darkcomet | de8e80f674a2e7e854461a2a6069e84ceda5bb3e8f72fd44a0ed03e7f0c65347

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13/10/2024, 07:04

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General

Target

3e75286b87ab8fd9cc8bdaadcac92c63_JaffaCakes118.exe
Size

1.5MB
MD5

3e75286b87ab8fd9cc8bdaadcac92c63
SHA1

e177d5d389d9be2436187eecda5e6a172fb494d6
SHA256

de8e80f674a2e7e854461a2a6069e84ceda5bb3e8f72fd44a0ed03e7f0c65347
SHA512

9b9504cad4cc78a84f81c6564f622fefceca9a721dd04fdb72d160665a5bbe96851f02d1ade36dc22ea3ad5544a9bddafd6371b3fbc7ebf8098a674d8631a8a0
SSDEEP

24576:5v94qGaDgeK6rXNnldUaCtfJ/NjoSkbO+kD+EPjyWl9H/K/vmeMhuELNJRjpeZvv:ZuaDA6RUV/hLbVfkObh1LNJJM

Score

10^/10

darkcomet discovery persistence rat trojan

Malware Config

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat 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\\Realtek\\RealtekR62.exe"	vbc.exe

Executes dropped EXE 1 IoCs

pid	Process
3796	RealtekR62.exe

Uses the VBS compiler for execution 1 TTPs

Command and Scripting Interpreter
T1059

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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Realtek = "C:\\Users\\Admin\\AppData\\Roaming\\Realtek\\RealtekR62.exe"	vbc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Realtek = "C:\\Users\\Admin\\AppData\\Roaming\\Realtek\\RealtekR62.exe"	vbc.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1660 set thread context of 4572	1660	3e75286b87ab8fd9cc8bdaadcac92c63_JaffaCakes118.exe	86
PID 3796 set thread context of 4332	3796	RealtekR62.exe	91

System Location Discovery: System Language Discovery 1 TTPs 6 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	3e75286b87ab8fd9cc8bdaadcac92c63_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RealtekR62.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	vbc.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4760	cmd.exe
3680	PING.EXE

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	vbc.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3680	PING.EXE

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
1660	3e75286b87ab8fd9cc8bdaadcac92c63_JaffaCakes118.exe
1660	3e75286b87ab8fd9cc8bdaadcac92c63_JaffaCakes118.exe
1660	3e75286b87ab8fd9cc8bdaadcac92c63_JaffaCakes118.exe
1660	3e75286b87ab8fd9cc8bdaadcac92c63_JaffaCakes118.exe
1660	3e75286b87ab8fd9cc8bdaadcac92c63_JaffaCakes118.exe
3796	RealtekR62.exe
3796	RealtekR62.exe
3796	RealtekR62.exe
3796	RealtekR62.exe
3796	RealtekR62.exe

Suspicious use of AdjustPrivilegeToken 50 IoCs

description	pid	Process
Token: SeDebugPrivilege	1660	3e75286b87ab8fd9cc8bdaadcac92c63_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	4572	vbc.exe
Token: SeSecurityPrivilege	4572	vbc.exe
Token: SeTakeOwnershipPrivilege	4572	vbc.exe
Token: SeLoadDriverPrivilege	4572	vbc.exe
Token: SeSystemProfilePrivilege	4572	vbc.exe
Token: SeSystemtimePrivilege	4572	vbc.exe
Token: SeProfSingleProcessPrivilege	4572	vbc.exe
Token: SeIncBasePriorityPrivilege	4572	vbc.exe
Token: SeCreatePagefilePrivilege	4572	vbc.exe
Token: SeBackupPrivilege	4572	vbc.exe
Token: SeRestorePrivilege	4572	vbc.exe
Token: SeShutdownPrivilege	4572	vbc.exe
Token: SeDebugPrivilege	4572	vbc.exe
Token: SeSystemEnvironmentPrivilege	4572	vbc.exe
Token: SeChangeNotifyPrivilege	4572	vbc.exe
Token: SeRemoteShutdownPrivilege	4572	vbc.exe
Token: SeUndockPrivilege	4572	vbc.exe
Token: SeManageVolumePrivilege	4572	vbc.exe
Token: SeImpersonatePrivilege	4572	vbc.exe
Token: SeCreateGlobalPrivilege	4572	vbc.exe
Token: 33	4572	vbc.exe
Token: 34	4572	vbc.exe
Token: 35	4572	vbc.exe
Token: 36	4572	vbc.exe
Token: SeDebugPrivilege	3796	RealtekR62.exe
Token: SeIncreaseQuotaPrivilege	4332	vbc.exe
Token: SeSecurityPrivilege	4332	vbc.exe
Token: SeTakeOwnershipPrivilege	4332	vbc.exe
Token: SeLoadDriverPrivilege	4332	vbc.exe
Token: SeSystemProfilePrivilege	4332	vbc.exe
Token: SeSystemtimePrivilege	4332	vbc.exe
Token: SeProfSingleProcessPrivilege	4332	vbc.exe
Token: SeIncBasePriorityPrivilege	4332	vbc.exe
Token: SeCreatePagefilePrivilege	4332	vbc.exe
Token: SeBackupPrivilege	4332	vbc.exe
Token: SeRestorePrivilege	4332	vbc.exe
Token: SeShutdownPrivilege	4332	vbc.exe
Token: SeDebugPrivilege	4332	vbc.exe
Token: SeSystemEnvironmentPrivilege	4332	vbc.exe
Token: SeChangeNotifyPrivilege	4332	vbc.exe
Token: SeRemoteShutdownPrivilege	4332	vbc.exe
Token: SeUndockPrivilege	4332	vbc.exe
Token: SeManageVolumePrivilege	4332	vbc.exe
Token: SeImpersonatePrivilege	4332	vbc.exe
Token: SeCreateGlobalPrivilege	4332	vbc.exe
Token: 33	4332	vbc.exe
Token: 34	4332	vbc.exe
Token: 35	4332	vbc.exe
Token: 36	4332	vbc.exe

Suspicious use of WriteProcessMemory 41 IoCs

description	pid	Process	procid_target
PID 1660 wrote to memory of 4572	1660	3e75286b87ab8fd9cc8bdaadcac92c63_JaffaCakes118.exe	86
PID 1660 wrote to memory of 4572	1660	3e75286b87ab8fd9cc8bdaadcac92c63_JaffaCakes118.exe	86
PID 1660 wrote to memory of 4572	1660	3e75286b87ab8fd9cc8bdaadcac92c63_JaffaCakes118.exe	86
PID 1660 wrote to memory of 4572	1660	3e75286b87ab8fd9cc8bdaadcac92c63_JaffaCakes118.exe	86
PID 1660 wrote to memory of 4572	1660	3e75286b87ab8fd9cc8bdaadcac92c63_JaffaCakes118.exe	86
PID 1660 wrote to memory of 4572	1660	3e75286b87ab8fd9cc8bdaadcac92c63_JaffaCakes118.exe	86
PID 1660 wrote to memory of 4572	1660	3e75286b87ab8fd9cc8bdaadcac92c63_JaffaCakes118.exe	86
PID 1660 wrote to memory of 4572	1660	3e75286b87ab8fd9cc8bdaadcac92c63_JaffaCakes118.exe	86
PID 1660 wrote to memory of 4572	1660	3e75286b87ab8fd9cc8bdaadcac92c63_JaffaCakes118.exe	86
PID 1660 wrote to memory of 4572	1660	3e75286b87ab8fd9cc8bdaadcac92c63_JaffaCakes118.exe	86
PID 1660 wrote to memory of 4572	1660	3e75286b87ab8fd9cc8bdaadcac92c63_JaffaCakes118.exe	86
PID 1660 wrote to memory of 4572	1660	3e75286b87ab8fd9cc8bdaadcac92c63_JaffaCakes118.exe	86
PID 1660 wrote to memory of 4572	1660	3e75286b87ab8fd9cc8bdaadcac92c63_JaffaCakes118.exe	86
PID 1660 wrote to memory of 4572	1660	3e75286b87ab8fd9cc8bdaadcac92c63_JaffaCakes118.exe	86
PID 1660 wrote to memory of 4572	1660	3e75286b87ab8fd9cc8bdaadcac92c63_JaffaCakes118.exe	86
PID 1660 wrote to memory of 4572	1660	3e75286b87ab8fd9cc8bdaadcac92c63_JaffaCakes118.exe	86
PID 4572 wrote to memory of 3796	4572	vbc.exe	87
PID 4572 wrote to memory of 3796	4572	vbc.exe	87
PID 4572 wrote to memory of 3796	4572	vbc.exe	87
PID 4572 wrote to memory of 4760	4572	vbc.exe	88
PID 4572 wrote to memory of 4760	4572	vbc.exe	88
PID 4572 wrote to memory of 4760	4572	vbc.exe	88
PID 4760 wrote to memory of 3680	4760	cmd.exe	90
PID 4760 wrote to memory of 3680	4760	cmd.exe	90
PID 4760 wrote to memory of 3680	4760	cmd.exe	90
PID 3796 wrote to memory of 4332	3796	RealtekR62.exe	91
PID 3796 wrote to memory of 4332	3796	RealtekR62.exe	91
PID 3796 wrote to memory of 4332	3796	RealtekR62.exe	91
PID 3796 wrote to memory of 4332	3796	RealtekR62.exe	91
PID 3796 wrote to memory of 4332	3796	RealtekR62.exe	91
PID 3796 wrote to memory of 4332	3796	RealtekR62.exe	91
PID 3796 wrote to memory of 4332	3796	RealtekR62.exe	91
PID 3796 wrote to memory of 4332	3796	RealtekR62.exe	91
PID 3796 wrote to memory of 4332	3796	RealtekR62.exe	91
PID 3796 wrote to memory of 4332	3796	RealtekR62.exe	91
PID 3796 wrote to memory of 4332	3796	RealtekR62.exe	91
PID 3796 wrote to memory of 4332	3796	RealtekR62.exe	91
PID 3796 wrote to memory of 4332	3796	RealtekR62.exe	91
PID 3796 wrote to memory of 4332	3796	RealtekR62.exe	91
PID 3796 wrote to memory of 4332	3796	RealtekR62.exe	91
PID 3796 wrote to memory of 4332	3796	RealtekR62.exe	91

C:\Users\Admin\AppData\Local\Temp\3e75286b87ab8fd9cc8bdaadcac92c63_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3e75286b87ab8fd9cc8bdaadcac92c63_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1660
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
  2⤵
  - Modifies WinLogon for persistence
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4572
- - C:\Users\Admin\AppData\Roaming\Realtek\RealtekR62.exe
    "C:\Users\Admin\AppData\Roaming\Realtek\RealtekR62.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3796
  - - C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      4⤵
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      PID:4332
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 5 > NUL&del "C:\Users\Admin\AppData\Local\Temp\3e75286b87ab8fd9cc8bdaadcac92c63_JaffaCakes118.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:4760
  - - C:\Windows\SysWOW64\PING.EXE
      ping 127.0.0.1 -n 5
      4⤵
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:3680

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

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

Remote System Discovery

T1018

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Realtek\RealtekR62.exe

Filesize
1.5MB

MD5
3e75286b87ab8fd9cc8bdaadcac92c63

SHA1
e177d5d389d9be2436187eecda5e6a172fb494d6

SHA256
de8e80f674a2e7e854461a2a6069e84ceda5bb3e8f72fd44a0ed03e7f0c65347

SHA512
9b9504cad4cc78a84f81c6564f622fefceca9a721dd04fdb72d160665a5bbe96851f02d1ade36dc22ea3ad5544a9bddafd6371b3fbc7ebf8098a674d8631a8a0

Download Submit
memory/1660-1-0x0000000075460000-0x0000000075A11000-memory.dmp

Filesize
5.7MB

Download
memory/1660-2-0x0000000075460000-0x0000000075A11000-memory.dmp

Filesize
5.7MB

Download
memory/1660-0-0x0000000075462000-0x0000000075463000-memory.dmp

Filesize
4KB

Download
memory/1660-8-0x0000000075460000-0x0000000075A11000-memory.dmp

Filesize
5.7MB

Download
memory/3796-79-0x0000000073800000-0x0000000073DB1000-memory.dmp

Filesize
5.7MB

Download
memory/3796-75-0x0000000073800000-0x0000000073DB1000-memory.dmp

Filesize
5.7MB

Download
memory/3796-74-0x0000000073800000-0x0000000073DB1000-memory.dmp

Filesize
5.7MB

Download
memory/3796-72-0x0000000073802000-0x0000000073803000-memory.dmp

Filesize
4KB

Download
memory/4332-80-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/4332-89-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/4332-95-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/4332-94-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/4332-93-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/4332-78-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/4332-92-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/4332-91-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/4332-81-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/4332-82-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/4332-83-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/4332-84-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/4332-85-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/4332-86-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/4332-87-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/4332-88-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/4332-90-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/4572-71-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/4572-3-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/4572-4-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/4572-6-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/4572-7-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download
memory/4572-9-0x0000000000400000-0x00000000004B3000-memory.dmp

Filesize
716KB

Download