darkcomet | a6eb9a2723bb6a559ee24986287ab685689952d594a89f375bd3bd605c6568c3

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
12/07/2024, 11:29

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
3d30faa7be5d1233282e64a6de7c8543_JaffaCakes118.exe
Size 1.3MB
Sample240712-nln5gatejh
SHA256 a6eb9a2723bb6a559ee24986287ab685689952d594a89f375bd3bd605c6568c3
MD5 3d30faa7be5d1233282e64a6de7c8543
SHA1 c3e63ab67908eafb1f6226ebe3a4c7dacd7cef80
SHA512 fb613384e073e613c94fe8d9b556d31fe7b761d16686ea00cdcc97378b5f35afebeaf7f7a1f9246ed4f09cc343d2dd7c2b835907686ea9877f6e33970fadc92e
SSDEEP 24576:LUIcwOR0kQhNCn4UrlGN1kCESGNFRhBPKHZAbsAI+QnVvBn0yJ:LURwOqkINCn4SlGNfErNFRHAZAbsAIx3
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

darkcomet guest16 evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

kooat.no-ip.biz:10000

Mutex

DC_MUTEX-GPUH7Z2

Attributes

gencode
PTFtVoMaQTlW
install
false
offline_keylogger
true
persistence
false

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat darkcomet

Modifies firewall policy service 3 TTPs 3 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	vbc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	vbc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	vbc.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\Control Panel\International\Geo\Nation	3d30faa7be5d1233282e64a6de7c8543_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
4068	CRYPT.EXE

Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2990742725-2267136959-192470804-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Key Name = "C:\\Users\\Admin\\AppData\\Local\\Temp\\file.exe"	CRYPT.EXE

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4068 set thread context of 4592	4068	CRYPT.EXE	87

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4592	vbc.exe
Token: SeSecurityPrivilege	4592	vbc.exe
Token: SeTakeOwnershipPrivilege	4592	vbc.exe
Token: SeLoadDriverPrivilege	4592	vbc.exe
Token: SeSystemProfilePrivilege	4592	vbc.exe
Token: SeSystemtimePrivilege	4592	vbc.exe
Token: SeProfSingleProcessPrivilege	4592	vbc.exe
Token: SeIncBasePriorityPrivilege	4592	vbc.exe
Token: SeCreatePagefilePrivilege	4592	vbc.exe
Token: SeBackupPrivilege	4592	vbc.exe
Token: SeRestorePrivilege	4592	vbc.exe
Token: SeShutdownPrivilege	4592	vbc.exe
Token: SeDebugPrivilege	4592	vbc.exe
Token: SeSystemEnvironmentPrivilege	4592	vbc.exe
Token: SeChangeNotifyPrivilege	4592	vbc.exe
Token: SeRemoteShutdownPrivilege	4592	vbc.exe
Token: SeUndockPrivilege	4592	vbc.exe
Token: SeManageVolumePrivilege	4592	vbc.exe
Token: SeImpersonatePrivilege	4592	vbc.exe
Token: SeCreateGlobalPrivilege	4592	vbc.exe
Token: 33	4592	vbc.exe
Token: 34	4592	vbc.exe
Token: 35	4592	vbc.exe
Token: 36	4592	vbc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4592	vbc.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1404 wrote to memory of 4068	1404	3d30faa7be5d1233282e64a6de7c8543_JaffaCakes118.exe	86
PID 1404 wrote to memory of 4068	1404	3d30faa7be5d1233282e64a6de7c8543_JaffaCakes118.exe	86
PID 1404 wrote to memory of 4068	1404	3d30faa7be5d1233282e64a6de7c8543_JaffaCakes118.exe	86
PID 4068 wrote to memory of 4592	4068	CRYPT.EXE	87
PID 4068 wrote to memory of 4592	4068	CRYPT.EXE	87
PID 4068 wrote to memory of 4592	4068	CRYPT.EXE	87
PID 4068 wrote to memory of 4592	4068	CRYPT.EXE	87
PID 4068 wrote to memory of 4592	4068	CRYPT.EXE	87
PID 4068 wrote to memory of 4592	4068	CRYPT.EXE	87
PID 4068 wrote to memory of 4592	4068	CRYPT.EXE	87
PID 4068 wrote to memory of 4592	4068	CRYPT.EXE	87
PID 4068 wrote to memory of 4592	4068	CRYPT.EXE	87
PID 4068 wrote to memory of 4592	4068	CRYPT.EXE	87
PID 4068 wrote to memory of 4592	4068	CRYPT.EXE	87
PID 4068 wrote to memory of 4592	4068	CRYPT.EXE	87
PID 4068 wrote to memory of 4592	4068	CRYPT.EXE	87
PID 4068 wrote to memory of 4592	4068	CRYPT.EXE	87

C:\Users\Admin\AppData\Local\Temp\3d30faa7be5d1233282e64a6de7c8543_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3d30faa7be5d1233282e64a6de7c8543_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1404
- C:\Users\Admin\AppData\Local\Temp\CRYPT.EXE
  "C:\Users\Admin\AppData\Local\Temp\CRYPT.EXE"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4068
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
    C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
    3⤵
    - Modifies firewall policy service
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:4592

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scripting

T1064

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Modify Registry

T1112

Scripting

T1064

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

CRYPT.EXE

Path C:\Users\Admin\AppData\Local\Temp\CRYPT.EXE
Size 1.2MB
SHA256 8b247457bdd93c47fd2d229ae078ce3e715c31ed634a07a8db4713dbe3b3be69
MD5 46a5748c258f343a5f5f52f4cbdce529
SHA1 cf35306473e0557b13b770667b2fba20d5a33897
SHA512 c4f63905a7525c18c68c6ef69c68a815676b819693a196d9c1efcf3ffe29b632405275bb40301441005bb818a433d4b89caef433ed2c5720fb0d9e3dfdb42b6f
SSDEEP 24576:UIcwOR0kQhNCn4UrlGN1kCESGNFRhBPKHZAbsAI+QnVvBn0yJ:URwOqkINCn4SlGNfErNFRHAZAbsAIxn3
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/4068-21-0x0000000075430000-0x00000000759E1000-memory.dmp

Download

memory/4068-12-0x0000000075432000-0x0000000075433000-memory.dmp

Download

memory/4068-14-0x0000000075430000-0x00000000759E1000-memory.dmp

Download

memory/4068-13-0x0000000075430000-0x00000000759E1000-memory.dmp

Download

memory/4592-25-0x0000000000400000-0x00000000004B2000-memory.dmp

Download

memory/4592-29-0x0000000000400000-0x00000000004B2000-memory.dmp

Download

memory/4592-20-0x0000000000400000-0x00000000004B2000-memory.dmp

Download

memory/4592-15-0x0000000000400000-0x00000000004B2000-memory.dmp

Download

memory/4592-24-0x0000000000400000-0x00000000004B2000-memory.dmp

Download

memory/4592-23-0x0000000000400000-0x00000000004B2000-memory.dmp

Download

memory/4592-22-0x0000000000400000-0x00000000004B2000-memory.dmp

Download

memory/4592-16-0x0000000000400000-0x00000000004B2000-memory.dmp

Download

memory/4592-26-0x0000000000400000-0x00000000004B2000-memory.dmp

Download

memory/4592-27-0x0000000000400000-0x00000000004B2000-memory.dmp

Download

memory/4592-28-0x0000000000400000-0x00000000004B2000-memory.dmp

Download

memory/4592-19-0x0000000000400000-0x00000000004B2000-memory.dmp

Download

memory/4592-30-0x0000000000400000-0x00000000004B2000-memory.dmp

Download

memory/4592-31-0x0000000000400000-0x00000000004B2000-memory.dmp

Download

memory/4592-32-0x0000000000400000-0x00000000004B2000-memory.dmp

Download

memory/4592-33-0x0000000000400000-0x00000000004B2000-memory.dmp

Download

memory/4592-34-0x0000000000400000-0x00000000004B2000-memory.dmp

Download

memory/4592-35-0x0000000000400000-0x00000000004B2000-memory.dmp

Download

memory/4592-36-0x0000000000400000-0x00000000004B2000-memory.dmp

Download

memory/4592-37-0x0000000000400000-0x00000000004B2000-memory.dmp

Download

memory/4592-38-0x0000000000400000-0x00000000004B2000-memory.dmp

Download

memory/4592-39-0x0000000000400000-0x00000000004B2000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads