Analysis
- max time kernel
122s - max time network
110s - platform
windows10_x64 - resource
win10v20201028 - submitted
17/02/2021, 13:58
General
- Target 545e336e9b3957da924cdbf9ccc49037.exe
- Size 536KB
- Sample210217-8r6t5yh2a2
- SHA256 21bc6e657606c08dca9703d2149640fa9738c460c8d71a65b8913b5c7a7ae0f4
Malware Config
Signatures
- Adds Run key to start application 2 TTPs 1 IoCs
- Suspicious use of SetThreadContext 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 2 IoCs
- Suspicious behavior: RenamesItself 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\545e336e9b3957da924cdbf9ccc49037.exe"C:\Users\Admin\AppData\Local\Temp\545e336e9b3957da924cdbf9ccc49037.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CvcHHOJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp84C1.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\545e336e9b3957da924cdbf9ccc49037.exe"C:\Users\Admin\AppData\Local\Temp\545e336e9b3957da924cdbf9ccc49037.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/640-11-0x0000000005390000-0x0000000005394000-memory.dmp
memory/640-5-0x00000000051D0000-0x00000000051D1000-memory.dmp
memory/640-7-0x00000000053A0000-0x00000000053A1000-memory.dmp
memory/640-8-0x00000000051C0000-0x00000000051C1000-memory.dmp
memory/640-9-0x00000000052B0000-0x00000000052B1000-memory.dmp
memory/640-10-0x0000000005500000-0x0000000005501000-memory.dmp
memory/640-2-0x0000000073190000-0x000000007387E000-memory.dmp
memory/640-12-0x00000000010F0000-0x0000000001153000-memory.dmp
memory/640-3-0x0000000000970000-0x0000000000971000-memory.dmp
memory/640-6-0x0000000005800000-0x0000000005801000-memory.dmp
memory/4056-15-0x0000000000400000-0x000000000043C000-memory.dmp
memory/4056-18-0x0000000073190000-0x000000007387E000-memory.dmp
memory/4056-22-0x0000000005100000-0x0000000005101000-memory.dmp
memory/4056-24-0x00000000051B0000-0x00000000051B1000-memory.dmp
memory/4056-25-0x0000000005D20000-0x0000000005D21000-memory.dmp