Analysis
- max time kernel
149s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20251231-en - resource tags
arch:x64arch:x86image:win11-20251231-enlocale:en-usos:windows11-21h2-x64system - submitted
07/01/2026, 04:24
Behavioral task
behavioral1
Sample
2026-01-07_ab193c0efce055a896b1ebecdf4a6033_elex_runningrat_wannacry_zxshell.exe
Resource
win10v2004-20251231-en
18 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-01-07_ab193c0efce055a896b1ebecdf4a6033_elex_runningrat_wannacry_zxshell.exe
Resource
win11-20251231-en
17 signatures
150 seconds
General
- Target 2026-01-07_ab193c0efce055a896b1ebecdf4a6033_elex_runningrat_wannacry_zxshell.exe
- Size 56KB
- Sample260107-e1mqhsfl4w
- SHA256 6d588fdd67f611a907005b0236d324acbf152298a6e28f5d97f9d23001d4d5e8
- MD5 ab193c0efce055a896b1ebecdf4a6033
- SHA1 97044be49f740a5f301d951a9d2166a1a39c1bda
- SHA512 673ab9c8b05d72845b215c93934e20ef9a3cfa4562d48f7f5cc36140acd004a072bf0ee10950548d85ccb70a6b478058db1e2a4f88d3a33f5095e4f5e911fe6b
- SSDEEP 768:Dr0atvvxN9tpdC7EezJ0d8hPUtrFRtFtg3NojiwvuccA4iiKahtAZchL:Dr0udk7ESuqhParNMKnFfiroZch
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- RunningRat
RunningRat is a remote access trojan first seen in 2018.
- Runningrat family
- Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\svhast\Parameters\ServiceDll = "C:\\Windows\\system32\\240625687.dll" 2026-01-07_ab193c0efce055a896b1ebecdf4a6033_elex_runningrat_wannacry_zxshell.exe - Executes dropped EXE 1 IoCs
pid Process 5056 svhast.exe - Loads dropped DLL 3 IoCs
pid Process 4912 2026-01-07_ab193c0efce055a896b1ebecdf4a6033_elex_runningrat_wannacry_zxshell.exe 4284 svchost.exe 5056 svhast.exe - Creates a Windows Service
- Drops file in System32 directory 3 IoCs
description ioc Process File created C:\Windows\SysWOW64\240625687.dll 2026-01-07_ab193c0efce055a896b1ebecdf4a6033_elex_runningrat_wannacry_zxshell.exe File created C:\Windows\SysWOW64\svhast.exe svchost.exe File opened for modification C:\Windows\SysWOW64\svhast.exe svchost.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PING.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svhast.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2026-01-07_ab193c0efce055a896b1ebecdf4a6033_elex_runningrat_wannacry_zxshell.exe - System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 2600 cmd.exe 5076 PING.EXE - Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 svhast.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz svhast.exe - Modifies data under HKEY_USERS 5 IoCs
description ioc Process Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum svhast.exe Key created \REGISTRY\USER\.DEFAULT\Software svhast.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft svhast.exe Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie svhast.exe Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum\Version = "7" svhast.exe - Runs ping.exe 1 TTPs 1 IoCs
pid Process 5076 PING.EXE - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4912 2026-01-07_ab193c0efce055a896b1ebecdf4a6033_elex_runningrat_wannacry_zxshell.exe 4912 2026-01-07_ab193c0efce055a896b1ebecdf4a6033_elex_runningrat_wannacry_zxshell.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 4912 2026-01-07_ab193c0efce055a896b1ebecdf4a6033_elex_runningrat_wannacry_zxshell.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4912 2026-01-07_ab193c0efce055a896b1ebecdf4a6033_elex_runningrat_wannacry_zxshell.exe - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4912 wrote to memory of 2600 4912 2026-01-07_ab193c0efce055a896b1ebecdf4a6033_elex_runningrat_wannacry_zxshell.exe 79 PID 2600 wrote to memory of 5076 2600 cmd.exe 81 PID 4284 wrote to memory of 5056 4284 svchost.exe 84
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-01-07_ab193c0efce055a896b1ebecdf4a6033_elex_runningrat_wannacry_zxshell.exe"C:\Users\Admin\AppData\Local\Temp\2026-01-07_ab193c0efce055a896b1ebecdf4a6033_elex_runningrat_wannacry_zxshell.exe"1⤵
- Server Software Component: Terminal Services DLL
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4912 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 -n 1 && del /f/q "C:\Users\Admin\AppData\Local\Temp\2026-01-07_ab193c0efce055a896b1ebecdf4a6033_elex_runningrat_wannacry_zxshell.exe"2⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:2600 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 13⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:5076
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-
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C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe -k "svhast"1⤵PID:3160
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C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe -k "svhast"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4284 -
C:\Windows\SysWOW64\svhast.exeC:\Windows\system32\svhast.exe "c:\windows\system32\240625687.dll",MainThread2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Modifies data under HKEY_USERS
PID:5056
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k "svhast"1⤵PID:6092
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Windows\SysWOW64\240625687.dll
- Size 33KB
- SHA256 d12f0cb3d1ecc150051741ff4123946bbffa7c2495ccf9ff783589e9b32f90e9
- MD5 f1bbb4e5cf0353481bf7e522ed5bba09
- SHA1 c3e0e7530172ef68a0b516f94bd590821da3df4a
- SHA512 c7776f6c316f9a4b85a703194c343ba54f1f701f97df30ef422875414cb5a01cc74b33a7511ebb042f633bdb82c6bada52841577fe8900f4057df3a77bc7a17f
- SSDEEP 384:IEwQJ4+4AAf3IOI6PtW1q/pXM+RfW1YQN+sXPFZVGJ2ZBp7am56H8x9l0aALlsHN:IPQJ4+4L4h6cYRfUYcb/FOMsmT9WXst
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Windows\SysWOW64\svhast.exe
- Size 40KB
- SHA256 8dcaeeebef9b9f3d41d295db145ffb3850f309d089c08125c7fa7034db5fd80e
- MD5 22bb5bd901d8b25ac5b41edbb7d5053e
- SHA1 8a935dd8d7e104fc553ff7e8b54a404f7b079334
- SHA512 cc3fb68fd6791a08e4a7d1a8db8d07cfcc8c9b9dceec10b53f0cb7ee86473303a19be4f23e379f84c59e02d0568e7c066e21cd1300f6032dac4ba52f609f62e7
- SSDEEP 768:C67uhQpPPp0nnqFk509FRdVcQX6N58hJYim1jLP3RRe:C67uhQpXp0nnqa5093jKNAmB3RR
- MD5 SHA1 SHA512 SSDEEP