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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
74s -
max time network
35s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
26/11/2024, 14:21
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
win7-20241010-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/Builder.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 (376) 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
pid Process 2624 A9C7.tmp -
Executes dropped EXE 1 IoCs
pid Process 2624 A9C7.tmp -
Loads dropped DLL 1 IoCs
pid Process 1276 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
description ioc Process File opened for modification C:\$Recycle.Bin\S-1-5-21-3692679935-4019334568-335155002-1000\desktop.ini Builder.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3692679935-4019334568-335155002-1000\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
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\1pvSvxmZY.bmp" Builder.exe Set value (str) \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\1pvSvxmZY.bmp" Builder.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 2624 A9C7.tmp -
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 Builder.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language A9C7.tmp Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Modifies Control Panel 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Control Panel\Desktop Builder.exe Set value (str) \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Control Panel\Desktop\WallpaperStyle = "10" Builder.exe -
Modifies registry class 5 IoCs
description 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 16 IoCs
pid Process 1276 Builder.exe 1276 Builder.exe 1276 Builder.exe 1276 Builder.exe 1276 Builder.exe 1276 Builder.exe 1276 Builder.exe 1276 Builder.exe 1276 Builder.exe 1276 Builder.exe 1276 Builder.exe 1276 Builder.exe 1276 Builder.exe 1276 Builder.exe 1276 Builder.exe 1276 Builder.exe -
Suspicious behavior: RenamesItself 26 IoCs
pid Process 2624 A9C7.tmp 2624 A9C7.tmp 2624 A9C7.tmp 2624 A9C7.tmp 2624 A9C7.tmp 2624 A9C7.tmp 2624 A9C7.tmp 2624 A9C7.tmp 2624 A9C7.tmp 2624 A9C7.tmp 2624 A9C7.tmp 2624 A9C7.tmp 2624 A9C7.tmp 2624 A9C7.tmp 2624 A9C7.tmp 2624 A9C7.tmp 2624 A9C7.tmp 2624 A9C7.tmp 2624 A9C7.tmp 2624 A9C7.tmp 2624 A9C7.tmp 2624 A9C7.tmp 2624 A9C7.tmp 2624 A9C7.tmp 2624 A9C7.tmp 2624 A9C7.tmp -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeAssignPrimaryTokenPrivilege 1276 Builder.exe Token: SeBackupPrivilege 1276 Builder.exe Token: SeDebugPrivilege 1276 Builder.exe Token: 36 1276 Builder.exe Token: SeImpersonatePrivilege 1276 Builder.exe Token: SeIncBasePriorityPrivilege 1276 Builder.exe Token: SeIncreaseQuotaPrivilege 1276 Builder.exe Token: 33 1276 Builder.exe Token: SeManageVolumePrivilege 1276 Builder.exe Token: SeProfSingleProcessPrivilege 1276 Builder.exe Token: SeRestorePrivilege 1276 Builder.exe Token: SeSecurityPrivilege 1276 Builder.exe Token: SeSystemProfilePrivilege 1276 Builder.exe Token: SeTakeOwnershipPrivilege 1276 Builder.exe Token: SeShutdownPrivilege 1276 Builder.exe Token: SeDebugPrivilege 1276 Builder.exe Token: SeBackupPrivilege 1276 Builder.exe Token: SeBackupPrivilege 1276 Builder.exe Token: SeSecurityPrivilege 1276 Builder.exe Token: SeSecurityPrivilege 1276 Builder.exe Token: SeBackupPrivilege 1276 Builder.exe Token: SeBackupPrivilege 1276 Builder.exe Token: SeSecurityPrivilege 1276 Builder.exe Token: SeSecurityPrivilege 1276 Builder.exe Token: SeBackupPrivilege 1276 Builder.exe Token: SeBackupPrivilege 1276 Builder.exe Token: SeSecurityPrivilege 1276 Builder.exe Token: SeSecurityPrivilege 1276 Builder.exe Token: SeBackupPrivilege 1276 Builder.exe Token: SeBackupPrivilege 1276 Builder.exe Token: SeSecurityPrivilege 1276 Builder.exe Token: SeSecurityPrivilege 1276 Builder.exe Token: SeBackupPrivilege 1276 Builder.exe Token: SeBackupPrivilege 1276 Builder.exe Token: SeSecurityPrivilege 1276 Builder.exe Token: SeSecurityPrivilege 1276 Builder.exe Token: SeBackupPrivilege 1276 Builder.exe Token: SeBackupPrivilege 1276 Builder.exe Token: SeSecurityPrivilege 1276 Builder.exe Token: SeSecurityPrivilege 1276 Builder.exe Token: SeBackupPrivilege 1276 Builder.exe Token: SeBackupPrivilege 1276 Builder.exe Token: SeSecurityPrivilege 1276 Builder.exe Token: SeSecurityPrivilege 1276 Builder.exe Token: SeBackupPrivilege 1276 Builder.exe Token: SeBackupPrivilege 1276 Builder.exe Token: SeSecurityPrivilege 1276 Builder.exe Token: SeSecurityPrivilege 1276 Builder.exe Token: SeBackupPrivilege 1276 Builder.exe Token: SeBackupPrivilege 1276 Builder.exe Token: SeSecurityPrivilege 1276 Builder.exe Token: SeSecurityPrivilege 1276 Builder.exe Token: SeBackupPrivilege 1276 Builder.exe Token: SeBackupPrivilege 1276 Builder.exe Token: SeSecurityPrivilege 1276 Builder.exe Token: SeSecurityPrivilege 1276 Builder.exe Token: SeBackupPrivilege 1276 Builder.exe Token: SeBackupPrivilege 1276 Builder.exe Token: SeSecurityPrivilege 1276 Builder.exe Token: SeSecurityPrivilege 1276 Builder.exe Token: SeBackupPrivilege 1276 Builder.exe Token: SeBackupPrivilege 1276 Builder.exe Token: SeSecurityPrivilege 1276 Builder.exe Token: SeSecurityPrivilege 1276 Builder.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 1276 wrote to memory of 2624 1276 Builder.exe 31 PID 1276 wrote to memory of 2624 1276 Builder.exe 31 PID 1276 wrote to memory of 2624 1276 Builder.exe 31 PID 1276 wrote to memory of 2624 1276 Builder.exe 31 PID 1276 wrote to memory of 2624 1276 Builder.exe 31 PID 2624 wrote to memory of 1592 2624 A9C7.tmp 32 PID 2624 wrote to memory of 1592 2624 A9C7.tmp 32 PID 2624 wrote to memory of 1592 2624 A9C7.tmp 32 PID 2624 wrote to memory of 1592 2624 A9C7.tmp 32
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:1276 -
C:\ProgramData\A9C7.tmp"C:\ProgramData\A9C7.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:2624 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\A9C7.tmp >> NUL3⤵
- System Location Discovery: System Language Discovery
PID:1592
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x1501⤵PID:2840
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
129B
MD5cac569d48f4c770ac97fb65fc0f98f59
SHA19f4f7afd61526a9c6ffb17775c2a11ba1b16289f
SHA256f5ab6bb0ae3ba2c773796e734ba6001661aae077b59e1059e9d25913e829a454
SHA512cb8d962f7dcf5e1d505f005a2d38acc90be8ab3abd6d7ecc5e571a2e1ff583987662c077942428fb91433aed7aa42adfbb69656d3182cb429cc8f33741a843e0
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Filesize
348B
MD59810eed5ecd966874ebeb398ac6531ed
SHA117d2e2bc15df652734b79185cb323e652559fd6a
SHA25653183e5ed0cf42bed46b17c9dcc92ea49737bb57dce34f1e20675a913796566e
SHA512b26ca61461ed8b09f037e33d209cd0a22959b89e3e7895e057f544010fd5ae037e4fa76311763c121cd6e8b3050de22fa7d2163b4d9cf40585e14f5024e0cb79
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Filesize
146KB
MD51abd78af8a33b5e6ad6582aeb0613be5
SHA1f180b605cef8910bd3e0d2af680eb95533b84712
SHA256ef58a1bbdcde2b78798d71cab781a9f8cca59becc6c029d9fa1260c40f877fee
SHA51272635fe7c80c8cad833eb60662b51a5dabab6ec9e7c44c9055446f9e1ace3f4ccf4bbe42ff17c65113bff9b274ce761e9547ce4ffea77360e2fec6be6d40b59e
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Filesize
129B
MD565fa57dea1fe539698a8aef16303225b
SHA18d0b85588c750ca255f9eb2c767de22261e17a12
SHA25674a2018469545a8812a693a0671b2996921c356c057505cb152ee326f7e887b7
SHA512172812c5a8af1a8bdb9f73b1dfb8aea9aa79308cdc16a1697ab459d43bd55b36aecb3b49b033d72cd1f49fe12e2f2b757369212072648b3b9ac0d6cedb86d938
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Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf