darkcomet | 45f13c2ef9560816343176cce689c89e8a1fcd48e021b71093b56d19cb3c947b

Analysis

max time kernel
150s
max time network
118s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-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

Executes dropped EXE 2 IoCs

pid	Process
2920	msdcsc.exe
2600	msdcsc.exe

Loads dropped DLL 8 IoCs

pid	Process
1652	74a9f7ac76250c6eb9d0c674a4249c92.exe
2920	msdcsc.exe
2920	msdcsc.exe
2920	msdcsc.exe
2920	msdcsc.exe
2600	msdcsc.exe
2600	msdcsc.exe
2600	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-1-5-21-3470981204-343661084-3367201002-1000\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 2360 set thread context of 1652	2360	74a9f7ac76250c6eb9d0c674a4249c92.exe	28
PID 2920 set thread context of 2600	2920	msdcsc.exe	30

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	1652	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeSecurityPrivilege	1652	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeTakeOwnershipPrivilege	1652	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeLoadDriverPrivilege	1652	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeSystemProfilePrivilege	1652	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeSystemtimePrivilege	1652	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeProfSingleProcessPrivilege	1652	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeIncBasePriorityPrivilege	1652	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeCreatePagefilePrivilege	1652	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeBackupPrivilege	1652	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeRestorePrivilege	1652	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeShutdownPrivilege	1652	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeDebugPrivilege	1652	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeSystemEnvironmentPrivilege	1652	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeChangeNotifyPrivilege	1652	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeRemoteShutdownPrivilege	1652	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeUndockPrivilege	1652	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeManageVolumePrivilege	1652	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeImpersonatePrivilege	1652	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeCreateGlobalPrivilege	1652	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: 33	1652	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: 34	1652	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: 35	1652	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeRestorePrivilege	1652	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeBackupPrivilege	1652	74a9f7ac76250c6eb9d0c674a4249c92.exe
Token: SeIncreaseQuotaPrivilege	2600	msdcsc.exe
Token: SeSecurityPrivilege	2600	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2600	msdcsc.exe
Token: SeLoadDriverPrivilege	2600	msdcsc.exe
Token: SeSystemProfilePrivilege	2600	msdcsc.exe
Token: SeSystemtimePrivilege	2600	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2600	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2600	msdcsc.exe
Token: SeCreatePagefilePrivilege	2600	msdcsc.exe
Token: SeBackupPrivilege	2600	msdcsc.exe
Token: SeRestorePrivilege	2600	msdcsc.exe
Token: SeShutdownPrivilege	2600	msdcsc.exe
Token: SeDebugPrivilege	2600	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2600	msdcsc.exe
Token: SeChangeNotifyPrivilege	2600	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2600	msdcsc.exe
Token: SeUndockPrivilege	2600	msdcsc.exe
Token: SeManageVolumePrivilege	2600	msdcsc.exe
Token: SeImpersonatePrivilege	2600	msdcsc.exe
Token: SeCreateGlobalPrivilege	2600	msdcsc.exe
Token: 33	2600	msdcsc.exe
Token: 34	2600	msdcsc.exe
Token: 35	2600	msdcsc.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
2360	74a9f7ac76250c6eb9d0c674a4249c92.exe
2920	msdcsc.exe
2600	msdcsc.exe

Suspicious use of WriteProcessMemory 43 IoCs

description	pid	Process	procid_target
PID 2360 wrote to memory of 1652	2360	74a9f7ac76250c6eb9d0c674a4249c92.exe	28
PID 2360 wrote to memory of 1652	2360	74a9f7ac76250c6eb9d0c674a4249c92.exe	28
PID 2360 wrote to memory of 1652	2360	74a9f7ac76250c6eb9d0c674a4249c92.exe	28
PID 2360 wrote to memory of 1652	2360	74a9f7ac76250c6eb9d0c674a4249c92.exe	28
PID 2360 wrote to memory of 1652	2360	74a9f7ac76250c6eb9d0c674a4249c92.exe	28
PID 2360 wrote to memory of 1652	2360	74a9f7ac76250c6eb9d0c674a4249c92.exe	28
PID 2360 wrote to memory of 1652	2360	74a9f7ac76250c6eb9d0c674a4249c92.exe	28
PID 2360 wrote to memory of 1652	2360	74a9f7ac76250c6eb9d0c674a4249c92.exe	28
PID 2360 wrote to memory of 1652	2360	74a9f7ac76250c6eb9d0c674a4249c92.exe	28
PID 2360 wrote to memory of 1652	2360	74a9f7ac76250c6eb9d0c674a4249c92.exe	28
PID 2360 wrote to memory of 1652	2360	74a9f7ac76250c6eb9d0c674a4249c92.exe	28
PID 2360 wrote to memory of 1652	2360	74a9f7ac76250c6eb9d0c674a4249c92.exe	28
PID 2360 wrote to memory of 1652	2360	74a9f7ac76250c6eb9d0c674a4249c92.exe	28
PID 2360 wrote to memory of 1652	2360	74a9f7ac76250c6eb9d0c674a4249c92.exe	28
PID 2360 wrote to memory of 1652	2360	74a9f7ac76250c6eb9d0c674a4249c92.exe	28
PID 2360 wrote to memory of 1652	2360	74a9f7ac76250c6eb9d0c674a4249c92.exe	28
PID 2360 wrote to memory of 1652	2360	74a9f7ac76250c6eb9d0c674a4249c92.exe	28
PID 2360 wrote to memory of 1652	2360	74a9f7ac76250c6eb9d0c674a4249c92.exe	28
PID 1652 wrote to memory of 2920	1652	74a9f7ac76250c6eb9d0c674a4249c92.exe	29
PID 1652 wrote to memory of 2920	1652	74a9f7ac76250c6eb9d0c674a4249c92.exe	29
PID 1652 wrote to memory of 2920	1652	74a9f7ac76250c6eb9d0c674a4249c92.exe	29
PID 1652 wrote to memory of 2920	1652	74a9f7ac76250c6eb9d0c674a4249c92.exe	29
PID 1652 wrote to memory of 2920	1652	74a9f7ac76250c6eb9d0c674a4249c92.exe	29
PID 1652 wrote to memory of 2920	1652	74a9f7ac76250c6eb9d0c674a4249c92.exe	29
PID 1652 wrote to memory of 2920	1652	74a9f7ac76250c6eb9d0c674a4249c92.exe	29
PID 2920 wrote to memory of 2600	2920	msdcsc.exe	30
PID 2920 wrote to memory of 2600	2920	msdcsc.exe	30
PID 2920 wrote to memory of 2600	2920	msdcsc.exe	30
PID 2920 wrote to memory of 2600	2920	msdcsc.exe	30
PID 2920 wrote to memory of 2600	2920	msdcsc.exe	30
PID 2920 wrote to memory of 2600	2920	msdcsc.exe	30
PID 2920 wrote to memory of 2600	2920	msdcsc.exe	30
PID 2920 wrote to memory of 2600	2920	msdcsc.exe	30
PID 2920 wrote to memory of 2600	2920	msdcsc.exe	30
PID 2920 wrote to memory of 2600	2920	msdcsc.exe	30
PID 2920 wrote to memory of 2600	2920	msdcsc.exe	30
PID 2920 wrote to memory of 2600	2920	msdcsc.exe	30
PID 2920 wrote to memory of 2600	2920	msdcsc.exe	30
PID 2920 wrote to memory of 2600	2920	msdcsc.exe	30
PID 2920 wrote to memory of 2600	2920	msdcsc.exe	30
PID 2920 wrote to memory of 2600	2920	msdcsc.exe	30
PID 2920 wrote to memory of 2600	2920	msdcsc.exe	30
PID 2920 wrote to memory of 2600	2920	msdcsc.exe	30

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:2360
- C:\Users\Admin\AppData\Local\Temp\74a9f7ac76250c6eb9d0c674a4249c92.exe
  C:\Users\Admin\AppData\Local\Temp\74a9f7ac76250c6eb9d0c674a4249c92.exe
  2⤵
  - Modifies WinLogon for persistence
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1652
- - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
    "C:\Users\Admin\Documents\MSDCSC\msdcsc.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - Modifies registry class
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2920
  - - C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      C:\Users\Admin\Documents\MSDCSC\msdcsc.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:2600

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
426KB

MD5
74a9f7ac76250c6eb9d0c674a4249c92

SHA1
8c544f4df935bbb9c13e8c88359497f134e47abd

SHA256
45f13c2ef9560816343176cce689c89e8a1fcd48e021b71093b56d19cb3c947b

SHA512
e4476f5c1792f9361ee5f53968b3f1abbd8b012c3f0cc47580565a54b5b41d12edb29aa0cd4fbe5e08e7d20a1175b891c37e58fa908aa5737c84cbb8bbdb2d25

Download Submit
memory/1652-2-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/1652-3-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/1652-5-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/1652-7-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/1652-15-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2360-4-0x0000000000400000-0x00000000006BE000-memory.dmp

Filesize
2.7MB

Download
memory/2600-36-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2600-44-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2600-33-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2600-34-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2600-35-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2600-49-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2600-37-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2600-38-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2600-39-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2600-40-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2600-41-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2600-42-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2600-43-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2600-28-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2600-45-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2600-46-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2600-47-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2600-48-0x0000000000400000-0x00000000004B4000-memory.dmp

Filesize
720KB

Download
memory/2920-27-0x0000000000400000-0x00000000006BE000-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