darkcomet | 1b0717bb1a92dbdc992dfd8958c2ba4d4db22b056a728ee1bdd06b9eb9d93be2

Analysis

max time kernel
150s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
25-11-2024 02:01

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General

Target

NjRat 0.7D Golden Edition - Rus.exe
Size

830KB
MD5

cc34f66c10eecdd6061bb9a8a3f19d88
SHA1

6170e74e5133ec3fed9b0c9fd49f201246640f6b
SHA256

6dc87cb8cd2b6a30b93d435f1d4143e2a904f0bd0c2051db748b24fac8de8666
SHA512

1d591b1353e3d2d605cd8dabd82e35da4bf3427ca3895962eb0d17fa92680974ea9b99e7b58eaee5f3f8820ed158b3fb62e2f4370ef13aa2b16d12ae3b981232
SSDEEP

12288:mcW7KEZlPzCy37ztCHfNBZbsq16hMOeMmBwfjF75mkBTundtnTs7+C6tbm:qKiRzC0ztcEhhe5wpEkgnnW68

Score

10^/10

darkcomet lol discovery evasion persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

lol

dcplusplus.ddns.net:1604

Mutex

DC_MUTEX-TS69B03

Attributes

InstallPath
startup.exe
gencode
RAe9JPzTc6ht
install
true
offline_keylogger
true
persistence
false
reg_key
MicrosoftUpdate

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\\system32\\startup.exe"	NjRat 0.7D Golden Edition - Rus.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\EnableFirewall = "0"	NJRAT 0.7D GOLDEN EDITION - RUS.EXE
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	NJRAT 0.7D GOLDEN EDITION - RUS.EXE
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	startup.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	startup.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	startup.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	NJRAT 0.7D GOLDEN EDITION - RUS.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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	NjRat 0.7D Golden Edition - Rus.exe

Executes dropped EXE 1 IoCs

pid	Process
2460	startup.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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicrosoftUpdate = "C:\\Windows\\system32\\startup.exe"	NjRat 0.7D Golden Edition - Rus.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\startup.exe	NjRat 0.7D Golden Edition - Rus.exe
File opened for modification	C:\Windows\SysWOW64\startup.exe	NjRat 0.7D Golden Edition - Rus.exe
File opened for modification	C:\Windows\SysWOW64\	NjRat 0.7D Golden Edition - Rus.exe

UPX packed file 20 IoCs

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

upx

resource	yara_rule
behavioral6/memory/212-0-0x0000000000400000-0x00000000006C8000-memory.dmp	upx
behavioral6/files/0x000b000000023c7f-5.dat	upx
behavioral6/memory/212-7-0x0000000000400000-0x00000000006C8000-memory.dmp	upx
behavioral6/memory/2460-10-0x0000000000400000-0x00000000006C8000-memory.dmp	upx
behavioral6/memory/212-11-0x0000000000400000-0x00000000006C8000-memory.dmp	upx
behavioral6/memory/1200-12-0x0000000000400000-0x00000000006C8000-memory.dmp	upx
behavioral6/memory/1200-13-0x0000000000400000-0x00000000006C8000-memory.dmp	upx
behavioral6/memory/1200-14-0x0000000000400000-0x00000000006C8000-memory.dmp	upx
behavioral6/memory/1200-15-0x0000000000400000-0x00000000006C8000-memory.dmp	upx
behavioral6/memory/1200-16-0x0000000000400000-0x00000000006C8000-memory.dmp	upx
behavioral6/memory/1200-17-0x0000000000400000-0x00000000006C8000-memory.dmp	upx
behavioral6/memory/1200-18-0x0000000000400000-0x00000000006C8000-memory.dmp	upx
behavioral6/memory/1200-19-0x0000000000400000-0x00000000006C8000-memory.dmp	upx
behavioral6/memory/1200-20-0x0000000000400000-0x00000000006C8000-memory.dmp	upx
behavioral6/memory/1200-21-0x0000000000400000-0x00000000006C8000-memory.dmp	upx
behavioral6/memory/1200-22-0x0000000000400000-0x00000000006C8000-memory.dmp	upx
behavioral6/memory/1200-23-0x0000000000400000-0x00000000006C8000-memory.dmp	upx
behavioral6/memory/1200-24-0x0000000000400000-0x00000000006C8000-memory.dmp	upx
behavioral6/memory/1200-25-0x0000000000400000-0x00000000006C8000-memory.dmp	upx
behavioral6/memory/1200-26-0x0000000000400000-0x00000000006C8000-memory.dmp	upx

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	NjRat 0.7D Golden Edition - Rus.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	NJRAT 0.7D GOLDEN EDITION - RUS.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	startup.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	NjRat 0.7D Golden Edition - Rus.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	212	NjRat 0.7D Golden Edition - Rus.exe
Token: SeSecurityPrivilege	212	NjRat 0.7D Golden Edition - Rus.exe
Token: SeTakeOwnershipPrivilege	212	NjRat 0.7D Golden Edition - Rus.exe
Token: SeLoadDriverPrivilege	212	NjRat 0.7D Golden Edition - Rus.exe
Token: SeSystemProfilePrivilege	212	NjRat 0.7D Golden Edition - Rus.exe
Token: SeSystemtimePrivilege	212	NjRat 0.7D Golden Edition - Rus.exe
Token: SeProfSingleProcessPrivilege	212	NjRat 0.7D Golden Edition - Rus.exe
Token: SeIncBasePriorityPrivilege	212	NjRat 0.7D Golden Edition - Rus.exe
Token: SeCreatePagefilePrivilege	212	NjRat 0.7D Golden Edition - Rus.exe
Token: SeBackupPrivilege	212	NjRat 0.7D Golden Edition - Rus.exe
Token: SeRestorePrivilege	212	NjRat 0.7D Golden Edition - Rus.exe
Token: SeShutdownPrivilege	212	NjRat 0.7D Golden Edition - Rus.exe
Token: SeDebugPrivilege	212	NjRat 0.7D Golden Edition - Rus.exe
Token: SeSystemEnvironmentPrivilege	212	NjRat 0.7D Golden Edition - Rus.exe
Token: SeChangeNotifyPrivilege	212	NjRat 0.7D Golden Edition - Rus.exe
Token: SeRemoteShutdownPrivilege	212	NjRat 0.7D Golden Edition - Rus.exe
Token: SeUndockPrivilege	212	NjRat 0.7D Golden Edition - Rus.exe
Token: SeManageVolumePrivilege	212	NjRat 0.7D Golden Edition - Rus.exe
Token: SeImpersonatePrivilege	212	NjRat 0.7D Golden Edition - Rus.exe
Token: SeCreateGlobalPrivilege	212	NjRat 0.7D Golden Edition - Rus.exe
Token: 33	212	NjRat 0.7D Golden Edition - Rus.exe
Token: 34	212	NjRat 0.7D Golden Edition - Rus.exe
Token: 35	212	NjRat 0.7D Golden Edition - Rus.exe
Token: 36	212	NjRat 0.7D Golden Edition - Rus.exe
Token: SeIncreaseQuotaPrivilege	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE
Token: SeSecurityPrivilege	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE
Token: SeTakeOwnershipPrivilege	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE
Token: SeLoadDriverPrivilege	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE
Token: SeSystemProfilePrivilege	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE
Token: SeSystemtimePrivilege	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE
Token: SeProfSingleProcessPrivilege	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE
Token: SeIncBasePriorityPrivilege	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE
Token: SeCreatePagefilePrivilege	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE
Token: SeBackupPrivilege	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE
Token: SeRestorePrivilege	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE
Token: SeShutdownPrivilege	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE
Token: SeDebugPrivilege	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE
Token: SeSystemEnvironmentPrivilege	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE
Token: SeChangeNotifyPrivilege	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE
Token: SeRemoteShutdownPrivilege	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE
Token: SeUndockPrivilege	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE
Token: SeManageVolumePrivilege	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE
Token: SeImpersonatePrivilege	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE
Token: SeCreateGlobalPrivilege	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE
Token: 33	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE
Token: 34	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE
Token: 35	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE
Token: 36	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE
Token: SeIncreaseQuotaPrivilege	2460	startup.exe
Token: SeSecurityPrivilege	2460	startup.exe
Token: SeTakeOwnershipPrivilege	2460	startup.exe
Token: SeLoadDriverPrivilege	2460	startup.exe
Token: SeSystemProfilePrivilege	2460	startup.exe
Token: SeSystemtimePrivilege	2460	startup.exe
Token: SeProfSingleProcessPrivilege	2460	startup.exe
Token: SeIncBasePriorityPrivilege	2460	startup.exe
Token: SeCreatePagefilePrivilege	2460	startup.exe
Token: SeBackupPrivilege	2460	startup.exe
Token: SeRestorePrivilege	2460	startup.exe
Token: SeShutdownPrivilege	2460	startup.exe
Token: SeDebugPrivilege	2460	startup.exe
Token: SeSystemEnvironmentPrivilege	2460	startup.exe
Token: SeChangeNotifyPrivilege	2460	startup.exe
Token: SeRemoteShutdownPrivilege	2460	startup.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 212 wrote to memory of 1200	212	NjRat 0.7D Golden Edition - Rus.exe	86
PID 212 wrote to memory of 1200	212	NjRat 0.7D Golden Edition - Rus.exe	86
PID 212 wrote to memory of 1200	212	NjRat 0.7D Golden Edition - Rus.exe	86
PID 1200 wrote to memory of 632	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE	87
PID 1200 wrote to memory of 632	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE	87
PID 1200 wrote to memory of 632	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE	87
PID 1200 wrote to memory of 632	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE	87
PID 1200 wrote to memory of 632	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE	87
PID 1200 wrote to memory of 632	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE	87
PID 1200 wrote to memory of 632	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE	87
PID 1200 wrote to memory of 632	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE	87
PID 1200 wrote to memory of 632	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE	87
PID 1200 wrote to memory of 632	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE	87
PID 1200 wrote to memory of 632	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE	87
PID 1200 wrote to memory of 632	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE	87
PID 1200 wrote to memory of 632	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE	87
PID 1200 wrote to memory of 632	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE	87
PID 1200 wrote to memory of 632	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE	87
PID 1200 wrote to memory of 632	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE	87
PID 1200 wrote to memory of 632	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE	87
PID 1200 wrote to memory of 632	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE	87
PID 1200 wrote to memory of 632	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE	87
PID 1200 wrote to memory of 632	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE	87
PID 1200 wrote to memory of 632	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE	87
PID 1200 wrote to memory of 632	1200	NJRAT 0.7D GOLDEN EDITION - RUS.EXE	87
PID 212 wrote to memory of 2460	212	NjRat 0.7D Golden Edition - Rus.exe	89
PID 212 wrote to memory of 2460	212	NjRat 0.7D Golden Edition - Rus.exe	89
PID 212 wrote to memory of 2460	212	NjRat 0.7D Golden Edition - Rus.exe	89

C:\Users\Admin\AppData\Local\Temp\NjRat 0.7D Golden Edition - Rus.exe
"C:\Users\Admin\AppData\Local\Temp\NjRat 0.7D Golden Edition - Rus.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:212
- C:\Users\Admin\AppData\Local\Temp\NJRAT 0.7D GOLDEN EDITION - RUS.EXE
  "C:\Users\Admin\AppData\Local\Temp\NJRAT 0.7D GOLDEN EDITION - RUS.EXE"
  2⤵
  - Modifies firewall policy service
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1200
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:632
- C:\Windows\SysWOW64\startup.exe
  "C:\Windows\system32\startup.exe"
  2⤵
  - Modifies firewall policy service
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2460

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

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

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

C:\Windows\SysWOW64\startup.exe

Filesize
830KB

MD5
cc34f66c10eecdd6061bb9a8a3f19d88

SHA1
6170e74e5133ec3fed9b0c9fd49f201246640f6b

SHA256
6dc87cb8cd2b6a30b93d435f1d4143e2a904f0bd0c2051db748b24fac8de8666

SHA512
1d591b1353e3d2d605cd8dabd82e35da4bf3427ca3895962eb0d17fa92680974ea9b99e7b58eaee5f3f8820ed158b3fb62e2f4370ef13aa2b16d12ae3b981232

Download Submit
memory/212-11-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/212-1-0x00000000024C0000-0x00000000024C1000-memory.dmp

Filesize
4KB

Download
memory/212-0-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/212-7-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/632-6-0x0000000000EF0000-0x0000000000EF1000-memory.dmp

Filesize
4KB

Download
memory/1200-14-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/1200-19-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/1200-12-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/1200-13-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/1200-4-0x0000000000890000-0x0000000000891000-memory.dmp

Filesize
4KB

Download
memory/1200-15-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/1200-16-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/1200-17-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/1200-18-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/1200-26-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/1200-20-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/1200-21-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/1200-22-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/1200-23-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/1200-24-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/1200-25-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download
memory/2460-10-0x0000000000400000-0x00000000006C8000-memory.dmp

Filesize
2.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads