53f95d374ced8be3217420dd197256d37132f38512bfdd15898faea2a7c85424

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
22-05-2024 21:45

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General

Target

53f95d374ced8be3217420dd197256d37132f38512bfdd15898faea2a7c85424.exe
Size

157KB
MD5

f065a49b98006266d3c011477b78c8d5
SHA1

aec187b78c78a8ca73aa0e169fa1f15b6587c0aa
SHA256

53f95d374ced8be3217420dd197256d37132f38512bfdd15898faea2a7c85424
SHA512

8f6bb966fb2104ea2c59d678a6f83fb5553e335f18232413aec97d6cfbae3fbbc7335aac5f9e3a63bba9c4b7560362f91dca8d48f69014fa9622313dc37a32b0
SSDEEP

3072:YeojyYsAq/C3RCzgJHvNA1PpYfFL6zU+BEfi:7ojjqahUSPe1SZ+h

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\userinit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\apppatch\\svchost.exe,"	svchost.exe

Executes dropped EXE 1 IoCs

Processes:

svchost.exe

pid process

2176 svchost.exe

pid	process
2176	svchost.exe

Modifies WinLogon 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

Processes:

53f95d374ced8be3217420dd197256d37132f38512bfdd15898faea2a7c85424.exesvchost.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\fa0c025 = "C:\\Windows\\apppatch\\svchost.exe"	53f95d374ced8be3217420dd197256d37132f38512bfdd15898faea2a7c85424.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\fa0c025 = "C:\\Windows\\apppatch\\svchost.exe"	svchost.exe

Drops file in Windows directory 2 IoCs

Processes:

53f95d374ced8be3217420dd197256d37132f38512bfdd15898faea2a7c85424.exe

description	ioc	process
File created	C:\Windows\apppatch\svchost.exe	53f95d374ced8be3217420dd197256d37132f38512bfdd15898faea2a7c85424.exe
File opened for modification	C:\Windows\apppatch\svchost.exe	53f95d374ced8be3217420dd197256d37132f38512bfdd15898faea2a7c85424.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

svchost.exe

pid process

2176 svchost.exe
2176 svchost.exe
Suspicious behavior: RenamesItself 1 IoCs

Processes:

53f95d374ced8be3217420dd197256d37132f38512bfdd15898faea2a7c85424.exe

pid process

4880 53f95d374ced8be3217420dd197256d37132f38512bfdd15898faea2a7c85424.exe

pid	process
2176	svchost.exe
2176	svchost.exe

pid	process
4880	53f95d374ced8be3217420dd197256d37132f38512bfdd15898faea2a7c85424.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

53f95d374ced8be3217420dd197256d37132f38512bfdd15898faea2a7c85424.exe

description	pid	process	target process
PID 4880 wrote to memory of 2176	4880	53f95d374ced8be3217420dd197256d37132f38512bfdd15898faea2a7c85424.exe	svchost.exe
PID 4880 wrote to memory of 2176	4880	53f95d374ced8be3217420dd197256d37132f38512bfdd15898faea2a7c85424.exe	svchost.exe
PID 4880 wrote to memory of 2176	4880	53f95d374ced8be3217420dd197256d37132f38512bfdd15898faea2a7c85424.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\53f95d374ced8be3217420dd197256d37132f38512bfdd15898faea2a7c85424.exe
"C:\Users\Admin\AppData\Local\Temp\53f95d374ced8be3217420dd197256d37132f38512bfdd15898faea2a7c85424.exe"
1⤵
- Modifies WinLogon
- Drops file in Windows directory
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:4880

C:\Windows\apppatch\svchost.exe
"C:\Windows\apppatch\svchost.exe"
2⤵
- Modifies WinLogon for persistence
- Executes dropped EXE
- Modifies WinLogon
- Suspicious behavior: EnumeratesProcesses
PID:2176

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Windows\apppatch\svchost.exe
Filesize
157KB

MD5
cd7b51ff971a03fa68c46b45fb3dd497

SHA1
fc3cf41aa28a3b84f38c70a0546d3bdf0f12c202

SHA256
6e94555a6a7d535760147424fcf0ebf9b25f7a3d1c427d3ff1b916761cc5b5ea

SHA512
f3aca038edaabec3b4dcd2d563857123a3470b6af067e79a8d98469f8b9724845421a7b32c75ca867d37eaa0c1f44b51a30d36c94e32985777bb7a386ba35e2c

Download Submit
memory/2176-10-0x00000000029B0000-0x00000000029F6000-memory.dmp

Filesize
280KB

Download
memory/2176-11-0x0000000002D40000-0x0000000002D8A000-memory.dmp

Filesize
296KB

Download
memory/2176-15-0x0000000002D40000-0x0000000002D8A000-memory.dmp

Filesize
296KB

Download
memory/2176-13-0x0000000002D40000-0x0000000002D8A000-memory.dmp

Filesize
296KB

Download
memory/2176-18-0x0000000002D40000-0x0000000002D8A000-memory.dmp

Filesize
296KB

Download
memory/4880-8-0x00000000009B0000-0x00000000009E0000-memory.dmp

Filesize
192KB

Download