darkcomet | eeccab59578ff3ee1e4e88da4edcb5765ef4380b8ca40ca8594b15e82cc7bcb2

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
04-11-2024 04:42

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General

Target

8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe
Size

233KB
MD5

8f36707a884175fc489962aaf56e2a5f
SHA1

74a2094e7beffb90408a863e9b55223698b932f8
SHA256

eeccab59578ff3ee1e4e88da4edcb5765ef4380b8ca40ca8594b15e82cc7bcb2
SHA512

eb47fb50ceea3717122f0fb0a11fd047ad5d315158b250442debcb0648357b079a43e484233666241c56116ad1f26b476d21935c49b2e2e8bcaa606181ec899e
SSDEEP

6144:G4CFfifD2gVKVTQQ249HZ52KTh9XKOCgLJacj5/AZtRs2a:GXgr8VMQDT52WXKq9fj5/AZjw

Score

10^/10

darkcomet discovery persistence rat trojan upx

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\\AppData\\Roaming\\Internet\\wiresvc.exe"	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe

Checks BIOS information in registry 2 TTPs 2 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	wiresvc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	8f36707a884175fc489962aaf56e2a5f_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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
732	wiresvc.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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\wiresvc = "C:\\Users\\Admin\\AppData\\Roaming\\Internet\\wiresvc.exe"	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe

UPX packed file 18 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4952-0-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/files/0x0007000000023c89-6.dat	upx
behavioral2/memory/4952-35-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/732-38-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/732-39-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/732-40-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/732-41-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/732-42-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/732-43-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/732-44-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/732-45-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/732-46-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/732-47-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/732-48-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/732-49-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/732-50-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/732-51-0x0000000000400000-0x00000000004B5000-memory.dmp	upx
behavioral2/memory/732-52-0x0000000000400000-0x00000000004B5000-memory.dmp	upx

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	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wiresvc.exe

Checks processor information in registry 2 TTPs 8 IoCs

Processor 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\CentralProcessor\0\Identifier	wiresvc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	wiresvc.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	wiresvc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	wiresvc.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	wiresvc.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
732	wiresvc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4952	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe
Token: SeSecurityPrivilege	4952	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe
Token: SeTakeOwnershipPrivilege	4952	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe
Token: SeLoadDriverPrivilege	4952	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe
Token: SeSystemProfilePrivilege	4952	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe
Token: SeSystemtimePrivilege	4952	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe
Token: SeProfSingleProcessPrivilege	4952	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe
Token: SeIncBasePriorityPrivilege	4952	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe
Token: SeCreatePagefilePrivilege	4952	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe
Token: SeBackupPrivilege	4952	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe
Token: SeRestorePrivilege	4952	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe
Token: SeShutdownPrivilege	4952	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe
Token: SeDebugPrivilege	4952	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe
Token: SeSystemEnvironmentPrivilege	4952	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe
Token: SeChangeNotifyPrivilege	4952	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe
Token: SeRemoteShutdownPrivilege	4952	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe
Token: SeUndockPrivilege	4952	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe
Token: SeManageVolumePrivilege	4952	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe
Token: SeImpersonatePrivilege	4952	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe
Token: SeCreateGlobalPrivilege	4952	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe
Token: 33	4952	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe
Token: 34	4952	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe
Token: 35	4952	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe
Token: 36	4952	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	732	wiresvc.exe
Token: SeSecurityPrivilege	732	wiresvc.exe
Token: SeTakeOwnershipPrivilege	732	wiresvc.exe
Token: SeLoadDriverPrivilege	732	wiresvc.exe
Token: SeSystemProfilePrivilege	732	wiresvc.exe
Token: SeSystemtimePrivilege	732	wiresvc.exe
Token: SeProfSingleProcessPrivilege	732	wiresvc.exe
Token: SeIncBasePriorityPrivilege	732	wiresvc.exe
Token: SeCreatePagefilePrivilege	732	wiresvc.exe
Token: SeBackupPrivilege	732	wiresvc.exe
Token: SeRestorePrivilege	732	wiresvc.exe
Token: SeShutdownPrivilege	732	wiresvc.exe
Token: SeDebugPrivilege	732	wiresvc.exe
Token: SeSystemEnvironmentPrivilege	732	wiresvc.exe
Token: SeChangeNotifyPrivilege	732	wiresvc.exe
Token: SeRemoteShutdownPrivilege	732	wiresvc.exe
Token: SeUndockPrivilege	732	wiresvc.exe
Token: SeManageVolumePrivilege	732	wiresvc.exe
Token: SeImpersonatePrivilege	732	wiresvc.exe
Token: SeCreateGlobalPrivilege	732	wiresvc.exe
Token: 33	732	wiresvc.exe
Token: 34	732	wiresvc.exe
Token: 35	732	wiresvc.exe
Token: 36	732	wiresvc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
732	wiresvc.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4952 wrote to memory of 3360	4952	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe	85
PID 4952 wrote to memory of 3360	4952	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe	85
PID 4952 wrote to memory of 3360	4952	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe	85
PID 4952 wrote to memory of 732	4952	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe	88
PID 4952 wrote to memory of 732	4952	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe	88
PID 4952 wrote to memory of 732	4952	8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe	88
PID 732 wrote to memory of 720	732	wiresvc.exe	89
PID 732 wrote to memory of 720	732	wiresvc.exe	89
PID 732 wrote to memory of 720	732	wiresvc.exe	89

C:\Users\Admin\AppData\Local\Temp\8f36707a884175fc489962aaf56e2a5f_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8f36707a884175fc489962aaf56e2a5f_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
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4952
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\SysWOW64\explorer.exe"
  2⤵
  PID:3360
- C:\Users\Admin\AppData\Roaming\Internet\wiresvc.exe
  "C:\Users\Admin\AppData\Roaming\Internet\wiresvc.exe"
  2⤵
  - Checks BIOS information in registry
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:732
- - C:\Windows\SysWOW64\explorer.exe
    "C:\Windows\SysWOW64\explorer.exe"
    3⤵
    PID:720

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

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\Roaming\Internet\wiresvc.exe

Filesize
233KB

MD5
8f36707a884175fc489962aaf56e2a5f

SHA1
74a2094e7beffb90408a863e9b55223698b932f8

SHA256
eeccab59578ff3ee1e4e88da4edcb5765ef4380b8ca40ca8594b15e82cc7bcb2

SHA512
eb47fb50ceea3717122f0fb0a11fd047ad5d315158b250442debcb0648357b079a43e484233666241c56116ad1f26b476d21935c49b2e2e8bcaa606181ec899e

Download Submit
memory/732-43-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/732-52-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/732-42-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/732-37-0x00000000008D0000-0x00000000008D1000-memory.dmp

Filesize
4KB

Download
memory/732-38-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/732-39-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/732-40-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/732-41-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/732-51-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/732-50-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/732-45-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/732-44-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/732-46-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/732-47-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/732-48-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/732-49-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4952-1-0x0000000000AE0000-0x0000000000AE1000-memory.dmp

Filesize
4KB

Download
memory/4952-35-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4952-0-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads