darkcomet | 9b3c3f216155ab683b72ab4062b0a57ee3194e49cc73b1354ebc38f6c4b671ba

Analysis

max time kernel
150s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-12-2024 13:55

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe
Size

251KB
MD5

b88941407d61d4a039208c3e9ef7c620
SHA1

f02266d031d4db0d610be6df08895299fc72c8be
SHA256

9b3c3f216155ab683b72ab4062b0a57ee3194e49cc73b1354ebc38f6c4b671ba
SHA512

4a6fd8640ab96a3ea1885f22a5cf39648e14acd3c3a410d3020773ec7503a8c363d88b4ff1ff7333473790eebc78c5da78f98812a798f2e4ab3597ffc1d69a50
SSDEEP

6144:QcNYk1yuwEDBum3qYWnl0pd0EX3Zq2b6wfIDYm0PHQ:QcWkbgTYWnYnt/IDYhP

Score

10^/10

darkcomet guest16 discovery persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

127.0.0.1:1604

Mutex

DC_MUTEX-Z7L11J7

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
rPFWXHl9UQEN
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\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe

Deletes itself 1 IoCs

pid	Process
1332	notepad.exe

Executes dropped EXE 1 IoCs

pid	Process
2736	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe
2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.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-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	msdcsc.exe

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2316-0-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/files/0x0008000000015ed2-24.dat	upx
behavioral1/memory/2316-30-0x0000000004090000-0x0000000004147000-memory.dmp	upx
behavioral1/memory/2736-33-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2316-35-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2736-37-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2736-38-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2736-39-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2736-48-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2736-49-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2736-50-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2736-51-0x0000000000400000-0x00000000004B7000-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	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe
Token: SeSecurityPrivilege	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe
Token: SeBackupPrivilege	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe
Token: SeRestorePrivilege	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe
Token: SeShutdownPrivilege	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe
Token: SeDebugPrivilege	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe
Token: SeUndockPrivilege	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe
Token: 33	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe
Token: 34	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe
Token: 35	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2736	msdcsc.exe
Token: SeSecurityPrivilege	2736	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2736	msdcsc.exe
Token: SeLoadDriverPrivilege	2736	msdcsc.exe
Token: SeSystemProfilePrivilege	2736	msdcsc.exe
Token: SeSystemtimePrivilege	2736	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2736	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2736	msdcsc.exe
Token: SeCreatePagefilePrivilege	2736	msdcsc.exe
Token: SeBackupPrivilege	2736	msdcsc.exe
Token: SeRestorePrivilege	2736	msdcsc.exe
Token: SeShutdownPrivilege	2736	msdcsc.exe
Token: SeDebugPrivilege	2736	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2736	msdcsc.exe
Token: SeChangeNotifyPrivilege	2736	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2736	msdcsc.exe
Token: SeUndockPrivilege	2736	msdcsc.exe
Token: SeManageVolumePrivilege	2736	msdcsc.exe
Token: SeImpersonatePrivilege	2736	msdcsc.exe
Token: SeCreateGlobalPrivilege	2736	msdcsc.exe
Token: 33	2736	msdcsc.exe
Token: 34	2736	msdcsc.exe
Token: 35	2736	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2736	msdcsc.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 2316 wrote to memory of 1332	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe	31
PID 2316 wrote to memory of 1332	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe	31
PID 2316 wrote to memory of 1332	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe	31
PID 2316 wrote to memory of 1332	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe	31
PID 2316 wrote to memory of 1332	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe	31
PID 2316 wrote to memory of 1332	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe	31
PID 2316 wrote to memory of 1332	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe	31
PID 2316 wrote to memory of 1332	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe	31
PID 2316 wrote to memory of 1332	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe	31
PID 2316 wrote to memory of 1332	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe	31
PID 2316 wrote to memory of 1332	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe	31
PID 2316 wrote to memory of 1332	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe	31
PID 2316 wrote to memory of 1332	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe	31
PID 2316 wrote to memory of 1332	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe	31
PID 2316 wrote to memory of 1332	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe	31
PID 2316 wrote to memory of 1332	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe	31
PID 2316 wrote to memory of 1332	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe	31
PID 2316 wrote to memory of 1332	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe	31
PID 2316 wrote to memory of 2736	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe	32
PID 2316 wrote to memory of 2736	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe	32
PID 2316 wrote to memory of 2736	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe	32
PID 2316 wrote to memory of 2736	2316	b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe	32

C:\Users\Admin\AppData\Local\Temp\b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b88941407d61d4a039208c3e9ef7c620_JaffaCakes118.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:2316
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1332
- C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
  "C:\Users\Admin\AppData\Local\Temp\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:2736

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

Replay Monitor

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe

Filesize
251KB

MD5
b88941407d61d4a039208c3e9ef7c620

SHA1
f02266d031d4db0d610be6df08895299fc72c8be

SHA256
9b3c3f216155ab683b72ab4062b0a57ee3194e49cc73b1354ebc38f6c4b671ba

SHA512
4a6fd8640ab96a3ea1885f22a5cf39648e14acd3c3a410d3020773ec7503a8c363d88b4ff1ff7333473790eebc78c5da78f98812a798f2e4ab3597ffc1d69a50

Download Submit
memory/1332-4-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/1332-22-0x00000000001B0000-0x00000000001B1000-memory.dmp

Filesize
4KB

Download
memory/2316-35-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2316-1-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/2316-30-0x0000000004090000-0x0000000004147000-memory.dmp

Filesize
732KB

Download
memory/2316-31-0x0000000004090000-0x0000000004147000-memory.dmp

Filesize
732KB

Download
memory/2316-0-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2736-33-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2736-37-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2736-38-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2736-39-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2736-48-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2736-49-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2736-50-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2736-51-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads