e056fa4f27f1048f168c3326956b0da99a340c4763ec672e456e50a8366a8fa3

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
01-05-2024 04:15

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General

Target

e056fa4f27f1048f168c3326956b0da99a340c4763ec672e456e50a8366a8fa3.exe
Size

76KB
MD5

9dd87d7e39d9133abaf02aa1def29a47
SHA1

8f9aad08a555ed87f9d8dd90e944515e20fca8f2
SHA256

e056fa4f27f1048f168c3326956b0da99a340c4763ec672e456e50a8366a8fa3
SHA512

4f6c6ba553c2eb8310183edbc2bf2944045986ca78469f2d39683a6acd35bb3f6f078f69e3f3d8027b433e7cd93d6d691dab931797b0a5494ba701c4b4ca8c12
SSDEEP

1536:abSshapMJgKJUuxGmfJPtOgqm1s/XZSWcHFL:K25KJFjfJPtOgqm2/XZXc

Score

7^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2924	winlgon.exe

Loads dropped DLL 9 IoCs

pid	Process
1248	e056fa4f27f1048f168c3326956b0da99a340c4763ec672e456e50a8366a8fa3.exe
1248	e056fa4f27f1048f168c3326956b0da99a340c4763ec672e456e50a8366a8fa3.exe
2656	WerFault.exe
2656	WerFault.exe
2656	WerFault.exe
2656	WerFault.exe
2656	WerFault.exe
2656	WerFault.exe
2656	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"	e056fa4f27f1048f168c3326956b0da99a340c4763ec672e456e50a8366a8fa3.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\winlgon.exe = "c:\\users\\admin\\appdata\\local\\temp\\winlgon.exe"	e056fa4f27f1048f168c3326956b0da99a340c4763ec672e456e50a8366a8fa3.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2656	2924	WerFault.exe	28
2704	1248	WerFault.exe	27

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1248	e056fa4f27f1048f168c3326956b0da99a340c4763ec672e456e50a8366a8fa3.exe
2924	winlgon.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1248 wrote to memory of 2924	1248	e056fa4f27f1048f168c3326956b0da99a340c4763ec672e456e50a8366a8fa3.exe	28
PID 1248 wrote to memory of 2924	1248	e056fa4f27f1048f168c3326956b0da99a340c4763ec672e456e50a8366a8fa3.exe	28
PID 1248 wrote to memory of 2924	1248	e056fa4f27f1048f168c3326956b0da99a340c4763ec672e456e50a8366a8fa3.exe	28
PID 1248 wrote to memory of 2924	1248	e056fa4f27f1048f168c3326956b0da99a340c4763ec672e456e50a8366a8fa3.exe	28
PID 2924 wrote to memory of 2656	2924	winlgon.exe	29
PID 2924 wrote to memory of 2656	2924	winlgon.exe	29
PID 2924 wrote to memory of 2656	2924	winlgon.exe	29
PID 2924 wrote to memory of 2656	2924	winlgon.exe	29
PID 1248 wrote to memory of 2704	1248	e056fa4f27f1048f168c3326956b0da99a340c4763ec672e456e50a8366a8fa3.exe	32
PID 1248 wrote to memory of 2704	1248	e056fa4f27f1048f168c3326956b0da99a340c4763ec672e456e50a8366a8fa3.exe	32
PID 1248 wrote to memory of 2704	1248	e056fa4f27f1048f168c3326956b0da99a340c4763ec672e456e50a8366a8fa3.exe	32
PID 1248 wrote to memory of 2704	1248	e056fa4f27f1048f168c3326956b0da99a340c4763ec672e456e50a8366a8fa3.exe	32

C:\Users\Admin\AppData\Local\Temp\e056fa4f27f1048f168c3326956b0da99a340c4763ec672e456e50a8366a8fa3.exe
"C:\Users\Admin\AppData\Local\Temp\e056fa4f27f1048f168c3326956b0da99a340c4763ec672e456e50a8366a8fa3.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1248
- \??\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:2924
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2924 -s 256
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:2656
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1248 -s 204
  2⤵
  - Program crash
  PID:2704

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

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

Filesize
76KB

MD5
dec694e4cad55681987a9a8aaeb626af

SHA1
032766fcb4409f8ed2c76862e963daff37434a16

SHA256
99aa63593ff301cb170791b605b153b40abe5e74683cfb7bcc656b8b5f1a9ea3

SHA512
6e7c2aee95acecbc714b625fac42a8d0a79f426da5dc9993e9335a63a797e02a3fd8aee84cb12b1c8361ad00ff198ed1e1c4d60c4b1ceffa0585eb62ec0e4657

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads