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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
149s -
max time network
150s -
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, 14:48
Behavioral task
behavioral1
Sample
Lockbit-Ransomware-Builder-main/Builder.exe
Resource
win7-20241010-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
win7-20241023-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
win7-20241010-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 (587) 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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation E58E.tmp -
Deletes itself 1 IoCs
pid Process 4892 E58E.tmp -
Executes dropped EXE 1 IoCs
pid Process 4892 E58E.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-1-5-21-2437139445-1151884604-3026847218-1000\desktop.ini Decrypter.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-2437139445-1151884604-3026847218-1000\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\PPeyel0qsxfs0t3phjz6loh_ub.TMP printfilterpipelinesvc.exe File created C:\Windows\system32\spool\PRINTERS\PPm_ubd9oub9rzvjpq0u6e7cro.TMP printfilterpipelinesvc.exe File created C:\Windows\system32\spool\PRINTERS\00002.SPL splwow64.exe File created C:\Windows\system32\spool\PRINTERS\PPbu0d0yql3zseekqed7h593vrc.TMP printfilterpipelinesvc.exe -
Sets desktop wallpaper using registry 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\1pvSvxmZY.bmp" Decrypter.exe Set value (str) \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\1pvSvxmZY.bmp" Decrypter.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 4892 E58E.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 E58E.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 opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 ONENOTE.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz ONENOTE.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\Desktop Decrypter.exe Set value (str) \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\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\DefaultIcon\ = "C:\\ProgramData\\1pvSvxmZY.ico" Decrypter.exe 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 -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe 1648 Decrypter.exe -
Suspicious behavior: RenamesItself 26 IoCs
pid Process 4892 E58E.tmp 4892 E58E.tmp 4892 E58E.tmp 4892 E58E.tmp 4892 E58E.tmp 4892 E58E.tmp 4892 E58E.tmp 4892 E58E.tmp 4892 E58E.tmp 4892 E58E.tmp 4892 E58E.tmp 4892 E58E.tmp 4892 E58E.tmp 4892 E58E.tmp 4892 E58E.tmp 4892 E58E.tmp 4892 E58E.tmp 4892 E58E.tmp 4892 E58E.tmp 4892 E58E.tmp 4892 E58E.tmp 4892 E58E.tmp 4892 E58E.tmp 4892 E58E.tmp 4892 E58E.tmp 4892 E58E.tmp -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeAssignPrimaryTokenPrivilege 1648 Decrypter.exe Token: SeBackupPrivilege 1648 Decrypter.exe Token: SeDebugPrivilege 1648 Decrypter.exe Token: 36 1648 Decrypter.exe Token: SeImpersonatePrivilege 1648 Decrypter.exe Token: SeIncBasePriorityPrivilege 1648 Decrypter.exe Token: SeIncreaseQuotaPrivilege 1648 Decrypter.exe Token: 33 1648 Decrypter.exe Token: SeManageVolumePrivilege 1648 Decrypter.exe Token: SeProfSingleProcessPrivilege 1648 Decrypter.exe Token: SeRestorePrivilege 1648 Decrypter.exe Token: SeSecurityPrivilege 1648 Decrypter.exe Token: SeSystemProfilePrivilege 1648 Decrypter.exe Token: SeTakeOwnershipPrivilege 1648 Decrypter.exe Token: SeShutdownPrivilege 1648 Decrypter.exe Token: SeDebugPrivilege 1648 Decrypter.exe Token: SeBackupPrivilege 1648 Decrypter.exe Token: SeBackupPrivilege 1648 Decrypter.exe Token: SeSecurityPrivilege 1648 Decrypter.exe Token: SeSecurityPrivilege 1648 Decrypter.exe Token: SeBackupPrivilege 1648 Decrypter.exe Token: SeBackupPrivilege 1648 Decrypter.exe Token: SeSecurityPrivilege 1648 Decrypter.exe Token: SeSecurityPrivilege 1648 Decrypter.exe Token: SeBackupPrivilege 1648 Decrypter.exe Token: SeBackupPrivilege 1648 Decrypter.exe Token: SeSecurityPrivilege 1648 Decrypter.exe Token: SeSecurityPrivilege 1648 Decrypter.exe Token: SeBackupPrivilege 1648 Decrypter.exe Token: SeBackupPrivilege 1648 Decrypter.exe Token: SeSecurityPrivilege 1648 Decrypter.exe Token: SeSecurityPrivilege 1648 Decrypter.exe Token: SeBackupPrivilege 1648 Decrypter.exe Token: SeBackupPrivilege 1648 Decrypter.exe Token: SeSecurityPrivilege 1648 Decrypter.exe Token: SeSecurityPrivilege 1648 Decrypter.exe Token: SeBackupPrivilege 1648 Decrypter.exe Token: SeBackupPrivilege 1648 Decrypter.exe Token: SeSecurityPrivilege 1648 Decrypter.exe Token: SeSecurityPrivilege 1648 Decrypter.exe Token: SeBackupPrivilege 1648 Decrypter.exe Token: SeBackupPrivilege 1648 Decrypter.exe Token: SeSecurityPrivilege 1648 Decrypter.exe Token: SeSecurityPrivilege 1648 Decrypter.exe Token: SeBackupPrivilege 1648 Decrypter.exe Token: SeBackupPrivilege 1648 Decrypter.exe Token: SeSecurityPrivilege 1648 Decrypter.exe Token: SeSecurityPrivilege 1648 Decrypter.exe Token: SeBackupPrivilege 1648 Decrypter.exe Token: SeBackupPrivilege 1648 Decrypter.exe Token: SeSecurityPrivilege 1648 Decrypter.exe Token: SeSecurityPrivilege 1648 Decrypter.exe Token: SeBackupPrivilege 1648 Decrypter.exe Token: SeBackupPrivilege 1648 Decrypter.exe Token: SeSecurityPrivilege 1648 Decrypter.exe Token: SeSecurityPrivilege 1648 Decrypter.exe Token: SeBackupPrivilege 1648 Decrypter.exe Token: SeBackupPrivilege 1648 Decrypter.exe Token: SeSecurityPrivilege 1648 Decrypter.exe Token: SeSecurityPrivilege 1648 Decrypter.exe Token: SeBackupPrivilege 1648 Decrypter.exe Token: SeBackupPrivilege 1648 Decrypter.exe Token: SeSecurityPrivilege 1648 Decrypter.exe Token: SeSecurityPrivilege 1648 Decrypter.exe -
Suspicious use of SetWindowsHookEx 13 IoCs
pid Process 4328 ONENOTE.EXE 4328 ONENOTE.EXE 4328 ONENOTE.EXE 4328 ONENOTE.EXE 4328 ONENOTE.EXE 4328 ONENOTE.EXE 4328 ONENOTE.EXE 4328 ONENOTE.EXE 4328 ONENOTE.EXE 4328 ONENOTE.EXE 4328 ONENOTE.EXE 4328 ONENOTE.EXE 4328 ONENOTE.EXE -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 1648 wrote to memory of 5920 1648 Decrypter.exe 90 PID 1648 wrote to memory of 5920 1648 Decrypter.exe 90 PID 4508 wrote to memory of 4328 4508 printfilterpipelinesvc.exe 98 PID 4508 wrote to memory of 4328 4508 printfilterpipelinesvc.exe 98 PID 1648 wrote to memory of 4892 1648 Decrypter.exe 99 PID 1648 wrote to memory of 4892 1648 Decrypter.exe 99 PID 1648 wrote to memory of 4892 1648 Decrypter.exe 99 PID 1648 wrote to memory of 4892 1648 Decrypter.exe 99 PID 4892 wrote to memory of 4160 4892 E58E.tmp 101 PID 4892 wrote to memory of 4160 4892 E58E.tmp 101 PID 4892 wrote to memory of 4160 4892 E58E.tmp 101
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:1648 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵
- Drops file in System32 directory
PID:5920
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C:\ProgramData\E58E.tmp"C:\ProgramData\E58E.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:4892 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\E58E.tmp >> NUL3⤵
- System Location Discovery: System Language Discovery
PID:4160
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc1⤵PID:6032
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C:\Windows\system32\printfilterpipelinesvc.exeC:\Windows\system32\printfilterpipelinesvc.exe -Embedding1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:4508 -
C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE/insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{713C6581-7AAB-48E7-AE7B-432134F22B02}.xps" 1337710610647300002⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of SetWindowsHookEx
PID:4328
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
129B
MD53448157ee6e72a55f5b843242c22e002
SHA1fb634197d516f2b9db5db3b4a32217f0f9594ab3
SHA2562d9016a81912e43065b5cc359b6ab7ed776547b5f39a0b3b1458c9e1505e81ad
SHA512aba23a5f50c98eb548e468d823d7ac4c71d7d4d2ab672ff3e349bb0ae170515191d8ebfb4bd01315feead8231e2a07315ec93b44a99373b25eaebb4f776c480c
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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
MD59f53af2c605081a1cf741db07d6d5366
SHA1cbce5f022d7f7f985abed46f40037e292bbc191d
SHA2565476bd511dccff73900414f67d21d2847f9bff280a68318c95ecc041372637a4
SHA512c8a895ce6901ba25d60cec8e6aa990e4508b2c74f95f8baf5626ad9e9d1d1138085151d4df869c0a544d77bd86d46967a126ce7b96c3a57b5a7bd1954adf6432
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Filesize
4KB
MD59c60278ab3330db941e7b832d66528ee
SHA1e6abfbe8f99736e7ccb2a107a8ea6af60e7a68de
SHA2563f43de2ac37b3aad74a79d676a44caba426ef876da976709e05c5546f4a97b9f
SHA5122c8ac7a7522819566e36a57f96f9a94730c2af7457e2935f5e5803c638b2eee623abe3546836be1cf7e2472379e4e31c243b77e2192209a6292ff4b5745d76cb
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Filesize
4KB
MD55ddaa661ed6b772fc5b0b88caaaaa949
SHA10ec217bde62c8d14a02fa1feb5bd970939771b59
SHA2569f69ef7a3efe14f52141896e4d9c2b9694369b765c382eca142cc3e7d4a55d91
SHA5124ca95a56f9aae3bc51f70d6ccfc8889fe2bcafd63d8a9212af1302ab4f08044ec4f9b8082c4490509902fde6f58bf37f765bb989d9ed766e71c77971ce8fb2ff
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Filesize
129B
MD560c6f81a9ac4910ab397429dd4069b57
SHA1e5436638ae575b5fa53ad26bba94d046f839ca6c
SHA256d27f829d46c1b98b4d3c6292da4047fa31c2c5c8dfe857b4a80da159d9284125
SHA5124c815a4040858e8a2f6799c853276579ea6f33b7830504151265e1269e080b3cb3e4c84eecd5d0ee9ad9aafa6c972b3c91436f2ffa1c93ccef02679f56151aef