darkcomet | 2b4d6cc309d66426d87561373019a305f680b78bf00b3cf4bfb5a70abfe2f43c

Analysis

max time kernel
149s
max time network
118s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
02-01-2025 23:30

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General

Target

JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.exe
Size

251KB
MD5

68e253a55c4a28731487e0fdc3d835d0
SHA1

135fcb91456244a3489a7df238736256c2a46710
SHA256

2b4d6cc309d66426d87561373019a305f680b78bf00b3cf4bfb5a70abfe2f43c
SHA512

ef2835bde74f6b3e70e368a724064f192c2b07d1a9b1d63285b211a36d5467714b686950cd6814c05e426f82a57cfa0b62caed2c8c1926317aae577ff93a3fa6
SSDEEP

6144:LcNYS996KFifeVjBpeExgVTFSXFoMc5RhCaL37fH:LcW7KEZlPzCy37f

Score

10^/10

darkcomet guest16 discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

127.0.0.1:1605

Mutex

DC_MUTEX-GXY5GTG

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
EAfvbkXl76Al
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
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\\Desktop\\MSDCSC\\msdcsc.exe"	JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.exe

Executes dropped EXE 1 IoCs

pid	Process
2520	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
1704	JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.exe
1704	JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Desktop\\MSDCSC\\msdcsc.exe"	JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Desktop\\MSDCSC\\msdcsc.exe"	msdcsc.exe

UPX packed file 11 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1704-0-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/files/0x0009000000016c4b-5.dat	upx
behavioral1/memory/2520-13-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1704-15-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2520-16-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2520-17-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2520-18-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2520-22-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2520-23-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2520-26-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2520-27-0x0000000000400000-0x00000000004B7000-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 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_68e253a55c4a28731487e0fdc3d835d0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1704	JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.exe
Token: SeSecurityPrivilege	1704	JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.exe
Token: SeTakeOwnershipPrivilege	1704	JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.exe
Token: SeLoadDriverPrivilege	1704	JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.exe
Token: SeSystemProfilePrivilege	1704	JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.exe
Token: SeSystemtimePrivilege	1704	JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.exe
Token: SeProfSingleProcessPrivilege	1704	JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.exe
Token: SeIncBasePriorityPrivilege	1704	JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.exe
Token: SeCreatePagefilePrivilege	1704	JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.exe
Token: SeBackupPrivilege	1704	JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.exe
Token: SeRestorePrivilege	1704	JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.exe
Token: SeShutdownPrivilege	1704	JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.exe
Token: SeDebugPrivilege	1704	JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.exe
Token: SeSystemEnvironmentPrivilege	1704	JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.exe
Token: SeChangeNotifyPrivilege	1704	JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.exe
Token: SeRemoteShutdownPrivilege	1704	JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.exe
Token: SeUndockPrivilege	1704	JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.exe
Token: SeManageVolumePrivilege	1704	JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.exe
Token: SeImpersonatePrivilege	1704	JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.exe
Token: SeCreateGlobalPrivilege	1704	JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.exe
Token: 33	1704	JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.exe
Token: 34	1704	JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.exe
Token: 35	1704	JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.exe
Token: SeIncreaseQuotaPrivilege	2520	msdcsc.exe
Token: SeSecurityPrivilege	2520	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2520	msdcsc.exe
Token: SeLoadDriverPrivilege	2520	msdcsc.exe
Token: SeSystemProfilePrivilege	2520	msdcsc.exe
Token: SeSystemtimePrivilege	2520	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2520	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2520	msdcsc.exe
Token: SeCreatePagefilePrivilege	2520	msdcsc.exe
Token: SeBackupPrivilege	2520	msdcsc.exe
Token: SeRestorePrivilege	2520	msdcsc.exe
Token: SeShutdownPrivilege	2520	msdcsc.exe
Token: SeDebugPrivilege	2520	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2520	msdcsc.exe
Token: SeChangeNotifyPrivilege	2520	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2520	msdcsc.exe
Token: SeUndockPrivilege	2520	msdcsc.exe
Token: SeManageVolumePrivilege	2520	msdcsc.exe
Token: SeImpersonatePrivilege	2520	msdcsc.exe
Token: SeCreateGlobalPrivilege	2520	msdcsc.exe
Token: 33	2520	msdcsc.exe
Token: 34	2520	msdcsc.exe
Token: 35	2520	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2520	msdcsc.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1704 wrote to memory of 2520	1704	JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.exe	30
PID 1704 wrote to memory of 2520	1704	JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.exe	30
PID 1704 wrote to memory of 2520	1704	JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.exe	30
PID 1704 wrote to memory of 2520	1704	JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.exe	30

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_68e253a55c4a28731487e0fdc3d835d0.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:1704
- C:\Users\Admin\Desktop\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Desktop\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2520

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

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

\Users\Admin\Desktop\MSDCSC\msdcsc.exe

Filesize
251KB

MD5
68e253a55c4a28731487e0fdc3d835d0

SHA1
135fcb91456244a3489a7df238736256c2a46710

SHA256
2b4d6cc309d66426d87561373019a305f680b78bf00b3cf4bfb5a70abfe2f43c

SHA512
ef2835bde74f6b3e70e368a724064f192c2b07d1a9b1d63285b211a36d5467714b686950cd6814c05e426f82a57cfa0b62caed2c8c1926317aae577ff93a3fa6

Download Submit
memory/1704-15-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1704-1-0x00000000003E0000-0x00000000003E1000-memory.dmp

Filesize
4KB

Download
memory/1704-0-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1704-11-0x0000000003DB0000-0x0000000003E67000-memory.dmp

Filesize
732KB

Download
memory/2520-16-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2520-13-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2520-17-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2520-18-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2520-22-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2520-23-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2520-26-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2520-27-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads