f3a9aba5ca115c38112b02ef26ff918f4cc2c6bfb4c974a83389c1de0f4ebac0

Analysis

max time kernel
133s
max time network
102s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
24/05/2024, 05:17

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

f3a9aba5ca115c38112b02ef26ff918f4cc2c6bfb4c974a83389c1de0f4ebac0.exe
Size

76KB
MD5

85d4d5aff333dbcaae80c922709b12c4
SHA1

1166d5689027d3fb61dacd710cbd574110583957
SHA256

f3a9aba5ca115c38112b02ef26ff918f4cc2c6bfb4c974a83389c1de0f4ebac0
SHA512

87da1bb88a6136b71615455ae4ec14f799818f2a32fdec9916048b3b238529cb145c638ac2c0a58eb397813a40104bff89f7fc742e23f8b65edf87fde0473378
SSDEEP

1536:abSshapMJgKJUuxGmfJPtOgqm1s/XZSWcHM:K25KJFjfJPtOgqm2/XZXl

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1224	winlgon.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\winlgon.exe = "c:\\users\\admin\\appdata\\local\\temp\\winlgon.exe"	f3a9aba5ca115c38112b02ef26ff918f4cc2c6bfb4c974a83389c1de0f4ebac0.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winlgon.exe = "c:\\users\\admin\\appdata\\local\\temp\\winlgon.exe"	f3a9aba5ca115c38112b02ef26ff918f4cc2c6bfb4c974a83389c1de0f4ebac0.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
1404	1224	WerFault.exe	85
2744	4504	WerFault.exe	84

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4504	f3a9aba5ca115c38112b02ef26ff918f4cc2c6bfb4c974a83389c1de0f4ebac0.exe
1224	winlgon.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4504 wrote to memory of 1224	4504	f3a9aba5ca115c38112b02ef26ff918f4cc2c6bfb4c974a83389c1de0f4ebac0.exe	85
PID 4504 wrote to memory of 1224	4504	f3a9aba5ca115c38112b02ef26ff918f4cc2c6bfb4c974a83389c1de0f4ebac0.exe	85
PID 4504 wrote to memory of 1224	4504	f3a9aba5ca115c38112b02ef26ff918f4cc2c6bfb4c974a83389c1de0f4ebac0.exe	85

C:\Users\Admin\AppData\Local\Temp\f3a9aba5ca115c38112b02ef26ff918f4cc2c6bfb4c974a83389c1de0f4ebac0.exe
"C:\Users\Admin\AppData\Local\Temp\f3a9aba5ca115c38112b02ef26ff918f4cc2c6bfb4c974a83389c1de0f4ebac0.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4504
- \??\c:\users\admin\appdata\local\temp\winlgon.exe
  c:\users\admin\appdata\local\temp\winlgon.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  PID:1224
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1224 -s 688
    3⤵
    - Program crash
    PID:1404
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4504 -s 572
  2⤵
  - Program crash
  PID:2744

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1224 -ip 1224
1⤵
PID:4328

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 4504 -ip 4504
1⤵
PID:1156

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

\??\c:\users\admin\appdata\local\temp\winlgon.exe

Filesize
76KB

MD5
5c77e1197e03e995a44776816640ae90

SHA1
1b5666d5750fa912cffb99c41ea7ba83425c4abd

SHA256
db4d1ab794a4a22f224eded0f60f5a078d560f8de12d94378f55c0c34f52a1ed

SHA512
2c6eb7243e866ae214029cbad012a3607cedd2fabf82ce0b5eb61255f0298fd72459814907afff3fc32362ef14d7edfa300be2331dcf02873bf79dbc8dbfc78a

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads