28ad6e46e20367d7608d87023d7f50b2efb425b46f0797d1e57d38bdde6b5b9d

Analysis

max time kernel
150s
max time network
118s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
26/12/2023, 03:54 UTC

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General

Target

5216bb522237025747fb9842fd766140.exe
Size

152KB
MD5

5216bb522237025747fb9842fd766140
SHA1

99c6f02c60f09e7baa0a46b387111b599fb9fbd7
SHA256

28ad6e46e20367d7608d87023d7f50b2efb425b46f0797d1e57d38bdde6b5b9d
SHA512

36053ab90193424d6c014017aeaf127c778108ff8d972e662a5040d9c62124c22042d5c195650a1bee183830867dc4b5bcabaac97daed11e3d50be7608d420cb
SSDEEP

3072:k/QMFZvOsi67UvPql3psQl0XD6VIOsHbM2N2eGWYxJ9jTbRfZUh:/MVRUvQ3rXKLbM2cIS9jXRqh

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,"	5216bb522237025747fb9842fd766140.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\ntos.exe	5216bb522237025747fb9842fd766140.exe
File created	C:\Windows\SysWOW64\ntos.exe	5216bb522237025747fb9842fd766140.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2144 set thread context of 3020	2144	5216bb522237025747fb9842fd766140.exe	4

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3020	5216bb522237025747fb9842fd766140.exe
3020	5216bb522237025747fb9842fd766140.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3020	5216bb522237025747fb9842fd766140.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2144 wrote to memory of 3020	2144	5216bb522237025747fb9842fd766140.exe	4
PID 2144 wrote to memory of 3020	2144	5216bb522237025747fb9842fd766140.exe	4
PID 2144 wrote to memory of 3020	2144	5216bb522237025747fb9842fd766140.exe	4
PID 2144 wrote to memory of 3020	2144	5216bb522237025747fb9842fd766140.exe	4
PID 2144 wrote to memory of 3020	2144	5216bb522237025747fb9842fd766140.exe	4
PID 2144 wrote to memory of 3020	2144	5216bb522237025747fb9842fd766140.exe	4
PID 2144 wrote to memory of 3020	2144	5216bb522237025747fb9842fd766140.exe	4
PID 2144 wrote to memory of 3020	2144	5216bb522237025747fb9842fd766140.exe	4
PID 2144 wrote to memory of 3020	2144	5216bb522237025747fb9842fd766140.exe	4

C:\Users\Admin\AppData\Local\Temp\5216bb522237025747fb9842fd766140.exe
"C:\Users\Admin\AppData\Local\Temp\5216bb522237025747fb9842fd766140.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2144
- C:\Users\Admin\AppData\Local\Temp\5216bb522237025747fb9842fd766140.exe
  "C:\Users\Admin\AppData\Local\Temp\5216bb522237025747fb9842fd766140.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3020

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/2144-1-0x0000000000330000-0x0000000000349000-memory.dmp

Filesize
100KB

Download
memory/2144-17-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/2144-4-0x0000000000020000-0x0000000000022000-memory.dmp

Filesize
8KB

Download
memory/2144-0-0x0000000000400000-0x0000000000419000-memory.dmp

Filesize
100KB

Download
memory/3020-5-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3020-7-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3020-10-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3020-13-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3020-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3020-2-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3020-19-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3020-22-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3020-20-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3020-23-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download
memory/3020-26-0x0000000000400000-0x0000000000422000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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