darkcomet | d74a908c52c20ffecce292ffd6e0fa73c5b54870c7117c64848d6e841412f9b5

Analysis

max time kernel
150s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-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 3 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

Processes:

msdcsc.exe

description	ioc	Process
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	msdcsc.exe

Windows security bypass 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

Disables RegEdit via registry modification 1 IoCs

evasion

Processes:

msdcsc.exe

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	msdcsc.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

Processes:

6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid	Process
4668	msdcsc.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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.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

Processes:

6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exemsdcsc.exe

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

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

msdcsc.exe

pid	Process
4668	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exemsdcsc.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	488	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeSecurityPrivilege	488	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	488	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	488	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	488	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeSystemtimePrivilege	488	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	488	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	488	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	488	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeBackupPrivilege	488	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeRestorePrivilege	488	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeShutdownPrivilege	488	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeDebugPrivilege	488	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	488	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	488	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	488	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeUndockPrivilege	488	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeManageVolumePrivilege	488	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeImpersonatePrivilege	488	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	488	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: 33	488	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: 34	488	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: 35	488	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: 36	488	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	4668	msdcsc.exe
Token: SeSecurityPrivilege	4668	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4668	msdcsc.exe
Token: SeLoadDriverPrivilege	4668	msdcsc.exe
Token: SeSystemProfilePrivilege	4668	msdcsc.exe
Token: SeSystemtimePrivilege	4668	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4668	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4668	msdcsc.exe
Token: SeCreatePagefilePrivilege	4668	msdcsc.exe
Token: SeBackupPrivilege	4668	msdcsc.exe
Token: SeRestorePrivilege	4668	msdcsc.exe
Token: SeShutdownPrivilege	4668	msdcsc.exe
Token: SeDebugPrivilege	4668	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4668	msdcsc.exe
Token: SeChangeNotifyPrivilege	4668	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4668	msdcsc.exe
Token: SeUndockPrivilege	4668	msdcsc.exe
Token: SeManageVolumePrivilege	4668	msdcsc.exe
Token: SeImpersonatePrivilege	4668	msdcsc.exe
Token: SeCreateGlobalPrivilege	4668	msdcsc.exe
Token: 33	4668	msdcsc.exe
Token: 34	4668	msdcsc.exe
Token: 35	4668	msdcsc.exe
Token: 36	4668	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid	Process
4668	msdcsc.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exemsdcsc.exe

description	pid	Process	procid_target
PID 488 wrote to memory of 4668	488	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe	84
PID 488 wrote to memory of 4668	488	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe	84
PID 488 wrote to memory of 4668	488	6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe	84
PID 4668 wrote to memory of 2884	4668	msdcsc.exe	85
PID 4668 wrote to memory of 2884	4668	msdcsc.exe	85
PID 4668 wrote to memory of 2884	4668	msdcsc.exe	85
PID 4668 wrote to memory of 2428	4668	msdcsc.exe	86
PID 4668 wrote to memory of 2428	4668	msdcsc.exe	86

C:\Users\Admin\AppData\Local\Temp\6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\6bf69b1a5506b92cd31d73daa9a38af6_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:488
- 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
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4668
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    PID:2884
- - C:\Windows\explorer.exe
    "C:\Windows\explorer.exe"
    3⤵
    PID:2428

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

Query Registry

T1012

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

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
681KB

MD5
6bf69b1a5506b92cd31d73daa9a38af6

SHA1
f3a342a634f810a275b73c89ed8725fe1da41d7b

SHA256
d74a908c52c20ffecce292ffd6e0fa73c5b54870c7117c64848d6e841412f9b5

SHA512
c009ad1774abd789e0cd8d286860b61fd161a7993c81b0e8664c05ad7195cafd3f332e3076525313bfbf69df24e30f831566d8e5d54daec7260115483b83d437

Download Submit
memory/488-0-0x00000000007D0000-0x00000000007D1000-memory.dmp

Filesize
4KB

Download
memory/488-13-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/4668-19-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/4668-21-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/4668-16-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/4668-17-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/4668-18-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/4668-14-0x0000000002170000-0x0000000002171000-memory.dmp

Filesize
4KB

Download
memory/4668-20-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/4668-15-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/4668-22-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/4668-23-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/4668-24-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/4668-25-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/4668-26-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/4668-27-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/4668-28-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download