Analysis
- max time kernel
72s - max time network
177s - platform
windows10-1703_x64 - resource
win10-20220901-en - resource tags
- submitted
08/10/2022, 04:47
General
- Target 5f6878cf4aa52dd5fa9ed42b664333b0fc7b28820a36cbe59dce16829ffa808f.exe
- Size 6.6MB
- Sample221008-fe1wpaeceq
- SHA256 5f6878cf4aa52dd5fa9ed42b664333b0fc7b28820a36cbe59dce16829ffa808f
Malware Config
Extracted
-
vidar
-
54.9
-
1707
-
https://t.me/larsenup
-
https://ioc.exchange/@zebra54
-
profile_id
1707
Signatures
- Vidar
Vidar is an infostealer based on Arkei stealer.
- 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.
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 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\5f6878cf4aa52dd5fa9ed42b664333b0fc7b28820a36cbe59dce16829ffa808f.exe"C:\Users\Admin\AppData\Local\Temp\5f6878cf4aa52dd5fa9ed42b664333b0fc7b28820a36cbe59dce16829ffa808f.exe"1⤵
- Loads dropped DLL
- 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" @ˆW /c taskkill /im 5f6878cf4aa52dd5fa9ed42b664333b0fc7b28820a36cbe59dce16829ffa808f.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\5f6878cf4aa52dd5fa9ed42b664333b0fc7b28820a36cbe59dce16829ffa808f.exe" & del C:\PrograData\*.dll & exit2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\taskkill.exetaskkill /im 5f6878cf4aa52dd5fa9ed42b664333b0fc7b28820a36cbe59dce16829ffa808f.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/1644-120-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-121-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-122-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-123-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-124-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-125-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-126-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-127-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-128-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-129-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-130-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-131-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-132-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-133-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-134-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-135-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-136-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-137-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-138-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-139-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-140-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-141-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-143-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-144-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-145-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-147-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-149-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-150-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-148-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-146-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-142-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-151-0x0000000000400000-0x0000000000E3D000-memory.dmp
memory/1644-152-0x0000000000400000-0x0000000000E3D000-memory.dmp
memory/1644-155-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-156-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-157-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-158-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-159-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-160-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-161-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-162-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-163-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-164-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-165-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-166-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-167-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-168-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-169-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-170-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-171-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-172-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-173-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-174-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-175-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-176-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-177-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-178-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-179-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-180-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-181-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-182-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-183-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-184-0x0000000077AA0000-0x0000000077C2E000-memory.dmp
memory/1644-225-0x0000000000400000-0x0000000000E3D000-memory.dmp
memory/1644-233-0x0000000000400000-0x0000000000E3D000-memory.dmp