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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
120s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
26/11/2024, 14:51
Behavioral task
behavioral1
Sample
Lockbit-Ransomware-Builder-main/Builder.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
Lockbit-Ransomware-Builder-main/Builder.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral3
Sample
Lockbit-Ransomware-Builder-main/Decrypter.exe
Resource
win7-20240708-en
Behavioral task
behavioral4
Sample
Lockbit-Ransomware-Builder-main/Decrypter.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral5
Sample
Lockbit-Ransomware-Builder-main/KeyGen.exe
Resource
win7-20240903-en
Behavioral task
behavioral6
Sample
Lockbit-Ransomware-Builder-main/KeyGen.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral7
Sample
Lockbit-Ransomware-Builder-main/README.vbs
Resource
win7-20240903-en
Behavioral task
behavioral8
Sample
Lockbit-Ransomware-Builder-main/README.vbs
Resource
win10v2004-20241007-en
General
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Target
Lockbit-Ransomware-Builder-main/KeyGen.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 (360) 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 1612 BECD.tmp -
Executes dropped EXE 1 IoCs
pid Process 1612 BECD.tmp -
Loads dropped DLL 1 IoCs
pid Process 2532 KeyGen.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 F:\$RECYCLE.BIN\S-1-5-21-3533259084-2542256011-65585152-1000\desktop.ini KeyGen.exe File opened for modification C:\$Recycle.Bin\S-1-5-21-3533259084-2542256011-65585152-1000\desktop.ini KeyGen.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-1-5-21-3533259084-2542256011-65585152-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\1pvSvxmZY.bmp" KeyGen.exe Set value (str) \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\1pvSvxmZY.bmp" KeyGen.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 1612 BECD.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 KeyGen.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language BECD.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-1-5-21-3533259084-2542256011-65585152-1000\Control Panel\Desktop KeyGen.exe Set value (str) \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Control Panel\Desktop\WallpaperStyle = "10" KeyGen.exe -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.1pvSvxmZY KeyGen.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.1pvSvxmZY\ = "1pvSvxmZY" KeyGen.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\1pvSvxmZY\DefaultIcon KeyGen.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\1pvSvxmZY KeyGen.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\1pvSvxmZY\DefaultIcon\ = "C:\\ProgramData\\1pvSvxmZY.ico" KeyGen.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 2532 KeyGen.exe 2532 KeyGen.exe 2532 KeyGen.exe 2532 KeyGen.exe 2532 KeyGen.exe 2532 KeyGen.exe 2532 KeyGen.exe 2532 KeyGen.exe 2532 KeyGen.exe 2532 KeyGen.exe 2532 KeyGen.exe 2532 KeyGen.exe 2532 KeyGen.exe 2532 KeyGen.exe -
Suspicious behavior: RenamesItself 26 IoCs
pid Process 1612 BECD.tmp 1612 BECD.tmp 1612 BECD.tmp 1612 BECD.tmp 1612 BECD.tmp 1612 BECD.tmp 1612 BECD.tmp 1612 BECD.tmp 1612 BECD.tmp 1612 BECD.tmp 1612 BECD.tmp 1612 BECD.tmp 1612 BECD.tmp 1612 BECD.tmp 1612 BECD.tmp 1612 BECD.tmp 1612 BECD.tmp 1612 BECD.tmp 1612 BECD.tmp 1612 BECD.tmp 1612 BECD.tmp 1612 BECD.tmp 1612 BECD.tmp 1612 BECD.tmp 1612 BECD.tmp 1612 BECD.tmp -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeAssignPrimaryTokenPrivilege 2532 KeyGen.exe Token: SeBackupPrivilege 2532 KeyGen.exe Token: SeDebugPrivilege 2532 KeyGen.exe Token: 36 2532 KeyGen.exe Token: SeImpersonatePrivilege 2532 KeyGen.exe Token: SeIncBasePriorityPrivilege 2532 KeyGen.exe Token: SeIncreaseQuotaPrivilege 2532 KeyGen.exe Token: 33 2532 KeyGen.exe Token: SeManageVolumePrivilege 2532 KeyGen.exe Token: SeProfSingleProcessPrivilege 2532 KeyGen.exe Token: SeRestorePrivilege 2532 KeyGen.exe Token: SeSecurityPrivilege 2532 KeyGen.exe Token: SeSystemProfilePrivilege 2532 KeyGen.exe Token: SeTakeOwnershipPrivilege 2532 KeyGen.exe Token: SeShutdownPrivilege 2532 KeyGen.exe Token: SeDebugPrivilege 2532 KeyGen.exe Token: SeBackupPrivilege 2532 KeyGen.exe Token: SeBackupPrivilege 2532 KeyGen.exe Token: SeSecurityPrivilege 2532 KeyGen.exe Token: SeSecurityPrivilege 2532 KeyGen.exe Token: SeBackupPrivilege 2532 KeyGen.exe Token: SeBackupPrivilege 2532 KeyGen.exe Token: SeSecurityPrivilege 2532 KeyGen.exe Token: SeSecurityPrivilege 2532 KeyGen.exe Token: SeBackupPrivilege 2532 KeyGen.exe Token: SeBackupPrivilege 2532 KeyGen.exe Token: SeSecurityPrivilege 2532 KeyGen.exe Token: SeSecurityPrivilege 2532 KeyGen.exe Token: SeBackupPrivilege 2532 KeyGen.exe Token: SeBackupPrivilege 2532 KeyGen.exe Token: SeSecurityPrivilege 2532 KeyGen.exe Token: SeSecurityPrivilege 2532 KeyGen.exe Token: SeBackupPrivilege 2532 KeyGen.exe Token: SeBackupPrivilege 2532 KeyGen.exe Token: SeSecurityPrivilege 2532 KeyGen.exe Token: SeSecurityPrivilege 2532 KeyGen.exe Token: SeBackupPrivilege 2532 KeyGen.exe Token: SeBackupPrivilege 2532 KeyGen.exe Token: SeSecurityPrivilege 2532 KeyGen.exe Token: SeSecurityPrivilege 2532 KeyGen.exe Token: SeBackupPrivilege 2532 KeyGen.exe Token: SeBackupPrivilege 2532 KeyGen.exe Token: SeSecurityPrivilege 2532 KeyGen.exe Token: SeSecurityPrivilege 2532 KeyGen.exe Token: SeBackupPrivilege 2532 KeyGen.exe Token: SeBackupPrivilege 2532 KeyGen.exe Token: SeSecurityPrivilege 2532 KeyGen.exe Token: SeSecurityPrivilege 2532 KeyGen.exe Token: SeBackupPrivilege 2532 KeyGen.exe Token: SeBackupPrivilege 2532 KeyGen.exe Token: SeSecurityPrivilege 2532 KeyGen.exe Token: SeSecurityPrivilege 2532 KeyGen.exe Token: SeBackupPrivilege 2532 KeyGen.exe Token: SeBackupPrivilege 2532 KeyGen.exe Token: SeSecurityPrivilege 2532 KeyGen.exe Token: SeSecurityPrivilege 2532 KeyGen.exe Token: SeBackupPrivilege 2532 KeyGen.exe Token: SeBackupPrivilege 2532 KeyGen.exe Token: SeSecurityPrivilege 2532 KeyGen.exe Token: SeSecurityPrivilege 2532 KeyGen.exe Token: SeBackupPrivilege 2532 KeyGen.exe Token: SeBackupPrivilege 2532 KeyGen.exe Token: SeSecurityPrivilege 2532 KeyGen.exe Token: SeSecurityPrivilege 2532 KeyGen.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2532 wrote to memory of 1612 2532 KeyGen.exe 32 PID 2532 wrote to memory of 1612 2532 KeyGen.exe 32 PID 2532 wrote to memory of 1612 2532 KeyGen.exe 32 PID 2532 wrote to memory of 1612 2532 KeyGen.exe 32 PID 2532 wrote to memory of 1612 2532 KeyGen.exe 32 PID 1612 wrote to memory of 2044 1612 BECD.tmp 33 PID 1612 wrote to memory of 2044 1612 BECD.tmp 33 PID 1612 wrote to memory of 2044 1612 BECD.tmp 33 PID 1612 wrote to memory of 2044 1612 BECD.tmp 33
Processes
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C:\Users\Admin\AppData\Local\Temp\Lockbit-Ransomware-Builder-main\KeyGen.exe"C:\Users\Admin\AppData\Local\Temp\Lockbit-Ransomware-Builder-main\KeyGen.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:2532 -
C:\ProgramData\BECD.tmp"C:\ProgramData\BECD.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:1612 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\BECD.tmp >> NUL3⤵
- System Location Discovery: System Language Discovery
PID:2044
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x14c1⤵PID:2672
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
129B
MD5ba2a639430447fe3cea5ab88768d79e0
SHA1b6b690d6c901ff55e9fe5b0e12006b9ebe0a5223
SHA2563c4870eaa1739765632a24685638c79c9d971d542e3387eb0a79cb0fcb06228c
SHA5129a42223aca8df56e8a9d21901c58ef3c179f2c9fb79322c383ad27e1f09413cee637d7e6f25ee74ccd4db7e0b3c2ae4a4d5c3ee49e03bb8e0c215e1117b951f5
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Filesize
348B
MD59810eed5ecd966874ebeb398ac6531ed
SHA117d2e2bc15df652734b79185cb323e652559fd6a
SHA25653183e5ed0cf42bed46b17c9dcc92ea49737bb57dce34f1e20675a913796566e
SHA512b26ca61461ed8b09f037e33d209cd0a22959b89e3e7895e057f544010fd5ae037e4fa76311763c121cd6e8b3050de22fa7d2163b4d9cf40585e14f5024e0cb79
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Filesize
146KB
MD501c7b292fbcf44f2f428c6c0ea2126d9
SHA1d07760d8a432a0cda85f2c5c39eb7faddfb5ae39
SHA2565f60c7697c13825e446309dbf0ecd3023e0b08e88582ece0107ffb01faac2647
SHA512cca3b06a03a6371bfaab177d71b955895c1832f8cd2c520067f9d04712a4abed470b503b5801a7aaadaecc71935407cdbd17036fb3d4c72e94c68d81c2ce5514
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Filesize
129B
MD5c0ff57e2d43971d03469c1520d2b4436
SHA11d16fd7dafb2d2a82004ee6f7dcd705bd25e61bd
SHA256442fe0a489deb0ae2350823a3afaa8f66af2476ae62e3d1fbd87e6fd69ae7215
SHA512dd9711aa0c4553bbd9ff67422e3c28c8853ab9a0c12e79160163600c0ba8a6a0cf2db12bf424198460c9171d7ecdc46c412e74141c7e78ddef1b5f5ed8776c00
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Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf