15a1022a41f3d9fe857581525b95d0367e4172e63d907555c6ad12c9fb4a97d1

Analysis

max time kernel
141s
max time network
124s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
30/12/2023, 05:35

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General

Target

101d00e77b48685bc02c1ff9672e1e94.exe
Size

43KB
MD5

101d00e77b48685bc02c1ff9672e1e94
SHA1

7ce620be6bb66cb76a37e71d6aec55c21c9dd109
SHA256

15a1022a41f3d9fe857581525b95d0367e4172e63d907555c6ad12c9fb4a97d1
SHA512

cefe82671439fb6b68bc45d9057328a782ab557e7720727fb5266fc90a11829e921bb9cc7e007872fc8adbbef0ac62c51998c20f91c4adf68ac69163cb616e8e
SSDEEP

768:q9JC8gV4JXx/lYYNUirN9X0kAxWSEsRAVA2blscyJu1PZ8f8E5yYqdVcQh:q9JyVYio9X0AbOAVLscSmPSf822

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,"	101d00e77b48685bc02c1ff9672e1e94.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\ntos.exe	101d00e77b48685bc02c1ff9672e1e94.exe
File created	C:\Windows\SysWOW64\ntos.exe	101d00e77b48685bc02c1ff9672e1e94.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2428	101d00e77b48685bc02c1ff9672e1e94.exe
2428	101d00e77b48685bc02c1ff9672e1e94.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2428	101d00e77b48685bc02c1ff9672e1e94.exe

C:\Users\Admin\AppData\Local\Temp\101d00e77b48685bc02c1ff9672e1e94.exe
"C:\Users\Admin\AppData\Local\Temp\101d00e77b48685bc02c1ff9672e1e94.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2428

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/2428-0-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2428-2-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2428-1-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/2428-7-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download