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
118s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-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/Builder.exe
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Size
146KB
-
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 (314) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Deletes itself 1 IoCs
Processes:
79A3.tmppid Process 2160 79A3.tmp -
Executes dropped EXE 1 IoCs
Processes:
79A3.tmppid Process 2160 79A3.tmp -
Loads dropped DLL 1 IoCs
Processes:
Builder.exepid Process 2888 Builder.exe -
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
Processes:
Builder.exedescription ioc Process File opened for modification C:\$Recycle.Bin\S-1-5-21-2039016743-699959520-214465309-1000\desktop.ini Builder.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-2039016743-699959520-214465309-1000\desktop.ini Builder.exe -
Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
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Sets desktop wallpaper using registry 2 TTPs 2 IoCs
Processes:
Builder.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\1pvSvxmZY.bmp" Builder.exe Set value (str) \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\1pvSvxmZY.bmp" Builder.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
Processes:
79A3.tmppid Process 2160 79A3.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.
Processes:
Builder.exe79A3.tmpcmd.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Builder.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 79A3.tmp Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Modifies Control Panel 2 IoCs
Processes:
Builder.exedescription ioc Process Key created \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Control Panel\Desktop Builder.exe Set value (str) \REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Control Panel\Desktop\WallpaperStyle = "10" Builder.exe -
Modifies registry class 5 IoCs
Processes:
Builder.exedescription ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.1pvSvxmZY Builder.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.1pvSvxmZY\ = "1pvSvxmZY" Builder.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\1pvSvxmZY\DefaultIcon Builder.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\1pvSvxmZY Builder.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\1pvSvxmZY\DefaultIcon\ = "C:\\ProgramData\\1pvSvxmZY.ico" Builder.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
Processes:
Builder.exepid Process 2888 Builder.exe 2888 Builder.exe 2888 Builder.exe 2888 Builder.exe 2888 Builder.exe 2888 Builder.exe 2888 Builder.exe 2888 Builder.exe 2888 Builder.exe 2888 Builder.exe 2888 Builder.exe 2888 Builder.exe 2888 Builder.exe 2888 Builder.exe -
Suspicious behavior: RenamesItself 26 IoCs
Processes:
79A3.tmppid Process 2160 79A3.tmp 2160 79A3.tmp 2160 79A3.tmp 2160 79A3.tmp 2160 79A3.tmp 2160 79A3.tmp 2160 79A3.tmp 2160 79A3.tmp 2160 79A3.tmp 2160 79A3.tmp 2160 79A3.tmp 2160 79A3.tmp 2160 79A3.tmp 2160 79A3.tmp 2160 79A3.tmp 2160 79A3.tmp 2160 79A3.tmp 2160 79A3.tmp 2160 79A3.tmp 2160 79A3.tmp 2160 79A3.tmp 2160 79A3.tmp 2160 79A3.tmp 2160 79A3.tmp 2160 79A3.tmp 2160 79A3.tmp -
Suspicious use of AdjustPrivilegeToken 64 IoCs
Processes:
Builder.exedescription pid Process Token: SeAssignPrimaryTokenPrivilege 2888 Builder.exe Token: SeBackupPrivilege 2888 Builder.exe Token: SeDebugPrivilege 2888 Builder.exe Token: 36 2888 Builder.exe Token: SeImpersonatePrivilege 2888 Builder.exe Token: SeIncBasePriorityPrivilege 2888 Builder.exe Token: SeIncreaseQuotaPrivilege 2888 Builder.exe Token: 33 2888 Builder.exe Token: SeManageVolumePrivilege 2888 Builder.exe Token: SeProfSingleProcessPrivilege 2888 Builder.exe Token: SeRestorePrivilege 2888 Builder.exe Token: SeSecurityPrivilege 2888 Builder.exe Token: SeSystemProfilePrivilege 2888 Builder.exe Token: SeTakeOwnershipPrivilege 2888 Builder.exe Token: SeShutdownPrivilege 2888 Builder.exe Token: SeDebugPrivilege 2888 Builder.exe Token: SeBackupPrivilege 2888 Builder.exe Token: SeBackupPrivilege 2888 Builder.exe Token: SeSecurityPrivilege 2888 Builder.exe Token: SeSecurityPrivilege 2888 Builder.exe Token: SeBackupPrivilege 2888 Builder.exe Token: SeBackupPrivilege 2888 Builder.exe Token: SeSecurityPrivilege 2888 Builder.exe Token: SeSecurityPrivilege 2888 Builder.exe Token: SeBackupPrivilege 2888 Builder.exe Token: SeBackupPrivilege 2888 Builder.exe Token: SeSecurityPrivilege 2888 Builder.exe Token: SeSecurityPrivilege 2888 Builder.exe Token: SeBackupPrivilege 2888 Builder.exe Token: SeBackupPrivilege 2888 Builder.exe Token: SeSecurityPrivilege 2888 Builder.exe Token: SeSecurityPrivilege 2888 Builder.exe Token: SeBackupPrivilege 2888 Builder.exe Token: SeBackupPrivilege 2888 Builder.exe Token: SeSecurityPrivilege 2888 Builder.exe Token: SeSecurityPrivilege 2888 Builder.exe Token: SeBackupPrivilege 2888 Builder.exe Token: SeBackupPrivilege 2888 Builder.exe Token: SeSecurityPrivilege 2888 Builder.exe Token: SeSecurityPrivilege 2888 Builder.exe Token: SeBackupPrivilege 2888 Builder.exe Token: SeBackupPrivilege 2888 Builder.exe Token: SeSecurityPrivilege 2888 Builder.exe Token: SeSecurityPrivilege 2888 Builder.exe Token: SeBackupPrivilege 2888 Builder.exe Token: SeBackupPrivilege 2888 Builder.exe Token: SeSecurityPrivilege 2888 Builder.exe Token: SeSecurityPrivilege 2888 Builder.exe Token: SeBackupPrivilege 2888 Builder.exe Token: SeBackupPrivilege 2888 Builder.exe Token: SeSecurityPrivilege 2888 Builder.exe Token: SeSecurityPrivilege 2888 Builder.exe Token: SeBackupPrivilege 2888 Builder.exe Token: SeBackupPrivilege 2888 Builder.exe Token: SeSecurityPrivilege 2888 Builder.exe Token: SeSecurityPrivilege 2888 Builder.exe Token: SeBackupPrivilege 2888 Builder.exe Token: SeBackupPrivilege 2888 Builder.exe Token: SeSecurityPrivilege 2888 Builder.exe Token: SeSecurityPrivilege 2888 Builder.exe Token: SeBackupPrivilege 2888 Builder.exe Token: SeBackupPrivilege 2888 Builder.exe Token: SeSecurityPrivilege 2888 Builder.exe Token: SeSecurityPrivilege 2888 Builder.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
Builder.exe79A3.tmpdescription pid Process procid_target PID 2888 wrote to memory of 2160 2888 Builder.exe 32 PID 2888 wrote to memory of 2160 2888 Builder.exe 32 PID 2888 wrote to memory of 2160 2888 Builder.exe 32 PID 2888 wrote to memory of 2160 2888 Builder.exe 32 PID 2888 wrote to memory of 2160 2888 Builder.exe 32 PID 2160 wrote to memory of 1828 2160 79A3.tmp 33 PID 2160 wrote to memory of 1828 2160 79A3.tmp 33 PID 2160 wrote to memory of 1828 2160 79A3.tmp 33 PID 2160 wrote to memory of 1828 2160 79A3.tmp 33
Processes
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C:\Users\Admin\AppData\Local\Temp\Lockbit-Ransomware-Builder-main\Builder.exe"C:\Users\Admin\AppData\Local\Temp\Lockbit-Ransomware-Builder-main\Builder.exe"1⤵
- Loads dropped DLL
- 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:2888 -
C:\ProgramData\79A3.tmp"C:\ProgramData\79A3.tmp"2⤵
- Deletes itself
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:2160 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\79A3.tmp >> NUL3⤵
- System Location Discovery: System Language Discovery
PID:1828
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x14c1⤵PID:1592
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
129B
MD5a3ea5448acea599276b6515159af1f81
SHA1a631ff41e778625a220c928da872f5ef40466e36
SHA256811edc67f2905332af51259bffb4f6815761c91658c46aa1884223595b1597d1
SHA512e08671c7b515794e59e90a62ebde659c7cc65aeca9bae85b30981c717734315680fef9c1523b062c1780bca155bb1b7542bbe2ab5108f236318db2213731715e
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Filesize
348B
MD59810eed5ecd966874ebeb398ac6531ed
SHA117d2e2bc15df652734b79185cb323e652559fd6a
SHA25653183e5ed0cf42bed46b17c9dcc92ea49737bb57dce34f1e20675a913796566e
SHA512b26ca61461ed8b09f037e33d209cd0a22959b89e3e7895e057f544010fd5ae037e4fa76311763c121cd6e8b3050de22fa7d2163b4d9cf40585e14f5024e0cb79
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Filesize
146KB
MD579f6a568b2b1d20953f93154bc856aea
SHA12d12c56b0d3107559fbf5c044d0cb663e1c32422
SHA256ae33cff1d95fb256c061d29448155f78608bfe46ae8faa9857f35405bf94facb
SHA51201c9e5850356d9d996d167f8f9345cde6320e37339ddb746bf6cbf09e5c89b5be12c5c38584a1876accf634f85d210bbaba683b28916399e42d2d2f0c9eb44cf
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Filesize
129B
MD5bff71953c3fb055699258b497cd7d7eb
SHA11282c94edce047ae5bf8297498cc150e91126e5f
SHA256b1f376c2398c04e56c1c7072abac355048b489d332771f98c5640dc0bd161b9e
SHA5127f52291728167ca4df679e8eeb28de41968c420546e07109522f04eb3054e2ade6dbbdeb3b4090831afd48e523935ff54f81d071d1553eeb98785332c8aa680f
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Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf