Analysis
- max time kernel
150s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
14/11/2022, 19:11
General
- Target 8322e07c26f7c6e100e5b2be34080db4.exe
- Size 1.9MB
- Sample221114-xvxmmsdb33
- SHA256 4268c628b2cfcf6700dc00f43a474bd0fa720b43008bc3684631453542523bea
Malware Config
Extracted
-
vidar
-
55.6
-
1760
-
https://t.me/dahakatv
-
profile_id
1760
Signatures
- Vidar
Vidar is an infostealer based on Arkei stealer.
- 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.
- 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.
- 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
- Suspicious behavior: EnumeratesProcesses 12 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\8322e07c26f7c6e100e5b2be34080db4.exe"C:\Users\Admin\AppData\Local\Temp\8322e07c26f7c6e100e5b2be34080db4.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\8322e07c26f7c6e100e5b2be34080db4.exe" & exit2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\timeout.exetimeout /t 63⤵
- Delays execution with timeout.exe
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
mozglue.dll
nss3.dll
memory/3140-136-0x0000000010A30000-0x0000000010D4F000-memory.dmp
memory/3140-133-0x0000000077520000-0x00000000776C3000-memory.dmp
memory/3140-132-0x0000000002EAC000-0x000000000375D000-memory.dmp
memory/3140-137-0x0000000010A30000-0x0000000010D4F000-memory.dmp
memory/3140-138-0x0000000000400000-0x0000000000460000-memory.dmp
memory/3140-141-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/3140-134-0x000000000376C000-0x0000000003925000-memory.dmp
memory/3140-135-0x0000000077520000-0x00000000776C3000-memory.dmp
memory/3140-165-0x0000000010A30000-0x0000000010D4F000-memory.dmp
memory/3140-162-0x0000000002EA0000-0x0000000003043000-memory.dmp
memory/3140-163-0x000000000376C000-0x0000000003925000-memory.dmp
memory/3140-164-0x0000000077520000-0x00000000776C3000-memory.dmp