darkcomet | 359981728f790600cdb124c43633eca94740c41deba296b672c1be6daef0d478

Analysis

max time kernel
150s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
13-12-2024 07:11

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe
Size

316KB
MD5

ea81a37bc72d306aa5e19b4d71385dc4
SHA1

783e2f687548e7fcaa92c03ed4361c4f598cfb54
SHA256

359981728f790600cdb124c43633eca94740c41deba296b672c1be6daef0d478
SHA512

77539bea7d2303668831bcd45fc7208be1e1be4cc45c08c584a347e5bf0c2d3208a123d39d4410ffef8efe77415a9861bc7e79a791992bfb86e0eb3f4a783eea
SSDEEP

6144:iHjwI7Ro8vT91lV7bjFZaChLXMe65ytjsK5Ae5t+R3IIhIIW:2jwARb91lVTFRjaY1WIIhII

Score

10^/10

darkcomet discovery persistence rat trojan

Malware Config

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\\Favorites\\Windupdt\\winupd.exe"	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe

Checks BIOS information in registry 2 TTPs 1 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
4972	winupd.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winupd = "C:\\Users\\Admin\\Favorites\\Windupdt\\winupd.exe"	ea81a37bc72d306aa5e19b4d71385dc4_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 3 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	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winupd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ping.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4728	ping.exe

Checks processor information in registry 2 TTPs 5 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	winupd.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4728	ping.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4004	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe
Token: SeSecurityPrivilege	4004	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	4004	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	4004	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	4004	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe
Token: SeSystemtimePrivilege	4004	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	4004	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	4004	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	4004	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe
Token: SeBackupPrivilege	4004	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe
Token: SeRestorePrivilege	4004	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe
Token: SeShutdownPrivilege	4004	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe
Token: SeDebugPrivilege	4004	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	4004	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	4004	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	4004	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe
Token: SeUndockPrivilege	4004	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe
Token: SeManageVolumePrivilege	4004	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe
Token: SeImpersonatePrivilege	4004	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	4004	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe
Token: 33	4004	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe
Token: 34	4004	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe
Token: 35	4004	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe
Token: 36	4004	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	4972	winupd.exe
Token: SeSecurityPrivilege	4972	winupd.exe
Token: SeTakeOwnershipPrivilege	4972	winupd.exe
Token: SeLoadDriverPrivilege	4972	winupd.exe
Token: SeSystemProfilePrivilege	4972	winupd.exe
Token: SeSystemtimePrivilege	4972	winupd.exe
Token: SeProfSingleProcessPrivilege	4972	winupd.exe
Token: SeIncBasePriorityPrivilege	4972	winupd.exe
Token: SeCreatePagefilePrivilege	4972	winupd.exe
Token: SeBackupPrivilege	4972	winupd.exe
Token: SeRestorePrivilege	4972	winupd.exe
Token: SeShutdownPrivilege	4972	winupd.exe
Token: SeDebugPrivilege	4972	winupd.exe
Token: SeSystemEnvironmentPrivilege	4972	winupd.exe
Token: SeChangeNotifyPrivilege	4972	winupd.exe
Token: SeRemoteShutdownPrivilege	4972	winupd.exe
Token: SeUndockPrivilege	4972	winupd.exe
Token: SeManageVolumePrivilege	4972	winupd.exe
Token: SeImpersonatePrivilege	4972	winupd.exe
Token: SeCreateGlobalPrivilege	4972	winupd.exe
Token: 33	4972	winupd.exe
Token: 34	4972	winupd.exe
Token: 35	4972	winupd.exe
Token: 36	4972	winupd.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4004 wrote to memory of 3604	4004	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe	86
PID 4004 wrote to memory of 3604	4004	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe	86
PID 4004 wrote to memory of 3604	4004	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe	86
PID 4004 wrote to memory of 4972	4004	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe	90
PID 4004 wrote to memory of 4972	4004	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe	90
PID 4004 wrote to memory of 4972	4004	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe	90
PID 4004 wrote to memory of 4728	4004	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe	91
PID 4004 wrote to memory of 4728	4004	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe	91
PID 4004 wrote to memory of 4728	4004	ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe	91
PID 4972 wrote to memory of 908	4972	winupd.exe	93
PID 4972 wrote to memory of 908	4972	winupd.exe	93
PID 4972 wrote to memory of 908	4972	winupd.exe	93

C:\Users\Admin\AppData\Local\Temp\ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe"
1⤵
- Modifies WinLogon for persistence
- Checks BIOS information in registry
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4004
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\SysWOW64\explorer.exe"
  2⤵
  PID:3604
- C:\Users\Admin\Favorites\Windupdt\winupd.exe
  "C:\Users\Admin\Favorites\Windupdt\winupd.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4972
- - C:\Windows\SysWOW64\explorer.exe
    "C:\Windows\SysWOW64\explorer.exe"
    3⤵
    PID:908
- C:\Windows\SysWOW64\ping.exe
  ping 127.0.0.1 -n 5 > NUL del "C:\Users\Admin\AppData\Local\Temp\ea81a37bc72d306aa5e19b4d71385dc4_JaffaCakes118.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Runs ping.exe
  PID:4728

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\Favorites\Windupdt\winupd.exe

Filesize
316KB

MD5
ea81a37bc72d306aa5e19b4d71385dc4

SHA1
783e2f687548e7fcaa92c03ed4361c4f598cfb54

SHA256
359981728f790600cdb124c43633eca94740c41deba296b672c1be6daef0d478

SHA512
77539bea7d2303668831bcd45fc7208be1e1be4cc45c08c584a347e5bf0c2d3208a123d39d4410ffef8efe77415a9861bc7e79a791992bfb86e0eb3f4a783eea

Download Submit
memory/4004-0-0x0000000000400000-0x00000000004E3000-memory.dmp

Filesize
908KB

Download
memory/4004-1-0x00000000022C0000-0x00000000022C1000-memory.dmp

Filesize
4KB

Download
memory/4004-8-0x0000000000400000-0x00000000004E3000-memory.dmp

Filesize
908KB

Download
memory/4004-10-0x00000000022C0000-0x00000000022C1000-memory.dmp

Filesize
4KB

Download
memory/4004-18-0x0000000000400000-0x00000000004E3000-memory.dmp

Filesize
908KB

Download
memory/4972-23-0x0000000000400000-0x00000000004E3000-memory.dmp

Filesize
908KB

Download
memory/4972-26-0x0000000000400000-0x00000000004E3000-memory.dmp

Filesize
908KB

Download
memory/4972-21-0x0000000000400000-0x00000000004E3000-memory.dmp

Filesize
908KB

Download
memory/4972-22-0x0000000000400000-0x00000000004E3000-memory.dmp

Filesize
908KB

Download
memory/4972-19-0x00000000006F0000-0x00000000006F1000-memory.dmp

Filesize
4KB

Download
memory/4972-24-0x0000000000400000-0x00000000004E3000-memory.dmp

Filesize
908KB

Download
memory/4972-25-0x0000000000400000-0x00000000004E3000-memory.dmp

Filesize
908KB

Download
memory/4972-20-0x0000000000400000-0x00000000004E3000-memory.dmp

Filesize
908KB

Download
memory/4972-27-0x0000000000400000-0x00000000004E3000-memory.dmp

Filesize
908KB

Download
memory/4972-28-0x0000000000400000-0x00000000004E3000-memory.dmp

Filesize
908KB

Download
memory/4972-29-0x0000000000400000-0x00000000004E3000-memory.dmp

Filesize
908KB

Download
memory/4972-30-0x0000000000400000-0x00000000004E3000-memory.dmp

Filesize
908KB

Download
memory/4972-31-0x0000000000400000-0x00000000004E3000-memory.dmp

Filesize
908KB

Download
memory/4972-32-0x0000000000400000-0x00000000004E3000-memory.dmp

Filesize
908KB

Download
memory/4972-33-0x0000000000400000-0x00000000004E3000-memory.dmp

Filesize
908KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads