darkcomet | 757ba0d84ebc934a27d3a3f153269e3830274309d459d9ca05862b38e8045677

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
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

Processes:

9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe

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

Processes:

msdcsc.exe

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

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:

9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

Processes:

msdcsc.exe

pid	Process
4180	msdcsc.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exemsdcsc.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\ProgramData\\Microsoft\\Windows\\Start Menu\\MSDCSC\\msdcsc.exe"	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\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

Processes:

9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exemsdcsc.exe

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

Modifies registry class 1 IoCs

Processes:

9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

Processes:

9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exemsdcsc.exe

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2704	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeSecurityPrivilege	2704	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	2704	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	2704	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	2704	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeSystemtimePrivilege	2704	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	2704	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	2704	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	2704	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeBackupPrivilege	2704	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeRestorePrivilege	2704	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeShutdownPrivilege	2704	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeDebugPrivilege	2704	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	2704	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	2704	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	2704	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeUndockPrivilege	2704	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeManageVolumePrivilege	2704	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeImpersonatePrivilege	2704	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	2704	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: 33	2704	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: 34	2704	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: 35	2704	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: 36	2704	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	4180	msdcsc.exe
Token: SeSecurityPrivilege	4180	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4180	msdcsc.exe
Token: SeLoadDriverPrivilege	4180	msdcsc.exe
Token: SeSystemProfilePrivilege	4180	msdcsc.exe
Token: SeSystemtimePrivilege	4180	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4180	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4180	msdcsc.exe
Token: SeCreatePagefilePrivilege	4180	msdcsc.exe
Token: SeBackupPrivilege	4180	msdcsc.exe
Token: SeRestorePrivilege	4180	msdcsc.exe
Token: SeShutdownPrivilege	4180	msdcsc.exe
Token: SeDebugPrivilege	4180	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4180	msdcsc.exe
Token: SeChangeNotifyPrivilege	4180	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4180	msdcsc.exe
Token: SeUndockPrivilege	4180	msdcsc.exe
Token: SeManageVolumePrivilege	4180	msdcsc.exe
Token: SeImpersonatePrivilege	4180	msdcsc.exe
Token: SeCreateGlobalPrivilege	4180	msdcsc.exe
Token: 33	4180	msdcsc.exe
Token: 34	4180	msdcsc.exe
Token: 35	4180	msdcsc.exe
Token: 36	4180	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

msdcsc.exe

pid	Process
4180	msdcsc.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe

description	pid	Process	procid_target
PID 2704 wrote to memory of 4180	2704	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe	85
PID 2704 wrote to memory of 4180	2704	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe	85
PID 2704 wrote to memory of 4180	2704	9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe	85

C:\Users\Admin\AppData\Local\Temp\9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\9bb658f3ade60f573cadeab503e8d985_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2704
- 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:4180

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

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

Filesize
237KB

MD5
9bb658f3ade60f573cadeab503e8d985

SHA1
55b9236d7be91fe79efeabe22e7e4c8fc6732999

SHA256
757ba0d84ebc934a27d3a3f153269e3830274309d459d9ca05862b38e8045677

SHA512
3b43e0af7436b4288ad6fe9c2a9764d2418d95bb1346905aec72876f9cad4ac76cc8edd8e8f5dfe2db67578240dfd25a8356cfcf10fcc99be734696d152cec75

Download Submit
memory/2704-64-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2704-1-0x0000000000680000-0x0000000000682000-memory.dmp

Filesize
8KB

Download
memory/2704-2-0x0000000002280000-0x0000000002281000-memory.dmp

Filesize
4KB

Download
memory/2704-0-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4180-72-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4180-74-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4180-67-0x0000000001FA0000-0x0000000001FA2000-memory.dmp

Filesize
8KB

Download
memory/4180-69-0x0000000002090000-0x0000000002091000-memory.dmp

Filesize
4KB

Download
memory/4180-68-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4180-70-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4180-71-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4180-65-0x0000000001FA0000-0x0000000001FA2000-memory.dmp

Filesize
8KB

Download
memory/4180-73-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4180-66-0x0000000002090000-0x0000000002091000-memory.dmp

Filesize
4KB

Download
memory/4180-75-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4180-76-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4180-77-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4180-78-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4180-79-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4180-80-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4180-81-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4180-82-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/4180-83-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download