d2e2cdf6a461aad052167a1954786c8dc836fb18f7c58c7ff99e7daa17532cec

Analysis

max time kernel
30s
max time network
17s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
24/08/2024, 15:39

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General

Target

bd031c4ed9776c1d6bfdf9afdc69ae10N.exe
Size

77KB
MD5

bd031c4ed9776c1d6bfdf9afdc69ae10
SHA1

a923b6e0f2f908e0508a67e4e0f73a883287012d
SHA256

d2e2cdf6a461aad052167a1954786c8dc836fb18f7c58c7ff99e7daa17532cec
SHA512

f9109af7741a14d6a1fd9de0f3568906e65faec4cecfa9a13548f077701259474d5b0430793df775e17362ef287091490f662de940fb6ec0de19e79cc0aaadaa
SSDEEP

1536:abSshapMJgKJUuxGmfJPtOgqm1s/XZSWcHl:K25KJFjfJPtOgqm2/XZXY

Score

7^/10

discovery persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2524	winlgon.exe

Loads dropped DLL 9 IoCs

pid	Process
2408	bd031c4ed9776c1d6bfdf9afdc69ae10N.exe
2408	bd031c4ed9776c1d6bfdf9afdc69ae10N.exe
2192	WerFault.exe
2192	WerFault.exe
2192	WerFault.exe
2192	WerFault.exe
2192	WerFault.exe
2192	WerFault.exe
2192	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"	bd031c4ed9776c1d6bfdf9afdc69ae10N.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"	bd031c4ed9776c1d6bfdf9afdc69ae10N.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
2192	2524	WerFault.exe	30
2884	2408	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	bd031c4ed9776c1d6bfdf9afdc69ae10N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	winlgon.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2408	bd031c4ed9776c1d6bfdf9afdc69ae10N.exe
2524	winlgon.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2408 wrote to memory of 2524	2408	bd031c4ed9776c1d6bfdf9afdc69ae10N.exe	30
PID 2408 wrote to memory of 2524	2408	bd031c4ed9776c1d6bfdf9afdc69ae10N.exe	30
PID 2408 wrote to memory of 2524	2408	bd031c4ed9776c1d6bfdf9afdc69ae10N.exe	30
PID 2408 wrote to memory of 2524	2408	bd031c4ed9776c1d6bfdf9afdc69ae10N.exe	30
PID 2524 wrote to memory of 2192	2524	winlgon.exe	31
PID 2524 wrote to memory of 2192	2524	winlgon.exe	31
PID 2524 wrote to memory of 2192	2524	winlgon.exe	31
PID 2524 wrote to memory of 2192	2524	winlgon.exe	31
PID 2408 wrote to memory of 2884	2408	bd031c4ed9776c1d6bfdf9afdc69ae10N.exe	33
PID 2408 wrote to memory of 2884	2408	bd031c4ed9776c1d6bfdf9afdc69ae10N.exe	33
PID 2408 wrote to memory of 2884	2408	bd031c4ed9776c1d6bfdf9afdc69ae10N.exe	33
PID 2408 wrote to memory of 2884	2408	bd031c4ed9776c1d6bfdf9afdc69ae10N.exe	33

C:\Users\Admin\AppData\Local\Temp\bd031c4ed9776c1d6bfdf9afdc69ae10N.exe
"C:\Users\Admin\AppData\Local\Temp\bd031c4ed9776c1d6bfdf9afdc69ae10N.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:2408
- \??\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:2524
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2524 -s 240
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:2192
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2408 -s 188
  2⤵
  - Program crash
  PID:2884

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
77KB

MD5
0b04162ea6557b64fbc0ca1537453adf

SHA1
28dcda1caef15a78091b9e20de5e66d1e1b3f169

SHA256
2cd53df483121574a034d6d62cfbc71223d99cb0bd90459bd640ba4e1a648a08

SHA512
59efbc698c47c1135c756fb7310e33aff2504d31f506c050b9d4c449751af3f25c3d892dd06d27015a4c81476183455c988ff45b8748f154580bde4db77ff139

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads