Analysis
- max time kernel
165s - max time network
182s - platform
windows10-1703_x64 - resource
win10-20230220-en - resource tags
arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system - submitted
13/04/2023, 21:19
Behavioral task
behavioral1
Sample
4137aa5bbe56e125d0b0599929fa2ce9fc808cc87c4a865326d8a8cd9ab133d3.exe
Resource
win7-20230220-en
9 signatures
300 seconds
General
- Target 4137aa5bbe56e125d0b0599929fa2ce9fc808cc87c4a865326d8a8cd9ab133d3.exe
- Size 1.4MB
- Sample230413-z6nvzsec97
- SHA256 4137aa5bbe56e125d0b0599929fa2ce9fc808cc87c4a865326d8a8cd9ab133d3
- MD5 345d232f2983353f9b1026a2f02f7264
- SHA1 5acd18adbde70f8059b3001d9db06c33826e179a
- SHA512 8ca950d51d502340a866790a20c818beb37d8d8ad1f27b31ba58975b7bfbcb59f3170283f458ce73a55f27b29af89113059be9e53530b955e1eca81ccb4f7bf7
- SSDEEP 24576:fVHZuiMfYyAcNFMH8N8meJ9UEcUFU+ZsU3iNeQOuhHP5agQ+GVfJkYRpPIez:fV45F7N8PU342U3/QRCDvVfeYHIez
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 4137aa5bbe56e125d0b0599929fa2ce9fc808cc87c4a865326d8a8cd9ab133d3.exe - Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 4137aa5bbe56e125d0b0599929fa2ce9fc808cc87c4a865326d8a8cd9ab133d3.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 4137aa5bbe56e125d0b0599929fa2ce9fc808cc87c4a865326d8a8cd9ab133d3.exe - Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
resource yara_rule behavioral2/memory/2292-125-0x0000000000D40000-0x0000000001206000-memory.dmp themida behavioral2/memory/2292-146-0x0000000000D40000-0x0000000001206000-memory.dmp themida - Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 4137aa5bbe56e125d0b0599929fa2ce9fc808cc87c4a865326d8a8cd9ab133d3.exe - Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 2292 4137aa5bbe56e125d0b0599929fa2ce9fc808cc87c4a865326d8a8cd9ab133d3.exe - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2292 4137aa5bbe56e125d0b0599929fa2ce9fc808cc87c4a865326d8a8cd9ab133d3.exe 2292 4137aa5bbe56e125d0b0599929fa2ce9fc808cc87c4a865326d8a8cd9ab133d3.exe 2292 4137aa5bbe56e125d0b0599929fa2ce9fc808cc87c4a865326d8a8cd9ab133d3.exe 2292 4137aa5bbe56e125d0b0599929fa2ce9fc808cc87c4a865326d8a8cd9ab133d3.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2292 4137aa5bbe56e125d0b0599929fa2ce9fc808cc87c4a865326d8a8cd9ab133d3.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\4137aa5bbe56e125d0b0599929fa2ce9fc808cc87c4a865326d8a8cd9ab133d3.exe"C:\Users\Admin\AppData\Local\Temp\4137aa5bbe56e125d0b0599929fa2ce9fc808cc87c4a865326d8a8cd9ab133d3.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2292