darkcomet | 9ec6960f5bd3b7fb89bb21e43520cd348222918a69023f37e248a0732a46c587

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 12:02

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General

Target

JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Size

232KB
MD5

5451c99792e6a12b34a84474f258575a
SHA1

eb5a41dc732107377a8aefea572777d06c5e7b2c
SHA256

9ec6960f5bd3b7fb89bb21e43520cd348222918a69023f37e248a0732a46c587
SHA512

a09d777bf5d38312cbba3925db207ee98811f0e9d66d9ab01d5b3530c43fefc4b8d8a030d38194cf86fa18ce8c2b30345c9989bdad992380c3d242a12c9a4683
SSDEEP

3072:NeYWY2T3N1FrWyIifIJKq7UCZ6STpiSHFV4un13C+qXYRVXLdZb/WnyablH:ZLyNTT1fI+YB9xOun9Chcxx8yab

Score

10^/10

darkcomet discovery evasion 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\\Documents\\MSDCSC\\msdcsc.exe"	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe

Disables RegEdit via registry modification 2 IoCs

evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	msdcsc.exe

Disables Task Manager via registry modification
evasion

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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe

Executes dropped EXE 1 IoCs

pid	Process
2416	msdcsc.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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2416 set thread context of 4420	2416	msdcsc.exe	88

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 5 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_5451c99792e6a12b34a84474f258575a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iexplore.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2452	PING.EXE
5056	cmd.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2452	PING.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4420	iexplore.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1828	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeSecurityPrivilege	1828	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeTakeOwnershipPrivilege	1828	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeLoadDriverPrivilege	1828	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeSystemProfilePrivilege	1828	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeSystemtimePrivilege	1828	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeProfSingleProcessPrivilege	1828	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeIncBasePriorityPrivilege	1828	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeCreatePagefilePrivilege	1828	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeBackupPrivilege	1828	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeRestorePrivilege	1828	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeShutdownPrivilege	1828	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeDebugPrivilege	1828	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeSystemEnvironmentPrivilege	1828	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeChangeNotifyPrivilege	1828	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeRemoteShutdownPrivilege	1828	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeUndockPrivilege	1828	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeManageVolumePrivilege	1828	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeImpersonatePrivilege	1828	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeCreateGlobalPrivilege	1828	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: 33	1828	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: 34	1828	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: 35	1828	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: 36	1828	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
Token: SeIncreaseQuotaPrivilege	2416	msdcsc.exe
Token: SeSecurityPrivilege	2416	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2416	msdcsc.exe
Token: SeLoadDriverPrivilege	2416	msdcsc.exe
Token: SeSystemProfilePrivilege	2416	msdcsc.exe
Token: SeSystemtimePrivilege	2416	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2416	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2416	msdcsc.exe
Token: SeCreatePagefilePrivilege	2416	msdcsc.exe
Token: SeBackupPrivilege	2416	msdcsc.exe
Token: SeRestorePrivilege	2416	msdcsc.exe
Token: SeShutdownPrivilege	2416	msdcsc.exe
Token: SeDebugPrivilege	2416	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2416	msdcsc.exe
Token: SeChangeNotifyPrivilege	2416	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2416	msdcsc.exe
Token: SeUndockPrivilege	2416	msdcsc.exe
Token: SeManageVolumePrivilege	2416	msdcsc.exe
Token: SeImpersonatePrivilege	2416	msdcsc.exe
Token: SeCreateGlobalPrivilege	2416	msdcsc.exe
Token: 33	2416	msdcsc.exe
Token: 34	2416	msdcsc.exe
Token: 35	2416	msdcsc.exe
Token: 36	2416	msdcsc.exe
Token: SeIncreaseQuotaPrivilege	4420	iexplore.exe
Token: SeSecurityPrivilege	4420	iexplore.exe
Token: SeTakeOwnershipPrivilege	4420	iexplore.exe
Token: SeLoadDriverPrivilege	4420	iexplore.exe
Token: SeSystemProfilePrivilege	4420	iexplore.exe
Token: SeSystemtimePrivilege	4420	iexplore.exe
Token: SeProfSingleProcessPrivilege	4420	iexplore.exe
Token: SeIncBasePriorityPrivilege	4420	iexplore.exe
Token: SeCreatePagefilePrivilege	4420	iexplore.exe
Token: SeBackupPrivilege	4420	iexplore.exe
Token: SeRestorePrivilege	4420	iexplore.exe
Token: SeShutdownPrivilege	4420	iexplore.exe
Token: SeDebugPrivilege	4420	iexplore.exe
Token: SeSystemEnvironmentPrivilege	4420	iexplore.exe
Token: SeChangeNotifyPrivilege	4420	iexplore.exe
Token: SeRemoteShutdownPrivilege	4420	iexplore.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4420	iexplore.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1828 wrote to memory of 5056	1828	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe	84
PID 1828 wrote to memory of 5056	1828	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe	84
PID 1828 wrote to memory of 5056	1828	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe	84
PID 5056 wrote to memory of 2452	5056	cmd.exe	86
PID 5056 wrote to memory of 2452	5056	cmd.exe	86
PID 5056 wrote to memory of 2452	5056	cmd.exe	86
PID 1828 wrote to memory of 2416	1828	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe	87
PID 1828 wrote to memory of 2416	1828	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe	87
PID 1828 wrote to memory of 2416	1828	JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe	87
PID 2416 wrote to memory of 4420	2416	msdcsc.exe	88
PID 2416 wrote to memory of 4420	2416	msdcsc.exe	88
PID 2416 wrote to memory of 4420	2416	msdcsc.exe	88
PID 2416 wrote to memory of 4420	2416	msdcsc.exe	88
PID 2416 wrote to memory of 4420	2416	msdcsc.exe	88

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5451c99792e6a12b34a84474f258575a.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:1828
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k ping 127.0.0.1 -n 4 && del "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_5451c99792e6a12b34a84474f258575a.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:5056
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 4
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2452
- C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
  "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
  2⤵
  - Disables RegEdit via registry modification
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2416
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
    3⤵
    - Disables RegEdit via registry modification
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:4420

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

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Downloads

C:\Users\Admin\Documents\MSDCSC\msdcsc.exe

Filesize
232KB

MD5
5451c99792e6a12b34a84474f258575a

SHA1
eb5a41dc732107377a8aefea572777d06c5e7b2c

SHA256
9ec6960f5bd3b7fb89bb21e43520cd348222918a69023f37e248a0732a46c587

SHA512
a09d777bf5d38312cbba3925db207ee98811f0e9d66d9ab01d5b3530c43fefc4b8d8a030d38194cf86fa18ce8c2b30345c9989bdad992380c3d242a12c9a4683

Download Submit
memory/1828-0-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1828-1-0x0000000002140000-0x0000000002141000-memory.dmp

Filesize
4KB

Download
memory/1828-63-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2416-64-0x0000000002140000-0x0000000002141000-memory.dmp

Filesize
4KB

Download
memory/2416-67-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads