darkcomet | 0e2038cfb6ccf86b41faa3b72f18c9a809c71b30b58ee8e13fa6d0080f31498f

Analysis

max time kernel
150s
max time network
118s
platform
windows7_x64
resource
win7-20250207-en
resource tags

arch:x64arch:x86image:win7-20250207-enlocale:en-usos:windows7-x64system
submitted
26/02/2025, 21:56

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General

Target

JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe
Size

251KB
MD5

28d4575ac8a1304e6a95fab1a93f7352
SHA1

fd4e44ac868893e8cc3e2878e0d9a74b2b4650ec
SHA256

0e2038cfb6ccf86b41faa3b72f18c9a809c71b30b58ee8e13fa6d0080f31498f
SHA512

b1ac195e8e205a4fc41101952de65d17ae39dc0942f741bebf98d54e15cc98e09593f4818c5a43e5c6eae1fc0b5275f093d8e99da1ae96d352ce7781e9048396
SSDEEP

6144:2cNYS996KFifeVjBpeExgVTFSXFoMc5RhCaL37:2cW7KEZlPzCy37

Score

10^/10

darkcomet new defense_evasion discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

new

legolas8.no-ip.biz:1600

Mutex

DC_MUTEX-QHPRJU6

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
2YhVKUacQCh2
install
true
offline_keylogger
true
persistence
true
reg_key
MicroUpdate

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:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe

Windows security bypass 2 TTPs 2 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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	msdcsc.exe

Executes dropped EXE 1 IoCs

pid	Process
1724	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
2864	JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe
2864	JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe

Windows security modification 2 TTPs 2 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\UpdatesDisableNotify = "1"	msdcsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msdcsc.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-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	msdcsc.exe

UPX packed file 19 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2864-0-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/files/0x0008000000015d84-5.dat	upx
behavioral1/memory/2864-11-0x0000000002560000-0x0000000002617000-memory.dmp	upx
behavioral1/memory/2864-42-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1724-43-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1724-44-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1724-45-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1724-46-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1724-47-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1724-48-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1724-49-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1724-50-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1724-51-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1724-52-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1724-53-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1724-54-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1724-55-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1724-56-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1724-57-0x0000000000400000-0x00000000004B7000-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 3 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_28d4575ac8a1304e6a95fab1a93f7352.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1724	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2864	JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe
Token: SeSecurityPrivilege	2864	JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe
Token: SeTakeOwnershipPrivilege	2864	JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe
Token: SeLoadDriverPrivilege	2864	JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe
Token: SeSystemProfilePrivilege	2864	JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe
Token: SeSystemtimePrivilege	2864	JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe
Token: SeProfSingleProcessPrivilege	2864	JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe
Token: SeIncBasePriorityPrivilege	2864	JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe
Token: SeCreatePagefilePrivilege	2864	JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe
Token: SeBackupPrivilege	2864	JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe
Token: SeRestorePrivilege	2864	JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe
Token: SeShutdownPrivilege	2864	JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe
Token: SeDebugPrivilege	2864	JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe
Token: SeSystemEnvironmentPrivilege	2864	JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe
Token: SeChangeNotifyPrivilege	2864	JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe
Token: SeRemoteShutdownPrivilege	2864	JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe
Token: SeUndockPrivilege	2864	JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe
Token: SeManageVolumePrivilege	2864	JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe
Token: SeImpersonatePrivilege	2864	JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe
Token: SeCreateGlobalPrivilege	2864	JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe
Token: 33	2864	JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe
Token: 34	2864	JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe
Token: 35	2864	JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe
Token: SeIncreaseQuotaPrivilege	1724	msdcsc.exe
Token: SeSecurityPrivilege	1724	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1724	msdcsc.exe
Token: SeLoadDriverPrivilege	1724	msdcsc.exe
Token: SeSystemProfilePrivilege	1724	msdcsc.exe
Token: SeSystemtimePrivilege	1724	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1724	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1724	msdcsc.exe
Token: SeCreatePagefilePrivilege	1724	msdcsc.exe
Token: SeBackupPrivilege	1724	msdcsc.exe
Token: SeRestorePrivilege	1724	msdcsc.exe
Token: SeShutdownPrivilege	1724	msdcsc.exe
Token: SeDebugPrivilege	1724	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1724	msdcsc.exe
Token: SeChangeNotifyPrivilege	1724	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1724	msdcsc.exe
Token: SeUndockPrivilege	1724	msdcsc.exe
Token: SeManageVolumePrivilege	1724	msdcsc.exe
Token: SeImpersonatePrivilege	1724	msdcsc.exe
Token: SeCreateGlobalPrivilege	1724	msdcsc.exe
Token: 33	1724	msdcsc.exe
Token: 34	1724	msdcsc.exe
Token: 35	1724	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1724	msdcsc.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 2864 wrote to memory of 1724	2864	JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe	31
PID 2864 wrote to memory of 1724	2864	JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe	31
PID 2864 wrote to memory of 1724	2864	JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe	31
PID 2864 wrote to memory of 1724	2864	JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe	31
PID 1724 wrote to memory of 2060	1724	msdcsc.exe	32
PID 1724 wrote to memory of 2060	1724	msdcsc.exe	32
PID 1724 wrote to memory of 2060	1724	msdcsc.exe	32
PID 1724 wrote to memory of 2060	1724	msdcsc.exe	32
PID 1724 wrote to memory of 2060	1724	msdcsc.exe	32
PID 1724 wrote to memory of 2060	1724	msdcsc.exe	32
PID 1724 wrote to memory of 2060	1724	msdcsc.exe	32
PID 1724 wrote to memory of 2060	1724	msdcsc.exe	32
PID 1724 wrote to memory of 2060	1724	msdcsc.exe	32
PID 1724 wrote to memory of 2060	1724	msdcsc.exe	32
PID 1724 wrote to memory of 2060	1724	msdcsc.exe	32
PID 1724 wrote to memory of 2060	1724	msdcsc.exe	32
PID 1724 wrote to memory of 2060	1724	msdcsc.exe	32
PID 1724 wrote to memory of 2060	1724	msdcsc.exe	32
PID 1724 wrote to memory of 2060	1724	msdcsc.exe	32
PID 1724 wrote to memory of 2060	1724	msdcsc.exe	32
PID 1724 wrote to memory of 2060	1724	msdcsc.exe	32
PID 1724 wrote to memory of 2060	1724	msdcsc.exe	32
PID 1724 wrote to memory of 2060	1724	msdcsc.exe	32
PID 1724 wrote to memory of 2060	1724	msdcsc.exe	32
PID 1724 wrote to memory of 2060	1724	msdcsc.exe	32
PID 1724 wrote to memory of 2060	1724	msdcsc.exe	32
PID 1724 wrote to memory of 2060	1724	msdcsc.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_28d4575ac8a1304e6a95fab1a93f7352.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2864
- C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe
  "C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe"
  2⤵
  - Windows security bypass
  - Executes dropped EXE
  - Windows security modification
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1724
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2060

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

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

\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe

Filesize
251KB

MD5
28d4575ac8a1304e6a95fab1a93f7352

SHA1
fd4e44ac868893e8cc3e2878e0d9a74b2b4650ec

SHA256
0e2038cfb6ccf86b41faa3b72f18c9a809c71b30b58ee8e13fa6d0080f31498f

SHA512
b1ac195e8e205a4fc41101952de65d17ae39dc0942f741bebf98d54e15cc98e09593f4818c5a43e5c6eae1fc0b5275f093d8e99da1ae96d352ce7781e9048396

Download Submit
memory/1724-52-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1724-51-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1724-57-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1724-56-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1724-14-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/1724-55-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1724-54-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1724-47-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1724-46-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1724-44-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1724-53-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1724-43-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1724-45-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1724-48-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1724-49-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1724-50-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2060-16-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2060-41-0x0000000000250000-0x0000000000251000-memory.dmp

Filesize
4KB

Download
memory/2864-42-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2864-0-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2864-1-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/2864-11-0x0000000002560000-0x0000000002617000-memory.dmp

Filesize
732KB

Download
memory/2864-12-0x0000000002560000-0x0000000002617000-memory.dmp

Filesize
732KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads