Analysis
- max time kernel
80s - max time network
127s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
- submitted
26/09/2022, 16:26
General
- Target file.exe
- Size 4.7MB
- Sample220926-txhdyscecq
- SHA256 d74e35ce1229ef0e134937caa01fd67a8fdf3fd0c7a85762090b10631fb526b7
Malware Config
Extracted
-
vidar
-
54.7
-
1679
-
https://t.me/trampapanam
-
https://nerdculture.de/@yoxhyp
-
profile_id
1679
Signatures
- Vidar
Vidar is an infostealer based on Arkei stealer.
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
- VMProtect packed file 8 IoCs
Detects executables packed with VMProtect commercial packer.
- 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.
- Loads dropped DLL 2 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Themida packer 8 IoCs
Detects Themida, an advanced Windows software protection system.
- Accesses 2FA software files, possible credential harvesting 2 TTPs
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Delays execution with timeout.exe 1 IoCs
- Kills process with taskkill 1 IoCs
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im file.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\file.exe" & del C:\PrograData\*.dll & exit2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\taskkill.exetaskkill /im file.exe /f3⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\timeout.exetimeout /t 63⤵
- Delays execution with timeout.exe
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
mozglue.dll
nss3.dll
memory/2796-144-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/2796-140-0x0000000000CB0000-0x0000000001613000-memory.dmp
memory/2796-142-0x0000000077C50000-0x0000000077DF3000-memory.dmp
memory/2796-141-0x0000000000CB0000-0x0000000001613000-memory.dmp
memory/2796-143-0x0000000000CB0000-0x0000000001613000-memory.dmp
memory/2796-132-0x0000000000CB0000-0x0000000001613000-memory.dmp
memory/2796-139-0x0000000000CB0000-0x0000000001613000-memory.dmp
memory/2796-138-0x0000000000CB0000-0x0000000001613000-memory.dmp
memory/2796-133-0x0000000000CB0000-0x0000000001613000-memory.dmp
memory/2796-166-0x0000000000CB0000-0x0000000001613000-memory.dmp
memory/2796-167-0x0000000077C50000-0x0000000077DF3000-memory.dmp