Analysis
- max time kernel
104s - max time network
142s - platform
windows10-2004_x64 - resource
win10v2004-20250313-en - resource tags
- submitted
26/03/2025, 03:52
General
- Target 7a5f2afe726768008f80860aa992e56e01cb609d6a0510348a528182ae4ad8d1.exe
- Size 3.5MB
- Sample250326-ee2bsaxscv
- SHA256 7a5f2afe726768008f80860aa992e56e01cb609d6a0510348a528182ae4ad8d1
Malware Config
Signatures
- NetSupport
NetSupport is a remote access tool sold as a legitimate system administration software.
- Netsupport family
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 8 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of FindShellTrayWindow 2 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\7a5f2afe726768008f80860aa992e56e01cb609d6a0510348a528182ae4ad8d1.exe"C:\Users\Admin\AppData\Local\Temp\7a5f2afe726768008f80860aa992e56e01cb609d6a0510348a528182ae4ad8d1.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\RarSFX0\BunnySwap.exe"C:\Users\Admin\AppData\Local\Temp\RarSFX0\BunnySwap.exe" /VERYSILENT /SP-2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-OV6OO.tmp\BunnySwap.tmp"C:\Users\Admin\AppData\Local\Temp\is-OV6OO.tmp\BunnySwap.tmp" /SL5="$5006C,2795622,780800,C:\Users\Admin\AppData\Local\Temp\RarSFX0\BunnySwap.exe" /VERYSILENT /SP-3⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\WindowsUserCerts\updater.exe"C:\Users\Admin\AppData\Roaming\WindowsUserCerts\updater.exe"4⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
-
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
BunnySwap.exe
BunnySwap.tmp
_isdecmp.dll
NSM.LIC
is-005A9.tmp
is-1KM8P.tmp
is-4M4O1.tmp
is-ABS5Q.tmp
is-AS57L.tmp
is-F0013.tmp
is-F9N1S.tmp
is-O78P1.tmp
is-PSOF8.tmp
is-S5VQK.tmp
is-U15TT.tmp
is-V9QEP.tmp
memory/3428-24-0x0000000000400000-0x00000000006EE000-memory.dmp
memory/3428-137-0x0000000000400000-0x00000000006EE000-memory.dmp
memory/4412-11-0x0000000000400000-0x00000000004CC000-memory.dmp
memory/4412-14-0x0000000000401000-0x00000000004B7000-memory.dmp
memory/4412-139-0x0000000000400000-0x00000000004CC000-memory.dmp