988	50e93ac55ff74b46be448f4adf103c43.exe	96
PID 2988 wrote to memory of 4824	2988	50e93ac55ff74b46be448f4adf103c43.exe	96
PID 2988 wrote to memory of 4824	2988	50e93ac55ff74b46be448f4adf103c43.exe	96
PID 2988 wrote to memory of 4824	2988	50e93ac55ff74b46be448f4adf103c43.exe	96
PID 2988 wrote to memory of 4824	2988	50e93ac55ff74b46be448f4adf103c43.exe	96
PID 2988 wrote to memory of 4824	2988	50e93ac55ff74b46be448f4adf103c43.exe	96
PID 2988 wrote to memory of 4824	2988	50e93ac55ff74b46be448f4adf103c43.exe	96
PID 2988 wrote to memory of 4824	2988	50e93ac55ff74b46be448f4adf103c43.exe	96
PID 2988 wrote to memory of 4824	2988	50e93ac55ff74b46be448f4adf103c43.exe	96
PID 2988 wrote to memory of 4824	2988	50e93ac55ff74b46be448f4adf103c43.exe	96
PID 2988 wrote to memory of 4824	2988	50e93ac55ff74b46be448f4adf103c43.exe	96
PID 2988 wrote to memory of 4824	2988	50e93ac55ff74b46be448f4adf103c43.exe	96
PID 2988 wrote to memory of 4824	2988	50e93ac55ff74b46be448f4adf103c43.exe	96
PID 2988 wrote to memory of 4824	2988	50e93ac55ff74b46be448f4adf103c43.exe	96
PID 2988 wrote to memory of 4824	2988	50e93ac55ff74b46be448f4adf103c43.exe	96
PID 2220 wrote to memory of 5028	2220	cmd.exe	97
PID 2220 wrote to memory of 5028	2220	cmd.exe	97
PID 2220 wrote to memory of 5028	2220	cmd.exe	97
PID 116 wrote to memory of 4268	116	cmd.exe	98
PID 116 wrote to memory of 4268	116	cmd.exe	98
PID 116 wrote to memory of 4268	116	cmd.exe	98
PID 2988 wrote to memory of 4960	2988	50e93ac55ff74b46be448f4adf103c43.exe	100
PID 2988 wrote to memory of 4960	2988	50e93ac55ff74b46be448f4adf103c43.exe	100
PID 2988 wrote to memory of 4960	2988	50e93ac55ff74b46be448f4adf103c43.exe	100
PID 4960 wrote to memory of 1900	4960	svchost.exe	101
PID 4960 wrote to memory of 1900	4960	svchost.exe	101
PID 4960 wrote to memory of 1900	4960	svchost.exe	101
PID 4960 wrote to memory of 1900	4960	svchost.exe	101
PID 4960 wrote to memory of 1900	4960	svchost.exe	101
PID 4960 wrote to memory of 1900	4960	svchost.exe	101
PID 4960 wrote to memory of 1900	4960	svchost.exe	101
PID 4960 wrote to memory of 1900	4960	svchost.exe	101
PID 4960 wrote to memory of 1900	4960	svchost.exe	101
PID 4960 wrote to memory of 1900	4960	svchost.exe	101
PID 4960 wrote to memory of 1900	4960	svchost.exe	101
PID 4960 wrote to memory of 1900	4960	svchost.exe	101
PID 4960 wrote to memory of 1900	4960	svchost.exe	101
PID 4960 wrote to memory of 1900	4960	svchost.exe	101
PID 4960 wrote to memory of 1900	4960	svchost.exe	101
PID 4960 wrote to memory of 1900	4960	svchost.exe	101
PID 4960 wrote to memory of 1900	4960	svchost.exe	101
PID 4960 wrote to memory of 1900	4960	svchost.exe	101
PID 4960 wrote to memory of 1900	4960	svchost.exe	101
PID 4960 wrote to memory of 1900	4960	svchost.exe	101
PID 4960 wrote to memory of 1900	4960	svchost.exe	101
PID 4960 wrote to memory of 1900	4960	svchost.exe	101

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
5028	attrib.exe
4268	attrib.exe

C:\Users\Admin\AppData\Local\Temp\50e93ac55ff74b46be448f4adf103c43.exe
"C:\Users\Admin\AppData\Local\Temp\50e93ac55ff74b46be448f4adf103c43.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2988
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\50e93ac55ff74b46be448f4adf103c43.exe" +s +h
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2220
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\50e93ac55ff74b46be448f4adf103c43.exe" +s +h
    3⤵
    - Sets file to hidden
    - Views/modifies file attributes
    PID:5028
- 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:116
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - Sets file to hidden
    - Views/modifies file attributes
    PID:4268
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Deletes itself
  PID:4824
- C:\Users\Admin\AppData\Local\Temp\MSDCSC\svchost.exe
  "C:\Users\Admin\AppData\Local\Temp\MSDCSC\svchost.exe"
  2⤵
  - 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:4960
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    PID:1900

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

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
551KB

MD5
e119ab6726fadc946ede65efb5c32d1c

SHA1
5e10d9a13fa6899b54147574671b0dfeb637a417

SHA256
3b4826128af8ac3ef29cd5f3787d55ca9b9d73e67b079002d102adb6dbb03fb6

SHA512
4fecc10631d193d274ecd2a4234aa49a947ecacdd092fa943d92917db4e6d8d65c5a3ecb9a454a185bb673cf27fdf256ce3aca83a55cefb54a86dc4809465691

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

Filesize
692KB

MD5
50e93ac55ff74b46be448f4adf103c43

SHA1
b517f5f669048508ac90bbc662b6af9066fd3ff9

SHA256
5b01cd848be1f1a8c9a3ed3aa59508be568abeaef19b287c200fe18723783ed1

SHA512
38eed2dfe534551daae8322b1b9cff1dd141564d6dd1761b934871effd6a498af8e3781bade3105e135aaedc7696c0a3c8d9bc773862d9b9536b6a30cda746a3

Download Submit
memory/1900-64-0x00000000010B0000-0x00000000010B1000-memory.dmp

Filesize
4KB

Download
memory/2988-62-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/2988-0-0x00000000022C0000-0x00000000022C1000-memory.dmp

Filesize
4KB

Download
memory/4824-3-0x00000000006B0000-0x00000000006B1000-memory.dmp

Filesize
4KB

Download
memory/4960-69-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/4960-72-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/4960-67-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/4960-68-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/4960-63-0x00000000025B0000-0x00000000025B1000-memory.dmp

Filesize
4KB

Download
memory/4960-70-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/4960-71-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/4960-66-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/4960-73-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/4960-74-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/4960-75-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/4960-76-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/4960-77-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/4960-78-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/4960-79-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads