edcf3e3690b274df803bad164ea4aa4016ae8750b8350483b73dd198e79764d3

General

Target

edcf3e3690b274df803bad164ea4aa4016ae8750b8350483b73dd198e79764d3.exe
Size

81KB
MD5

5fb65864aa81e256ee4a50cefdf2d086
SHA1

48ec49aa41839205e8bef59d235266093be2d276
SHA256

edcf3e3690b274df803bad164ea4aa4016ae8750b8350483b73dd198e79764d3
SHA512

8b098dfe5e1dcfeb0378c9cb026e5b1f873377b6d8ff6f14aaba16cbe372cdc4ecfc376a4384e4420a2e0190c80a4ee4c11c2779648e86bed38edcc3a99700bd
SSDEEP

1536:abSshapMJgKJUuxGmfJPtOgqm1s/XZSWcH7:K25KJFjfJPtOgqm2/XZX6

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2788	winlgon.exe

Loads dropped DLL 9 IoCs

pid	Process
2716	edcf3e3690b274df803bad164ea4aa4016ae8750b8350483b73dd198e79764d3.exe
2716	edcf3e3690b274df803bad164ea4aa4016ae8750b8350483b73dd198e79764d3.exe
2732	WerFault.exe
2732	WerFault.exe
2732	WerFault.exe
2732	WerFault.exe
2732	WerFault.exe
2732	WerFault.exe
2732	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"	edcf3e3690b274df803bad164ea4aa4016ae8750b8350483b73dd198e79764d3.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows\CurrentVersion\Run\winlgon.exe = "c:\\users\\admin\\appdata\\local\\temp\\winlgon.exe"	edcf3e3690b274df803bad164ea4aa4016ae8750b8350483b73dd198e79764d3.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2732	2788	WerFault.exe	30
2148	2716	WerFault.exe	29

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	edcf3e3690b274df803bad164ea4aa4016ae8750b8350483b73dd198e79764d3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winlgon.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2716	edcf3e3690b274df803bad164ea4aa4016ae8750b8350483b73dd198e79764d3.exe
2788	winlgon.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2716 wrote to memory of 2788	2716	edcf3e3690b274df803bad164ea4aa4016ae8750b8350483b73dd198e79764d3.exe	30
PID 2716 wrote to memory of 2788	2716	edcf3e3690b274df803bad164ea4aa4016ae8750b8350483b73dd198e79764d3.exe	30
PID 2716 wrote to memory of 2788	2716	edcf3e3690b274df803bad164ea4aa4016ae8750b8350483b73dd198e79764d3.exe	30
PID 2716 wrote to memory of 2788	2716	edcf3e3690b274df803bad164ea4aa4016ae8750b8350483b73dd198e79764d3.exe	30
PID 2788 wrote to memory of 2732	2788	winlgon.exe	31
PID 2788 wrote to memory of 2732	2788	winlgon.exe	31
PID 2788 wrote to memory of 2732	2788	winlgon.exe	31
PID 2788 wrote to memory of 2732	2788	winlgon.exe	31
PID 2716 wrote to memory of 2148	2716	edcf3e3690b274df803bad164ea4aa4016ae8750b8350483b73dd198e79764d3.exe	33
PID 2716 wrote to memory of 2148	2716	edcf3e3690b274df803bad164ea4aa4016ae8750b8350483b73dd198e79764d3.exe	33
PID 2716 wrote to memory of 2148	2716	edcf3e3690b274df803bad164ea4aa4016ae8750b8350483b73dd198e79764d3.exe	33
PID 2716 wrote to memory of 2148	2716	edcf3e3690b274df803bad164ea4aa4016ae8750b8350483b73dd198e79764d3.exe	33

C:\Users\Admin\AppData\Local\Temp\edcf3e3690b274df803bad164ea4aa4016ae8750b8350483b73dd198e79764d3.exe
"C:\Users\Admin\AppData\Local\Temp\edcf3e3690b274df803bad164ea4aa4016ae8750b8350483b73dd198e79764d3.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2716
- \??\c:\users\admin\appdata\local\temp\winlgon.exe
  c:\users\admin\appdata\local\temp\winlgon.exe
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2788
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2788 -s 256
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:2732
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2716 -s 204
  2⤵
  - Program crash
  PID:2148

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
81KB

MD5
cb73c92c371650ee2cbbc7e6d55b8460

SHA1
2eb714fbabef274a95d3db0a00754429181cf7c9

SHA256
71c37539abd63a321a296381d9586ab1035d46c845fcbf8521699766649ec25d

SHA512
4b8dbe27078b7fe5a19acc2a732cb82e87ced5ba2affe655a92f6c44c4f57c1ea78967352226404a889019a62f0028f4963917637881ede6ae5a06a906ba72df

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads