7aa53dc8a80631f7ad7998797b51b3c593c915c6d2f31ca319980e6019912d5e

Analysis

max time kernel
141s
max time network
123s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
06/01/2024, 09:58

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General

Target

3ceaf7d6487cfafe981cbc8cf3a8c146.exe
Size

43KB
MD5

3ceaf7d6487cfafe981cbc8cf3a8c146
SHA1

8cd29bfce3c570ed5582c66a87dc41c19739146c
SHA256

7aa53dc8a80631f7ad7998797b51b3c593c915c6d2f31ca319980e6019912d5e
SHA512

b296f31bdcf222ab475c86c20eac7d4b8ff9c95c3d762185746d6cfdb3e48c504cb43c45bc86d076075a2df2fd97ba9bdeb16d146cb0ca36f71c90e1e0fa7439
SSDEEP

768:HZWb+1bIFKd9diis59ASxhzNa5EFD7zwyWjjgJWht+u:HAS1b1Q56SrpwMPzw7

Score

10^/10

persistence

Malware Config

Signatures

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\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\userinit = "userinit.exe,C:\\Windows\\system32\\ntos.exe,"	3ceaf7d6487cfafe981cbc8cf3a8c146.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\ntos.exe	3ceaf7d6487cfafe981cbc8cf3a8c146.exe
File created	C:\Windows\SysWOW64\ntos.exe	3ceaf7d6487cfafe981cbc8cf3a8c146.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2228	3ceaf7d6487cfafe981cbc8cf3a8c146.exe
2228	3ceaf7d6487cfafe981cbc8cf3a8c146.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2228	3ceaf7d6487cfafe981cbc8cf3a8c146.exe

C:\Users\Admin\AppData\Local\Temp\3ceaf7d6487cfafe981cbc8cf3a8c146.exe
"C:\Users\Admin\AppData\Local\Temp\3ceaf7d6487cfafe981cbc8cf3a8c146.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2228

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2228-0-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2228-1-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2228-5-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download
memory/2228-4-0x0000000000400000-0x0000000000424000-memory.dmp

Filesize
144KB

Download