Analysis
- max time kernel
132s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
28/03/2023, 07:33
General
- Target SecuriteInfo.com.Win64.PWSX-gen.3187.26224.exe
- Size 1.1MB
- Sample230328-jdj4bsbd7t
- SHA256 fbfa8f32f35e7925f320978a55f28df0c6214cefd8a93fa02a0c1d946d100715
Malware Config
Signatures
- UAC bypass 3 TTPs 1 IoCs
- Windows security bypass 2 TTPs 2 IoCs
- Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
- Looks for VMWare Tools registry key 2 TTPs 1 IoCs
- Sets service image path in registry 2 TTPs 1 IoCs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Windows security modification 2 TTPs 3 IoCs
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Checks whether UAC is enabled 1 TTPs 2 IoCs
- Legitimate hosting services abused for malware hosting/C2 1 TTPs
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 1 IoCs
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 22 IoCs
- Suspicious behavior: LoadsDriver 1 IoCs
- Suspicious use of AdjustPrivilegeToken 5 IoCs
- Suspicious use of WriteProcessMemory 28 IoCs
- System policy modification 1 TTPs 1 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win64.PWSX-gen.3187.26224.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win64.PWSX-gen.3187.26224.exe"1⤵
- UAC bypass
- Windows security bypass
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Sets service image path in registry
- Checks BIOS information in registry
- Checks computer location settings
- Windows security modification
- Checks whether UAC is enabled
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: LoadsDriver
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Win64.PWSX-gen.3187.26224.exe" -Force2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngentask.exe"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngentask.exe"2⤵
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ilasm.exe"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ilasm.exe"2⤵
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegSvcs.exe"2⤵
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\WsatConfig.exe"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\WsatConfig.exe"2⤵
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ComSvcConfig.exe"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ComSvcConfig.exe"2⤵
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\jsc.exe"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\jsc.exe"2⤵
- Accesses Microsoft Outlook profiles
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1464 -s 19803⤵
- Program crash
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_wp.exe"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_wp.exe"2⤵
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\AddInUtil.exe"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\AddInUtil.exe"2⤵
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\SMSvcHost.exe"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\SMSvcHost.exe"2⤵
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\dfsvc.exe"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\dfsvc.exe"2⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1464 -ip 14641⤵
Network
MITRE ATT&CK Enterprise v6
Defense Evasion
Bypass User Account Control
1Disabling Security Tools
3Modify Registry
5Virtualization/Sandbox Evasion
2Web Service
1Replay Monitor
Loading Replay Monitor...
Downloads
__PSScriptPolicyTest_mljtwbhe.2vn.ps1
tmp9BD7.tmp
memory/644-149-0x00000236748F0000-0x0000023674900000-memory.dmp
memory/644-150-0x00000236748F0000-0x0000023674900000-memory.dmp
memory/644-142-0x0000023674970000-0x0000023674992000-memory.dmp
memory/644-148-0x00000236748F0000-0x0000023674900000-memory.dmp
memory/1464-143-0x0000000000400000-0x00000000004D2000-memory.dmp
memory/1464-153-0x0000000005900000-0x0000000005910000-memory.dmp
memory/1464-154-0x0000000007D00000-0x0000000007D66000-memory.dmp
memory/1464-158-0x00000000092E0000-0x0000000009302000-memory.dmp
memory/1464-195-0x00000000096F0000-0x00000000096FA000-memory.dmp
memory/1464-196-0x0000000009720000-0x0000000009732000-memory.dmp
memory/1464-219-0x0000000005900000-0x0000000005910000-memory.dmp
memory/4088-133-0x000001AAC3F80000-0x000001AAC4096000-memory.dmp
memory/4088-134-0x000001AADE550000-0x000001AADE560000-memory.dmp