darkcomet | 45f13c2ef9560816343176cce689c89e8a1fcd48e021b71093b56d19cb3c947b

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25/01/2024, 12:09

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

74a9f7ac76250c6eb9d0c674a4249c92.exe
Size

426KB
MD5

74a9f7ac76250c6eb9d0c674a4249c92
SHA1

8c544f4df935bbb9c13e8c88359497f134e47abd
SHA256

45f13c2ef9560816343176cce689c89e8a1fcd48e021b71093b56d19cb3c947b
SHA512

e4476f5c1792f9361ee5f53968b3f1abbd8b012c3f0cc47580565a54b5b41d12edb29aa0cd4fbe5e08e7d20a1175b891c37e58fa908aa5737c84cbb8bbdb2d25
SSDEEP

12288:6Tij6aV7gcz/cWCrR46sYjtyW3Ydi7N0+u21j6c769k:66lNcWCtpsYjtyOwgF1OK6W

Score

10^/10

darkcomet guest16 persistence rat trojan

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

basel1234.no-ip.biz:81

Mutex

DC_MUTEX-F54S21D

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
LSspVhv0MBT2
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

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"	74a9f7ac76250c6eb9d0c674a4249c92.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-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation	74a9f7ac76250c6eb9d0c674a4249c92.exe

Executes dropped EXE 2 IoCs

pid	Process
1572	msdcsc.exe
4492	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-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\Documents\\MSDCSC\\msdcsc.exe"	74a9f7ac76250c6eb9d0c674a4249c92.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 5044 set thread context of 1376	5044	74a9f7ac76250c6eb9d0c674a4249c92.exe	88
PID 1572 set thread context of 4492	1572	msdcsc.exe	90

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

System Information Discovery
T1082

Modifies registry class 4 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile"	msdcsc.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.key	74a9f7ac76250c6eb9d0c674a4249c92.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.key\ = "regfile"	74a9f7ac76250c6eb9d0c674a4249c92.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.key	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 48 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1376	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeSecurityPrivilege	1376	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeTakeOwnershipPrivilege	1376	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeLoadDriverPrivilege	1376	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeSystemProfilePrivilege	1376	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeSystemtimePrivilege	1376	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeProfSingleProcessPrivilege	1376	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeIncBasePriorityPrivilege	1376	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeCreatePagefilePrivilege	1376	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeBackupPrivilege	1376	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeRestorePrivilege	1376	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeShutdownPrivilege	1376	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeDebugPrivilege	1376	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeSystemEnvironmentPrivilege	1376	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeChangeNotifyPrivilege	1376	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeRemoteShutdownPrivilege	1376	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeUndockPrivilege	1376	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeManageVolumePrivilege	1376	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeImpersonatePrivilege	1376	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeCreateGlobalPrivilege	1376	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: 33	1376	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: 34	1376	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: 35	1376	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: 36	1376	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeIncreaseQuotaPrivilege	4492	msdcsc.exe
Token: SeSecurityPrivilege	4492	msdcsc.exe
Token: SeTakeOwnershipPrivilege	4492	msdcsc.exe
Token: SeLoadDriverPrivilege	4492	msdcsc.exe
Token: SeSystemProfilePrivilege	4492	msdcsc.exe
Token: SeSystemtimePrivilege	4492	msdcsc.exe
Token: SeProfSingleProcessPrivilege	4492	msdcsc.exe
Token: SeIncBasePriorityPrivilege	4492	msdcsc.exe
Token: SeCreatePagefilePrivilege	4492	msdcsc.exe
Token: SeBackupPrivilege	4492	msdcsc.exe
Token: SeRestorePrivilege	4492	msdcsc.exe
Token: SeShutdownPrivilege	4492	msdcsc.exe
Token: SeDebugPrivilege	4492	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	4492	msdcsc.exe
Token: SeChangeNotifyPrivilege	4492	msdcsc.exe
Token: SeRemoteShutdownPrivilege	4492	msdcsc.exe
Token: SeUndockPrivilege	4492	msdcsc.exe
Token: SeManageVolumePrivilege	4492	msdcsc.exe
Token: SeImpersonatePrivilege	4492	msdcsc.exe
Token: SeCreateGlobalPrivilege	4492	msdcsc.exe
Token: 33	4492	msdcsc.exe
Token: 34	4492	msdcsc.exe
Token: 35	4492	msdcsc.exe
Token: 36	4492	msdcsc.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
5044	74a9f7ac76250c6eb9d0c674a4249c92.exe
1572	msdcsc.exe
4492	msdcsc.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 5044 wrote to memory of 1376	5044	74a9f7ac76250c6eb9d0c674a4249c92.exe	88
PID 5044 wrote to memory of 1376	5044	74a9f7ac76250c6eb9d0c674a4249c92.exe	88
PID 5044 wrote to memory of 1376	5044	74a9f7ac76250c6eb9d0c674a4249c92.exe	88
PID 5044 wrote to memory of 1376	5044	74a9f7ac76250c6eb9d0c674a4249c92.exe	88
PID 5044 wrote to memory of 1376	5044	74a9f7ac76250c6eb9d0c674a4249c92.exe	88
PID 5044 wrote to memory of 1376	5044	74a9f7ac76250c6eb9d0c674a4249c92.exe	88
PID 5044 wrote to memory of 1376	5044	74a9f7ac76250c6eb9d0c674a4249c92.exe	88
PID 5044 wrote to memory of 1376	5044	74a9f7ac76250c6eb9d0c674a4249c92.exe	88
PID 5044 wrote to memory of 1376	5044	74a9f7ac76250c6eb9d0c674a4249c92.exe	88
PID 5044 wrote to memory of 1376	5044	74a9f7ac76250c6eb9d0c674a4249c92.exe	88
PID 5044 wrote to memory of 1376	5044	74a9f7ac76250c6eb9d0c674a4249c92.exe	88
PID 5044 wrote to memory of 1376	5044	74a9f7ac76250c6eb9d0c674a4249c92.exe	88
PID 5044 wrote to memory of 1376	5044	74a9f7ac76250c6eb9d0c674a4249c92.exe	88
PID 5044 wrote to memory of 1376	5044	74a9f7ac76250c6eb9d0c674a4249c92.exe	88
PID 1376 wrote to memory of 1572	1376	74a9f7ac76250c6eb9d0c674a4249c92.exe	89
PID 1376 wrote to memory of 1572	1376	74a9f7ac76250c6eb9d0c674a4249c92.exe	89
PID 1376 wrote to memory of 1572	1376	74a9f7ac76250c6eb9d0c674a4249c92.exe	89
PID 1572 wrote to memory of 4492	1572	msdcsc.exe	90
PID 1572 wrote to memory of 4492	1572	msdcsc.exe	90
PID 1572 wrote to memory of 4492	1572	msdcsc.exe	90
PID 1572 wrote to memory of 4492	1572	msdcsc.exe	90
PID 1572 wrote to memory of 4492	1572	msdcsc.exe	90
PID 1572 wrote to memory of 4492	1572	msdcsc.exe	90
PID 1572 wrote to memory of 4492	1572	msdcsc.exe	90
PID 1572 wrote to memory of 4492	1572	msdcsc.exe	90
PID 1572 wrote to memory of 4492	1572	msdcsc.exe	90
PID 1572 wrote to memory of 4492	1572	msdcsc.exe	90
PID 1572 wrote to memory of 4492	1572	msdcsc.exe	90
PID 1572 wrote to memory of 4492	1572	msdcsc.exe	90
PID 1572 wrote to memory of 4492	1572	msdcsc.exe	90
PID 1572 wrote to memory of 4492	1572	msdcsc.exe	90

C:\Users\Admin\AppData\Local\Temp\74a9f7ac76250c6eb9d0c674a4249c92.exe
"C:\Users\Admin\AppData\Local\Temp\74a9f7ac76250c6eb9d0c674a4249c92.exe"
1⤵
- Suspicious use of SetThreadContext
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5044
- C:\Users\Admin\AppData\Local\Temp\74a9f7ac76250c6eb9d0c674a4249c92.exe
  C:\Users\Admin\AppData\Local\Temp\74a9f7ac76250c6eb9d0c674a4249c92.exe
  2⤵
  - Modifies WinLogon for persistence
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1376
- - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
    "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Modifies registry class
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:1572
  - - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      4⤵
      Executes dropped EXE
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:4492

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
322KB

MD5
e3f9a509e634ca19dca10f9fca557487

SHA1
c0eb5a11164b46dfb22cd9ff40e8450dcc598e07

SHA256
608c82bb91e08ce281318c5d8c37d639a175f7b2e1005e3e5fa88e76bf397d4c

SHA512
fc37c3660cf739d06df2f7b3aabaf450c0ca267c74d1cdfac18d59ca4bdb638db310a94ea20827891cacd87c3a5c013331a53c921827399bf9849046297f63ec

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

Filesize
373KB

MD5
638edd96eee2b0329395478356a06e07

SHA1
071f675638ae5b4e90e7b00a6713b35ef6d96b2c

SHA256
ecd204067450c4f59f1daa9ef660e679cade9074474222f48c50f78b7c48d4b0

SHA512
bfd84a00f47ed6f3216216665c1d627a7f335e0ae59c3697a66ce917704f3ce20498df8d0c36242403bbe401431e17de98f7d189e59f0f2011ceac60b267cbd1

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

Filesize
426KB

MD5
74a9f7ac76250c6eb9d0c674a4249c92

SHA1
8c544f4df935bbb9c13e8c88359497f134e47abd

SHA256
45f13c2ef9560816343176cce689c89e8a1fcd48e021b71093b56d19cb3c947b

SHA512
e4476f5c1792f9361ee5f53968b3f1abbd8b012c3f0cc47580565a54b5b41d12edb29aa0cd4fbe5e08e7d20a1175b891c37e58fa908aa5737c84cbb8bbdb2d25

Download Submit
memory/1376-3-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/1376-2-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/1376-4-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/1376-7-0x00000000022D0000-0x00000000022D1000-memory.dmp

Filesize
4KB

Download
memory/1376-6-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/1376-19-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/1572-27-0x0000000000400000-0x00000000006BE000-memory.dmp

Filesize
2.7MB

Download
memory/4492-29-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/4492-36-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/4492-30-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/4492-31-0x00000000006E0000-0x00000000006E1000-memory.dmp

Filesize
4KB

Download
memory/4492-46-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/4492-32-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/4492-33-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/4492-34-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/4492-35-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/4492-28-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/4492-37-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/4492-38-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/4492-39-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/4492-40-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/4492-41-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/4492-42-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/4492-43-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/4492-44-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/4492-45-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/5044-5-0x0000000000400000-0x00000000006BE000-memory.dmp

Filesize
2.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads