darkcomet | d74a908c52c20ffecce292ffd6e0fa73c5b54870c7117c64848d6e841412f9b5

Analysis

max time kernel
150s
max time network
124s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22-10-2024 21:27

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General

Target

6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Size

681KB
MD5

6bf69b1a5506b92cd31d73daa9a38af6
SHA1

f3a342a634f810a275b73c89ed8725fe1da41d7b
SHA256

d74a908c52c20ffecce292ffd6e0fa73c5b54870c7117c64848d6e841412f9b5
SHA512

c009ad1774abd789e0cd8d286860b61fd161a7993c81b0e8664c05ad7195cafd3f332e3076525313bfbf69df24e30f831566d8e5d54daec7260115483b83d437
SSDEEP

12288:Xk0QVlhmPojAPTMEsUTg0oChO/Q2JbsbjPbN5qhRTtYe3f+Iw86k/9/+FlU:00QRWoJEfg0oChGdJQbjPbNW5tYeP+GZ

Score

10^/10

darkcomet vitimas uol discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

vitimas uol

testesdeprogramas.no-ip.org:1604

Mutex

DC_MUTEX-CNS4H3S

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
o9UWf4f1zzG7
install
true
offline_keylogger
true
persistence
false
reg_key
MicroUpdate

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

Processes:

6bf69b1a5506b92cd31d73daa9a38af6_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\\Documents\\MSDCSC\\msdcsc.exe"	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe

Modifies firewall policy service 3 TTPs 6 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

Processes:

iexplore.exemsdcsc.exe

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

Windows security bypass 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Processes:

msdcsc.exeiexplore.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\AntiVirusDisableNotify = "1"	iexplore.exe

Disables RegEdit via registry modification 2 IoCs

evasion

Processes:

msdcsc.exeiexplore.exe

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	msdcsc.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	iexplore.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid	Process
1576	msdcsc.exe

Loads dropped DLL 2 IoCs

Processes:

6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe

pid	Process
1996	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
1996	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe

Windows security modification 2 TTPs 1 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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

msdcsc.exe

description	pid	Process	procid_target
PID 1576 set thread context of 2320	1576	msdcsc.exe	32

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

Processes:

msdcsc.exeiexplore.exe6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iexplore.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

iexplore.exe

pid	Process
2320	iexplore.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exemsdcsc.exeiexplore.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1996	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeSecurityPrivilege	1996	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	1996	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	1996	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	1996	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeSystemtimePrivilege	1996	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	1996	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	1996	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	1996	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeBackupPrivilege	1996	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeRestorePrivilege	1996	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeShutdownPrivilege	1996	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeDebugPrivilege	1996	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	1996	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	1996	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	1996	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeUndockPrivilege	1996	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeManageVolumePrivilege	1996	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeImpersonatePrivilege	1996	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	1996	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: 33	1996	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: 34	1996	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: 35	1996	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	1576	msdcsc.exe
Token: SeSecurityPrivilege	1576	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1576	msdcsc.exe
Token: SeLoadDriverPrivilege	1576	msdcsc.exe
Token: SeSystemProfilePrivilege	1576	msdcsc.exe
Token: SeSystemtimePrivilege	1576	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1576	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1576	msdcsc.exe
Token: SeCreatePagefilePrivilege	1576	msdcsc.exe
Token: SeBackupPrivilege	1576	msdcsc.exe
Token: SeRestorePrivilege	1576	msdcsc.exe
Token: SeShutdownPrivilege	1576	msdcsc.exe
Token: SeDebugPrivilege	1576	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1576	msdcsc.exe
Token: SeChangeNotifyPrivilege	1576	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1576	msdcsc.exe
Token: SeUndockPrivilege	1576	msdcsc.exe
Token: SeManageVolumePrivilege	1576	msdcsc.exe
Token: SeImpersonatePrivilege	1576	msdcsc.exe
Token: SeCreateGlobalPrivilege	1576	msdcsc.exe
Token: 33	1576	msdcsc.exe
Token: 34	1576	msdcsc.exe
Token: 35	1576	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	2320	iexplore.exe
Token: SeSecurityPrivilege	2320	iexplore.exe
Token: SeTakeOwnershipPrivilege	2320	iexplore.exe
Token: SeLoadDriverPrivilege	2320	iexplore.exe
Token: SeSystemProfilePrivilege	2320	iexplore.exe
Token: SeSystemtimePrivilege	2320	iexplore.exe
Token: SeProfSingleProcessPrivilege	2320	iexplore.exe
Token: SeIncBasePriorityPrivilege	2320	iexplore.exe
Token: SeCreatePagefilePrivilege	2320	iexplore.exe
Token: SeBackupPrivilege	2320	iexplore.exe
Token: SeRestorePrivilege	2320	iexplore.exe
Token: SeShutdownPrivilege	2320	iexplore.exe
Token: SeDebugPrivilege	2320	iexplore.exe
Token: SeSystemEnvironmentPrivilege	2320	iexplore.exe
Token: SeChangeNotifyPrivilege	2320	iexplore.exe
Token: SeRemoteShutdownPrivilege	2320	iexplore.exe
Token: SeUndockPrivilege	2320	iexplore.exe
Token: SeManageVolumePrivilege	2320	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

iexplore.exe

pid	Process
2320	iexplore.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exemsdcsc.exe

description	pid	Process	procid_target
PID 1996 wrote to memory of 1576	1996	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe	31
PID 1996 wrote to memory of 1576	1996	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe	31
PID 1996 wrote to memory of 1576	1996	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe	31
PID 1996 wrote to memory of 1576	1996	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe	31
PID 1576 wrote to memory of 2320	1576	msdcsc.exe	32
PID 1576 wrote to memory of 2320	1576	msdcsc.exe	32
PID 1576 wrote to memory of 2320	1576	msdcsc.exe	32
PID 1576 wrote to memory of 2320	1576	msdcsc.exe	32
PID 1576 wrote to memory of 2320	1576	msdcsc.exe	32
PID 1576 wrote to memory of 2320	1576	msdcsc.exe	32

C:\Users\Admin\AppData\Local\Temp\6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\6bf69b1a5506b92cd31d73daa9a38af6_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:1996
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Modifies firewall policy service
  - Windows security bypass
  - Disables RegEdit via registry modification
  - Executes dropped EXE
  - Windows security modification
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1576
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    - Modifies firewall policy service
    - Windows security bypass
    - Disables RegEdit via registry modification
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2320

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\Documents\MSDCSC\msdcsc.exe

Filesize
681KB

MD5
6bf69b1a5506b92cd31d73daa9a38af6

SHA1
f3a342a634f810a275b73c89ed8725fe1da41d7b

SHA256
d74a908c52c20ffecce292ffd6e0fa73c5b54870c7117c64848d6e841412f9b5

SHA512
c009ad1774abd789e0cd8d286860b61fd161a7993c81b0e8664c05ad7195cafd3f332e3076525313bfbf69df24e30f831566d8e5d54daec7260115483b83d437

Download Submit
memory/1576-12-0x00000000002A0000-0x00000000002A1000-memory.dmp

Filesize
4KB

Download
memory/1576-15-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/1996-0-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/1996-11-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2320-14-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download