darkcomet | 21e6c4cc8f7785a4d0c8f312cbdf5219d24a0f1176a144d109f91cc427a062f7

Analysis

max time kernel
151s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
24/12/2023, 23:26

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General

Target

1977c2bdcaec144f08371608e0e7ee3a.exe
Size

1.4MB
MD5

1977c2bdcaec144f08371608e0e7ee3a
SHA1

2e98c250c112b6479673c6fac4c130bf1e45287d
SHA256

21e6c4cc8f7785a4d0c8f312cbdf5219d24a0f1176a144d109f91cc427a062f7
SHA512

2be17328024380a1718adcb587485a778e1d463a9b911efeccba881030d9db8f175f4ec511abb562a2d5ea5dc7bce317452eede45e79646c69350fe0e026b1d7
SSDEEP

24576:hh0r/k3pEdZWmRO56tTl6UMs0VbEGZ88TUM+b1ImBsz06xz:k9AGMZZxz

Score

10^/10

darkcomet guest16_min persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16_min

testme123.no-ip.biz:82

Mutex

DCMIN_MUTEX-EVANRM5

Attributes

InstallPath
DCSCMIN\IMDCSC.exe
gencode
3ozW3J5fvJ1y
install
true
offline_keylogger
true
persistence
false
reg_key
Update

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"	file1.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-1-5-21-3336304223-2978740688-3645194410-1000\Control Panel\International\Geo\Nation	file1.exe

Executes dropped EXE 2 IoCs

pid	Process
1616	file1.exe
2488	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-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Update = "C:\\Users\\Admin\\Documents\\DCSCMIN\\IMDCSC.exe"	file1.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	1616	file1.exe
Token: SeSecurityPrivilege	1616	file1.exe
Token: SeTakeOwnershipPrivilege	1616	file1.exe
Token: SeLoadDriverPrivilege	1616	file1.exe
Token: SeSystemProfilePrivilege	1616	file1.exe
Token: SeSystemtimePrivilege	1616	file1.exe
Token: SeProfSingleProcessPrivilege	1616	file1.exe
Token: SeIncBasePriorityPrivilege	1616	file1.exe
Token: SeCreatePagefilePrivilege	1616	file1.exe
Token: SeBackupPrivilege	1616	file1.exe
Token: SeRestorePrivilege	1616	file1.exe
Token: SeShutdownPrivilege	1616	file1.exe
Token: SeDebugPrivilege	1616	file1.exe
Token: SeSystemEnvironmentPrivilege	1616	file1.exe
Token: SeChangeNotifyPrivilege	1616	file1.exe
Token: SeRemoteShutdownPrivilege	1616	file1.exe
Token: SeUndockPrivilege	1616	file1.exe
Token: SeManageVolumePrivilege	1616	file1.exe
Token: SeImpersonatePrivilege	1616	file1.exe
Token: SeCreateGlobalPrivilege	1616	file1.exe
Token: 33	1616	file1.exe
Token: 34	1616	file1.exe
Token: 35	1616	file1.exe
Token: 36	1616	file1.exe
Token: SeIncreaseQuotaPrivilege	2488	IMDCSC.exe
Token: SeSecurityPrivilege	2488	IMDCSC.exe
Token: SeTakeOwnershipPrivilege	2488	IMDCSC.exe
Token: SeLoadDriverPrivilege	2488	IMDCSC.exe
Token: SeSystemProfilePrivilege	2488	IMDCSC.exe
Token: SeSystemtimePrivilege	2488	IMDCSC.exe
Token: SeProfSingleProcessPrivilege	2488	IMDCSC.exe
Token: SeIncBasePriorityPrivilege	2488	IMDCSC.exe
Token: SeCreatePagefilePrivilege	2488	IMDCSC.exe
Token: SeBackupPrivilege	2488	IMDCSC.exe
Token: SeRestorePrivilege	2488	IMDCSC.exe
Token: SeShutdownPrivilege	2488	IMDCSC.exe
Token: SeDebugPrivilege	2488	IMDCSC.exe
Token: SeSystemEnvironmentPrivilege	2488	IMDCSC.exe
Token: SeChangeNotifyPrivilege	2488	IMDCSC.exe
Token: SeRemoteShutdownPrivilege	2488	IMDCSC.exe
Token: SeUndockPrivilege	2488	IMDCSC.exe
Token: SeManageVolumePrivilege	2488	IMDCSC.exe
Token: SeImpersonatePrivilege	2488	IMDCSC.exe
Token: SeCreateGlobalPrivilege	2488	IMDCSC.exe
Token: 33	2488	IMDCSC.exe
Token: 34	2488	IMDCSC.exe
Token: 35	2488	IMDCSC.exe
Token: 36	2488	IMDCSC.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2488	IMDCSC.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3248 wrote to memory of 1616	3248	1977c2bdcaec144f08371608e0e7ee3a.exe	92
PID 3248 wrote to memory of 1616	3248	1977c2bdcaec144f08371608e0e7ee3a.exe	92
PID 3248 wrote to memory of 1616	3248	1977c2bdcaec144f08371608e0e7ee3a.exe	92
PID 1616 wrote to memory of 2488	1616	file1.exe	96
PID 1616 wrote to memory of 2488	1616	file1.exe	96
PID 1616 wrote to memory of 2488	1616	file1.exe	96

C:\Users\Admin\AppData\Local\Temp\1977c2bdcaec144f08371608e0e7ee3a.exe
"C:\Users\Admin\AppData\Local\Temp\1977c2bdcaec144f08371608e0e7ee3a.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3248
- C:\Users\Admin\AppData\Local\Temp\file1.exe
  C:\Users\Admin\AppData\Local\Temp\\file1.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:1616
- - 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:2488

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\file1.exe

Filesize
658KB

MD5
080817d63b20fbe25f84a5ce767ef18a

SHA1
8f34c9d2a4446721c5be37cab12ee051f93a391f

SHA256
489d5801d6a8ba1863aea1f35e0e61ecab50308a0c6ac531dada72be03d95f5a

SHA512
27cac4ee8a4b11512a0857ddccfad9db19551ce667316df11634f36ae0cdceea47854b70df773ba0b939596f9f210d799dbbe4b27967f1123797537b863c0685

Download Submit
C:\Users\Admin\Documents\DCSCMIN\IMDCSC.exe

Filesize
598KB

MD5
fe844eef7bd65fe271cfca6148c9285f

SHA1
09b3be79c5027433d33a4aa0e6ffb16c7e17fa56

SHA256
e466f20da45cdfdae4a8603517bf7ddd12e02a19d1501675927ed235ff508030

SHA512
9859f0089b01a9a5c5b2a6953298120af5d26d832712e325cd1172db7b5ce5670c52a8237868ad75b44c2c488cb269fea4d82a9b81b69c41ce70aadd2d8ff9a3

Download Submit
memory/1616-31-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/1616-15-0x00000000024F0000-0x00000000024F1000-memory.dmp

Filesize
4KB

Download
memory/2488-36-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2488-37-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2488-38-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2488-35-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2488-34-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2488-33-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2488-32-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2488-39-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2488-40-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2488-41-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2488-30-0x0000000002390000-0x0000000002391000-memory.dmp

Filesize
4KB

Download
memory/3248-7-0x000000001C870000-0x000000001C8BC000-memory.dmp

Filesize
304KB

Download
memory/3248-18-0x00007FF857720000-0x00007FF8580C1000-memory.dmp

Filesize
9.6MB

Download
memory/3248-16-0x0000000001350000-0x0000000001360000-memory.dmp

Filesize
64KB

Download
memory/3248-10-0x0000000001350000-0x0000000001360000-memory.dmp

Filesize
64KB

Download
memory/3248-9-0x00007FF857720000-0x00007FF8580C1000-memory.dmp

Filesize
9.6MB

Download
memory/3248-8-0x0000000001350000-0x0000000001360000-memory.dmp

Filesize
64KB

Download
memory/3248-1-0x0000000001350000-0x0000000001360000-memory.dmp

Filesize
64KB

Download
memory/3248-6-0x0000000001370000-0x0000000001378000-memory.dmp

Filesize
32KB

Download
memory/3248-5-0x000000001C6D0000-0x000000001C76C000-memory.dmp

Filesize
624KB

Download
memory/3248-4-0x000000001C160000-0x000000001C62E000-memory.dmp

Filesize
4.8MB

Download
memory/3248-3-0x000000001BBE0000-0x000000001BC86000-memory.dmp

Filesize
664KB

Download
memory/3248-2-0x00007FF857720000-0x00007FF8580C1000-memory.dmp

Filesize
9.6MB

Download
memory/3248-0-0x00007FF857720000-0x00007FF8580C1000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads