5f7154bcf35a59990d01de8daf92f0834e4b84b3ffb71e3791a0e68fe60cee08

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
26-01-2024 06:15

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General

Target

769aa0fd11c5049958c529aaa11fe17e.exe
Size

500KB
MD5

769aa0fd11c5049958c529aaa11fe17e
SHA1

ab0a595afcb9bf77c50e3cddb4bbbef8fcdc7fff
SHA256

5f7154bcf35a59990d01de8daf92f0834e4b84b3ffb71e3791a0e68fe60cee08
SHA512

e770339b06993f04974335b6da33b263458bbfaa082007434488c98575bb9d74dd6cf1fd877f271720c95bd7f356849da88ea40da29a908ded63bf65656489f4
SSDEEP

12288:mYWwS+VTJMJhjvViaZso1fKyCC2aMhIbbO51ZXL12FSsK:1rS+ShfZsWiy8x6POfZJ8G

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,"	769aa0fd11c5049958c529aaa11fe17e.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\ntos.exe	769aa0fd11c5049958c529aaa11fe17e.exe
File created	C:\Windows\SysWOW64\ntos.exe	769aa0fd11c5049958c529aaa11fe17e.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1380 set thread context of 2600	1380	769aa0fd11c5049958c529aaa11fe17e.exe	28

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2600	769aa0fd11c5049958c529aaa11fe17e.exe
2600	769aa0fd11c5049958c529aaa11fe17e.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2600	769aa0fd11c5049958c529aaa11fe17e.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1380 wrote to memory of 2600	1380	769aa0fd11c5049958c529aaa11fe17e.exe	28
PID 1380 wrote to memory of 2600	1380	769aa0fd11c5049958c529aaa11fe17e.exe	28
PID 1380 wrote to memory of 2600	1380	769aa0fd11c5049958c529aaa11fe17e.exe	28
PID 1380 wrote to memory of 2600	1380	769aa0fd11c5049958c529aaa11fe17e.exe	28
PID 1380 wrote to memory of 2600	1380	769aa0fd11c5049958c529aaa11fe17e.exe	28
PID 1380 wrote to memory of 2600	1380	769aa0fd11c5049958c529aaa11fe17e.exe	28
PID 1380 wrote to memory of 2600	1380	769aa0fd11c5049958c529aaa11fe17e.exe	28
PID 1380 wrote to memory of 2600	1380	769aa0fd11c5049958c529aaa11fe17e.exe	28
PID 1380 wrote to memory of 2600	1380	769aa0fd11c5049958c529aaa11fe17e.exe	28
PID 1380 wrote to memory of 2600	1380	769aa0fd11c5049958c529aaa11fe17e.exe	28

C:\Users\Admin\AppData\Local\Temp\769aa0fd11c5049958c529aaa11fe17e.exe
"C:\Users\Admin\AppData\Local\Temp\769aa0fd11c5049958c529aaa11fe17e.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1380
- C:\Users\Admin\AppData\Local\Temp\769aa0fd11c5049958c529aaa11fe17e.exe
  "C:\Users\Admin\AppData\Local\Temp\769aa0fd11c5049958c529aaa11fe17e.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Drops file in System32 directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2600

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/1380-16-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2600-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2600-2-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2600-7-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2600-10-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2600-12-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2600-0-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2600-17-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2600-4-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2600-18-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2600-19-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2600-20-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2600-22-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2600-23-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/2600-28-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download