Analysis
- max time kernel
138s - max time network
166s - platform
windows10_x64 - resource
win10-en-20211014 - submitted
06/12/2021, 03:14
General
- Target SecuriteInfo.com.W32.AIDetect.malware2.12916.31560.exe
- Size 1.7MB
- Sample211206-drb2zsdcbl
- SHA256 fc2efbe9d556ba1bfae20033d0cb3503d4db0f09cce8090baefc78ecb897da49
Malware Config
Signatures
- AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
- Async RAT payload 1 IoCs
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 13 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetect.malware2.12916.31560.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetect.malware2.12916.31560.exe"1⤵
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "service" /tr '"C:\Users\Admin\AppData\Roaming\service.exe"' & exit2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "service" /tr '"C:\Users\Admin\AppData\Roaming\service.exe"'3⤵
- Creates scheduled task(s)
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/3388-118-0x0000000000FD0000-0x0000000001030000-memory.dmp
memory/3388-119-0x0000000000400000-0x0000000000926000-memory.dmp
memory/3388-120-0x0000000002B00000-0x0000000002B01000-memory.dmp
memory/3388-121-0x0000000002B10000-0x0000000002B11000-memory.dmp
memory/3388-122-0x0000000002AC0000-0x0000000002AC1000-memory.dmp
memory/3388-123-0x0000000002B30000-0x0000000002B31000-memory.dmp
memory/3388-124-0x0000000002AF0000-0x0000000002AF1000-memory.dmp
memory/3388-125-0x0000000002AE0000-0x0000000002AE1000-memory.dmp
memory/3388-126-0x0000000002B50000-0x0000000002B51000-memory.dmp
memory/3388-128-0x00000000037F0000-0x00000000037F1000-memory.dmp
memory/3388-127-0x0000000002B20000-0x0000000002B21000-memory.dmp
memory/3388-129-0x00000000037E0000-0x00000000037E1000-memory.dmp
memory/3388-131-0x00000000037E0000-0x00000000037E1000-memory.dmp
memory/3388-132-0x00000000037E0000-0x00000000037E1000-memory.dmp
memory/3388-130-0x00000000037E0000-0x00000000037E1000-memory.dmp
memory/3388-133-0x00000000027D0000-0x00000000027D1000-memory.dmp
memory/3388-134-0x00000000027E0000-0x00000000027E1000-memory.dmp
memory/3388-135-0x0000000000F80000-0x0000000000F81000-memory.dmp
memory/3388-136-0x0000000000FA0000-0x0000000000FA1000-memory.dmp
memory/3388-138-0x0000000000400000-0x0000000000402000-memory.dmp
memory/3388-139-0x0000000002820000-0x0000000002821000-memory.dmp
memory/3388-142-0x00000000037E0000-0x00000000037E1000-memory.dmp
memory/3388-137-0x0000000002800000-0x0000000002801000-memory.dmp
memory/3388-143-0x0000000002A50000-0x0000000002A51000-memory.dmp
memory/3388-141-0x00000000037E0000-0x00000000037E1000-memory.dmp
memory/3388-144-0x0000000002A60000-0x0000000002A61000-memory.dmp
memory/3388-145-0x0000000002A10000-0x0000000002A11000-memory.dmp
memory/3388-147-0x0000000002A40000-0x0000000002A41000-memory.dmp
memory/3388-146-0x0000000002A80000-0x0000000002A81000-memory.dmp
memory/3388-149-0x0000000002AA0000-0x0000000002AA1000-memory.dmp
memory/3388-148-0x0000000002A30000-0x0000000002A31000-memory.dmp
memory/3388-150-0x00000000037E0000-0x00000000037E1000-memory.dmp
memory/3388-152-0x00000000037E0000-0x00000000037E1000-memory.dmp
memory/3388-151-0x00000000037E0000-0x00000000037E1000-memory.dmp
memory/3388-153-0x00000000037E0000-0x00000000037E1000-memory.dmp
memory/3388-154-0x00000000037E0000-0x00000000037E1000-memory.dmp
memory/3388-155-0x0000000000F70000-0x0000000000F71000-memory.dmp
memory/3388-156-0x0000000002BB0000-0x0000000002BB1000-memory.dmp
memory/3388-157-0x0000000002BC0000-0x0000000002BC1000-memory.dmp
memory/3388-158-0x0000000002B70000-0x0000000002B71000-memory.dmp
memory/3388-160-0x0000000002BA0000-0x0000000002BA1000-memory.dmp
memory/3388-168-0x0000000000F70000-0x0000000000F71000-memory.dmp
memory/3388-167-0x0000000000F70000-0x0000000000F71000-memory.dmp
memory/3388-166-0x0000000002830000-0x0000000002831000-memory.dmp
memory/3388-165-0x0000000002BF0000-0x0000000002BF1000-memory.dmp
memory/3388-164-0x0000000000F70000-0x0000000000F71000-memory.dmp
memory/3388-163-0x0000000000F70000-0x0000000000F71000-memory.dmp
memory/3388-162-0x0000000002C00000-0x0000000002C01000-memory.dmp
memory/3388-161-0x0000000002B90000-0x0000000002B91000-memory.dmp
memory/3388-159-0x0000000002BE0000-0x0000000002BE1000-memory.dmp
memory/3388-169-0x00000000060F0000-0x00000000060F1000-memory.dmp