darkcomet | 3de9de5b3d1e938e2cb95483a419b30ff07023a41e95e17f305f8762da5433dc

Analysis

max time kernel
150s
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
19-12-2024 00:41

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General

Target

Updater v6.exe
Size

1.2MB
MD5

526417d194e22959c24294801abb2e33
SHA1

9a6fbf14d67c8abf76cf44912aecb29d39210a8e
SHA256

ac8efb58fe4930bbc25f1b33810a645d6801734de0fa35459f536e0ca3be4121
SHA512

db5598e271f47ad7e53565ef919a7644423fc665a70aa1d15ea08907ffc57d638e8dd8b011ab1616d0179e8ce35ea93701a6a3a83b48cb5c0099c0733acb61db
SSDEEP

12288:3Vkjh4MhQE2b+MI4VTsdwWsHKawV2Heh8V0qTvOoAz+vNWsIYdXZbWXeSAQdprQF:ymMiE2ylsLw+zNGoxEAXZbWvR2Y8

Score

10^/10

darkcomet deception <3 discovery persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Deception <3

Client.zapto.org:4755

Mutex

DC_MUTEX-VKQUW4X

Attributes

InstallPath
SystemFiles\Service.exe
gencode
dbUxqdHQGGGz
install
true
offline_keylogger
true
password
xt8JMnrDfXuD55K4
persistence
false
reg_key
Service

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\\system32\\SystemFiles\\Service.exe"	Service.exe

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	Service.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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	Service.exe

Executes dropped EXE 2 IoCs

pid	Process
4304	Service.exe
3648	Service.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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Service = "C:\\Windows\\system32\\SystemFiles\\Service.exe"	Service.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\SystemFiles\Service.exe	Service.exe
File opened for modification	C:\Windows\SysWOW64\SystemFiles\Service.exe	Service.exe
File opened for modification	C:\Windows\SysWOW64\SystemFiles\	Service.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	Service.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Service.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4304	Service.exe
Token: SeSecurityPrivilege	4304	Service.exe
Token: SeTakeOwnershipPrivilege	4304	Service.exe
Token: SeLoadDriverPrivilege	4304	Service.exe
Token: SeSystemProfilePrivilege	4304	Service.exe
Token: SeSystemtimePrivilege	4304	Service.exe
Token: SeProfSingleProcessPrivilege	4304	Service.exe
Token: SeIncBasePriorityPrivilege	4304	Service.exe
Token: SeCreatePagefilePrivilege	4304	Service.exe
Token: SeBackupPrivilege	4304	Service.exe
Token: SeRestorePrivilege	4304	Service.exe
Token: SeShutdownPrivilege	4304	Service.exe
Token: SeDebugPrivilege	4304	Service.exe
Token: SeSystemEnvironmentPrivilege	4304	Service.exe
Token: SeChangeNotifyPrivilege	4304	Service.exe
Token: SeRemoteShutdownPrivilege	4304	Service.exe
Token: SeUndockPrivilege	4304	Service.exe
Token: SeManageVolumePrivilege	4304	Service.exe
Token: SeImpersonatePrivilege	4304	Service.exe
Token: SeCreateGlobalPrivilege	4304	Service.exe
Token: 33	4304	Service.exe
Token: 34	4304	Service.exe
Token: 35	4304	Service.exe
Token: 36	4304	Service.exe
Token: SeIncreaseQuotaPrivilege	3648	Service.exe
Token: SeSecurityPrivilege	3648	Service.exe
Token: SeTakeOwnershipPrivilege	3648	Service.exe
Token: SeLoadDriverPrivilege	3648	Service.exe
Token: SeSystemProfilePrivilege	3648	Service.exe
Token: SeSystemtimePrivilege	3648	Service.exe
Token: SeProfSingleProcessPrivilege	3648	Service.exe
Token: SeIncBasePriorityPrivilege	3648	Service.exe
Token: SeCreatePagefilePrivilege	3648	Service.exe
Token: SeBackupPrivilege	3648	Service.exe
Token: SeRestorePrivilege	3648	Service.exe
Token: SeShutdownPrivilege	3648	Service.exe
Token: SeDebugPrivilege	3648	Service.exe
Token: SeSystemEnvironmentPrivilege	3648	Service.exe
Token: SeChangeNotifyPrivilege	3648	Service.exe
Token: SeRemoteShutdownPrivilege	3648	Service.exe
Token: SeUndockPrivilege	3648	Service.exe
Token: SeManageVolumePrivilege	3648	Service.exe
Token: SeImpersonatePrivilege	3648	Service.exe
Token: SeCreateGlobalPrivilege	3648	Service.exe
Token: 33	3648	Service.exe
Token: 34	3648	Service.exe
Token: 35	3648	Service.exe
Token: 36	3648	Service.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3648	Service.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 520 wrote to memory of 4304	520	Updater v6.exe	85
PID 520 wrote to memory of 4304	520	Updater v6.exe	85
PID 520 wrote to memory of 4304	520	Updater v6.exe	85
PID 4304 wrote to memory of 3648	4304	Service.exe	86
PID 4304 wrote to memory of 3648	4304	Service.exe	86
PID 4304 wrote to memory of 3648	4304	Service.exe	86
PID 3648 wrote to memory of 3708	3648	Service.exe	87
PID 3648 wrote to memory of 3708	3648	Service.exe	87
PID 3648 wrote to memory of 3708	3648	Service.exe	87
PID 3648 wrote to memory of 3708	3648	Service.exe	87
PID 3648 wrote to memory of 3708	3648	Service.exe	87
PID 3648 wrote to memory of 3708	3648	Service.exe	87
PID 3648 wrote to memory of 3708	3648	Service.exe	87
PID 3648 wrote to memory of 3708	3648	Service.exe	87
PID 3648 wrote to memory of 3708	3648	Service.exe	87
PID 3648 wrote to memory of 3708	3648	Service.exe	87
PID 3648 wrote to memory of 3708	3648	Service.exe	87
PID 3648 wrote to memory of 3708	3648	Service.exe	87
PID 3648 wrote to memory of 3708	3648	Service.exe	87
PID 3648 wrote to memory of 3708	3648	Service.exe	87
PID 3648 wrote to memory of 3708	3648	Service.exe	87
PID 3648 wrote to memory of 3708	3648	Service.exe	87
PID 3648 wrote to memory of 3708	3648	Service.exe	87
PID 3648 wrote to memory of 3708	3648	Service.exe	87
PID 3648 wrote to memory of 3708	3648	Service.exe	87
PID 3648 wrote to memory of 3708	3648	Service.exe	87
PID 3648 wrote to memory of 3708	3648	Service.exe	87
PID 3648 wrote to memory of 3708	3648	Service.exe	87

C:\Users\Admin\AppData\Local\Temp\Updater v6.exe
"C:\Users\Admin\AppData\Local\Temp\Updater v6.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:520
- C:\Users\Admin\AppData\Local\Temp\Service.exe
  C:\Users\Admin\AppData\Local\Temp\Service.exe
  2⤵
  - Modifies WinLogon for persistence
  - Drops file in Drivers directory
  - Checks computer location settings
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4304
- - C:\Windows\SysWOW64\SystemFiles\Service.exe
    "C:\Windows\system32\SystemFiles\Service.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:3648
  - - C:\Windows\SysWOW64\notepad.exe
      notepad
      4⤵
      System Location Discovery: System Language Discovery
      PID:3708

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\Service.exe

Filesize
659KB

MD5
12e42a6705abed7a4c58616f2d6db299

SHA1
e6f13cf121a8c94ff58052f7a9e1d025acf1d2ff

SHA256
3a8568d93c7d5d0ec3e5dcb267ce6b18209fb1eb0e4892a76f9860ddcda7521c

SHA512
c885a7687af1c0be4584fbf050db20bae8f6b03aab3ccf56b77f6c7a1978253ff381861352b3fb89ae4aa336dabddbc529b865a3676142d00c1e94cdf1cd1f68

Download Submit
memory/520-15-0x00007FF9A1D20000-0x00007FF9A26C1000-memory.dmp

Filesize
9.6MB

Download
memory/520-1-0x000000001BF80000-0x000000001C026000-memory.dmp

Filesize
664KB

Download
memory/520-2-0x00007FF9A1D20000-0x00007FF9A26C1000-memory.dmp

Filesize
9.6MB

Download
memory/520-3-0x00007FF9A1D20000-0x00007FF9A26C1000-memory.dmp

Filesize
9.6MB

Download
memory/520-0-0x00007FF9A1FD5000-0x00007FF9A1FD6000-memory.dmp

Filesize
4KB

Download
memory/3648-29-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3648-32-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3648-40-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3648-39-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3648-27-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3648-28-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3648-38-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3648-30-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3648-31-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3648-24-0x0000000002010000-0x0000000002011000-memory.dmp

Filesize
4KB

Download
memory/3648-33-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3648-34-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3648-35-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3648-36-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3648-37-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/3708-25-0x0000000001340000-0x0000000001341000-memory.dmp

Filesize
4KB

Download
memory/4304-8-0x0000000002500000-0x0000000002501000-memory.dmp

Filesize
4KB

Download
memory/4304-26-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads