darkcomet | 757ba0d84ebc934a27d3a3f153269e3830274309d459d9ca05862b38e8045677

Analysis

max time kernel
150s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25-11-2024 13:13

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General

Target

9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Size

237KB
MD5

9bb658f3ade60f573cadeab503e8d985
SHA1

55b9236d7be91fe79efeabe22e7e4c8fc6732999
SHA256

757ba0d84ebc934a27d3a3f153269e3830274309d459d9ca05862b38e8045677
SHA512

3b43e0af7436b4288ad6fe9c2a9764d2418d95bb1346905aec72876f9cad4ac76cc8edd8e8f5dfe2db67578240dfd25a8356cfcf10fcc99be734696d152cec75
SSDEEP

6144:Py22ByAreNz+rtZOLqJ5Z7Ro94BDLbP2rr4hmI:Ay1NzKZeqpR0SnbP2PGB

Score

10^/10

darkcomet bomb discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Bomb

ameedo.no-ip.biz:1604

Mutex

DC_MUTEX-QP7H2Q0

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
JzBevPC10jts
install
true
offline_keylogger
true
persistence
true
reg_key
MicroUpdate

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:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	9bb658f3ade60f573cadeab503e8d985_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

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

Executes dropped EXE 1 IoCs

pid	Process
2384	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
2112	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
2112	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe

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-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	msdcsc.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	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2112	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeSecurityPrivilege	2112	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2112	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2112	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2112	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2112	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2112	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2112	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2112	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeBackupPrivilege	2112	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeRestorePrivilege	2112	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeShutdownPrivilege	2112	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeDebugPrivilege	2112	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2112	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2112	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2112	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeUndockPrivilege	2112	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2112	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2112	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2112	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: 33	2112	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: 34	2112	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: 35	2112	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2384	msdcsc.exe
Token: SeSecurityPrivilege	2384	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2384	msdcsc.exe
Token: SeLoadDriverPrivilege	2384	msdcsc.exe
Token: SeSystemProfilePrivilege	2384	msdcsc.exe
Token: SeSystemtimePrivilege	2384	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2384	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2384	msdcsc.exe
Token: SeCreatePagefilePrivilege	2384	msdcsc.exe
Token: SeBackupPrivilege	2384	msdcsc.exe
Token: SeRestorePrivilege	2384	msdcsc.exe
Token: SeShutdownPrivilege	2384	msdcsc.exe
Token: SeDebugPrivilege	2384	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2384	msdcsc.exe
Token: SeChangeNotifyPrivilege	2384	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2384	msdcsc.exe
Token: SeUndockPrivilege	2384	msdcsc.exe
Token: SeManageVolumePrivilege	2384	msdcsc.exe
Token: SeImpersonatePrivilege	2384	msdcsc.exe
Token: SeCreateGlobalPrivilege	2384	msdcsc.exe
Token: 33	2384	msdcsc.exe
Token: 34	2384	msdcsc.exe
Token: 35	2384	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2384	msdcsc.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 2384	2112	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe	30
PID 2112 wrote to memory of 2384	2112	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe	30
PID 2112 wrote to memory of 2384	2112	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe	30
PID 2112 wrote to memory of 2384	2112	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe	30

C:\Users\Admin\AppData\Local\Temp\9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\9bb658f3ade60f573cadeab503e8d985_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:2112
- C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe
  "C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe"
  2⤵
  - Modifies firewall policy service
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2384

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

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

C:\ProgramData\Microsoft\Windows\Start Menu\MSDCSC\msdcsc.exe

Filesize
237KB

MD5
9bb658f3ade60f573cadeab503e8d985

SHA1
55b9236d7be91fe79efeabe22e7e4c8fc6732999

SHA256
757ba0d84ebc934a27d3a3f153269e3830274309d459d9ca05862b38e8045677

SHA512
3b43e0af7436b4288ad6fe9c2a9764d2418d95bb1346905aec72876f9cad4ac76cc8edd8e8f5dfe2db67578240dfd25a8356cfcf10fcc99be734696d152cec75

Download Submit
memory/2112-2-0x00000000002B0000-0x00000000002B1000-memory.dmp

Filesize
4KB

Download
memory/2112-1-0x00000000002A0000-0x00000000002A2000-memory.dmp

Filesize
8KB

Download
memory/2112-14-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2112-0-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2384-20-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2384-22-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2384-17-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2384-18-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2384-19-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2384-15-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2384-21-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2384-16-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2384-23-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2384-24-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2384-25-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2384-26-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2384-27-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2384-28-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2384-29-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2384-30-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads