darkcomet | f885db8ff4beeb0de5ee6cf22eb6f87890c60496b9fb9fb2d5b5dce4ce4060d4

Analysis

max time kernel
141s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
29-11-2024 13:45

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General

Target

b19eda147b532b40f1d44c452644760d_JaffaCakes118.exe
Size

933KB
MD5

b19eda147b532b40f1d44c452644760d
SHA1

d0d43ca58a94af46c4eb0f2f8afcc37b455ed8c8
SHA256

f885db8ff4beeb0de5ee6cf22eb6f87890c60496b9fb9fb2d5b5dce4ce4060d4
SHA512

a96a1fe4750e289b0981a88972ce349c99d78f169aaf59966e31fc53a3e448fc850849f092756af4cb21770b9e92d776338a3568101d8ad5cfae79c34c5e4dfa
SSDEEP

24576:f1WgdwU0MlRDXoGqgnZ58wkZ1B+QtiE8ZRXbXFpF6AcInqti0:9dwUnu8Z56wbE8nXbXFn6AcWui0

Score

10^/10

darkcomet guest16 discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

95.133.3.230:1604

Mutex

DC_MUTEX-D1XJ1Z3

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
UprUuFRJwerw
install
true
offline_keylogger
true
persistence
false
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\\Documents\\MSDCSC\\msdcsc.exe"	svchost.exe

Checks computer location settings 2 TTPs 2 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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	svchost.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	b19eda147b532b40f1d44c452644760d_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
2060	svchost.exe
3232	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-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	svchost.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	b19eda147b532b40f1d44c452644760d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	2060	svchost.exe
Token: SeSecurityPrivilege	2060	svchost.exe
Token: SeTakeOwnershipPrivilege	2060	svchost.exe
Token: SeLoadDriverPrivilege	2060	svchost.exe
Token: SeSystemProfilePrivilege	2060	svchost.exe
Token: SeSystemtimePrivilege	2060	svchost.exe
Token: SeProfSingleProcessPrivilege	2060	svchost.exe
Token: SeIncBasePriorityPrivilege	2060	svchost.exe
Token: SeCreatePagefilePrivilege	2060	svchost.exe
Token: SeBackupPrivilege	2060	svchost.exe
Token: SeRestorePrivilege	2060	svchost.exe
Token: SeShutdownPrivilege	2060	svchost.exe
Token: SeDebugPrivilege	2060	svchost.exe
Token: SeSystemEnvironmentPrivilege	2060	svchost.exe
Token: SeChangeNotifyPrivilege	2060	svchost.exe
Token: SeRemoteShutdownPrivilege	2060	svchost.exe
Token: SeUndockPrivilege	2060	svchost.exe
Token: SeManageVolumePrivilege	2060	svchost.exe
Token: SeImpersonatePrivilege	2060	svchost.exe
Token: SeCreateGlobalPrivilege	2060	svchost.exe
Token: 33	2060	svchost.exe
Token: 34	2060	svchost.exe
Token: 35	2060	svchost.exe
Token: 36	2060	svchost.exe
Token: SeIncreaseQuotaPrivilege	3232	msdcsc.exe
Token: SeSecurityPrivilege	3232	msdcsc.exe
Token: SeTakeOwnershipPrivilege	3232	msdcsc.exe
Token: SeLoadDriverPrivilege	3232	msdcsc.exe
Token: SeSystemProfilePrivilege	3232	msdcsc.exe
Token: SeSystemtimePrivilege	3232	msdcsc.exe
Token: SeProfSingleProcessPrivilege	3232	msdcsc.exe
Token: SeIncBasePriorityPrivilege	3232	msdcsc.exe
Token: SeCreatePagefilePrivilege	3232	msdcsc.exe
Token: SeBackupPrivilege	3232	msdcsc.exe
Token: SeRestorePrivilege	3232	msdcsc.exe
Token: SeShutdownPrivilege	3232	msdcsc.exe
Token: SeDebugPrivilege	3232	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	3232	msdcsc.exe
Token: SeChangeNotifyPrivilege	3232	msdcsc.exe
Token: SeRemoteShutdownPrivilege	3232	msdcsc.exe
Token: SeUndockPrivilege	3232	msdcsc.exe
Token: SeManageVolumePrivilege	3232	msdcsc.exe
Token: SeImpersonatePrivilege	3232	msdcsc.exe
Token: SeCreateGlobalPrivilege	3232	msdcsc.exe
Token: 33	3232	msdcsc.exe
Token: 34	3232	msdcsc.exe
Token: 35	3232	msdcsc.exe
Token: 36	3232	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3232	msdcsc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3460 wrote to memory of 2060	3460	b19eda147b532b40f1d44c452644760d_JaffaCakes118.exe	82
PID 3460 wrote to memory of 2060	3460	b19eda147b532b40f1d44c452644760d_JaffaCakes118.exe	82
PID 3460 wrote to memory of 2060	3460	b19eda147b532b40f1d44c452644760d_JaffaCakes118.exe	82
PID 2060 wrote to memory of 3232	2060	svchost.exe	83
PID 2060 wrote to memory of 3232	2060	svchost.exe	83
PID 2060 wrote to memory of 3232	2060	svchost.exe	83

C:\Users\Admin\AppData\Local\Temp\b19eda147b532b40f1d44c452644760d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b19eda147b532b40f1d44c452644760d_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3460
- C:\Users\Admin\AppData\Local\Temp\svchost.exe
  "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Checks computer location settings
  - Executes dropped EXE
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2060
- - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
    "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:3232

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\Local\Temp\svchost.exe

Filesize
658KB

MD5
33a2e0956d07f887abf20d090dd277d0

SHA1
ed46bf4148d2b85d11a08aafe4f970bcc7329c8c

SHA256
d9ad6dc34992eaf0e09a6305739171fbc8eaa652a1258ff221dc62e5fa063f39

SHA512
634e948fcaf8708055777cb9fa82040e66250974a85eca650981606f77f224760a00c4a48f406a80fac729503765ccdd6e8c50356653d09ffc70bf9e1748da27

Download Submit
memory/2060-14-0x00000000025B0000-0x00000000025B1000-memory.dmp

Filesize
4KB

Download
memory/2060-28-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3232-27-0x00000000022B0000-0x00000000022B1000-memory.dmp

Filesize
4KB

Download
memory/3232-29-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3232-30-0x00000000022B0000-0x00000000022B1000-memory.dmp

Filesize
4KB

Download
memory/3232-32-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads