darkcomet | 23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264

Analysis

max time kernel
120s
max time network
120s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
06-11-2024 10:17

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General

Target

23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe
Size

252KB
MD5

3e2d8dc667ca1f54e598579a058cae50
SHA1

7ba1170587bd92871fe5d231f84eb299bd028048
SHA256

23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264
SHA512

3399b1696380b13a0797d52df7aef51c03e92cba9fb4b12477fa9a5b69adbf258e5d7609369282f36af4e7ccd1a4a2ee96ebfbcb198565bc8afebbbbad64db52
SSDEEP

6144:lcNYk1yuwEDBum3qYWnl0pd0EX3Zq2b6wfIDYm0PHQ:lcWkbgTYWnYnt/IDYhP

Score

10^/10

darkcomet guest16 discovery evasion persistence rat trojan upx

Malware Config

Extracted

Family

darkcomet

Botnet

Guest16

zadrot077.ddns.net:1604

192.168.1.105:1604

Mutex

DC_MUTEX-XAPUZP1

Attributes

InstallPath
MSDCSC\msdcsc.exe
gencode
7Tp31A087dlB
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
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:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe

Sets file to hidden 1 TTPs 2 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

pid	Process
2296	attrib.exe
2292	attrib.exe

Executes dropped EXE 1 IoCs

pid	Process
2304	msdcsc.exe

Loads dropped DLL 2 IoCs

pid	Process
1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe
1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.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-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicroUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\MSDCSC\\msdcsc.exe"	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe

UPX packed file 10 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1556-0-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/files/0x0009000000016b47-5.dat	upx
behavioral1/memory/2304-13-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/1556-55-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2304-56-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2304-60-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2304-62-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2304-64-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2304-66-0x0000000000400000-0x00000000004B7000-memory.dmp	upx
behavioral1/memory/2304-68-0x0000000000400000-0x00000000004B7000-memory.dmp	upx

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 7 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	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	notepad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msdcsc.exe

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeIncreaseQuotaPrivilege	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe
Token: SeSecurityPrivilege	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe
Token: SeTakeOwnershipPrivilege	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe
Token: SeLoadDriverPrivilege	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe
Token: SeSystemProfilePrivilege	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe
Token: SeSystemtimePrivilege	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe
Token: SeProfSingleProcessPrivilege	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe
Token: SeIncBasePriorityPrivilege	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe
Token: SeCreatePagefilePrivilege	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe
Token: SeBackupPrivilege	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe
Token: SeRestorePrivilege	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe
Token: SeShutdownPrivilege	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe
Token: SeDebugPrivilege	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe
Token: SeSystemEnvironmentPrivilege	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe
Token: SeChangeNotifyPrivilege	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe
Token: SeRemoteShutdownPrivilege	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe
Token: SeUndockPrivilege	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe
Token: SeManageVolumePrivilege	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe
Token: SeImpersonatePrivilege	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe
Token: SeCreateGlobalPrivilege	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe
Token: 33	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe
Token: 34	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe
Token: 35	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe
Token: SeIncreaseQuotaPrivilege	2304	msdcsc.exe
Token: SeSecurityPrivilege	2304	msdcsc.exe
Token: SeTakeOwnershipPrivilege	2304	msdcsc.exe
Token: SeLoadDriverPrivilege	2304	msdcsc.exe
Token: SeSystemProfilePrivilege	2304	msdcsc.exe
Token: SeSystemtimePrivilege	2304	msdcsc.exe
Token: SeProfSingleProcessPrivilege	2304	msdcsc.exe
Token: SeIncBasePriorityPrivilege	2304	msdcsc.exe
Token: SeCreatePagefilePrivilege	2304	msdcsc.exe
Token: SeBackupPrivilege	2304	msdcsc.exe
Token: SeRestorePrivilege	2304	msdcsc.exe
Token: SeShutdownPrivilege	2304	msdcsc.exe
Token: SeDebugPrivilege	2304	msdcsc.exe
Token: SeSystemEnvironmentPrivilege	2304	msdcsc.exe
Token: SeChangeNotifyPrivilege	2304	msdcsc.exe
Token: SeRemoteShutdownPrivilege	2304	msdcsc.exe
Token: SeUndockPrivilege	2304	msdcsc.exe
Token: SeManageVolumePrivilege	2304	msdcsc.exe
Token: SeImpersonatePrivilege	2304	msdcsc.exe
Token: SeCreateGlobalPrivilege	2304	msdcsc.exe
Token: 33	2304	msdcsc.exe
Token: 34	2304	msdcsc.exe
Token: 35	2304	msdcsc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2304	msdcsc.exe

Suspicious use of WriteProcessMemory 43 IoCs

description	pid	Process	procid_target
PID 1556 wrote to memory of 2676	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe	30
PID 1556 wrote to memory of 2676	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe	30
PID 1556 wrote to memory of 2676	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe	30
PID 1556 wrote to memory of 2676	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe	30
PID 1556 wrote to memory of 904	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe	31
PID 1556 wrote to memory of 904	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe	31
PID 1556 wrote to memory of 904	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe	31
PID 1556 wrote to memory of 904	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe	31
PID 2676 wrote to memory of 2292	2676	cmd.exe	34
PID 2676 wrote to memory of 2292	2676	cmd.exe	34
PID 2676 wrote to memory of 2292	2676	cmd.exe	34
PID 2676 wrote to memory of 2292	2676	cmd.exe	34
PID 1556 wrote to memory of 2304	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe	36
PID 1556 wrote to memory of 2304	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe	36
PID 1556 wrote to memory of 2304	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe	36
PID 1556 wrote to memory of 2304	1556	23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe	36
PID 904 wrote to memory of 2296	904	cmd.exe	35
PID 904 wrote to memory of 2296	904	cmd.exe	35
PID 904 wrote to memory of 2296	904	cmd.exe	35
PID 904 wrote to memory of 2296	904	cmd.exe	35
PID 2304 wrote to memory of 1232	2304	msdcsc.exe	37
PID 2304 wrote to memory of 1232	2304	msdcsc.exe	37
PID 2304 wrote to memory of 1232	2304	msdcsc.exe	37
PID 2304 wrote to memory of 1232	2304	msdcsc.exe	37
PID 2304 wrote to memory of 1232	2304	msdcsc.exe	37
PID 2304 wrote to memory of 1232	2304	msdcsc.exe	37
PID 2304 wrote to memory of 1232	2304	msdcsc.exe	37
PID 2304 wrote to memory of 1232	2304	msdcsc.exe	37
PID 2304 wrote to memory of 1232	2304	msdcsc.exe	37
PID 2304 wrote to memory of 1232	2304	msdcsc.exe	37
PID 2304 wrote to memory of 1232	2304	msdcsc.exe	37
PID 2304 wrote to memory of 1232	2304	msdcsc.exe	37
PID 2304 wrote to memory of 1232	2304	msdcsc.exe	37
PID 2304 wrote to memory of 1232	2304	msdcsc.exe	37
PID 2304 wrote to memory of 1232	2304	msdcsc.exe	37
PID 2304 wrote to memory of 1232	2304	msdcsc.exe	37
PID 2304 wrote to memory of 1232	2304	msdcsc.exe	37
PID 2304 wrote to memory of 1232	2304	msdcsc.exe	37
PID 2304 wrote to memory of 1232	2304	msdcsc.exe	37
PID 2304 wrote to memory of 1232	2304	msdcsc.exe	37
PID 2304 wrote to memory of 1232	2304	msdcsc.exe	37
PID 2304 wrote to memory of 1232	2304	msdcsc.exe	37
PID 2304 wrote to memory of 1232	2304	msdcsc.exe	37

Views/modifies file attributes 1 TTPs 2 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2296	attrib.exe
2292	attrib.exe

C:\Users\Admin\AppData\Local\Temp\23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe
"C:\Users\Admin\AppData\Local\Temp\23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1556
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp\23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2676
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp\23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264N.exe" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:2292
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /k attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:904
- - C:\Windows\SysWOW64\attrib.exe
    attrib "C:\Users\Admin\AppData\Local\Temp" +s +h
    3⤵
    - Sets file to hidden
    - System Location Discovery: System Language Discovery
    - Views/modifies file attributes
    PID:2296
- C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe
  "C:\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2304
- - C:\Windows\SysWOW64\notepad.exe
    notepad
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1232

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

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

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

\Users\Admin\AppData\Local\Temp\MSDCSC\msdcsc.exe

Filesize
252KB

MD5
3e2d8dc667ca1f54e598579a058cae50

SHA1
7ba1170587bd92871fe5d231f84eb299bd028048

SHA256
23e1ceefaa80c5e560dcfe6dc5f9e02f508a8bf7364c349b716711539c210264

SHA512
3399b1696380b13a0797d52df7aef51c03e92cba9fb4b12477fa9a5b69adbf258e5d7609369282f36af4e7ccd1a4a2ee96ebfbcb198565bc8afebbbbad64db52

Download Submit
memory/1232-54-0x0000000000200000-0x0000000000201000-memory.dmp

Filesize
4KB

Download
memory/1232-16-0x00000000000C0000-0x00000000000C1000-memory.dmp

Filesize
4KB

Download
memory/1556-1-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/1556-55-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1556-0-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/1556-12-0x00000000036F0000-0x00000000037A7000-memory.dmp

Filesize
732KB

Download
memory/2304-13-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2304-14-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2304-56-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2304-58-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/2304-60-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2304-62-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2304-64-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2304-66-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download
memory/2304-68-0x0000000000400000-0x00000000004B7000-memory.dmp

Filesize
732KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads