darkcomet | 19d84c93d3a8f8e201de408a80fd436acdfa01d0659619510f69459aa8266323

Analysis

max time kernel
156s
max time network
164s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
26/12/2023, 02:56

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General

Target

4e3d4f5356be34977d5660cefbb5d150.exe
Size

713KB
MD5

4e3d4f5356be34977d5660cefbb5d150
SHA1

f920e41c07f2c079085c307e131c66cee8bb9824
SHA256

19d84c93d3a8f8e201de408a80fd436acdfa01d0659619510f69459aa8266323
SHA512

329bdfc2e13dfd91167c1cba3287bb336881e63823a0441b818e535e395a8f05d1a8257cd926956ce21bdfe0c05fd4539d7c1e7399fc7b5d01a43f81968dd12e
SSDEEP

12288:u4IXhpvNWw276S/DuoeFcfbmiJ99VPhYR5MTSHvLenELrWv1lZw4JuMkMh/fy45p:ufnAw2WWeFcfbP9VPSPMTSPL/rWvzq4R

Score

10^/10

darkcomet guest16_min persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16_min

hackerlua.zapto.org:4444

Mutex

DCMIN_MUTEX-BD66R76

Attributes

InstallPath
DCSCMIN\IMDCSC.exe
gencode
K1rJHsoCQpfG
install
true
offline_keylogger
true
persistence
false
reg_key
DarkComet RAT

Signatures

Darkcomet
DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.
trojan rat 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\\DCSCMIN\\IMDCSC.exe"	AS.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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	4e3d4f5356be34977d5660cefbb5d150.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	AS.EXE

Executes dropped EXE 2 IoCs

pid	Process
4816	AS.EXE
3876	IMDCSC.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-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\DarkComet RAT = "C:\\Users\\Admin\\Documents\\DCSCMIN\\IMDCSC.exe"	AS.EXE

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	4816	AS.EXE
Token: SeSecurityPrivilege	4816	AS.EXE
Token: SeTakeOwnershipPrivilege	4816	AS.EXE
Token: SeLoadDriverPrivilege	4816	AS.EXE
Token: SeSystemProfilePrivilege	4816	AS.EXE
Token: SeSystemtimePrivilege	4816	AS.EXE
Token: SeProfSingleProcessPrivilege	4816	AS.EXE
Token: SeIncBasePriorityPrivilege	4816	AS.EXE
Token: SeCreatePagefilePrivilege	4816	AS.EXE
Token: SeBackupPrivilege	4816	AS.EXE
Token: SeRestorePrivilege	4816	AS.EXE
Token: SeShutdownPrivilege	4816	AS.EXE
Token: SeDebugPrivilege	4816	AS.EXE
Token: SeSystemEnvironmentPrivilege	4816	AS.EXE
Token: SeChangeNotifyPrivilege	4816	AS.EXE
Token: SeRemoteShutdownPrivilege	4816	AS.EXE
Token: SeUndockPrivilege	4816	AS.EXE
Token: SeManageVolumePrivilege	4816	AS.EXE
Token: SeImpersonatePrivilege	4816	AS.EXE
Token: SeCreateGlobalPrivilege	4816	AS.EXE
Token: 33	4816	AS.EXE
Token: 34	4816	AS.EXE
Token: 35	4816	AS.EXE
Token: 36	4816	AS.EXE
Token: SeIncreaseQuotaPrivilege	3876	IMDCSC.exe
Token: SeSecurityPrivilege	3876	IMDCSC.exe
Token: SeTakeOwnershipPrivilege	3876	IMDCSC.exe
Token: SeLoadDriverPrivilege	3876	IMDCSC.exe
Token: SeSystemProfilePrivilege	3876	IMDCSC.exe
Token: SeSystemtimePrivilege	3876	IMDCSC.exe
Token: SeProfSingleProcessPrivilege	3876	IMDCSC.exe
Token: SeIncBasePriorityPrivilege	3876	IMDCSC.exe
Token: SeCreatePagefilePrivilege	3876	IMDCSC.exe
Token: SeBackupPrivilege	3876	IMDCSC.exe
Token: SeRestorePrivilege	3876	IMDCSC.exe
Token: SeShutdownPrivilege	3876	IMDCSC.exe
Token: SeDebugPrivilege	3876	IMDCSC.exe
Token: SeSystemEnvironmentPrivilege	3876	IMDCSC.exe
Token: SeChangeNotifyPrivilege	3876	IMDCSC.exe
Token: SeRemoteShutdownPrivilege	3876	IMDCSC.exe
Token: SeUndockPrivilege	3876	IMDCSC.exe
Token: SeManageVolumePrivilege	3876	IMDCSC.exe
Token: SeImpersonatePrivilege	3876	IMDCSC.exe
Token: SeCreateGlobalPrivilege	3876	IMDCSC.exe
Token: 33	3876	IMDCSC.exe
Token: 34	3876	IMDCSC.exe
Token: 35	3876	IMDCSC.exe
Token: 36	3876	IMDCSC.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3876	IMDCSC.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2512 wrote to memory of 4816	2512	4e3d4f5356be34977d5660cefbb5d150.exe	91
PID 2512 wrote to memory of 4816	2512	4e3d4f5356be34977d5660cefbb5d150.exe	91
PID 2512 wrote to memory of 4816	2512	4e3d4f5356be34977d5660cefbb5d150.exe	91
PID 4816 wrote to memory of 3876	4816	AS.EXE	92
PID 4816 wrote to memory of 3876	4816	AS.EXE	92
PID 4816 wrote to memory of 3876	4816	AS.EXE	92

C:\Users\Admin\AppData\Local\Temp\4e3d4f5356be34977d5660cefbb5d150.exe
"C:\Users\Admin\AppData\Local\Temp\4e3d4f5356be34977d5660cefbb5d150.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2512
- C:\Users\Admin\AppData\Local\Temp\AS.EXE
  "C:\Users\Admin\AppData\Local\Temp\AS.EXE"
  2⤵
  - Modifies WinLogon for persistence
  - Checks computer location settings
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4816
- - C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe
    "C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:3876

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\AS.EXE

Filesize
660KB

MD5
d0216ec3d286dbefe7c39b55e80db00b

SHA1
df25fbc81dda5467cf95a504c8a1b61f5a8fc992

SHA256
d9013b4fe771be8f5556bf94e803a8cb20c5598a026e9c3b062a8f4afea38423

SHA512
ed64e68354d0277d286fb8dc3aeba7d06bee60bd0b5844f306216a960a0d47a3eb05c525d14288af6a44b199823190e1bab7337a40671ab9a67016de6d392fb1

Download Submit
memory/3876-29-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3876-31-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3876-24-0x00000000023C0000-0x00000000023C1000-memory.dmp

Filesize
4KB

Download
memory/3876-25-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3876-26-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3876-27-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3876-37-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3876-28-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3876-30-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3876-36-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3876-32-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3876-33-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3876-34-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/3876-35-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/4816-11-0x00000000022C0000-0x00000000022C1000-memory.dmp

Filesize
4KB

Download
memory/4816-23-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads