darkcomet | 501ccde156c54df0367c00411098d252d35de3f6c77ba9f925443e721536a3a4

General

Target

8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe
Size

700KB
MD5

8fb054263f441ee44bf20f7d9a364e3d
SHA1

a75b5d8cf569b04033d3910ca6045a105bf46736
SHA256

501ccde156c54df0367c00411098d252d35de3f6c77ba9f925443e721536a3a4
SHA512

ab517e731bbd14b7c7271f482bb9f6f73d5a891373ee43a26068ec9faa775caff11f7fb9cd95af327ae2e81f66d3a40380a00dc95ba7069a7a51217c818891b6
SSDEEP

12288:I9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/hH8I:8Z1xuVVjfFoynPaVBUR8f+kN10EBH

Score

10^/10

darkcomet company discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

COMPANY

C2

austinabbey.no-ip.biz:1604

Mutex

DC_MUTEX-QWK9ER5

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
DVHtxRe2Naeb
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

Processes:

8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe

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"	8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe

Modifies security service 2 TTPs 1 IoCs
evasion

Modify Registry
T1112

Windows Service
T1543.003

Processes:

msdcsc.exe

description ioc process

Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4" msdcsc.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\wscsvc\Start = "4"	msdcsc.exe

Windows security bypass 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

msdcsc.exe

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

Disables RegEdit via registry modification 1 IoCs

evasion

Processes:

msdcsc.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	msdcsc.exe

Disables Task Manager via registry modification
evasion
Drops file in Drivers directory 1 IoCs

Processes:

8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe

description ioc process

File opened for modification C:\Windows\system32\drivers\etc\hosts 8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe
Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid process

2768 msdcsc.exe
Loads dropped DLL 2 IoCs

Processes:

8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe

pid process

2440 8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe
2440 8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe

description	ioc	process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe

pid	process
2768	msdcsc.exe

pid	process
2440	8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe
2440	8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

msdcsc.exe

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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exemsdcsc.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	msdcsc.exe

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

Processes:

msdcsc.exenotepad.exe8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exeDllHost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	DllHost.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

Processes:

8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exemsdcsc.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	2440	8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe
Token: SeSecurityPrivilege	2440	8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2440	8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2440	8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2440	8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2440	8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2440	8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2440	8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2440	8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe
Token: SeBackupPrivilege	2440	8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe
Token: SeRestorePrivilege	2440	8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe
Token: SeShutdownPrivilege	2440	8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe
Token: SeDebugPrivilege	2440	8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2440	8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2440	8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2440	8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe
Token: SeUndockPrivilege	2440	8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2440	8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2440	8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2440	8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe
Token: 33	2440	8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe
Token: 34	2440	8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe
Token: 35	2440	8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2768	msdcsc.exe
Token: SeSecurityPrivilege	2768	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2768	msdcsc.exe
Token: SeLoadDriverPrivilege	2768	msdcsc.exe
Token: SeSystemProfilePrivilege	2768	msdcsc.exe
Token: SeSystemtimePrivilege	2768	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2768	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2768	msdcsc.exe
Token: SeCreatePagefilePrivilege	2768	msdcsc.exe
Token: SeBackupPrivilege	2768	msdcsc.exe
Token: SeRestorePrivilege	2768	msdcsc.exe
Token: SeShutdownPrivilege	2768	msdcsc.exe
Token: SeDebugPrivilege	2768	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2768	msdcsc.exe
Token: SeChangeNotifyPrivilege	2768	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2768	msdcsc.exe
Token: SeUndockPrivilege	2768	msdcsc.exe
Token: SeManageVolumePrivilege	2768	msdcsc.exe
Token: SeImpersonatePrivilege	2768	msdcsc.exe
Token: SeCreateGlobalPrivilege	2768	msdcsc.exe
Token: 33	2768	msdcsc.exe
Token: 34	2768	msdcsc.exe
Token: 35	2768	msdcsc.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

DllHost.exe

pid process

1944 DllHost.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

msdcsc.exeDllHost.exe

pid process

2768 msdcsc.exe
1944 DllHost.exe
1944 DllHost.exe

pid	process
1944	DllHost.exe

pid	process
2768	msdcsc.exe
1944	DllHost.exe
1944	DllHost.exe

Suspicious use of WriteProcessMemory 27 IoCs

Processes:

8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exemsdcsc.exe

description	pid	process	target process
PID 2440 wrote to memory of 2768	2440	8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe	msdcsc.exe
PID 2440 wrote to memory of 2768	2440	8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe	msdcsc.exe
PID 2440 wrote to memory of 2768	2440	8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe	msdcsc.exe
PID 2440 wrote to memory of 2768	2440	8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe	msdcsc.exe
PID 2768 wrote to memory of 2896	2768	msdcsc.exe	notepad.exe
PID 2768 wrote to memory of 2896	2768	msdcsc.exe	notepad.exe
PID 2768 wrote to memory of 2896	2768	msdcsc.exe	notepad.exe
PID 2768 wrote to memory of 2896	2768	msdcsc.exe	notepad.exe
PID 2768 wrote to memory of 2896	2768	msdcsc.exe	notepad.exe
PID 2768 wrote to memory of 2896	2768	msdcsc.exe	notepad.exe
PID 2768 wrote to memory of 2896	2768	msdcsc.exe	notepad.exe
PID 2768 wrote to memory of 2896	2768	msdcsc.exe	notepad.exe
PID 2768 wrote to memory of 2896	2768	msdcsc.exe	notepad.exe
PID 2768 wrote to memory of 2896	2768	msdcsc.exe	notepad.exe
PID 2768 wrote to memory of 2896	2768	msdcsc.exe	notepad.exe
PID 2768 wrote to memory of 2896	2768	msdcsc.exe	notepad.exe
PID 2768 wrote to memory of 2896	2768	msdcsc.exe	notepad.exe
PID 2768 wrote to memory of 2896	2768	msdcsc.exe	notepad.exe
PID 2768 wrote to memory of 2896	2768	msdcsc.exe	notepad.exe
PID 2768 wrote to memory of 2896	2768	msdcsc.exe	notepad.exe
PID 2768 wrote to memory of 2896	2768	msdcsc.exe	notepad.exe
PID 2768 wrote to memory of 2896	2768	msdcsc.exe	notepad.exe
PID 2768 wrote to memory of 2896	2768	msdcsc.exe	notepad.exe
PID 2768 wrote to memory of 2896	2768	msdcsc.exe	notepad.exe
PID 2768 wrote to memory of 2896	2768	msdcsc.exe	notepad.exe
PID 2768 wrote to memory of 2896	2768	msdcsc.exe	notepad.exe
PID 2768 wrote to memory of 2896	2768	msdcsc.exe	notepad.exe

C:\Users\Admin\AppData\Local\Temp\8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8fb054263f441ee44bf20f7d9a364e3d_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in Drivers directory
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2440
- C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
  "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
  2⤵
  - Modifies security service
  - Windows security bypass
  - Disables RegEdit via registry modification
  - Executes dropped EXE
  - Windows security modification
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2768
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2896

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:1944

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

2

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Winlogon Helper DLL

1

T1547.004

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Impair Defenses

2

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\INDEX.JPEG

Filesize
10KB

MD5
ddfd1dcdda1f174f90bafe2743d26ca1

SHA1
71b38c7f381cd994af364220ed13e2d40bc2aba5

SHA256
2bc7c5817fa1265c8b4481d6d4ecd2b88bc1ab0135d47a9a3b8f6df7b9717318

SHA512
28600cf7af528b4160c3530de820de0178d20dd46e2db46a378039b199b57182fcbb705da73fe3ba5986c1bff501b4bdc592ec4ee787d1b1570bcb8b402f12bd

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

Filesize
700KB

MD5
8fb054263f441ee44bf20f7d9a364e3d

SHA1
a75b5d8cf569b04033d3910ca6045a105bf46736

SHA256
501ccde156c54df0367c00411098d252d35de3f6c77ba9f925443e721536a3a4

SHA512
ab517e731bbd14b7c7271f482bb9f6f73d5a891373ee43a26068ec9faa775caff11f7fb9cd95af327ae2e81f66d3a40380a00dc95ba7069a7a51217c818891b6

Download Submit
memory/1944-7-0x00000000000B0000-0x00000000000B2000-memory.dmp

Filesize
8KB

Download
memory/1944-8-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/1944-59-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/2440-58-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2440-6-0x00000000005C0000-0x00000000005C2000-memory.dmp

Filesize
8KB

Download
memory/2440-0-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2768-68-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2768-65-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2768-60-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2768-61-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2768-62-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2768-63-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2768-64-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2768-73-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2768-66-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2768-67-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2768-72-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2768-69-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2768-70-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2768-71-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2896-19-0x0000000000080000-0x0000000000081000-memory.dmp

Filesize
4KB

Download
memory/2896-57-0x0000000000200000-0x0000000000201000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads