cfe3d835275ab7d9317168a45294687e18004382e3af661bf8fc86c3446e12a8

General

Target

5dc11ec3ef50428adbaddfe4b66c8b9c.exe
Size

2.5MB
MD5

5dc11ec3ef50428adbaddfe4b66c8b9c
SHA1

d1ec0d9a75326ff45cb0f9b0690c52ac09b97623
SHA256

cfe3d835275ab7d9317168a45294687e18004382e3af661bf8fc86c3446e12a8
SHA512

41e7bc131d06b83a286e9482a3b38aa514cefa631baecfcaad22febb378be3232b3ef31b788a0fe7139ae49056b75d5c319069ff63da5483dacdc6ba29c731bd
SSDEEP

24576:t8+kEW1dDBDtIiz++sprV6zJqKs/SjhDV:tQEWvZ9+Z69mkVV

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe C:\\Windows\\system32\\fservice.exe"	5dc11ec3ef50428adbaddfe4b66c8b9c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe C:\\Windows\\system32\\fservice.exe"	services.exe

Adds policy Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	5dc11ec3ef50428adbaddfe4b66c8b9c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\DirectX For Microsoft® Windows = "C:\\Windows\\system32\\fservice.exe"	5dc11ec3ef50428adbaddfe4b66c8b9c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	services.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\DirectX For Microsoft® Windows = "C:\\Windows\\system32\\fservice.exe"	services.exe

Modifies Installed Components in the registry 2 TTPs 5 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}	5dc11ec3ef50428adbaddfe4b66c8b9c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\	5dc11ec3ef50428adbaddfe4b66c8b9c.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\StubPath = "C:\\Windows\\system\\sservice.exe"	5dc11ec3ef50428adbaddfe4b66c8b9c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\	services.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}\StubPath = "C:\\Windows\\system\\sservice.exe"	services.exe

Executes dropped EXE 2 IoCs

pid	Process
3892	fservice.exe
2204	services.exe

Loads dropped DLL 5 IoCs

pid	Process
2204	services.exe
2204	services.exe
2204	services.exe
3892	fservice.exe
1684	5dc11ec3ef50428adbaddfe4b66c8b9c.exe

Modifies WinLogon 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\	5dc11ec3ef50428adbaddfe4b66c8b9c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\	services.exe

Drops file in System32 directory 7 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\fservice.exe	fservice.exe
File created	C:\Windows\SysWOW64\winkey.dll	services.exe
File created	C:\Windows\SysWOW64\reginv.dll	services.exe
File created	C:\Windows\SysWOW64\fservice.exe	services.exe
File created	C:\Windows\SysWOW64\fservice.exe	5dc11ec3ef50428adbaddfe4b66c8b9c.exe
File opened for modification	C:\Windows\SysWOW64\fservice.exe	5dc11ec3ef50428adbaddfe4b66c8b9c.exe
File created	C:\Windows\SysWOW64\fservice.exe	fservice.exe

Drops file in Windows directory 7 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system\sservice.exe	5dc11ec3ef50428adbaddfe4b66c8b9c.exe
File created	C:\Windows\services.exe	fservice.exe
File opened for modification	C:\Windows\services.exe	fservice.exe
File created	C:\Windows\system\sservice.exe	fservice.exe
File opened for modification	C:\Windows\system\sservice.exe	fservice.exe
File created	C:\Windows\system\sservice.exe	services.exe
File created	C:\Windows\system\sservice.exe	5dc11ec3ef50428adbaddfe4b66c8b9c.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2204	services.exe
2204	services.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1684 wrote to memory of 3892	1684	5dc11ec3ef50428adbaddfe4b66c8b9c.exe	21
PID 1684 wrote to memory of 3892	1684	5dc11ec3ef50428adbaddfe4b66c8b9c.exe	21
PID 1684 wrote to memory of 3892	1684	5dc11ec3ef50428adbaddfe4b66c8b9c.exe	21
PID 3892 wrote to memory of 2204	3892	fservice.exe	18
PID 3892 wrote to memory of 2204	3892	fservice.exe	18
PID 3892 wrote to memory of 2204	3892	fservice.exe	18
PID 1684 wrote to memory of 4856	1684	5dc11ec3ef50428adbaddfe4b66c8b9c.exe	20
PID 1684 wrote to memory of 4856	1684	5dc11ec3ef50428adbaddfe4b66c8b9c.exe	20
PID 1684 wrote to memory of 4856	1684	5dc11ec3ef50428adbaddfe4b66c8b9c.exe	20

C:\Users\Admin\AppData\Local\Temp\5dc11ec3ef50428adbaddfe4b66c8b9c.exe
"C:\Users\Admin\AppData\Local\Temp\5dc11ec3ef50428adbaddfe4b66c8b9c.exe"
1⤵
- Modifies WinLogon for persistence
- Adds policy Run key to start application
- Modifies Installed Components in the registry
- Loads dropped DLL
- Modifies WinLogon
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1684
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Local\Temp\5dc11ec3ef50428adbaddfe4b66c8b9c.exe.bat
  2⤵
  PID:4856
- C:\Windows\SysWOW64\fservice.exe
  C:\Windows\system32\fservice.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - Drops file in Windows directory
  - Suspicious use of WriteProcessMemory
  PID:3892

C:\Windows\services.exe
C:\Windows\services.exe -XP
1⤵
- Modifies WinLogon for persistence
- Adds policy Run key to start application
- Modifies Installed Components in the registry
- Executes dropped EXE
- Loads dropped DLL
- Modifies WinLogon
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
PID:2204

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

4

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Winlogon Helper DLL

2

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

4

T1547

Registry Run Keys / Startup Folder

2

T1547.001

Winlogon Helper DLL

2

T1547.004

Defense Evasion

Modify Registry

4

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1684-1-0x0000000002A50000-0x0000000002B40000-memory.dmp

Filesize
960KB

Download
memory/1684-2-0x0000000003190000-0x0000000003191000-memory.dmp

Filesize
4KB

Download
memory/1684-0-0x0000000000400000-0x0000000000A06000-memory.dmp

Filesize
6.0MB

Download
memory/1684-43-0x0000000002A50000-0x0000000002B40000-memory.dmp

Filesize
960KB

Download
memory/1684-42-0x0000000000400000-0x0000000000A06000-memory.dmp

Filesize
6.0MB

Download
memory/2204-45-0x0000000000400000-0x0000000000A06000-memory.dmp

Filesize
6.0MB

Download
memory/2204-21-0x0000000002AE0000-0x0000000002BD0000-memory.dmp

Filesize
960KB

Download
memory/2204-48-0x0000000003530000-0x0000000003531000-memory.dmp

Filesize
4KB

Download
memory/2204-22-0x0000000003530000-0x0000000003531000-memory.dmp

Filesize
4KB

Download
memory/2204-46-0x0000000002AE0000-0x0000000002BD0000-memory.dmp

Filesize
960KB

Download
memory/3892-10-0x0000000000400000-0x0000000000A06000-memory.dmp

Filesize
6.0MB

Download
memory/3892-11-0x0000000002A70000-0x0000000002B60000-memory.dmp

Filesize
960KB

Download
memory/3892-12-0x0000000003050000-0x0000000003051000-memory.dmp

Filesize
4KB

Download
memory/3892-40-0x0000000000400000-0x0000000000A06000-memory.dmp

Filesize
6.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads