Analysis Overview
SHA256
f4b0e3079b13b0c117d358461348e4b15986b4b9173504605bc3035c53527df1
Threat Level: Known bad
The file 2025-04-20_971b1c13e0efcb5b4ff57b5c67dff89f_darkside_elex_lockbit was found to be: Known bad.
Malicious Activity Summary
Lockbit family
Rule to detect Lockbit 3.0 ransomware Windows payload
Lockbit
Renames multiple (588) files with added filename extension
Renames multiple (681) files with added filename extension
Executes dropped EXE
Checks computer location settings
Reads user/profile data of web browsers
Deletes itself
Indicator Removal: File Deletion
Drops desktop.ini file(s)
Drops file in System32 directory
Sets desktop wallpaper using registry
Suspicious use of NtSetInformationThreadHideFromDebugger
System Location Discovery: System Language Discovery
Enumerates physical storage devices
Unsigned PE
Suspicious use of WriteProcessMemory
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Modifies Control Panel
Suspicious behavior: RenamesItself
Suspicious use of SetWindowsHookEx
Checks processor information in registry
Enumerates system info in registry
MITRE ATT&CK
Enterprise Matrix V16
Analysis: static1
Detonation Overview
Reported
2025-04-20 15:08
Signatures
Lockbit family
Rule to detect Lockbit 3.0 ransomware Windows payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2025-04-20 15:08
Reported
2025-04-20 15:10
Platform
win10v2004-20250314-en
Max time kernel
148s
Max time network
147s
Command Line
Signatures
Lockbit
Lockbit family
Renames multiple (681) files with added filename extension
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-83325578-304917428-1200496059-1000\Control Panel\International\Geo\Nation | C:\ProgramData\A578.tmp | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\A578.tmp | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\A578.tmp | N/A |
Reads user/profile data of web browsers
Drops desktop.ini file(s)
| Description | Indicator | Process | Target |
| File opened for modification | F:\$RECYCLE.BIN\S-1-5-21-83325578-304917428-1200496059-1000\desktop.ini | C:\Users\Admin\AppData\Local\Temp\2025-04-20_971b1c13e0efcb5b4ff57b5c67dff89f_darkside_elex_lockbit.exe | N/A |
| File opened for modification | C:\$Recycle.Bin\S-1-5-21-83325578-304917428-1200496059-1000\desktop.ini | C:\Users\Admin\AppData\Local\Temp\2025-04-20_971b1c13e0efcb5b4ff57b5c67dff89f_darkside_elex_lockbit.exe | N/A |
Indicator Removal: File Deletion
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\system32\spool\PRINTERS\00002.SPL | C:\Windows\splwow64.exe | N/A |
| File created | C:\Windows\system32\spool\PRINTERS\PPuwgr798dqir79b9560dv7mhyd.TMP | C:\Windows\system32\printfilterpipelinesvc.exe | N/A |
| File created | C:\Windows\system32\spool\PRINTERS\PPb41ztq24o6zz5vys3_vn865nb.TMP | C:\Windows\system32\printfilterpipelinesvc.exe | N/A |
| File created | C:\Windows\system32\spool\PRINTERS\PPd83s8epyppev0zk37qjtpdc4.TMP | C:\Windows\system32\printfilterpipelinesvc.exe | N/A |
Sets desktop wallpaper using registry
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-83325578-304917428-1200496059-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\V86sTiCVN.bmp" | C:\Users\Admin\AppData\Local\Temp\2025-04-20_971b1c13e0efcb5b4ff57b5c67dff89f_darkside_elex_lockbit.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-83325578-304917428-1200496059-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\V86sTiCVN.bmp" | C:\Users\Admin\AppData\Local\Temp\2025-04-20_971b1c13e0efcb5b4ff57b5c67dff89f_darkside_elex_lockbit.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\2025-04-20_971b1c13e0efcb5b4ff57b5c67dff89f_darkside_elex_lockbit.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\ProgramData\A578.tmp | N/A |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
Enumerates system info in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\Hardware\Description\System\BIOS | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
Modifies Control Panel
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-83325578-304917428-1200496059-1000\Control Panel\Desktop | C:\Users\Admin\AppData\Local\Temp\2025-04-20_971b1c13e0efcb5b4ff57b5c67dff89f_darkside_elex_lockbit.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-83325578-304917428-1200496059-1000\Control Panel\Desktop\WallpaperStyle = "10" | C:\Users\Admin\AppData\Local\Temp\2025-04-20_971b1c13e0efcb5b4ff57b5c67dff89f_darkside_elex_lockbit.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\.V86sTiCVN | C:\Users\Admin\AppData\Local\Temp\2025-04-20_971b1c13e0efcb5b4ff57b5c67dff89f_darkside_elex_lockbit.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\.V86sTiCVN\ = "V86sTiCVN" | C:\Users\Admin\AppData\Local\Temp\2025-04-20_971b1c13e0efcb5b4ff57b5c67dff89f_darkside_elex_lockbit.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\V86sTiCVN\DefaultIcon | C:\Users\Admin\AppData\Local\Temp\2025-04-20_971b1c13e0efcb5b4ff57b5c67dff89f_darkside_elex_lockbit.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\V86sTiCVN | C:\Users\Admin\AppData\Local\Temp\2025-04-20_971b1c13e0efcb5b4ff57b5c67dff89f_darkside_elex_lockbit.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\V86sTiCVN\DefaultIcon\ = "C:\\ProgramData\\V86sTiCVN.ico" | C:\Users\Admin\AppData\Local\Temp\2025-04-20_971b1c13e0efcb5b4ff57b5c67dff89f_darkside_elex_lockbit.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\A578.tmp | N/A |
| N/A | N/A | C:\ProgramData\A578.tmp | N/A |
| N/A | N/A | C:\ProgramData\A578.tmp | N/A |
| N/A | N/A | C:\ProgramData\A578.tmp | N/A |
| N/A | N/A | C:\ProgramData\A578.tmp | N/A |
| N/A | N/A | C:\ProgramData\A578.tmp | N/A |
| N/A | N/A | C:\ProgramData\A578.tmp | N/A |
| N/A | N/A | C:\ProgramData\A578.tmp | N/A |
| N/A | N/A | C:\ProgramData\A578.tmp | N/A |
| N/A | N/A | C:\ProgramData\A578.tmp | N/A |
| N/A | N/A | C:\ProgramData\A578.tmp | N/A |
| N/A | N/A | C:\ProgramData\A578.tmp | N/A |
| N/A | N/A | C:\ProgramData\A578.tmp | N/A |
| N/A | N/A | C:\ProgramData\A578.tmp | N/A |
| N/A | N/A | C:\ProgramData\A578.tmp | N/A |
| N/A | N/A | C:\ProgramData\A578.tmp | N/A |
| N/A | N/A | C:\ProgramData\A578.tmp | N/A |
| N/A | N/A | C:\ProgramData\A578.tmp | N/A |
| N/A | N/A | C:\ProgramData\A578.tmp | N/A |
| N/A | N/A | C:\ProgramData\A578.tmp | N/A |
| N/A | N/A | C:\ProgramData\A578.tmp | N/A |
| N/A | N/A | C:\ProgramData\A578.tmp | N/A |
| N/A | N/A | C:\ProgramData\A578.tmp | N/A |
| N/A | N/A | C:\ProgramData\A578.tmp | N/A |
| N/A | N/A | C:\ProgramData\A578.tmp | N/A |
| N/A | N/A | C:\ProgramData\A578.tmp | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\2025-04-20_971b1c13e0efcb5b4ff57b5c67dff89f_darkside_elex_lockbit.exe
"C:\Users\Admin\AppData\Local\Temp\2025-04-20_971b1c13e0efcb5b4ff57b5c67dff89f_darkside_elex_lockbit.exe"
C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
C:\Windows\system32\printfilterpipelinesvc.exe
C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
/insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{C66AF106-2AD9-499B-8D48-B0783264C48A}.xps" 133896352981830000
C:\ProgramData\A578.tmp
"C:\ProgramData\A578.tmp"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\A578.tmp >> NUL
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | roaming.officeapps.live.com | udp |
| IE | 52.109.76.243:443 | roaming.officeapps.live.com | tcp |
| US | 8.8.8.8:53 | c.pki.goog | udp |
| NL | 173.194.69.94:80 | c.pki.goog | tcp |
Files
memory/2060-2-0x00000000009F0000-0x0000000000A00000-memory.dmp
memory/2060-1-0x00000000009F0000-0x0000000000A00000-memory.dmp
memory/2060-0-0x00000000009F0000-0x0000000000A00000-memory.dmp
C:\$Recycle.Bin\S-1-5-21-83325578-304917428-1200496059-1000\XXXXXXXXXXX
| MD5 | 742b51fd6c56a8790afbea809906af9d |
| SHA1 | 4b8bd3a25ca999a57e79692707d3eef71cb2e69d |
| SHA256 | 1250a685f398fac5cf7ccb91260706b10d5d631edf767b8972c5f7ff2724e450 |
| SHA512 | 93035519c24c853a12183a480d8fa929627ab1cf00bcd1476618aa86c020b0a91fdc8bab0dd1be610d88e6b4e253336b559a2abfb41d015755ff14e6ecc76d9e |
F:\$RECYCLE.BIN\S-1-5-21-83325578-304917428-1200496059-1000\EEEEEEEEEEE
| MD5 | c43c9774b98991bb1aa099bf4c6d8701 |
| SHA1 | a1973912db686d54bfff375fef881f1ccf9c2313 |
| SHA256 | aa0d5e67c8db0b6299654b512a167b66cf86e6b0ff47c76874281a6e90f62bd8 |
| SHA512 | 55bda8296220bde7b6ab6f0290cac254c79bc8c324d0acf5bc5dc1b9a03a739d2ba7d6dceaf8e0d2e336731578071a73ca5d2acb9da474697c8d466214474a9a |
C:\V86sTiCVN.README.txt
| MD5 | 9edc91d12d8ee9e2e16f551f9d931c0b |
| SHA1 | e70c4409bfe78728a7aca6a76649ba42457e5d9d |
| SHA256 | 23034115797924443bc8f71f34dfb7a1cdf0cddc5b4794b30ce7cefb254f4c22 |
| SHA512 | 38782c7fa1023a92926a4ab993bde77b5d21e24eb5ab33520f400cd97fcfb1ab4067a8b6ca2257dc0c6499f2a00b0b11fef85ba5a448ab40a853f77047a1d10f |
memory/2060-3562-0x00000000009F0000-0x0000000000A00000-memory.dmp
memory/2060-3563-0x00000000009F0000-0x0000000000A00000-memory.dmp
memory/2060-3564-0x00000000009F0000-0x0000000000A00000-memory.dmp
memory/1912-3576-0x00007FFB94210000-0x00007FFB94220000-memory.dmp
C:\ProgramData\A578.tmp
| MD5 | 294e9f64cb1642dd89229fff0592856b |
| SHA1 | 97b148c27f3da29ba7b18d6aee8a0db9102f47c9 |
| SHA256 | 917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2 |
| SHA512 | b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf |
memory/1912-3581-0x00007FFB94210000-0x00007FFB94220000-memory.dmp
memory/1912-3580-0x00007FFB94210000-0x00007FFB94220000-memory.dmp
memory/1912-3583-0x00007FFB94210000-0x00007FFB94220000-memory.dmp
memory/1912-3584-0x00007FFB94210000-0x00007FFB94220000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
| MD5 | b5bb8f9f290bca94d108c8f10bfb887f |
| SHA1 | f23798087b2ab760c1d0e1037a6e69aa532f2b8c |
| SHA256 | 9c8fdf0247a82c9bf459554053ae8baba3b4e2c68aa0002575fef4a7360f851f |
| SHA512 | c79a04297e89b60fa296b14ca1b34778d42226b4d6cc15627a1a03db865f8f3c229edb68b43d6729546f7f18df9dffc12594e51e43aaaa1e543ce051dd195129 |
memory/1912-3613-0x00007FFB92120000-0x00007FFB92130000-memory.dmp
memory/1912-3614-0x00007FFB92120000-0x00007FFB92130000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\{1858CEE2-803E-4B52-8C34-34B883C8BAE7}
| MD5 | 496e82b18f3b0d4fe6af88d30c847d26 |
| SHA1 | 6942cb6d89d0942b2ec6fae18b727111546dc5cf |
| SHA256 | a550a82aac7d1fbf4c871bf784de3330e1d64701b5a6016e766b520c2c927b04 |
| SHA512 | d3aecd59484bd593152b12e2418e0756673ca682a888c49f23ca06b6a9af261206b0b7781b8d1672680d5c839e959ccdca040dd4089885f9178112181212481b |
C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2
| MD5 | 569dd0d01785ea3dbdef7f17de8b4bf6 |
| SHA1 | 32ec87ade910bc7625e3b5eec77167af871b1875 |
| SHA256 | d9a49988fd026e7d0830ec08d295cf59d5c2b1690f3fbb5e3bd559a1fccbdc8b |
| SHA512 | f5c780904ad262251dd02973fde0eb75fe72e38f670920f5d53c5dd81b4dc1b4f10cbbadc4d09502e5480050b45611bfcba18850a83c80d51b0d00c911c4ac19 |
Analysis: behavioral2
Detonation Overview
Submitted
2025-04-20 15:08
Reported
2025-04-20 15:10
Platform
win11-20250410-en
Max time kernel
147s
Max time network
140s
Command Line
Signatures
Lockbit
Lockbit family
Renames multiple (588) files with added filename extension
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\762B.tmp | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\762B.tmp | N/A |
Reads user/profile data of web browsers
Drops desktop.ini file(s)
| Description | Indicator | Process | Target |
| File opened for modification | C:\$Recycle.Bin\S-1-5-21-599783296-1627459723-2423478968-1000\desktop.ini | C:\Users\Admin\AppData\Local\Temp\2025-04-20_971b1c13e0efcb5b4ff57b5c67dff89f_darkside_elex_lockbit.exe | N/A |
| File opened for modification | F:\$RECYCLE.BIN\S-1-5-21-599783296-1627459723-2423478968-1000\desktop.ini | C:\Users\Admin\AppData\Local\Temp\2025-04-20_971b1c13e0efcb5b4ff57b5c67dff89f_darkside_elex_lockbit.exe | N/A |
Indicator Removal: File Deletion
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\system32\spool\PRINTERS\PPylp2z8n1_lxim73p5axvnyz0d.TMP | C:\Windows\system32\printfilterpipelinesvc.exe | N/A |
| File created | C:\Windows\system32\spool\PRINTERS\00002.SPL | C:\Windows\splwow64.exe | N/A |
| File created | C:\Windows\system32\spool\PRINTERS\PPsrhg0jf6q0gmu7ene452z0sm.TMP | C:\Windows\system32\printfilterpipelinesvc.exe | N/A |
| File created | C:\Windows\system32\spool\PRINTERS\PPt3027ugp20_lvbwycbq7xv4bc.TMP | C:\Windows\system32\printfilterpipelinesvc.exe | N/A |
Sets desktop wallpaper using registry
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-599783296-1627459723-2423478968-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\V86sTiCVN.bmp" | C:\Users\Admin\AppData\Local\Temp\2025-04-20_971b1c13e0efcb5b4ff57b5c67dff89f_darkside_elex_lockbit.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-599783296-1627459723-2423478968-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\V86sTiCVN.bmp" | C:\Users\Admin\AppData\Local\Temp\2025-04-20_971b1c13e0efcb5b4ff57b5c67dff89f_darkside_elex_lockbit.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
Enumerates physical storage devices
System Location Discovery: System Language Discovery
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Users\Admin\AppData\Local\Temp\2025-04-20_971b1c13e0efcb5b4ff57b5c67dff89f_darkside_elex_lockbit.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\ProgramData\762B.tmp | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language | C:\Windows\SysWOW64\cmd.exe | N/A |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
Enumerates system info in registry
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
| Key opened | \REGISTRY\MACHINE\Hardware\Description\System\BIOS | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
Modifies Control Panel
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-599783296-1627459723-2423478968-1000\Control Panel\Desktop | C:\Users\Admin\AppData\Local\Temp\2025-04-20_971b1c13e0efcb5b4ff57b5c67dff89f_darkside_elex_lockbit.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-599783296-1627459723-2423478968-1000\Control Panel\Desktop\WallpaperStyle = "10" | C:\Users\Admin\AppData\Local\Temp\2025-04-20_971b1c13e0efcb5b4ff57b5c67dff89f_darkside_elex_lockbit.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\.V86sTiCVN | C:\Users\Admin\AppData\Local\Temp\2025-04-20_971b1c13e0efcb5b4ff57b5c67dff89f_darkside_elex_lockbit.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\.V86sTiCVN\ = "V86sTiCVN" | C:\Users\Admin\AppData\Local\Temp\2025-04-20_971b1c13e0efcb5b4ff57b5c67dff89f_darkside_elex_lockbit.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\V86sTiCVN\DefaultIcon | C:\Users\Admin\AppData\Local\Temp\2025-04-20_971b1c13e0efcb5b4ff57b5c67dff89f_darkside_elex_lockbit.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\V86sTiCVN | C:\Users\Admin\AppData\Local\Temp\2025-04-20_971b1c13e0efcb5b4ff57b5c67dff89f_darkside_elex_lockbit.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\V86sTiCVN\DefaultIcon\ = "C:\\ProgramData\\V86sTiCVN.ico" | C:\Users\Admin\AppData\Local\Temp\2025-04-20_971b1c13e0efcb5b4ff57b5c67dff89f_darkside_elex_lockbit.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\762B.tmp | N/A |
| N/A | N/A | C:\ProgramData\762B.tmp | N/A |
| N/A | N/A | C:\ProgramData\762B.tmp | N/A |
| N/A | N/A | C:\ProgramData\762B.tmp | N/A |
| N/A | N/A | C:\ProgramData\762B.tmp | N/A |
| N/A | N/A | C:\ProgramData\762B.tmp | N/A |
| N/A | N/A | C:\ProgramData\762B.tmp | N/A |
| N/A | N/A | C:\ProgramData\762B.tmp | N/A |
| N/A | N/A | C:\ProgramData\762B.tmp | N/A |
| N/A | N/A | C:\ProgramData\762B.tmp | N/A |
| N/A | N/A | C:\ProgramData\762B.tmp | N/A |
| N/A | N/A | C:\ProgramData\762B.tmp | N/A |
| N/A | N/A | C:\ProgramData\762B.tmp | N/A |
| N/A | N/A | C:\ProgramData\762B.tmp | N/A |
| N/A | N/A | C:\ProgramData\762B.tmp | N/A |
| N/A | N/A | C:\ProgramData\762B.tmp | N/A |
| N/A | N/A | C:\ProgramData\762B.tmp | N/A |
| N/A | N/A | C:\ProgramData\762B.tmp | N/A |
| N/A | N/A | C:\ProgramData\762B.tmp | N/A |
| N/A | N/A | C:\ProgramData\762B.tmp | N/A |
| N/A | N/A | C:\ProgramData\762B.tmp | N/A |
| N/A | N/A | C:\ProgramData\762B.tmp | N/A |
| N/A | N/A | C:\ProgramData\762B.tmp | N/A |
| N/A | N/A | C:\ProgramData\762B.tmp | N/A |
| N/A | N/A | C:\ProgramData\762B.tmp | N/A |
| N/A | N/A | C:\ProgramData\762B.tmp | N/A |
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\2025-04-20_971b1c13e0efcb5b4ff57b5c67dff89f_darkside_elex_lockbit.exe
"C:\Users\Admin\AppData\Local\Temp\2025-04-20_971b1c13e0efcb5b4ff57b5c67dff89f_darkside_elex_lockbit.exe"
C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
C:\Windows\system32\printfilterpipelinesvc.exe
C:\Windows\system32\printfilterpipelinesvc.exe -Embedding
C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE
/insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{FCB93997-9C46-465A-993F-DAF0EBFE2238}.xps" 133896352967590000
C:\ProgramData\762B.tmp
"C:\ProgramData\762B.tmp"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\762B.tmp >> NUL
Network
| Country | Destination | Domain | Proto |
| IE | 52.109.76.243:443 | roaming.officeapps.live.com | tcp |
| NL | 173.194.69.94:80 | c.pki.goog | tcp |
Files
memory/3020-0-0x00000000031D0000-0x00000000031E0000-memory.dmp
memory/3020-2-0x00000000031D0000-0x00000000031E0000-memory.dmp
memory/3020-1-0x00000000031D0000-0x00000000031E0000-memory.dmp
C:\$Recycle.Bin\S-1-5-21-599783296-1627459723-2423478968-1000\JJJJJJJJJJJ
| MD5 | 91033b3d59f65017a529bb0a109b7c07 |
| SHA1 | 7cb56754e15310008efc439566740847314173f2 |
| SHA256 | d20428a5b6eb0bcd2558fcbd3ecab31d89451dbdd3956336f05e112a04444390 |
| SHA512 | 09bef8b5ac06d7723bd41e47ee0508b75f90d235ecfe120cb513a4293dfa9c1aa15f4097d79508ad49f65f12767f7ababfedb6565848225a033af87b8db71695 |
F:\$RECYCLE.BIN\S-1-5-21-599783296-1627459723-2423478968-1000\DDDDDDDDDDD
| MD5 | 9b01fbca2b2c155459eb316b38b47e70 |
| SHA1 | 266eb2bc748e764ae13672c90fe378a3e5257c1e |
| SHA256 | 1c10b1797b4df711af5e3aeed5a6b9f40b109b31e75c97117a3c70e30827f5cc |
| SHA512 | 1c89e24f0500e49fde33c50f26642927ac9ff416aa85eebfc3fbb6ae82911f2244aa5dc5d8339bdea19b64859aabb000c383a000ab753cef07623bb0831e30ce |
C:\Users\V86sTiCVN.README.txt
| MD5 | b68e8700aaef67efa52ca6cc001e1ebc |
| SHA1 | 814a1dabc523fb9db85484e5df51d9e9a191593c |
| SHA256 | 617decb61b0a22b3bc50423b030e37df13d32f3c096dbf37d7e03cb9bd8b4eb2 |
| SHA512 | 29f6d12968fe911cadfde2932c3ebffab71570b6fefd42dcc22aa2a595d8c8df29c29e41c4667a1a37f2de4f22fe4b0fa7969468d48f6351b13796337c6ad1fe |
memory/3020-3559-0x00000000031D0000-0x00000000031E0000-memory.dmp
memory/3020-3560-0x00000000031D0000-0x00000000031E0000-memory.dmp
memory/3020-3561-0x00000000031D0000-0x00000000031E0000-memory.dmp
C:\ProgramData\762B.tmp
| MD5 | 294e9f64cb1642dd89229fff0592856b |
| SHA1 | 97b148c27f3da29ba7b18d6aee8a0db9102f47c9 |
| SHA256 | 917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2 |
| SHA512 | b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf |
memory/3708-3576-0x00007FF930B50000-0x00007FF930B60000-memory.dmp
memory/3708-3578-0x00007FF930B50000-0x00007FF930B60000-memory.dmp
memory/3708-3577-0x00007FF930B50000-0x00007FF930B60000-memory.dmp
memory/3708-3580-0x00007FF930B50000-0x00007FF930B60000-memory.dmp
memory/3708-3581-0x00007FF930B50000-0x00007FF930B60000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
| MD5 | e3d37add22b687d836ff72de86572702 |
| SHA1 | eeadedb1e7215a96bffbb3945dff05e052c82d93 |
| SHA256 | f5f3bc9e35d876bae48df6de82392418e2d4416f928325722d68133a4674740f |
| SHA512 | 5af379bccdcfde0ab792a1a92d9a114435e46ba58b8271da258926835ba6904aa9941a050f8f364b0ac84ba7ee932f838e01bf500c909ce8f8fb67423c38d01e |
memory/3708-3610-0x00007FF92E190000-0x00007FF92E1A0000-memory.dmp
memory/3708-3611-0x00007FF92E190000-0x00007FF92E1A0000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\{D3178B67-1392-4681-9BAC-761DD79E0879}
| MD5 | 6881b836a342607405f90ca9b88f3d3a |
| SHA1 | 1a4b4e5b3e751307122e85a75558436c9bea67c0 |
| SHA256 | 7797b4fcab5dc6a637a8a97683e9b1e30e74d5ada65d6f0b6f4379f9c0c8d931 |
| SHA512 | 82c7b72df66a69e34e5ce84ade1d8a772387ad4649e41740e49865cde8ce362c7c02fce828c1226468442155ffa34cef65b3036f4cbe1c57453a1ef7a6f282e5 |
C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2
| MD5 | e28e8cf7fbc1b3c3117e501e7cefba32 |
| SHA1 | d677e0c9940dffa2815c746443d2e77d88780770 |
| SHA256 | fcc695367e4acddcf6ec4fba23b0777c558ebfb0b170f82751a7584bac0c9aba |
| SHA512 | b35104077a57da5930df15b96d6c58a8c113a6eebe2d8c82423c84bb42923cf34dcb52ba72db7d5a6fd2cf6da7ba76442a02e8a8d1772eca2022bbba60b0d6e9 |