Analysis
- max time kernel
158s - max time network
158s - platform
windows7_x64 - resource
win7-en-20211104 - 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 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 8 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/556-55-0x0000000000360000-0x00000000003C0000-memory.dmp
memory/556-56-0x0000000075491000-0x0000000075493000-memory.dmp
memory/556-57-0x0000000000400000-0x0000000000926000-memory.dmp
memory/556-58-0x0000000002910000-0x0000000002911000-memory.dmp
memory/556-59-0x0000000002920000-0x0000000002921000-memory.dmp
memory/556-60-0x00000000028D0000-0x00000000028D1000-memory.dmp
memory/556-61-0x0000000002940000-0x0000000002941000-memory.dmp
memory/556-62-0x0000000002900000-0x0000000002901000-memory.dmp
memory/556-63-0x00000000028F0000-0x00000000028F1000-memory.dmp
memory/556-64-0x0000000002960000-0x0000000002961000-memory.dmp
memory/556-65-0x0000000002930000-0x0000000002931000-memory.dmp
memory/556-67-0x00000000035F0000-0x00000000035F1000-memory.dmp
memory/556-66-0x0000000003600000-0x0000000003601000-memory.dmp
memory/556-68-0x00000000035F0000-0x00000000035F1000-memory.dmp
memory/556-69-0x00000000035F0000-0x00000000035F1000-memory.dmp
memory/556-70-0x00000000035F0000-0x00000000035F1000-memory.dmp
memory/556-71-0x00000000009B0000-0x00000000009B1000-memory.dmp
memory/556-72-0x00000000009C0000-0x00000000009C1000-memory.dmp
memory/556-73-0x0000000000930000-0x0000000000931000-memory.dmp
memory/556-74-0x0000000000950000-0x0000000000951000-memory.dmp
memory/556-75-0x00000000009E0000-0x00000000009E1000-memory.dmp
memory/556-76-0x0000000000A00000-0x0000000000A01000-memory.dmp
memory/556-77-0x00000000035F0000-0x00000000035F1000-memory.dmp
memory/556-78-0x00000000035F0000-0x00000000035F1000-memory.dmp
memory/556-79-0x0000000002860000-0x0000000002861000-memory.dmp
memory/556-80-0x0000000002870000-0x0000000002871000-memory.dmp
memory/556-82-0x0000000002890000-0x0000000002891000-memory.dmp
memory/556-81-0x0000000002820000-0x0000000002821000-memory.dmp
memory/556-83-0x0000000002850000-0x0000000002851000-memory.dmp
memory/556-85-0x00000000028B0000-0x00000000028B1000-memory.dmp
memory/556-84-0x0000000002840000-0x0000000002841000-memory.dmp
memory/556-86-0x00000000035F0000-0x00000000035F1000-memory.dmp
memory/556-87-0x00000000035F0000-0x00000000035F1000-memory.dmp
memory/556-88-0x00000000035F0000-0x00000000035F1000-memory.dmp
memory/556-89-0x00000000035F0000-0x00000000035F1000-memory.dmp
memory/556-90-0x00000000035F0000-0x00000000035F1000-memory.dmp
memory/556-91-0x00000000003F0000-0x00000000003F1000-memory.dmp
memory/556-92-0x00000000029C0000-0x00000000029C1000-memory.dmp
memory/556-93-0x00000000029D0000-0x00000000029D1000-memory.dmp
memory/556-94-0x0000000002980000-0x0000000002981000-memory.dmp
memory/556-95-0x00000000029F0000-0x00000000029F1000-memory.dmp
memory/556-96-0x00000000029B0000-0x00000000029B1000-memory.dmp
memory/556-97-0x00000000029A0000-0x00000000029A1000-memory.dmp
memory/556-98-0x0000000002A10000-0x0000000002A11000-memory.dmp
memory/556-99-0x00000000003F0000-0x00000000003F1000-memory.dmp
memory/556-100-0x00000000003F0000-0x00000000003F1000-memory.dmp
memory/556-101-0x0000000002A00000-0x0000000002A01000-memory.dmp
memory/556-102-0x0000000000A10000-0x0000000000A11000-memory.dmp
memory/556-103-0x00000000003F0000-0x00000000003F1000-memory.dmp
memory/556-104-0x00000000003F0000-0x00000000003F1000-memory.dmp
memory/556-105-0x0000000000400000-0x0000000000402000-memory.dmp
memory/556-107-0x0000000005BE0000-0x0000000005BE1000-memory.dmp