808d7f007b08df177a480dfafd3cb2f8e69a5c9fd467dc66262616aeefad3b4d

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
26/08/2024, 06:03

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General

Target

19405f7736d00f0b061a833dd0ff92e0N.exe
Size

79KB
MD5

19405f7736d00f0b061a833dd0ff92e0
SHA1

14672b911f451db7e91494f18b72e9f5a2134419
SHA256

808d7f007b08df177a480dfafd3cb2f8e69a5c9fd467dc66262616aeefad3b4d
SHA512

a57ed0208c275dd8a5771ad43ca75088f03fd4bfeb3acb55e1f0aaad89e37b3b249903e3e1177eef9ae16114b1211c185687774d4100ade60d9a82c88b48b954
SSDEEP

1536:abSshapMJgKJUuxGmfJPtOgqm1s/XZSWcH5:K25KJFjfJPtOgqm2/XZXg

Score

7^/10

discovery persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2376	winlgon.exe

Loads dropped DLL 9 IoCs

pid	Process
2544	19405f7736d00f0b061a833dd0ff92e0N.exe
2544	19405f7736d00f0b061a833dd0ff92e0N.exe
2528	WerFault.exe
2528	WerFault.exe
2528	WerFault.exe
2528	WerFault.exe
2528	WerFault.exe
2528	WerFault.exe
2528	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"	19405f7736d00f0b061a833dd0ff92e0N.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2257386474-3982792636-3902186748-1000\Software\Microsoft\Windows\CurrentVersion\Run\winlgon.exe = "c:\\users\\admin\\appdata\\local\\temp\\winlgon.exe"	19405f7736d00f0b061a833dd0ff92e0N.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2528	2376	WerFault.exe	31
2688	2544	WerFault.exe	30

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	19405f7736d00f0b061a833dd0ff92e0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winlgon.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2544	19405f7736d00f0b061a833dd0ff92e0N.exe
2376	winlgon.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2544 wrote to memory of 2376	2544	19405f7736d00f0b061a833dd0ff92e0N.exe	31
PID 2544 wrote to memory of 2376	2544	19405f7736d00f0b061a833dd0ff92e0N.exe	31
PID 2544 wrote to memory of 2376	2544	19405f7736d00f0b061a833dd0ff92e0N.exe	31
PID 2544 wrote to memory of 2376	2544	19405f7736d00f0b061a833dd0ff92e0N.exe	31
PID 2376 wrote to memory of 2528	2376	winlgon.exe	32
PID 2376 wrote to memory of 2528	2376	winlgon.exe	32
PID 2376 wrote to memory of 2528	2376	winlgon.exe	32
PID 2376 wrote to memory of 2528	2376	winlgon.exe	32
PID 2544 wrote to memory of 2688	2544	19405f7736d00f0b061a833dd0ff92e0N.exe	33
PID 2544 wrote to memory of 2688	2544	19405f7736d00f0b061a833dd0ff92e0N.exe	33
PID 2544 wrote to memory of 2688	2544	19405f7736d00f0b061a833dd0ff92e0N.exe	33
PID 2544 wrote to memory of 2688	2544	19405f7736d00f0b061a833dd0ff92e0N.exe	33

C:\Users\Admin\AppData\Local\Temp\19405f7736d00f0b061a833dd0ff92e0N.exe
"C:\Users\Admin\AppData\Local\Temp\19405f7736d00f0b061a833dd0ff92e0N.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:2544
- \??\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:2376
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2376 -s 240
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:2528
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2544 -s 188
  2⤵
  - Program crash
  PID:2688

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
79KB

MD5
6414e6923608f253ffb02b9934e73cb6

SHA1
0061cc7edcc0b8858cbd8b959020b902ce83f373

SHA256
0514602ae239b28a3cf569125df30f2a404f2ac3ccae1152340cb83165883159

SHA512
c500075ef039c636044640fce8d934c018fe42d4100471dbd7cddf2264473a886be8c1e4d8e0c7f9ea73ad67e0060615be9e2d98fa45178190f1a076cab0040c

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads