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Overview
overview
10Static
static
10Lockbit-Ra...er.exe
windows7-x64
9Lockbit-Ra...er.exe
windows10-2004-x64
9Lockbit-Ra...er.exe
windows7-x64
9Lockbit-Ra...er.exe
windows10-2004-x64
9Lockbit-Ra...en.exe
windows7-x64
9Lockbit-Ra...en.exe
windows10-2004-x64
9Lockbit-Ra...ME.vbs
windows7-x64
1Lockbit-Ra...ME.vbs
windows10-2004-x64
1Analysis
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max time kernel
146s -
max time network
145s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
26/11/2024, 14:51
Behavioral task
behavioral1
Sample
Lockbit-Ransomware-Builder-main/Builder.exe
Resource
win7-20240708-en
windows7-x64
Behavioral task
behavioral2
Sample
Lockbit-Ransomware-Builder-main/Builder.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral3
Sample
Lockbit-Ransomware-Builder-main/Decrypter.exe
Resource
win7-20240708-en
windows7-x64
Behavioral task
behavioral4
Sample
Lockbit-Ransomware-Builder-main/Decrypter.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral5
Sample
Lockbit-Ransomware-Builder-main/KeyGen.exe
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral6
Sample
Lockbit-Ransomware-Builder-main/KeyGen.exe
Resource
win10v2004-20241007-en
windows10-2004-x64
Behavioral task
behavioral7
Sample
Lockbit-Ransomware-Builder-main/README.vbs
Resource
win7-20240903-en
windows7-x64
Behavioral task
behavioral8
Sample
Lockbit-Ransomware-Builder-main/README.vbs
Resource
win10v2004-20241007-en
windows10-2004-x64
General
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Target
Lockbit-Ransomware-Builder-main/Decrypter.exe
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Size
146KB
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MD5
39c9477cf131ca5ccc05c8871c0e10e6
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SHA1
07b2581b2cb41053d09c4bb896aaabc1d28f2a7b
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SHA256
939281eac1c6e5aa2e4238a1e545e67b2609c15f517474b2a5133bb64fe9c1eb
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SHA512
689fd585232031f746b1573d3ed66ac329420611d4e1092ce6952b49ab0c168091726bd02189a4e183d1196ced4f51953e4eb25a5219a36f86d8f6761da9f129
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SSDEEP
1536:xzICS4AAwczUUf8y8gvMH+1zGSNAojMP95D1xDqk3sA9atm8z+L8QBfuSoyAMjwT:KqJogYkcSNm9V7D7352v+L8DnyAewT
Malware Config
Signatures
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Renames multiple (620) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation AD96.tmp -
Deletes itself 1 IoCs
pid Process 2836 AD96.tmp -
Executes dropped EXE 1 IoCs
pid Process 2836 AD96.tmp -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Drops desktop.ini file(s) 2 IoCs
description ioc Process File opened for modification C:\$Recycle.Bin\S-1-5-21-3756129449-3121373848-4276368241-1000\desktop.ini Decrypter.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3756129449-3121373848-4276368241-1000\desktop.ini Decrypter.exe -
Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
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Drops file in System32 directory 4 IoCs
description ioc Process File created C:\Windows\system32\spool\PRINTERS\00002.SPL splwow64.exe File created C:\Windows\system32\spool\PRINTERS\PPkgqxbz5gfucn9meo_irkyde3d.TMP printfilterpipelinesvc.exe File created C:\Windows\system32\spool\PRINTERS\PP0i0wr_rxjmn4s4yddxcjfckzb.TMP printfilterpipelinesvc.exe File created C:\Windows\system32\spool\PRINTERS\PP014pzh_ljwaou87h30f0n2sjd.TMP printfilterpipelinesvc.exe -
Sets desktop wallpaper using registry 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\1pvSvxmZY.bmp" Decrypter.exe Set value (str) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\1pvSvxmZY.bmp" Decrypter.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 2836 AD96.tmp -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Decrypter.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language AD96.tmp Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString ONENOTE.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 ONENOTE.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz ONENOTE.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS ONENOTE.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily ONENOTE.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU ONENOTE.EXE -
Modifies Control Panel 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\Desktop Decrypter.exe Set value (str) \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\Desktop\WallpaperStyle = "10" Decrypter.exe -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.1pvSvxmZY Decrypter.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.1pvSvxmZY\ = "1pvSvxmZY" Decrypter.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\1pvSvxmZY\DefaultIcon Decrypter.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\1pvSvxmZY Decrypter.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\1pvSvxmZY\DefaultIcon\ = "C:\\ProgramData\\1pvSvxmZY.ico" Decrypter.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe 4204 Decrypter.exe -
Suspicious behavior: RenamesItself 26 IoCs
pid Process 2836 AD96.tmp 2836 AD96.tmp 2836 AD96.tmp 2836 AD96.tmp 2836 AD96.tmp 2836 AD96.tmp 2836 AD96.tmp 2836 AD96.tmp 2836 AD96.tmp 2836 AD96.tmp 2836 AD96.tmp 2836 AD96.tmp 2836 AD96.tmp 2836 AD96.tmp 2836 AD96.tmp 2836 AD96.tmp 2836 AD96.tmp 2836 AD96.tmp 2836 AD96.tmp 2836 AD96.tmp 2836 AD96.tmp 2836 AD96.tmp 2836 AD96.tmp 2836 AD96.tmp 2836 AD96.tmp 2836 AD96.tmp -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeAssignPrimaryTokenPrivilege 4204 Decrypter.exe Token: SeBackupPrivilege 4204 Decrypter.exe Token: SeDebugPrivilege 4204 Decrypter.exe Token: 36 4204 Decrypter.exe Token: SeImpersonatePrivilege 4204 Decrypter.exe Token: SeIncBasePriorityPrivilege 4204 Decrypter.exe Token: SeIncreaseQuotaPrivilege 4204 Decrypter.exe Token: 33 4204 Decrypter.exe Token: SeManageVolumePrivilege 4204 Decrypter.exe Token: SeProfSingleProcessPrivilege 4204 Decrypter.exe Token: SeRestorePrivilege 4204 Decrypter.exe Token: SeSecurityPrivilege 4204 Decrypter.exe Token: SeSystemProfilePrivilege 4204 Decrypter.exe Token: SeTakeOwnershipPrivilege 4204 Decrypter.exe Token: SeShutdownPrivilege 4204 Decrypter.exe Token: SeDebugPrivilege 4204 Decrypter.exe Token: SeBackupPrivilege 4204 Decrypter.exe Token: SeBackupPrivilege 4204 Decrypter.exe Token: SeSecurityPrivilege 4204 Decrypter.exe Token: SeSecurityPrivilege 4204 Decrypter.exe Token: SeBackupPrivilege 4204 Decrypter.exe Token: SeBackupPrivilege 4204 Decrypter.exe Token: SeSecurityPrivilege 4204 Decrypter.exe Token: SeSecurityPrivilege 4204 Decrypter.exe Token: SeBackupPrivilege 4204 Decrypter.exe Token: SeBackupPrivilege 4204 Decrypter.exe Token: SeSecurityPrivilege 4204 Decrypter.exe Token: SeSecurityPrivilege 4204 Decrypter.exe Token: SeBackupPrivilege 4204 Decrypter.exe Token: SeBackupPrivilege 4204 Decrypter.exe Token: SeSecurityPrivilege 4204 Decrypter.exe Token: SeSecurityPrivilege 4204 Decrypter.exe Token: SeBackupPrivilege 4204 Decrypter.exe Token: SeBackupPrivilege 4204 Decrypter.exe Token: SeSecurityPrivilege 4204 Decrypter.exe Token: SeSecurityPrivilege 4204 Decrypter.exe Token: SeBackupPrivilege 4204 Decrypter.exe Token: SeBackupPrivilege 4204 Decrypter.exe Token: SeSecurityPrivilege 4204 Decrypter.exe Token: SeSecurityPrivilege 4204 Decrypter.exe Token: SeBackupPrivilege 4204 Decrypter.exe Token: SeBackupPrivilege 4204 Decrypter.exe Token: SeSecurityPrivilege 4204 Decrypter.exe Token: SeSecurityPrivilege 4204 Decrypter.exe Token: SeBackupPrivilege 4204 Decrypter.exe Token: SeBackupPrivilege 4204 Decrypter.exe Token: SeSecurityPrivilege 4204 Decrypter.exe Token: SeSecurityPrivilege 4204 Decrypter.exe Token: SeBackupPrivilege 4204 Decrypter.exe Token: SeBackupPrivilege 4204 Decrypter.exe Token: SeSecurityPrivilege 4204 Decrypter.exe Token: SeSecurityPrivilege 4204 Decrypter.exe Token: SeBackupPrivilege 4204 Decrypter.exe Token: SeBackupPrivilege 4204 Decrypter.exe Token: SeSecurityPrivilege 4204 Decrypter.exe Token: SeSecurityPrivilege 4204 Decrypter.exe Token: SeBackupPrivilege 4204 Decrypter.exe Token: SeBackupPrivilege 4204 Decrypter.exe Token: SeSecurityPrivilege 4204 Decrypter.exe Token: SeSecurityPrivilege 4204 Decrypter.exe Token: SeBackupPrivilege 4204 Decrypter.exe Token: SeBackupPrivilege 4204 Decrypter.exe Token: SeSecurityPrivilege 4204 Decrypter.exe Token: SeSecurityPrivilege 4204 Decrypter.exe -
Suspicious use of SetWindowsHookEx 13 IoCs
pid Process 4880 ONENOTE.EXE 4880 ONENOTE.EXE 4880 ONENOTE.EXE 4880 ONENOTE.EXE 4880 ONENOTE.EXE 4880 ONENOTE.EXE 4880 ONENOTE.EXE 4880 ONENOTE.EXE 4880 ONENOTE.EXE 4880 ONENOTE.EXE 4880 ONENOTE.EXE 4880 ONENOTE.EXE 4880 ONENOTE.EXE -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 4204 wrote to memory of 2696 4204 Decrypter.exe 87 PID 4204 wrote to memory of 2696 4204 Decrypter.exe 87 PID 4236 wrote to memory of 4880 4236 printfilterpipelinesvc.exe 93 PID 4236 wrote to memory of 4880 4236 printfilterpipelinesvc.exe 93 PID 4204 wrote to memory of 2836 4204 Decrypter.exe 94 PID 4204 wrote to memory of 2836 4204 Decrypter.exe 94 PID 4204 wrote to memory of 2836 4204 Decrypter.exe 94 PID 4204 wrote to memory of 2836 4204 Decrypter.exe 94 PID 2836 wrote to memory of 2576 2836 AD96.tmp 95 PID 2836 wrote to memory of 2576 2836 AD96.tmp 95 PID 2836 wrote to memory of 2576 2836 AD96.tmp 95
Processes
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C:\Users\Admin\AppData\Local\Temp\Lockbit-Ransomware-Builder-main\Decrypter.exe"C:\Users\Admin\AppData\Local\Temp\Lockbit-Ransomware-Builder-main\Decrypter.exe"1⤵
- Drops desktop.ini file(s)
- Sets desktop wallpaper using registry
- System Location Discovery: System Language Discovery
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4204 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵
- Drops file in System32 directory
PID:2696
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C:\ProgramData\AD96.tmp"C:\ProgramData\AD96.tmp"2⤵
- Checks computer location settings
- Deletes itself
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:2836 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\AD96.tmp >> NUL3⤵
- System Location Discovery: System Language Discovery
PID:2576
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc1⤵PID:1360
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C:\Windows\system32\printfilterpipelinesvc.exeC:\Windows\system32\printfilterpipelinesvc.exe -Embedding1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:4236 -
C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE/insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{CE662DCC-9BC6-44AA-BB4E-B470A4017414}.xps" 1337710628340500002⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of SetWindowsHookEx
PID:4880
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
129B
MD5f014f54dcaac84820be099ce792d4db2
SHA1ed6f8ddb4f9e97caec710e61b922f212ef50ee9a
SHA2566b29db8fa97c1dce54412a34204a2f0bb2be1df92b603e5709c1a42cc83954b2
SHA5125d2949e8c6305be6b576f781f3928d73360658681449f9f48d1989791444b2e0990e07b8f0a092d2a30aedbcdcd6753bff7b2479aaa8f392b4bc3751c3fedec2
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Filesize
348B
MD59810eed5ecd966874ebeb398ac6531ed
SHA117d2e2bc15df652734b79185cb323e652559fd6a
SHA25653183e5ed0cf42bed46b17c9dcc92ea49737bb57dce34f1e20675a913796566e
SHA512b26ca61461ed8b09f037e33d209cd0a22959b89e3e7895e057f544010fd5ae037e4fa76311763c121cd6e8b3050de22fa7d2163b4d9cf40585e14f5024e0cb79
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Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf
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Filesize
146KB
MD58cd60b304046b150e1b8213aab6f6ffe
SHA1174d887e3a5ebf72584ef83d539254c4525e76a0
SHA2564a002f538e220ab0546983416ddbd482b81db9a8134c5cb8c310317a728b8f2b
SHA512efe980796e77ed4ebb641f2aa8100777782252402ae26925885fe7ee8e7244b51f6c145c51bdcad244774059c4d0442d69aae6bedb53cc8354059bea3493451f
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Filesize
4KB
MD5a16df7afc2855efae6978499d80efc44
SHA1118ed290b2f482eddcd44f021406ab765c6ce4ff
SHA2564db3b274849d02a8d9f4ca0c62b4daa2af44a8a5bd69041630b4ab8d723d005a
SHA512bcbd969e93506f3ed65d03eff56e0c2592485bc8fa9c17da5083acbf7460853397cd42b99e5bafd3af7a50e9650ea39e1302f453d1333b36173d185c615a304b
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Filesize
4KB
MD504b3691eae4c377e2fd3e45e1f866bb0
SHA151098fe4b8e80f0448becb901f91eefc7e78f376
SHA25693aec52dba7cd311fc1dc874f05203c2197f65bfe60b9f2efbaae63164320634
SHA512679d9ec04f1ffaea16a42101906181a8d333a11fe5d928755fc238c2e68f9ca686c18fb5b8d690f1881da4f2e5c3ca5c75b820c6175450c161eb931477920882
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Filesize
129B
MD597d216fd5752f88dc67fd597df2e1eed
SHA1e00930fdd87d447be1d6bc62f48c22f8a9514a41
SHA256ed62536857c3a94ba8c9923a510e80c88ce45f210b150695f6497601ecc7cc05
SHA512733e480ad6cd37fa5b5205d3764dcc2059ae4a35e24a5516edaea6be029e6844d508332b9779b47b5ff3272a6ef2302e66d623a6b6f28a707d9c2a60251e7093