2e272b385a2298ab9dc3415cc863336b156a3f183cf6a0cbc93fa652fa0b6b66

Analysis

max time kernel
148s
max time network
160s
platform
windows10-2004_x64
resource
win10v2004-20230915-en
resource tags

arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
submitted
15/10/2023, 19:24

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General

Target

31dc4642799d2fafc5d0f0f72ba6c6f0_exe32_JC.exe
Size

70KB
MD5

31dc4642799d2fafc5d0f0f72ba6c6f0
SHA1

07e7a1c05a3b70a709207b5cb71c51defa080c72
SHA256

2e272b385a2298ab9dc3415cc863336b156a3f183cf6a0cbc93fa652fa0b6b66
SHA512

f45c082196cbc169a8298d526545721c04b292bf47fa625665dd3ab5b21462be5b07aadcf076e8a01be04bef97a0195aac74134e8a4599c5580fbcdf1c98a724
SSDEEP

768:V4bSshapMnJguFiZp6UuxP/yQomaB5qvhTRFlr/Pt8vKJ+DEqm1s/XZA4NgS7:abSshapMJgKJUuxGmfJPtOgqm1s/XZSW

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
3652	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"	31dc4642799d2fafc5d0f0f72ba6c6f0_exe32_JC.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2890696111-2332180956-3312704074-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\winlgon.exe = "c:\\users\\admin\\appdata\\local\\temp\\winlgon.exe"	31dc4642799d2fafc5d0f0f72ba6c6f0_exe32_JC.exe

Program crash 3 IoCs

pid	pid_target	Process	procid_target
1384	3652	WerFault.exe	82
1148	3652	WerFault.exe	82
676	2200	WerFault.exe	80

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2200	31dc4642799d2fafc5d0f0f72ba6c6f0_exe32_JC.exe
3652	winlgon.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2200 wrote to memory of 3652	2200	31dc4642799d2fafc5d0f0f72ba6c6f0_exe32_JC.exe	82
PID 2200 wrote to memory of 3652	2200	31dc4642799d2fafc5d0f0f72ba6c6f0_exe32_JC.exe	82
PID 2200 wrote to memory of 3652	2200	31dc4642799d2fafc5d0f0f72ba6c6f0_exe32_JC.exe	82
PID 3652 wrote to memory of 1384	3652	winlgon.exe	85
PID 3652 wrote to memory of 1384	3652	winlgon.exe	85
PID 3652 wrote to memory of 1384	3652	winlgon.exe	85

C:\Users\Admin\AppData\Local\Temp\31dc4642799d2fafc5d0f0f72ba6c6f0_exe32_JC.exe
"C:\Users\Admin\AppData\Local\Temp\31dc4642799d2fafc5d0f0f72ba6c6f0_exe32_JC.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2200
- \??\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:3652
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3652 -s 688
    3⤵
    - Program crash
    PID:1384
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3652 -s 688
    3⤵
    - Program crash
    PID:1148
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2200 -s 572
  2⤵
  - Program crash
  PID:676

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3652 -ip 3652
1⤵
PID:4288

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 2200 -ip 2200
1⤵
PID:312

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
70KB

MD5
dedfbbb48bf13b0065a0d2f4ba274c93

SHA1
43213cc5bd0aa74b168ab5cfe741cdd130e894b4

SHA256
72aa35d06b7f289a539afdc8ed7054adac98036e9646df31e1f4f596404ae19a

SHA512
dd08ddcde9d73817ad8112f99aeaf229aba4fa6c91ac33055508fc23c21ddd30dd9a1f7a91b448f9d0f0e69ed685d030ed91341e916cc4927dc5ac52334db682

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

Filesize
70KB

MD5
dedfbbb48bf13b0065a0d2f4ba274c93

SHA1
43213cc5bd0aa74b168ab5cfe741cdd130e894b4

SHA256
72aa35d06b7f289a539afdc8ed7054adac98036e9646df31e1f4f596404ae19a

SHA512
dd08ddcde9d73817ad8112f99aeaf229aba4fa6c91ac33055508fc23c21ddd30dd9a1f7a91b448f9d0f0e69ed685d030ed91341e916cc4927dc5ac52334db682

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads