Analysis
- max time kernel
146s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system - submitted
07/01/2024, 19:33
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
a9b45d0250bca708c7fa98c52df136f0.exe
Resource
win7-20231215-en
1 signatures
150 seconds
Behavioral task
behavioral2
Sample
a9b45d0250bca708c7fa98c52df136f0.exe
Resource
win10v2004-20231215-en
5 signatures
150 seconds
General
- Target a9b45d0250bca708c7fa98c52df136f0.exe
- Size 1.7MB
- Sample240107-x9ltpacfbl
- SHA256 0727ce841eb96d4b9bee203e921514a55f22ad56d225be3f1bf1dd0572aed442
- MD5 a9b45d0250bca708c7fa98c52df136f0
- SHA1 93b6e42298845c6127c57727416be9656515acad
- SHA512 f770e99aaaee6493031d2b2deb134218256f4b18d594f65bd3ecb8e6780e0f3f319517de34cdd1bf0594dd1c1ec3a3141e89545a769c1c99a5aae497a4d22328
- SSDEEP 24576:+g6sEqEDx5utai6DbanvJVfS5AHXo7SC5ABzkR8cdg6osvA3a7k0U3:+gCS6sJ9S5LFhg6pvA3a7k
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\update\\update.exe," reg.exe - Obfuscated with Agile.Net obfuscator 1 IoCs
Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.
resource yara_rule behavioral2/memory/1752-7-0x00000000074E0000-0x0000000007508000-memory.dmp agile_net - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1752 a9b45d0250bca708c7fa98c52df136f0.exe 1752 a9b45d0250bca708c7fa98c52df136f0.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1752 a9b45d0250bca708c7fa98c52df136f0.exe - Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1752 wrote to memory of 2672 1752 a9b45d0250bca708c7fa98c52df136f0.exe 99 PID 1752 wrote to memory of 2672 1752 a9b45d0250bca708c7fa98c52df136f0.exe 99 PID 1752 wrote to memory of 2672 1752 a9b45d0250bca708c7fa98c52df136f0.exe 99 PID 2672 wrote to memory of 2124 2672 cmd.exe 98 PID 2672 wrote to memory of 2124 2672 cmd.exe 98 PID 2672 wrote to memory of 2124 2672 cmd.exe 98
Processes
-
C:\Users\Admin\AppData\Local\Temp\a9b45d0250bca708c7fa98c52df136f0.exe"C:\Users\Admin\AppData\Local\Temp\a9b45d0250bca708c7fa98c52df136f0.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1752 -
C:\Windows\SysWOW64\cmd.exe"cmd.exe" /c REG ADD "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v "Shell" /t REG_SZ /d "explorer.exe,C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\update\update.exe,"2⤵
- Suspicious use of WriteProcessMemory
PID:2672
-
-
C:\Windows\SysWOW64\reg.exeREG ADD "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v "Shell" /t REG_SZ /d "explorer.exe,C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\update\update.exe,"1⤵
- Modifies WinLogon for persistence
PID:2124