darkcomet | 5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551

Analysis

max time kernel
119s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08/01/2025, 20:20

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General

Target

5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe
Size

283KB
MD5

6c34fdea65a4058dd18567b20209b950
SHA1

a7d7d0e2876dfce3b96b47e74b4699fbd6bb3bec
SHA256

5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551
SHA512

ae3bb1a0640d9641a545bc3d0c44388ce213f5049e1a896cf7e0b6fa1a8da755a9da7dc6dc29d294f4a4fdb9e907959cf0cb2fa104d08eac6c79915c87c7528d
SSDEEP

6144:ycNYS996KFifeVjBpeExgVTFSXFoMc5RhCaL37hjW:ycW7KEZlPzCy37hjW

Score

10^/10

darkcomet tio discovery evasion persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

tio

2.82.41.139:80

Mutex

DC_MUTEX-277EST2

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
EnEvlyl9AxvG
install
true
offline_keylogger
true
persistence
false
reg_key
MicroUpdate

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet
Darkcomet family
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:\\Windows\\MSDCSC\\msdcsc.exe"	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe

Modifies firewall policy service 3 TTPs 6 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

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

Modifies security service 2 TTPs 2 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4"	msdcsc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4"	iexplore.exe

Windows security bypass 2 TTPs 4 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	iexplore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	iexplore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msdcsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	msdcsc.exe

Executes dropped EXE 1 IoCs

pid	Process
1792	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
2396	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe
2396	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msdcsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	msdcsc.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\MSDCSC\\msdcsc.exe"	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1792 set thread context of 2448	1792	msdcsc.exe	31

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2396-0-0x0000000000400000-0x00000000004C7000-memory.dmp	upx
behavioral1/files/0x0008000000016da7-5.dat	upx
behavioral1/memory/1792-14-0x0000000000400000-0x00000000004C7000-memory.dmp	upx
behavioral1/memory/2448-16-0x0000000000400000-0x00000000004C7000-memory.dmp	upx
behavioral1/memory/1792-18-0x0000000000400000-0x00000000004C7000-memory.dmp	upx
behavioral1/memory/2396-58-0x0000000000400000-0x00000000004C7000-memory.dmp	upx

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\MSDCSC\msdcsc.exe	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe
File opened for modification	C:\Windows\MSDCSC\msdcsc.exe	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe
File opened for modification	C:\Windows\MSDCSC\	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe

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	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iexplore.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2448	iexplore.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2396	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe
Token: SeSecurityPrivilege	2396	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe
Token: SeTakeOwnershipPrivilege	2396	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe
Token: SeLoadDriverPrivilege	2396	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe
Token: SeSystemProfilePrivilege	2396	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe
Token: SeSystemtimePrivilege	2396	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe
Token: SeProfSingleProcessPrivilege	2396	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe
Token: SeIncBasePriorityPrivilege	2396	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe
Token: SeCreatePagefilePrivilege	2396	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe
Token: SeBackupPrivilege	2396	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe
Token: SeRestorePrivilege	2396	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe
Token: SeShutdownPrivilege	2396	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe
Token: SeDebugPrivilege	2396	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe
Token: SeSystemEnvironmentPrivilege	2396	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe
Token: SeChangeNotifyPrivilege	2396	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe
Token: SeRemoteShutdownPrivilege	2396	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe
Token: SeUndockPrivilege	2396	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe
Token: SeManageVolumePrivilege	2396	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe
Token: SeImpersonatePrivilege	2396	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe
Token: SeCreateGlobalPrivilege	2396	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe
Token: 33	2396	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe
Token: 34	2396	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe
Token: 35	2396	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe
Token: SeIncreaseQuotaPrivilege	1792	msdcsc.exe
Token: SeSecurityPrivilege	1792	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1792	msdcsc.exe
Token: SeLoadDriverPrivilege	1792	msdcsc.exe
Token: SeSystemProfilePrivilege	1792	msdcsc.exe
Token: SeSystemtimePrivilege	1792	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1792	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1792	msdcsc.exe
Token: SeCreatePagefilePrivilege	1792	msdcsc.exe
Token: SeBackupPrivilege	1792	msdcsc.exe
Token: SeRestorePrivilege	1792	msdcsc.exe
Token: SeShutdownPrivilege	1792	msdcsc.exe
Token: SeDebugPrivilege	1792	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1792	msdcsc.exe
Token: SeChangeNotifyPrivilege	1792	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1792	msdcsc.exe
Token: SeUndockPrivilege	1792	msdcsc.exe
Token: SeManageVolumePrivilege	1792	msdcsc.exe
Token: SeImpersonatePrivilege	1792	msdcsc.exe
Token: SeCreateGlobalPrivilege	1792	msdcsc.exe
Token: 33	1792	msdcsc.exe
Token: 34	1792	msdcsc.exe
Token: 35	1792	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	2448	iexplore.exe
Token: SeSecurityPrivilege	2448	iexplore.exe
Token: SeTakeOwnershipPrivilege	2448	iexplore.exe
Token: SeLoadDriverPrivilege	2448	iexplore.exe
Token: SeSystemProfilePrivilege	2448	iexplore.exe
Token: SeSystemtimePrivilege	2448	iexplore.exe
Token: SeProfSingleProcessPrivilege	2448	iexplore.exe
Token: SeIncBasePriorityPrivilege	2448	iexplore.exe
Token: SeCreatePagefilePrivilege	2448	iexplore.exe
Token: SeBackupPrivilege	2448	iexplore.exe
Token: SeRestorePrivilege	2448	iexplore.exe
Token: SeShutdownPrivilege	2448	iexplore.exe
Token: SeDebugPrivilege	2448	iexplore.exe
Token: SeSystemEnvironmentPrivilege	2448	iexplore.exe
Token: SeChangeNotifyPrivilege	2448	iexplore.exe
Token: SeRemoteShutdownPrivilege	2448	iexplore.exe
Token: SeUndockPrivilege	2448	iexplore.exe
Token: SeManageVolumePrivilege	2448	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2448	iexplore.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 2396 wrote to memory of 1792	2396	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe	30
PID 2396 wrote to memory of 1792	2396	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe	30
PID 2396 wrote to memory of 1792	2396	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe	30
PID 2396 wrote to memory of 1792	2396	5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe	30
PID 1792 wrote to memory of 2448	1792	msdcsc.exe	31
PID 1792 wrote to memory of 2448	1792	msdcsc.exe	31
PID 1792 wrote to memory of 2448	1792	msdcsc.exe	31
PID 1792 wrote to memory of 2448	1792	msdcsc.exe	31
PID 1792 wrote to memory of 2448	1792	msdcsc.exe	31
PID 1792 wrote to memory of 2448	1792	msdcsc.exe	31
PID 2448 wrote to memory of 2740	2448	iexplore.exe	32
PID 2448 wrote to memory of 2740	2448	iexplore.exe	32
PID 2448 wrote to memory of 2740	2448	iexplore.exe	32
PID 2448 wrote to memory of 2740	2448	iexplore.exe	32
PID 2448 wrote to memory of 2740	2448	iexplore.exe	32
PID 2448 wrote to memory of 2740	2448	iexplore.exe	32
PID 2448 wrote to memory of 2740	2448	iexplore.exe	32
PID 2448 wrote to memory of 2740	2448	iexplore.exe	32
PID 2448 wrote to memory of 2740	2448	iexplore.exe	32
PID 2448 wrote to memory of 2740	2448	iexplore.exe	32
PID 2448 wrote to memory of 2740	2448	iexplore.exe	32
PID 2448 wrote to memory of 2740	2448	iexplore.exe	32
PID 2448 wrote to memory of 2740	2448	iexplore.exe	32
PID 2448 wrote to memory of 2740	2448	iexplore.exe	32
PID 2448 wrote to memory of 2740	2448	iexplore.exe	32
PID 2448 wrote to memory of 2740	2448	iexplore.exe	32
PID 2448 wrote to memory of 2740	2448	iexplore.exe	32
PID 2448 wrote to memory of 2740	2448	iexplore.exe	32
PID 2448 wrote to memory of 2740	2448	iexplore.exe	32
PID 2448 wrote to memory of 2740	2448	iexplore.exe	32
PID 2448 wrote to memory of 2740	2448	iexplore.exe	32
PID 2448 wrote to memory of 2740	2448	iexplore.exe	32
PID 2448 wrote to memory of 2740	2448	iexplore.exe	32

System policy modification 1 TTPs 3 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion	msdcsc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern	msdcsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\CurrentVersion\Explorern\NoControlPanel = "1"	msdcsc.exe

C:\Users\Admin\AppData\Local\Temp\5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe
"C:\Users\Admin\AppData\Local\Temp\5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551N.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2396
- C:\Windows\MSDCSC\msdcsc.exe
  "C:\Windows\MSDCSC\msdcsc.exe"
  2⤵
  - Modifies firewall policy service
  - Modifies security service
  - Windows security bypass
  - Executes dropped EXE
  - Windows security modification
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:1792
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies firewall policy service
    - Modifies security service
    - Windows security bypass
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2448
  - - C:\Windows\SysWOW64\notepad.exe
      notepad
      4⤵
      System Location Discovery: System Language Discovery
      PID:2740

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

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

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

\Windows\MSDCSC\msdcsc.exe

Filesize
283KB

MD5
6c34fdea65a4058dd18567b20209b950

SHA1
a7d7d0e2876dfce3b96b47e74b4699fbd6bb3bec

SHA256
5063ad8b412f2676fd2b0adbd3cf3b07de285b768ad414b7a2cd093747e76551

SHA512
ae3bb1a0640d9641a545bc3d0c44388ce213f5049e1a896cf7e0b6fa1a8da755a9da7dc6dc29d294f4a4fdb9e907959cf0cb2fa104d08eac6c79915c87c7528d

Download Submit
memory/1792-14-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/1792-18-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/2396-0-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/2396-1-0x0000000000660000-0x0000000000661000-memory.dmp

Filesize
4KB

Download
memory/2396-11-0x0000000003F10000-0x0000000003FD7000-memory.dmp

Filesize
796KB

Download
memory/2396-12-0x0000000003F10000-0x0000000003FD7000-memory.dmp

Filesize
796KB

Download
memory/2396-58-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/2448-16-0x0000000000400000-0x00000000004C7000-memory.dmp

Filesize
796KB

Download
memory/2740-19-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2740-57-0x0000000000210000-0x0000000000211000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads