darkcomet | 43e23ddaf45012061ea60e5aa62c9e70d9028ae13c477f5ae17cf7be7fb05384

Analysis

max time kernel
149s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
23/02/2025, 07:59

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General

Target

JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe
Size

253KB
MD5

1f7ff13139b885b00de51893a790f800
SHA1

ec7523a0a1744722f91fc82340bea00490fa4ed8
SHA256

43e23ddaf45012061ea60e5aa62c9e70d9028ae13c477f5ae17cf7be7fb05384
SHA512

1f7491e22c87569269f67842f8385ae61eb9a05dd4d60b46d84706c4b0059feb6a008eaf984cadd933d32e1dda04ad63392c69a0861c1122e39b30c2a3f80588
SSDEEP

6144:DBJVqu5jxRl+t6Ge0qw0kw9+Ks9a8/7z6lnv:DtqwjxRl+t6GfL7zcv

Score

10^/10

darkcomet guest16 defense_evasion discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

91.157.132.221:5555

Mutex

DC_MUTEX-AF28X5E

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
bCj76JyxRToA
install
true
offline_keylogger
true
persistence
false
reg_key
RSBot

rc4.plain

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:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe"	JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe

Windows security bypass 2 TTPs 1 IoCs

defense_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

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-1-5-21-100612193-3312047696-905266872-1000\Control Panel\International\Geo\Nation	JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe

Executes dropped EXE 1 IoCs

pid	Process
2160	msdcsc.exe

Windows security modification 2 TTPs 1 IoCs

defense_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

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-1-5-21-100612193-3312047696-905266872-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RSBot = "C:\\Users\\Admin\\AppData\\Roaming\\MSDCSC\\msdcsc.exe"	JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe

UPX packed file 10 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4724-0-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/files/0x0008000000023d4b-6.dat	upx
behavioral2/memory/4724-15-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/2160-16-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/2160-19-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/2160-21-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/2160-23-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/2160-25-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/2160-27-0x0000000000400000-0x00000000004BA000-memory.dmp	upx
behavioral2/memory/2160-29-0x0000000000400000-0x00000000004BA000-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 2 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	JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2160	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4724	JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe
Token: SeSecurityPrivilege	4724	JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe
Token: SeTakeOwnershipPrivilege	4724	JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe
Token: SeLoadDriverPrivilege	4724	JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe
Token: SeSystemProfilePrivilege	4724	JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe
Token: SeSystemtimePrivilege	4724	JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe
Token: SeProfSingleProcessPrivilege	4724	JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe
Token: SeIncBasePriorityPrivilege	4724	JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe
Token: SeCreatePagefilePrivilege	4724	JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe
Token: SeBackupPrivilege	4724	JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe
Token: SeRestorePrivilege	4724	JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe
Token: SeShutdownPrivilege	4724	JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe
Token: SeDebugPrivilege	4724	JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe
Token: SeSystemEnvironmentPrivilege	4724	JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe
Token: SeChangeNotifyPrivilege	4724	JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe
Token: SeRemoteShutdownPrivilege	4724	JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe
Token: SeUndockPrivilege	4724	JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe
Token: SeManageVolumePrivilege	4724	JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe
Token: SeImpersonatePrivilege	4724	JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe
Token: SeCreateGlobalPrivilege	4724	JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe
Token: 33	4724	JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe
Token: 34	4724	JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe
Token: 35	4724	JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe
Token: 36	4724	JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe
Token: SeIncreaseQuotaPrivilege	2160	msdcsc.exe
Token: SeSecurityPrivilege	2160	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2160	msdcsc.exe
Token: SeLoadDriverPrivilege	2160	msdcsc.exe
Token: SeSystemProfilePrivilege	2160	msdcsc.exe
Token: SeSystemtimePrivilege	2160	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2160	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2160	msdcsc.exe
Token: SeCreatePagefilePrivilege	2160	msdcsc.exe
Token: SeBackupPrivilege	2160	msdcsc.exe
Token: SeRestorePrivilege	2160	msdcsc.exe
Token: SeShutdownPrivilege	2160	msdcsc.exe
Token: SeDebugPrivilege	2160	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2160	msdcsc.exe
Token: SeChangeNotifyPrivilege	2160	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2160	msdcsc.exe
Token: SeUndockPrivilege	2160	msdcsc.exe
Token: SeManageVolumePrivilege	2160	msdcsc.exe
Token: SeImpersonatePrivilege	2160	msdcsc.exe
Token: SeCreateGlobalPrivilege	2160	msdcsc.exe
Token: 33	2160	msdcsc.exe
Token: 34	2160	msdcsc.exe
Token: 35	2160	msdcsc.exe
Token: 36	2160	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2160	msdcsc.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4724 wrote to memory of 2160	4724	JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe	87
PID 4724 wrote to memory of 2160	4724	JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe	87
PID 4724 wrote to memory of 2160	4724	JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe	87

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1f7ff13139b885b00de51893a790f800.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4724
- C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe
  "C:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe"
  2⤵
  - Windows security bypass
  - Executes dropped EXE
  - Windows security modification
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2160

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

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

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:\Users\Admin\AppData\Roaming\MSDCSC\msdcsc.exe

Filesize
253KB

MD5
1f7ff13139b885b00de51893a790f800

SHA1
ec7523a0a1744722f91fc82340bea00490fa4ed8

SHA256
43e23ddaf45012061ea60e5aa62c9e70d9028ae13c477f5ae17cf7be7fb05384

SHA512
1f7491e22c87569269f67842f8385ae61eb9a05dd4d60b46d84706c4b0059feb6a008eaf984cadd933d32e1dda04ad63392c69a0861c1122e39b30c2a3f80588

Download Submit
memory/2160-14-0x00000000009C0000-0x00000000009C1000-memory.dmp

Filesize
4KB

Download
memory/2160-16-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2160-19-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2160-21-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2160-23-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2160-25-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2160-27-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2160-29-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4724-0-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4724-1-0x0000000000AA0000-0x0000000000AA1000-memory.dmp

Filesize
4KB

Download
memory/4724-15-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads