darkcomet | 50fb26660e3e27515aeabfa0faa1a32a407e704700960cac1c8cb90362396a87

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
23/02/2025, 06:16

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General

Target

JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
Size

1.3MB
MD5

1efdb83714007108190f2944d1daf62a
SHA1

64b18fd6f491158e4376192c4a8f49a48afc6cb7
SHA256

50fb26660e3e27515aeabfa0faa1a32a407e704700960cac1c8cb90362396a87
SHA512

70dcb2fff90d5a746c9aa1eaa5a03a8c5fad3dcdaf0226a5cb83a4160191dbcdb445541df3291cff9de1899a24f6ad023eb421bc833c709cdd9c3415b94c2eb1
SSDEEP

24576:Ob90u0wwuFQZfpcYRzCL8VlJuxHQ6YqJoJ4Sa6N1vvKht4Wji3GaHr:xwwiOBzJmYqJu4SaOa6GaHr

Score

10^/10

darkcomet guest16 defense_evasion discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

baxbax2.myftp.org:1604

Mutex

DC_MUTEX-12KF4QC

Attributes

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

rc4.plain

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:\\Windows\\MSDCSC\\msdcsc.exe"	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe

Modifies firewall policy service 3 TTPs 3 IoCs

defense_evasion

Modify Registry

T1112

Windows Service

T1543.003

Disable or Modify System Firewall

T1562.004

description	ioc	Process
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
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\EnableFirewall = "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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2593460650-190333679-3676257533-1000\Control Panel\International\Geo\Nation	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe

Executes dropped EXE 2 IoCs

pid	Process
2268	msdcsc.exe
1040	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-1-5-21-2593460650-190333679-3676257533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\MSDCSC\\msdcsc.exe"	msdcsc.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2593460650-190333679-3676257533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Windows\\MSDCSC\\msdcsc.exe"	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 2264 set thread context of 1356	2264	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe	86
PID 2268 set thread context of 1040	2268	msdcsc.exe	89

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\MSDCSC\	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
File created	C:\Windows\MSDCSC\msdcsc.exe	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
File opened for modification	C:\Windows\MSDCSC\msdcsc.exe	JaffaCakes118_1efdb83714007108190f2944d1daf62a.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	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.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_1efdb83714007108190f2944d1daf62a.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1040	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1356	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
Token: SeSecurityPrivilege	1356	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
Token: SeTakeOwnershipPrivilege	1356	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
Token: SeLoadDriverPrivilege	1356	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
Token: SeSystemProfilePrivilege	1356	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
Token: SeSystemtimePrivilege	1356	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
Token: SeProfSingleProcessPrivilege	1356	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
Token: SeIncBasePriorityPrivilege	1356	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
Token: SeCreatePagefilePrivilege	1356	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
Token: SeBackupPrivilege	1356	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
Token: SeRestorePrivilege	1356	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
Token: SeShutdownPrivilege	1356	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
Token: SeDebugPrivilege	1356	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
Token: SeSystemEnvironmentPrivilege	1356	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
Token: SeChangeNotifyPrivilege	1356	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
Token: SeRemoteShutdownPrivilege	1356	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
Token: SeUndockPrivilege	1356	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
Token: SeManageVolumePrivilege	1356	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
Token: SeImpersonatePrivilege	1356	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
Token: SeCreateGlobalPrivilege	1356	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
Token: 33	1356	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
Token: 34	1356	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
Token: 35	1356	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
Token: 36	1356	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
Token: SeIncreaseQuotaPrivilege	1040	msdcsc.exe
Token: SeSecurityPrivilege	1040	msdcsc.exe
Token: SeTakeOwnershipPrivilege	1040	msdcsc.exe
Token: SeLoadDriverPrivilege	1040	msdcsc.exe
Token: SeSystemProfilePrivilege	1040	msdcsc.exe
Token: SeSystemtimePrivilege	1040	msdcsc.exe
Token: SeProfSingleProcessPrivilege	1040	msdcsc.exe
Token: SeIncBasePriorityPrivilege	1040	msdcsc.exe
Token: SeCreatePagefilePrivilege	1040	msdcsc.exe
Token: SeBackupPrivilege	1040	msdcsc.exe
Token: SeRestorePrivilege	1040	msdcsc.exe
Token: SeShutdownPrivilege	1040	msdcsc.exe
Token: SeDebugPrivilege	1040	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	1040	msdcsc.exe
Token: SeChangeNotifyPrivilege	1040	msdcsc.exe
Token: SeRemoteShutdownPrivilege	1040	msdcsc.exe
Token: SeUndockPrivilege	1040	msdcsc.exe
Token: SeManageVolumePrivilege	1040	msdcsc.exe
Token: SeImpersonatePrivilege	1040	msdcsc.exe
Token: SeCreateGlobalPrivilege	1040	msdcsc.exe
Token: 33	1040	msdcsc.exe
Token: 34	1040	msdcsc.exe
Token: 35	1040	msdcsc.exe
Token: 36	1040	msdcsc.exe

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
2264	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
2264	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
2268	msdcsc.exe
2268	msdcsc.exe
1040	msdcsc.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 2264 wrote to memory of 1356	2264	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe	86
PID 2264 wrote to memory of 1356	2264	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe	86
PID 2264 wrote to memory of 1356	2264	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe	86
PID 2264 wrote to memory of 1356	2264	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe	86
PID 2264 wrote to memory of 1356	2264	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe	86
PID 2264 wrote to memory of 1356	2264	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe	86
PID 2264 wrote to memory of 1356	2264	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe	86
PID 2264 wrote to memory of 1356	2264	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe	86
PID 2264 wrote to memory of 1356	2264	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe	86
PID 2264 wrote to memory of 1356	2264	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe	86
PID 2264 wrote to memory of 1356	2264	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe	86
PID 2264 wrote to memory of 1356	2264	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe	86
PID 2264 wrote to memory of 1356	2264	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe	86
PID 2264 wrote to memory of 1356	2264	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe	86
PID 1356 wrote to memory of 2268	1356	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe	88
PID 1356 wrote to memory of 2268	1356	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe	88
PID 1356 wrote to memory of 2268	1356	JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe	88
PID 2268 wrote to memory of 1040	2268	msdcsc.exe	89
PID 2268 wrote to memory of 1040	2268	msdcsc.exe	89
PID 2268 wrote to memory of 1040	2268	msdcsc.exe	89
PID 2268 wrote to memory of 1040	2268	msdcsc.exe	89
PID 2268 wrote to memory of 1040	2268	msdcsc.exe	89
PID 2268 wrote to memory of 1040	2268	msdcsc.exe	89
PID 2268 wrote to memory of 1040	2268	msdcsc.exe	89
PID 2268 wrote to memory of 1040	2268	msdcsc.exe	89
PID 2268 wrote to memory of 1040	2268	msdcsc.exe	89
PID 2268 wrote to memory of 1040	2268	msdcsc.exe	89
PID 2268 wrote to memory of 1040	2268	msdcsc.exe	89
PID 2268 wrote to memory of 1040	2268	msdcsc.exe	89
PID 2268 wrote to memory of 1040	2268	msdcsc.exe	89
PID 2268 wrote to memory of 1040	2268	msdcsc.exe	89

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2264
- C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
  C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_1efdb83714007108190f2944d1daf62a.exe
  2⤵
  - Modifies WinLogon for persistence
  - Checks computer location settings
  - Adds Run key to start application
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1356
- - C:\Windows\MSDCSC\msdcsc.exe
    "C:\Windows\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2268
  - - C:\Windows\MSDCSC\msdcsc.exe
      C:\Windows\MSDCSC\msdcsc.exe
      4⤵
      Modifies firewall policy service
      Executes dropped EXE
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:1040

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:\Windows\MSDCSC\msdcsc.exe

Filesize
1.3MB

MD5
1efdb83714007108190f2944d1daf62a

SHA1
64b18fd6f491158e4376192c4a8f49a48afc6cb7

SHA256
50fb26660e3e27515aeabfa0faa1a32a407e704700960cac1c8cb90362396a87

SHA512
70dcb2fff90d5a746c9aa1eaa5a03a8c5fad3dcdaf0226a5cb83a4160191dbcdb445541df3291cff9de1899a24f6ad023eb421bc833c709cdd9c3415b94c2eb1

Download Submit
\??\c:\users\admin\appdata\local\temp\2D4DB6F0

Filesize
14B

MD5
59bf9e81e1dd8fb850249a3191dc139f

SHA1
a6d7909f6f6734c7de32a52551a2f6c78a299cc8

SHA256
27e89e00a44ec3ccd3ec8d2ef197b419ad8a99ebef653adbbd3f721b504ea8a6

SHA512
2c6698e6afa768659d3d0f63c3c5d2f4307bef8ce515363bd4aaee55aeeaeaf679b6b55d99b134e35235d89815a2849bacdd7e7a6cfdb5558291d123f71da7dd

Download Submit
memory/1040-97-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1040-93-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1040-98-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1040-87-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1040-96-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1040-105-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1040-95-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1040-104-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1040-103-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1040-102-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1040-101-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1040-100-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1040-85-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1040-88-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1040-94-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1040-86-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1040-99-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1040-92-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1356-89-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1356-6-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1356-12-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1356-11-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1356-8-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1356-7-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2264-0-0x0000000000400000-0x000000000075D000-memory.dmp

Filesize
3.4MB

Download
memory/2264-2-0x0000000000400000-0x000000000075D000-memory.dmp

Filesize
3.4MB

Download
memory/2264-3-0x0000000000400000-0x000000000075D000-memory.dmp

Filesize
3.4MB

Download
memory/2264-10-0x0000000000400000-0x000000000075D000-memory.dmp

Filesize
3.4MB

Download
memory/2268-84-0x0000000000400000-0x000000000075D000-memory.dmp

Filesize
3.4MB

Download
memory/2268-77-0x0000000000400000-0x000000000075D000-memory.dmp

Filesize
3.4MB

Download
memory/2268-76-0x0000000000400000-0x000000000075D000-memory.dmp

Filesize
3.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads