e6d2b0128f06192646cbf1c17d6e80811cf315d174f6326b64464b5225e14d40

Analysis

max time kernel
140s
max time network
120s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
30/12/2023, 12:23

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General

Target

1868c5675ebf74e1ef2e4bc18ae33a13.exe
Size

51KB
MD5

1868c5675ebf74e1ef2e4bc18ae33a13
SHA1

ee317e72e1489e3a9c2a0d58893d9287d56b1340
SHA256

e6d2b0128f06192646cbf1c17d6e80811cf315d174f6326b64464b5225e14d40
SHA512

9db04912072aa9f098beefaea76d4231b5c234224c45a38e878541e18c78f4e4ce20702645ba0771cd9cbe247954b6b9de775ed51a72e3c9767d2253cfdd02b9
SSDEEP

1536:exzvchUA/yLZBAnyn7guwK+H+p1jITXdD0:e1cB/yMnynV+H+p1UjdD0

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,"	1868c5675ebf74e1ef2e4bc18ae33a13.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\ntos.exe	1868c5675ebf74e1ef2e4bc18ae33a13.exe
File created	C:\Windows\SysWOW64\ntos.exe	1868c5675ebf74e1ef2e4bc18ae33a13.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2820	1868c5675ebf74e1ef2e4bc18ae33a13.exe
2820	1868c5675ebf74e1ef2e4bc18ae33a13.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2820	1868c5675ebf74e1ef2e4bc18ae33a13.exe

C:\Users\Admin\AppData\Local\Temp\1868c5675ebf74e1ef2e4bc18ae33a13.exe
"C:\Users\Admin\AppData\Local\Temp\1868c5675ebf74e1ef2e4bc18ae33a13.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2820

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/2820-3-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/2820-0-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download