darkcomet | 5f5b8534ff9c41325d7fc379152a22080285e9de5f369224db74c69809954d2c

Analysis

max time kernel
141s
max time network
140s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
01/03/2025, 18:35

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General

Target

JaffaCakes118_3acce3031f682ba195b00be299647862.exe
Size

423KB
MD5

3acce3031f682ba195b00be299647862
SHA1

39bc0e236546e988f7be772af48788a138f7f2f8
SHA256

5f5b8534ff9c41325d7fc379152a22080285e9de5f369224db74c69809954d2c
SHA512

65acdf8f3465189a677defcc57c91fca556cf86c5a05460bf1e6fffa5766d488aae1850713fd36ea4331c038fad477335b106ccfd44be07b60ea88481b25a5fc
SSDEEP

12288:b8rO0n6VAJ7FMjCc7haEz9NX68U4CftbG:bl0nOGOjCc4Ez9NX6JbG

Score

10^/10

darkcomet kurvichki defense_evasion discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

kurvichki

37.221.162.36:1604

Mutex

DC_MUTEX-DRZDKPB

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
Qt23HyB8TzSs
install
true
offline_keylogger
true
persistence
false
reg_key
MicroUpdate

rc4.plain

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"	JaffaCakes118_3acce3031f682ba195b00be299647862.exe

Modifies firewall policy service 3 TTPs 3 IoCs

defense_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	msdcsc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "0"	msdcsc.exe
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\DisableNotifications = "0"	msdcsc.exe

Windows security bypass 2 TTPs 1 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msdcsc.exe

Executes dropped EXE 1 IoCs

pid	Process
2500	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
2324	JaffaCakes118_3acce3031f682ba195b00be299647862.exe
2324	JaffaCakes118_3acce3031f682ba195b00be299647862.exe

Windows security modification 2 TTPs 1 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	msdcsc.exe

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-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	JaffaCakes118_3acce3031f682ba195b00be299647862.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 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	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_3acce3031f682ba195b00be299647862.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2324	JaffaCakes118_3acce3031f682ba195b00be299647862.exe
Token: SeSecurityPrivilege	2324	JaffaCakes118_3acce3031f682ba195b00be299647862.exe
Token: SeTakeOwnershipPrivilege	2324	JaffaCakes118_3acce3031f682ba195b00be299647862.exe
Token: SeLoadDriverPrivilege	2324	JaffaCakes118_3acce3031f682ba195b00be299647862.exe
Token: SeSystemProfilePrivilege	2324	JaffaCakes118_3acce3031f682ba195b00be299647862.exe
Token: SeSystemtimePrivilege	2324	JaffaCakes118_3acce3031f682ba195b00be299647862.exe
Token: SeProfSingleProcessPrivilege	2324	JaffaCakes118_3acce3031f682ba195b00be299647862.exe
Token: SeIncBasePriorityPrivilege	2324	JaffaCakes118_3acce3031f682ba195b00be299647862.exe
Token: SeCreatePagefilePrivilege	2324	JaffaCakes118_3acce3031f682ba195b00be299647862.exe
Token: SeBackupPrivilege	2324	JaffaCakes118_3acce3031f682ba195b00be299647862.exe
Token: SeRestorePrivilege	2324	JaffaCakes118_3acce3031f682ba195b00be299647862.exe
Token: SeShutdownPrivilege	2324	JaffaCakes118_3acce3031f682ba195b00be299647862.exe
Token: SeDebugPrivilege	2324	JaffaCakes118_3acce3031f682ba195b00be299647862.exe
Token: SeSystemEnvironmentPrivilege	2324	JaffaCakes118_3acce3031f682ba195b00be299647862.exe
Token: SeChangeNotifyPrivilege	2324	JaffaCakes118_3acce3031f682ba195b00be299647862.exe
Token: SeRemoteShutdownPrivilege	2324	JaffaCakes118_3acce3031f682ba195b00be299647862.exe
Token: SeUndockPrivilege	2324	JaffaCakes118_3acce3031f682ba195b00be299647862.exe
Token: SeManageVolumePrivilege	2324	JaffaCakes118_3acce3031f682ba195b00be299647862.exe
Token: SeImpersonatePrivilege	2324	JaffaCakes118_3acce3031f682ba195b00be299647862.exe
Token: SeCreateGlobalPrivilege	2324	JaffaCakes118_3acce3031f682ba195b00be299647862.exe
Token: 33	2324	JaffaCakes118_3acce3031f682ba195b00be299647862.exe
Token: 34	2324	JaffaCakes118_3acce3031f682ba195b00be299647862.exe
Token: 35	2324	JaffaCakes118_3acce3031f682ba195b00be299647862.exe
Token: SeIncreaseQuotaPrivilege	2500	msdcsc.exe
Token: SeSecurityPrivilege	2500	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2500	msdcsc.exe
Token: SeLoadDriverPrivilege	2500	msdcsc.exe
Token: SeSystemProfilePrivilege	2500	msdcsc.exe
Token: SeSystemtimePrivilege	2500	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2500	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2500	msdcsc.exe
Token: SeCreatePagefilePrivilege	2500	msdcsc.exe
Token: SeBackupPrivilege	2500	msdcsc.exe
Token: SeRestorePrivilege	2500	msdcsc.exe
Token: SeShutdownPrivilege	2500	msdcsc.exe
Token: SeDebugPrivilege	2500	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2500	msdcsc.exe
Token: SeChangeNotifyPrivilege	2500	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2500	msdcsc.exe
Token: SeUndockPrivilege	2500	msdcsc.exe
Token: SeManageVolumePrivilege	2500	msdcsc.exe
Token: SeImpersonatePrivilege	2500	msdcsc.exe
Token: SeCreateGlobalPrivilege	2500	msdcsc.exe
Token: 33	2500	msdcsc.exe
Token: 34	2500	msdcsc.exe
Token: 35	2500	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2500	msdcsc.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2324 wrote to memory of 2500	2324	JaffaCakes118_3acce3031f682ba195b00be299647862.exe	30
PID 2324 wrote to memory of 2500	2324	JaffaCakes118_3acce3031f682ba195b00be299647862.exe	30
PID 2324 wrote to memory of 2500	2324	JaffaCakes118_3acce3031f682ba195b00be299647862.exe	30
PID 2324 wrote to memory of 2500	2324	JaffaCakes118_3acce3031f682ba195b00be299647862.exe	30

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3acce3031f682ba195b00be299647862.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3acce3031f682ba195b00be299647862.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:2324
- C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
  "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
  2⤵
  - Modifies firewall policy service
  - Windows security bypass
  - Executes dropped EXE
  - Windows security modification
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2500

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

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

Winlogon Helper DLL

T1547.004

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

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

Filesize
423KB

MD5
3acce3031f682ba195b00be299647862

SHA1
39bc0e236546e988f7be772af48788a138f7f2f8

SHA256
5f5b8534ff9c41325d7fc379152a22080285e9de5f369224db74c69809954d2c

SHA512
65acdf8f3465189a677defcc57c91fca556cf86c5a05460bf1e6fffa5766d488aae1850713fd36ea4331c038fad477335b106ccfd44be07b60ea88481b25a5fc

Download Submit
memory/2324-3-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download
memory/2324-20-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download
memory/2324-0-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download
memory/2324-4-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download
memory/2324-5-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download
memory/2324-1-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download
memory/2324-2-0x0000000000404000-0x000000000040A000-memory.dmp

Filesize
24KB

Download
memory/2324-19-0x0000000000404000-0x000000000040A000-memory.dmp

Filesize
24KB

Download
memory/2500-18-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download
memory/2500-21-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download
memory/2500-17-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download
memory/2500-22-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download
memory/2500-25-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download
memory/2500-28-0x0000000000400000-0x00000000004B6000-memory.dmp

Filesize
728KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads