751e90fcdac9bd6b57d6a967dc711d4dcad5370f458f5be84a3fca3ba384ed35

Analysis

max time kernel
140s
max time network
119s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
31/12/2023, 00:49

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General

Target

223cc720b617b1b230aa8203d92abf4e.exe
Size

48KB
MD5

223cc720b617b1b230aa8203d92abf4e
SHA1

57bd969d696cc80b3d0911d05cd3b61eef8bd766
SHA256

751e90fcdac9bd6b57d6a967dc711d4dcad5370f458f5be84a3fca3ba384ed35
SHA512

a2aa2c7cd179620fa5c795781dd9d0d52613b13364b0a510e32eb2e871aeeea5977fb3270dc7e9e75ee8efeb5c34b47006654e19b5efbe32dcd2b6daf6fda7bd
SSDEEP

1536:feuO6swHL7drtdrcj3p4heI0Wt+NjpLD0Fihce:feuO6pfdrt5VT0tPLDYRe

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,"	223cc720b617b1b230aa8203d92abf4e.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\ntos.exe	223cc720b617b1b230aa8203d92abf4e.exe
File created	C:\Windows\SysWOW64\ntos.exe	223cc720b617b1b230aa8203d92abf4e.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2344	223cc720b617b1b230aa8203d92abf4e.exe
2344	223cc720b617b1b230aa8203d92abf4e.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2344	223cc720b617b1b230aa8203d92abf4e.exe

C:\Users\Admin\AppData\Local\Temp\223cc720b617b1b230aa8203d92abf4e.exe
"C:\Users\Admin\AppData\Local\Temp\223cc720b617b1b230aa8203d92abf4e.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2344

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/2344-0-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/2344-4-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download
memory/2344-1-0x0000000000400000-0x0000000000427000-memory.dmp

Filesize
156KB

Download