8db7aa846a4a55d92495da7bd4750e74245bc8e919aef72053e3d1e8314c1903

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
09-07-2024 01:51

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General

Target

8db7aa846a4a55d92495da7bd4750e74245bc8e919aef72053e3d1e8314c1903.exe
Size

78KB
MD5

112215cb97b5f3c64c402c63b9b50e7d
SHA1

38b7bdfb722c6d55acadcdc3ef50fd53ea9e8293
SHA256

8db7aa846a4a55d92495da7bd4750e74245bc8e919aef72053e3d1e8314c1903
SHA512

0274a80f3a8471954eefe54b8d28e243a0c626e84c7384ebc4bb7026b244f3c163d49c81c88c28161d56ec5f3fde533bc704be844aca4920e56c609ddaadd544
SSDEEP

1536:abSshapMJgKJUuxGmfJPtOgqm1s/XZSWcH4:K25KJFjfJPtOgqm2/XZXR

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2676	winlgon.exe

Loads dropped DLL 9 IoCs

pid	Process
1832	8db7aa846a4a55d92495da7bd4750e74245bc8e919aef72053e3d1e8314c1903.exe
1832	8db7aa846a4a55d92495da7bd4750e74245bc8e919aef72053e3d1e8314c1903.exe
2780	WerFault.exe
2780	WerFault.exe
2780	WerFault.exe
2780	WerFault.exe
2780	WerFault.exe
2780	WerFault.exe
2780	WerFault.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"	8db7aa846a4a55d92495da7bd4750e74245bc8e919aef72053e3d1e8314c1903.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Windows\CurrentVersion\Run\winlgon.exe = "c:\\users\\admin\\appdata\\local\\temp\\winlgon.exe"	8db7aa846a4a55d92495da7bd4750e74245bc8e919aef72053e3d1e8314c1903.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2780	2676	WerFault.exe	30
2532	1832	WerFault.exe	29

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1832	8db7aa846a4a55d92495da7bd4750e74245bc8e919aef72053e3d1e8314c1903.exe
2676	winlgon.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1832 wrote to memory of 2676	1832	8db7aa846a4a55d92495da7bd4750e74245bc8e919aef72053e3d1e8314c1903.exe	30
PID 1832 wrote to memory of 2676	1832	8db7aa846a4a55d92495da7bd4750e74245bc8e919aef72053e3d1e8314c1903.exe	30
PID 1832 wrote to memory of 2676	1832	8db7aa846a4a55d92495da7bd4750e74245bc8e919aef72053e3d1e8314c1903.exe	30
PID 1832 wrote to memory of 2676	1832	8db7aa846a4a55d92495da7bd4750e74245bc8e919aef72053e3d1e8314c1903.exe	30
PID 2676 wrote to memory of 2780	2676	winlgon.exe	31
PID 2676 wrote to memory of 2780	2676	winlgon.exe	31
PID 2676 wrote to memory of 2780	2676	winlgon.exe	31
PID 2676 wrote to memory of 2780	2676	winlgon.exe	31
PID 1832 wrote to memory of 2532	1832	8db7aa846a4a55d92495da7bd4750e74245bc8e919aef72053e3d1e8314c1903.exe	32
PID 1832 wrote to memory of 2532	1832	8db7aa846a4a55d92495da7bd4750e74245bc8e919aef72053e3d1e8314c1903.exe	32
PID 1832 wrote to memory of 2532	1832	8db7aa846a4a55d92495da7bd4750e74245bc8e919aef72053e3d1e8314c1903.exe	32
PID 1832 wrote to memory of 2532	1832	8db7aa846a4a55d92495da7bd4750e74245bc8e919aef72053e3d1e8314c1903.exe	32

C:\Users\Admin\AppData\Local\Temp\8db7aa846a4a55d92495da7bd4750e74245bc8e919aef72053e3d1e8314c1903.exe
"C:\Users\Admin\AppData\Local\Temp\8db7aa846a4a55d92495da7bd4750e74245bc8e919aef72053e3d1e8314c1903.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1832
- \??\c:\users\admin\appdata\local\temp\winlgon.exe
  c:\users\admin\appdata\local\temp\winlgon.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2676
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2676 -s 256
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:2780
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1832 -s 204
  2⤵
  - Program crash
  PID:2532

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\winlgon.exe

Filesize
78KB

MD5
3951ad481e4095d098a65ce794779a5a

SHA1
7d7666e8ab404a5d5fe26454f5bb58284120ef0f

SHA256
9c096e49ac958eefa1b5b53e23b0f632e703cd11e0f5e644954023abb97643bb

SHA512
7f09ef80efe0eab0c00e88dc14da14c5fdf3cec104625a7f9c443d7a9fa586c2f19f3b3dac9d2b98b88637e28cd78157597e6292fdb006ab7a27941fd3d13a70

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads