Analysis Overview
SHA256
70c0f2d25b1d2eee2273fbd05ffa16e3cfe5880f9b2f66b66eed3029fd611a5b
Threat Level: Known bad
The file lockbit_v3_unpacked.7z.zip was found to be: Known bad.
Malicious Activity Summary
Lockbit family
Lockbit
Rule to detect Lockbit 3.0 ransomware Windows payload
Executes dropped EXE
Deletes itself
Drops desktop.ini file(s)
Drops file in System32 directory
Sets desktop wallpaper using registry
Suspicious use of NtSetInformationThreadHideFromDebugger
Unsigned PE
Enumerates physical storage devices
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of SetWindowsHookEx
Modifies registry class
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: RenamesItself
Suspicious use of WriteProcessMemory
Enumerates system info in registry
Modifies Control Panel
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-11 06:53
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
2024-03-11 06:53
Reported
2024-03-11 07:08
Platform
win11-20240221-en
Max time kernel
479s
Max time network
450s
Command Line
Signatures
Lockbit
Rule to detect Lockbit 3.0 ransomware Windows payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\801E.tmp | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\801E.tmp | N/A |
Drops desktop.ini file(s)
| Description | Indicator | Process | Target |
| File opened for modification | C:\$Recycle.Bin\S-1-5-21-4181651180-3163410697-3990547336-1000\desktop.ini | C:\Users\Admin\AppData\Local\Temp\lockbit_v3_unpacked.exe | N/A |
| File opened for modification | F:\$RECYCLE.BIN\S-1-5-21-4181651180-3163410697-3990547336-1000\desktop.ini | C:\Users\Admin\AppData\Local\Temp\lockbit_v3_unpacked.exe | N/A |
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\PP6lbdnqbpo_hm1uv25s5u83rvd.TMP | C:\Windows\system32\printfilterpipelinesvc.exe | N/A |
| File created | C:\Windows\system32\spool\PRINTERS\PPcmuobsmmaiy1d8zs4g97098od.TMP | C:\Windows\system32\printfilterpipelinesvc.exe | N/A |
| File created | C:\Windows\system32\spool\PRINTERS\PP5sb7g51y08g5pz938pxfzsb.TMP | C:\Windows\system32\printfilterpipelinesvc.exe | N/A |
Sets desktop wallpaper using registry
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-4181651180-3163410697-3990547336-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\HLJkNskOq.bmp" | C:\Users\Admin\AppData\Local\Temp\lockbit_v3_unpacked.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-4181651180-3163410697-3990547336-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\HLJkNskOq.bmp" | C:\Users\Admin\AppData\Local\Temp\lockbit_v3_unpacked.exe | N/A |
Suspicious use of NtSetInformationThreadHideFromDebugger
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\lockbit_v3_unpacked.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\lockbit_v3_unpacked.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\lockbit_v3_unpacked.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\lockbit_v3_unpacked.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\lockbit_v3_unpacked.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\lockbit_v3_unpacked.exe | N/A |
| N/A | N/A | C:\ProgramData\801E.tmp | N/A |
| N/A | N/A | C:\ProgramData\801E.tmp | N/A |
| N/A | N/A | C:\ProgramData\801E.tmp | N/A |
| N/A | N/A | C:\ProgramData\801E.tmp | N/A |
| N/A | N/A | C:\ProgramData\801E.tmp | N/A |
| N/A | N/A | C:\ProgramData\801E.tmp | N/A |
Enumerates physical storage devices
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-1-5-21-4181651180-3163410697-3990547336-1000\Control Panel\Desktop | C:\Users\Admin\AppData\Local\Temp\lockbit_v3_unpacked.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-4181651180-3163410697-3990547336-1000\Control Panel\Desktop\WallpaperStyle = "10" | C:\Users\Admin\AppData\Local\Temp\lockbit_v3_unpacked.exe | N/A |
Modifies registry class
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\.HLJkNskOq | C:\Users\Admin\AppData\Local\Temp\lockbit_v3_unpacked.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\.HLJkNskOq\ = "HLJkNskOq" | C:\Users\Admin\AppData\Local\Temp\lockbit_v3_unpacked.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\HLJkNskOq\DefaultIcon | C:\Users\Admin\AppData\Local\Temp\lockbit_v3_unpacked.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Classes\HLJkNskOq | C:\Users\Admin\AppData\Local\Temp\lockbit_v3_unpacked.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Classes\HLJkNskOq\DefaultIcon\ = "C:\\ProgramData\\HLJkNskOq.ico" | C:\Users\Admin\AppData\Local\Temp\lockbit_v3_unpacked.exe | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: RenamesItself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\ProgramData\801E.tmp | N/A |
| N/A | N/A | C:\ProgramData\801E.tmp | N/A |
| N/A | N/A | C:\ProgramData\801E.tmp | N/A |
| N/A | N/A | C:\ProgramData\801E.tmp | N/A |
| N/A | N/A | C:\ProgramData\801E.tmp | N/A |
| N/A | N/A | C:\ProgramData\801E.tmp | N/A |
| N/A | N/A | C:\ProgramData\801E.tmp | N/A |
| N/A | N/A | C:\ProgramData\801E.tmp | N/A |
| N/A | N/A | C:\ProgramData\801E.tmp | N/A |
| N/A | N/A | C:\ProgramData\801E.tmp | N/A |
| N/A | N/A | C:\ProgramData\801E.tmp | N/A |
| N/A | N/A | C:\ProgramData\801E.tmp | N/A |
| N/A | N/A | C:\ProgramData\801E.tmp | N/A |
| N/A | N/A | C:\ProgramData\801E.tmp | N/A |
| N/A | N/A | C:\ProgramData\801E.tmp | N/A |
| N/A | N/A | C:\ProgramData\801E.tmp | N/A |
| N/A | N/A | C:\ProgramData\801E.tmp | N/A |
| N/A | N/A | C:\ProgramData\801E.tmp | N/A |
| N/A | N/A | C:\ProgramData\801E.tmp | N/A |
| N/A | N/A | C:\ProgramData\801E.tmp | N/A |
| N/A | N/A | C:\ProgramData\801E.tmp | N/A |
| N/A | N/A | C:\ProgramData\801E.tmp | N/A |
| N/A | N/A | C:\ProgramData\801E.tmp | N/A |
| N/A | N/A | C:\ProgramData\801E.tmp | N/A |
| N/A | N/A | C:\ProgramData\801E.tmp | N/A |
| N/A | N/A | C:\ProgramData\801E.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\lockbit_v3_unpacked.exe
"C:\Users\Admin\AppData\Local\Temp\lockbit_v3_unpacked.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\{8308E22A-4214-4D90-AE36-EB04B283AE7A}.xps" 133546139364300000
C:\ProgramData\801E.tmp
"C:\ProgramData\801E.tmp"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\801E.tmp >> NUL
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 2.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 194.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 22.236.111.52.in-addr.arpa | udp |
Files
memory/4032-0-0x0000000000400000-0x000000000042C000-memory.dmp
memory/4032-1-0x0000000002620000-0x0000000002630000-memory.dmp
memory/4032-3-0x0000000002620000-0x0000000002630000-memory.dmp
memory/4032-2-0x0000000002620000-0x0000000002630000-memory.dmp
C:\$Recycle.Bin\S-1-5-21-4181651180-3163410697-3990547336-1000\VVVVVVVVVVV
| MD5 | 2cd816983a79d70cbd55ae1f4f139b1a |
| SHA1 | d7e07399d1126c09675533cc4a0b2fedda4c1509 |
| SHA256 | f8825714d2fbb2b82aec970113d0fed4cb996869b2b31dbdad176c99e08c4e64 |
| SHA512 | 1032c009f0755bea89f008fe48587ddb660a438e46fb03bcfd6d48cdcca369b1a0c52d16fe3781705dd87fe591a47bccbabdc01b1d940ef5a680f4a6a2855c7b |
F:\$RECYCLE.BIN\S-1-5-21-4181651180-3163410697-3990547336-1000\DDDDDDDDDDD
| MD5 | f34c8e850cec05528a7cff36dd9de114 |
| SHA1 | d6eb4ff81cf3d40cda9fbc1dcfb125d04ed1460e |
| SHA256 | 5545682bc760d381b9b476f73167763975f8c3e181b13fa5131ac6aaa667e700 |
| SHA512 | 50c2be3f4a9ebcf51eaffedf39a8fabf8a0f0db4e2f9930151a8dc3969ea1439f557d2f8b108ee24c0c5685cbca3cdb2e44a42682f7de75e121bf73c39f38cdf |
C:\Users\HLJkNskOq.README.txt
| MD5 | 3ee9ee4722b32213f37931bf5822eea1 |
| SHA1 | f53053c66b5f7ba6647020b783e6054c83ad8c8d |
| SHA256 | 6a50b003049e131dec77035495717177f9cc83e5f81b50a3d78b5ccee1bc38c7 |
| SHA512 | 72df4d50b390fc824baf853d1cc32c4cd53136a7d3386ef07b78f4fec7676ea49b0af564992d07ed30e020b775b5ad32c9391caf73424e97d8aa19eced0bce01 |
memory/4636-318-0x00007FF876520000-0x00007FF876729000-memory.dmp
memory/4032-317-0x0000000000400000-0x000000000042C000-memory.dmp
memory/4636-337-0x00007FF876520000-0x00007FF876729000-memory.dmp
memory/4636-349-0x00007FF8365B0000-0x00007FF8365C0000-memory.dmp
memory/4636-350-0x00007FF876520000-0x00007FF876729000-memory.dmp
memory/4636-353-0x00007FF876520000-0x00007FF876729000-memory.dmp
memory/4636-352-0x00007FF8365B0000-0x00007FF8365C0000-memory.dmp
memory/4636-354-0x00007FF876520000-0x00007FF876729000-memory.dmp
memory/4636-355-0x00007FF876520000-0x00007FF876729000-memory.dmp
memory/4636-351-0x00007FF876520000-0x00007FF876729000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDDDDDDDDD
| MD5 | 772ea5172e1eec1a08dea97c413a1460 |
| SHA1 | 7ce9008c5f35f924436d1d69cf66d8a42d105fa1 |
| SHA256 | 8f6e5bc4bec802bf1487f928d8b6552ab5064311e6199418f1e33687d79d8c22 |
| SHA512 | 283b76e6fa92fc655d17fc1ff510300215bbac69157c15bac9d38c7adc43767a6cb12d05c0c8ab2b878f4ce92b1bfe4feba2f8640c61b38ec1d0bc0734120534 |
memory/4636-319-0x00007FF8365B0000-0x00007FF8365C0000-memory.dmp
memory/4636-316-0x00007FF8365B0000-0x00007FF8365C0000-memory.dmp
C:\ProgramData\801E.tmp
| MD5 | 294e9f64cb1642dd89229fff0592856b |
| SHA1 | 97b148c27f3da29ba7b18d6aee8a0db9102f47c9 |
| SHA256 | 917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2 |
| SHA512 | b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf |
memory/4636-313-0x00007FF8365B0000-0x00007FF8365C0000-memory.dmp
memory/3384-356-0x000000007FE70000-0x000000007FE71000-memory.dmp
memory/3384-357-0x0000000002620000-0x0000000002630000-memory.dmp
memory/4636-358-0x00007FF833A90000-0x00007FF833AA0000-memory.dmp
memory/3384-359-0x000000007FE50000-0x000000007FE51000-memory.dmp
memory/3384-360-0x000000007FDF0000-0x000000007FDF1000-memory.dmp
memory/4636-362-0x00007FF833A90000-0x00007FF833AA0000-memory.dmp
memory/4636-361-0x00007FF874850000-0x00007FF87490D000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\{81BD586D-AC3E-4A4A-BD84-4EFFFA806C5F}
| MD5 | a9ef184a1eb5f94aa773f74279101a9e |
| SHA1 | 41f4fa4bb7224875866ef7e3144492d27ed345c9 |
| SHA256 | 53691e0de5f6a2b3b09278ca19bd0be50d3b269d12b9d1c7574ab2a1ec061b13 |
| SHA512 | bfb676591479663e94093664e55a2944f736e819a84dcbe7310df250b5a590451c2451c4e25202dcba88a02d39a65ada59aa80b5559ed64797d5232c0df1d743 |
memory/4636-379-0x00007FF876520000-0x00007FF876729000-memory.dmp
memory/3384-381-0x0000000002620000-0x0000000002630000-memory.dmp
memory/3384-380-0x0000000002620000-0x0000000002630000-memory.dmp
memory/4636-382-0x00007FF874850000-0x00007FF87490D000-memory.dmp
memory/3384-384-0x000000007FE10000-0x000000007FE11000-memory.dmp
memory/3384-385-0x000000007FE30000-0x000000007FE31000-memory.dmp