darkcomet | 02b091375fc3fca4256e6623631f72d23bf1de0f5257ed46d245660625bf500e

Analysis

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

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01-01-2025 13:17

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General

Target

JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe
Size

658KB
MD5

5695f7f13ff79b8abe4b4c31c9769c11
SHA1

ca3d7c38bdc360e8d11f297d89174afdeca8a07b
SHA256

02b091375fc3fca4256e6623631f72d23bf1de0f5257ed46d245660625bf500e
SHA512

b995bef8aa87a2f21a0a9eadbc73c43ab9f201ac20228564eb03a107b77daec8282ef5bef0ee832cf12be1ce5e472eeccea679618839033ec27154e69020576b
SSDEEP

12288:+9HFJ9rJxRX1uVVjoaWSoynxdO1FVBaOiRZTERfIhNkNCCLo9Ek5C/h8:KZ1xuVVjfFoynPaVBUR8f+kN10EB6

Score

10^/10

darkcomet hf discovery evasion persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

xmmoonbaby123.no-ip.org:1604

Mutex

DC_MUTEX-RAM62JL

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
kEj4w6JVBamh
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:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.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

Modifies security service 2 TTPs 1 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4"	msdcsc.exe

Windows security bypass 2 TTPs 2 IoCs

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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe

Deletes itself 1 IoCs

pid	Process
1712	notepad.exe

Executes dropped EXE 1 IoCs

pid	Process
1692	msdcsc.exe

Windows security modification 2 TTPs 2 IoCs

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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	msdcsc.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-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\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 4 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	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1692	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe
Token: SeSecurityPrivilege	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe
Token: SeTakeOwnershipPrivilege	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe
Token: SeLoadDriverPrivilege	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe
Token: SeSystemProfilePrivilege	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe
Token: SeSystemtimePrivilege	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe
Token: SeProfSingleProcessPrivilege	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe
Token: SeIncBasePriorityPrivilege	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe
Token: SeCreatePagefilePrivilege	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe
Token: SeBackupPrivilege	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe
Token: SeRestorePrivilege	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe
Token: SeShutdownPrivilege	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe
Token: SeDebugPrivilege	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe
Token: SeSystemEnvironmentPrivilege	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe
Token: SeChangeNotifyPrivilege	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe
Token: SeRemoteShutdownPrivilege	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe
Token: SeUndockPrivilege	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe
Token: SeManageVolumePrivilege	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe
Token: SeImpersonatePrivilege	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe
Token: SeCreateGlobalPrivilege	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe
Token: 33	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe
Token: 34	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe
Token: 35	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe
Token: 36	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe
Token: SeIncreaseQuotaPrivilege	1692	msdcsc.exe
Token: SeSecurityPrivilege	1692	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1692	msdcsc.exe
Token: SeLoadDriverPrivilege	1692	msdcsc.exe
Token: SeSystemProfilePrivilege	1692	msdcsc.exe
Token: SeSystemtimePrivilege	1692	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1692	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1692	msdcsc.exe
Token: SeCreatePagefilePrivilege	1692	msdcsc.exe
Token: SeBackupPrivilege	1692	msdcsc.exe
Token: SeRestorePrivilege	1692	msdcsc.exe
Token: SeShutdownPrivilege	1692	msdcsc.exe
Token: SeDebugPrivilege	1692	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1692	msdcsc.exe
Token: SeChangeNotifyPrivilege	1692	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1692	msdcsc.exe
Token: SeUndockPrivilege	1692	msdcsc.exe
Token: SeManageVolumePrivilege	1692	msdcsc.exe
Token: SeImpersonatePrivilege	1692	msdcsc.exe
Token: SeCreateGlobalPrivilege	1692	msdcsc.exe
Token: 33	1692	msdcsc.exe
Token: 34	1692	msdcsc.exe
Token: 35	1692	msdcsc.exe
Token: 36	1692	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1692	msdcsc.exe

Suspicious use of WriteProcessMemory 42 IoCs

description	pid	Process	procid_target
PID 4448 wrote to memory of 1712	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe	82
PID 4448 wrote to memory of 1712	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe	82
PID 4448 wrote to memory of 1712	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe	82
PID 4448 wrote to memory of 1712	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe	82
PID 4448 wrote to memory of 1712	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe	82
PID 4448 wrote to memory of 1712	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe	82
PID 4448 wrote to memory of 1712	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe	82
PID 4448 wrote to memory of 1712	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe	82
PID 4448 wrote to memory of 1712	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe	82
PID 4448 wrote to memory of 1712	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe	82
PID 4448 wrote to memory of 1712	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe	82
PID 4448 wrote to memory of 1712	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe	82
PID 4448 wrote to memory of 1712	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe	82
PID 4448 wrote to memory of 1712	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe	82
PID 4448 wrote to memory of 1712	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe	82
PID 4448 wrote to memory of 1712	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe	82
PID 4448 wrote to memory of 1712	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe	82
PID 4448 wrote to memory of 1692	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe	83
PID 4448 wrote to memory of 1692	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe	83
PID 4448 wrote to memory of 1692	4448	JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe	83
PID 1692 wrote to memory of 2816	1692	msdcsc.exe	84
PID 1692 wrote to memory of 2816	1692	msdcsc.exe	84
PID 1692 wrote to memory of 2816	1692	msdcsc.exe	84
PID 1692 wrote to memory of 2816	1692	msdcsc.exe	84
PID 1692 wrote to memory of 2816	1692	msdcsc.exe	84
PID 1692 wrote to memory of 2816	1692	msdcsc.exe	84
PID 1692 wrote to memory of 2816	1692	msdcsc.exe	84
PID 1692 wrote to memory of 2816	1692	msdcsc.exe	84
PID 1692 wrote to memory of 2816	1692	msdcsc.exe	84
PID 1692 wrote to memory of 2816	1692	msdcsc.exe	84
PID 1692 wrote to memory of 2816	1692	msdcsc.exe	84
PID 1692 wrote to memory of 2816	1692	msdcsc.exe	84
PID 1692 wrote to memory of 2816	1692	msdcsc.exe	84
PID 1692 wrote to memory of 2816	1692	msdcsc.exe	84
PID 1692 wrote to memory of 2816	1692	msdcsc.exe	84
PID 1692 wrote to memory of 2816	1692	msdcsc.exe	84
PID 1692 wrote to memory of 2816	1692	msdcsc.exe	84
PID 1692 wrote to memory of 2816	1692	msdcsc.exe	84
PID 1692 wrote to memory of 2816	1692	msdcsc.exe	84
PID 1692 wrote to memory of 2816	1692	msdcsc.exe	84
PID 1692 wrote to memory of 2816	1692	msdcsc.exe	84
PID 1692 wrote to memory of 2816	1692	msdcsc.exe	84

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5695f7f13ff79b8abe4b4c31c9769c11.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:4448
- C:\Windows\SysWOW64\notepad.exe
  notepad
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:1712
- C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
  "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
  2⤵
  - Modifies firewall policy service
  - Modifies security service
  - Windows security bypass
  - Executes dropped EXE
  - Windows security modification
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1692
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2816

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

Filesize
658KB

MD5
5695f7f13ff79b8abe4b4c31c9769c11

SHA1
ca3d7c38bdc360e8d11f297d89174afdeca8a07b

SHA256
02b091375fc3fca4256e6623631f72d23bf1de0f5257ed46d245660625bf500e

SHA512
b995bef8aa87a2f21a0a9eadbc73c43ab9f201ac20228564eb03a107b77daec8282ef5bef0ee832cf12be1ce5e472eeccea679618839033ec27154e69020576b

Download Submit
memory/1692-75-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1692-79-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1692-69-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1692-70-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1692-78-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1692-66-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1692-67-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1692-68-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1692-62-0x00000000022C0000-0x00000000022C1000-memory.dmp

Filesize
4KB

Download
memory/1692-77-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1692-72-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1692-71-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1692-73-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1692-74-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1692-76-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1712-3-0x0000000001350000-0x0000000001351000-memory.dmp

Filesize
4KB

Download
memory/2816-63-0x0000000000D90000-0x0000000000D91000-memory.dmp

Filesize
4KB

Download
memory/4448-0-0x0000000002270000-0x0000000002271000-memory.dmp

Filesize
4KB

Download
memory/4448-64-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads