Overview
overview
10Static
static
10LockBit-Bl...ld.bat
windows7-x64
3LockBit-Bl...ld.bat
windows10-2004-x64
3LockBit-Bl...B3.exe
windows7-x64
10LockBit-Bl...B3.exe
windows10-2004-x64
10LockBit-Bl...or.exe
windows7-x64
7LockBit-Bl...or.exe
windows10-2004-x64
7LockBit-Bl...in.dll
windows7-x64
10LockBit-Bl...in.dll
windows10-2004-x64
7LockBit-Bl...32.dll
windows7-x64
3LockBit-Bl...32.dll
windows10-2004-x64
3LockBit-Bl...ss.dll
windows7-x64
10LockBit-Bl...ss.dll
windows10-2004-x64
10LockBit-Bl...ss.exe
windows7-x64
10LockBit-Bl...ss.exe
windows10-2004-x64
10LockBit-Bl...er.exe
windows7-x64
1LockBit-Bl...er.exe
windows10-2004-x64
3LockBit-Bl...en.exe
windows7-x64
1LockBit-Bl...en.exe
windows10-2004-x64
3LockBit-Bl...ld.bat
windows7-x64
3LockBit-Bl...ld.bat
windows10-2004-x64
3LockBit-Bl...B3.exe
windows7-x64
10LockBit-Bl...B3.exe
windows10-2004-x64
10LockBit-Bl...or.exe
windows7-x64
7LockBit-Bl...or.exe
windows10-2004-x64
7LockBit-Bl...in.dll
windows7-x64
10LockBit-Bl...in.dll
windows10-2004-x64
7LockBit-Bl...32.dll
windows7-x64
3LockBit-Bl...32.dll
windows10-2004-x64
3LockBit-Bl...ss.dll
windows7-x64
10LockBit-Bl...ss.dll
windows10-2004-x64
10LockBit-Bl...ss.exe
windows7-x64
10LockBit-Bl...ss.exe
windows10-2004-x64
10Analysis
-
max time kernel
121s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
25/03/2025, 13:38
Behavioral task
behavioral1
Sample
LockBit-Black-Builder-main/LockBit30/Build.bat
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
LockBit-Black-Builder-main/LockBit30/Build.bat
Resource
win10v2004-20250314-en
Behavioral task
behavioral3
Sample
LockBit-Black-Builder-main/LockBit30/Build/LB3.exe
Resource
win7-20240903-en
Behavioral task
behavioral4
Sample
LockBit-Black-Builder-main/LockBit30/Build/LB3.exe
Resource
win10v2004-20250314-en
Behavioral task
behavioral5
Sample
LockBit-Black-Builder-main/LockBit30/Build/LB3Decryptor.exe
Resource
win7-20240903-en
Behavioral task
behavioral6
Sample
LockBit-Black-Builder-main/LockBit30/Build/LB3Decryptor.exe
Resource
win10v2004-20250314-en
Behavioral task
behavioral7
Sample
LockBit-Black-Builder-main/LockBit30/Build/LB3_ReflectiveDll_DllMain.dll
Resource
win7-20241023-en
Behavioral task
behavioral8
Sample
LockBit-Black-Builder-main/LockBit30/Build/LB3_ReflectiveDll_DllMain.dll
Resource
win10v2004-20250314-en
Behavioral task
behavioral9
Sample
LockBit-Black-Builder-main/LockBit30/Build/LB3_Rundll32.dll
Resource
win7-20240729-en
Behavioral task
behavioral10
Sample
LockBit-Black-Builder-main/LockBit30/Build/LB3_Rundll32.dll
Resource
win10v2004-20250314-en
Behavioral task
behavioral11
Sample
LockBit-Black-Builder-main/LockBit30/Build/LB3_Rundll32_pass.dll
Resource
win7-20241010-en
Behavioral task
behavioral12
Sample
LockBit-Black-Builder-main/LockBit30/Build/LB3_Rundll32_pass.dll
Resource
win10v2004-20250314-en
Behavioral task
behavioral13
Sample
LockBit-Black-Builder-main/LockBit30/Build/LB3_pass.exe
Resource
win7-20240903-en
Behavioral task
behavioral14
Sample
LockBit-Black-Builder-main/LockBit30/Build/LB3_pass.exe
Resource
win10v2004-20250314-en
Behavioral task
behavioral15
Sample
LockBit-Black-Builder-main/LockBit30/builder.exe
Resource
win7-20250207-en
Behavioral task
behavioral16
Sample
LockBit-Black-Builder-main/LockBit30/builder.exe
Resource
win10v2004-20250313-en
Behavioral task
behavioral17
Sample
LockBit-Black-Builder-main/LockBit30/keygen.exe
Resource
win7-20240903-en
Behavioral task
behavioral18
Sample
LockBit-Black-Builder-main/LockBit30/keygen.exe
Resource
win10v2004-20250313-en
Behavioral task
behavioral19
Sample
LockBit-Black-Builder-main/LockBit3Builder/Build.bat
Resource
win7-20240903-en
Behavioral task
behavioral20
Sample
LockBit-Black-Builder-main/LockBit3Builder/Build.bat
Resource
win10v2004-20250314-en
Behavioral task
behavioral21
Sample
LockBit-Black-Builder-main/LockBit3Builder/Build/LB3.exe
Resource
win7-20241023-en
Behavioral task
behavioral22
Sample
LockBit-Black-Builder-main/LockBit3Builder/Build/LB3.exe
Resource
win10v2004-20250314-en
Behavioral task
behavioral23
Sample
LockBit-Black-Builder-main/LockBit3Builder/Build/LB3Decryptor.exe
Resource
win7-20240903-en
Behavioral task
behavioral24
Sample
LockBit-Black-Builder-main/LockBit3Builder/Build/LB3Decryptor.exe
Resource
win10v2004-20250314-en
Behavioral task
behavioral25
Sample
LockBit-Black-Builder-main/LockBit3Builder/Build/LB3_ReflectiveDll_DllMain.dll
Resource
win7-20250207-en
Behavioral task
behavioral26
Sample
LockBit-Black-Builder-main/LockBit3Builder/Build/LB3_ReflectiveDll_DllMain.dll
Resource
win10v2004-20250314-en
Behavioral task
behavioral27
Sample
LockBit-Black-Builder-main/LockBit3Builder/Build/LB3_Rundll32.dll
Resource
win7-20241010-en
Behavioral task
behavioral28
Sample
LockBit-Black-Builder-main/LockBit3Builder/Build/LB3_Rundll32.dll
Resource
win10v2004-20250314-en
Behavioral task
behavioral29
Sample
LockBit-Black-Builder-main/LockBit3Builder/Build/LB3_Rundll32_pass.dll
Resource
win7-20250207-en
Behavioral task
behavioral30
Sample
LockBit-Black-Builder-main/LockBit3Builder/Build/LB3_Rundll32_pass.dll
Resource
win10v2004-20250313-en
Behavioral task
behavioral31
Sample
LockBit-Black-Builder-main/LockBit3Builder/Build/LB3_pass.exe
Resource
win7-20240903-en
Behavioral task
behavioral32
Sample
LockBit-Black-Builder-main/LockBit3Builder/Build/LB3_pass.exe
Resource
win10v2004-20250314-en
General
-
Target
LockBit-Black-Builder-main/LockBit30/Build/LB3.exe
-
Size
153KB
-
MD5
c73eac0c837c3c5caca3a885f46c17d9
-
SHA1
a0ca9511b40c9c2451986ce179016ec4014e9adb
-
SHA256
e609bf8406b61613f3e605d277cf445059974a4c71c3edd09fffae86a3c5dbfe
-
SHA512
157c92e561cd18876ab60faf8a3d8e62633e7750accb965e86f3202b0d5ff902d3ae51fb41592d9be22672e67a713291e469a09be57e6f77dd6343090324792a
-
SSDEEP
3072:xqJogYkcSNm9V7D2YRLCm8ZdqVAxrMismEm8T:xq2kc4m9tDlhLqb
Malware Config
Extracted
C:\ZImkTWSLZ.README.txt
lockbit
http://lockbitapt2yfbt7lchxejug47kmqvqqxvvjpqkmevv4l3azl3gy6pyd.onion
http://lockbitapt5x4zkjbcqmz6frdhecqqgadevyiwqxukksspnlidyvd7qd.onion
http://lockbitapt6vx57t3eeqjofwgcglmutr3a35nygvokja5uuccip4ykyd.onion
http://lockbitapt34kvrip6xojylohhxrwsvpzdffgs5z4pbbsywnzsbdguqd.onion
http://lockbitaptc2iq4atewz2ise62q63wfktyrl4qtwuk5qax262kgtzjqd.onion
http://lockbitaptjpikdqjynvgozhgc6bgetgucdk5xjacozeaawihmoio6yd.onion
http://lockbitaptq7ephv2oigdncfhtwhpqgwmqojnxqdyhprxxfpcllqdxad.onion
http://lockbitaptstzf3er2lz6ku3xuifafq2yh5lmiqj5ncur6rtlmkteiqd.onion
http://lockbitaptoofrpignlz6dt2wqqc5z3a4evjevoa3eqdfcntxad5lmyd.onion
http://lockbitapt.uz
http://lockbitapt2yfbt7lchxejug47kmqvqqxvvjpqkmevv4l3azl3gy6pyd.onion.ly
http://lockbitapt5x4zkjbcqmz6frdhecqqgadevyiwqxukksspnlidyvd7qd.onion.ly
http://lockbitapt6vx57t3eeqjofwgcglmutr3a35nygvokja5uuccip4ykyd.onion.ly
http://lockbitapt34kvrip6xojylohhxrwsvpzdffgs5z4pbbsywnzsbdguqd.onion.ly
http://lockbitaptc2iq4atewz2ise62q63wfktyrl4qtwuk5qax262kgtzjqd.onion.ly
http://lockbitaptjpikdqjynvgozhgc6bgetgucdk5xjacozeaawihmoio6yd.onion.ly
http://lockbitaptq7ephv2oigdncfhtwhpqgwmqojnxqdyhprxxfpcllqdxad.onion.ly
http://lockbitaptstzf3er2lz6ku3xuifafq2yh5lmiqj5ncur6rtlmkteiqd.onion.ly
http://lockbitaptoofrpignlz6dt2wqqc5z3a4evjevoa3eqdfcntxad5lmyd.onion.ly
https://twitter.com/hashtag/lockbit?f=live
http://lockbitsupt7nr3fa6e7xyb73lk6bw6rcneqhoyblniiabj4uwvzapqd.onion
http://lockbitsupuhswh4izvoucoxsbnotkmgq6durg7kficg6u33zfvq3oyd.onion
http://lockbitsupn2h6be2cnqpvncyhj4rgmnwn44633hnzzmtxdvjoqlp7yd.onion
http://lockbitsupp.uz
https://tox.chat/download.html
Signatures
-
Lockbit
Ransomware family with multiple variants released since late 2019.
-
Lockbit family
-
Renames multiple (358) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
-
Deletes itself 1 IoCs
pid Process 2468 8D32.tmp -
Executes dropped EXE 1 IoCs
pid Process 2468 8D32.tmp -
Loads dropped DLL 1 IoCs
pid Process 2484 LB3.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Drops desktop.ini file(s) 2 IoCs
description ioc Process File opened for modification C:\$Recycle.Bin\S-1-5-21-3533259084-2542256011-65585152-1000\desktop.ini LB3.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3533259084-2542256011-65585152-1000\desktop.ini LB3.exe -
Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
-
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\\ZImkTWSLZ.bmp" LB3.exe Set value (str) \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\ZImkTWSLZ.bmp" LB3.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 2468 8D32.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 cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language LB3.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 8D32.tmp -
Modifies Control Panel 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Control Panel\Desktop LB3.exe Set value (str) \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Control Panel\Desktop\WallpaperStyle = "10" LB3.exe -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ZImkTWSLZ LB3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ZImkTWSLZ\DefaultIcon\ = "C:\\ProgramData\\ZImkTWSLZ.ico" LB3.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.ZImkTWSLZ LB3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.ZImkTWSLZ\ = "ZImkTWSLZ" LB3.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ZImkTWSLZ\DefaultIcon LB3.exe -
Suspicious behavior: EnumeratesProcesses 20 IoCs
pid Process 2484 LB3.exe 2484 LB3.exe 2484 LB3.exe 2484 LB3.exe 2484 LB3.exe 2484 LB3.exe 2484 LB3.exe 2484 LB3.exe 2484 LB3.exe 2484 LB3.exe 2484 LB3.exe 2484 LB3.exe 2484 LB3.exe 2484 LB3.exe 2484 LB3.exe 2484 LB3.exe 2484 LB3.exe 2484 LB3.exe 2484 LB3.exe 2484 LB3.exe -
Suspicious behavior: RenamesItself 26 IoCs
pid Process 2468 8D32.tmp 2468 8D32.tmp 2468 8D32.tmp 2468 8D32.tmp 2468 8D32.tmp 2468 8D32.tmp 2468 8D32.tmp 2468 8D32.tmp 2468 8D32.tmp 2468 8D32.tmp 2468 8D32.tmp 2468 8D32.tmp 2468 8D32.tmp 2468 8D32.tmp 2468 8D32.tmp 2468 8D32.tmp 2468 8D32.tmp 2468 8D32.tmp 2468 8D32.tmp 2468 8D32.tmp 2468 8D32.tmp 2468 8D32.tmp 2468 8D32.tmp 2468 8D32.tmp 2468 8D32.tmp 2468 8D32.tmp -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeAssignPrimaryTokenPrivilege 2484 LB3.exe Token: SeBackupPrivilege 2484 LB3.exe Token: SeDebugPrivilege 2484 LB3.exe Token: 36 2484 LB3.exe Token: SeImpersonatePrivilege 2484 LB3.exe Token: SeIncBasePriorityPrivilege 2484 LB3.exe Token: SeIncreaseQuotaPrivilege 2484 LB3.exe Token: 33 2484 LB3.exe Token: SeManageVolumePrivilege 2484 LB3.exe Token: SeProfSingleProcessPrivilege 2484 LB3.exe Token: SeRestorePrivilege 2484 LB3.exe Token: SeSecurityPrivilege 2484 LB3.exe Token: SeSystemProfilePrivilege 2484 LB3.exe Token: SeTakeOwnershipPrivilege 2484 LB3.exe Token: SeShutdownPrivilege 2484 LB3.exe Token: SeDebugPrivilege 2484 LB3.exe Token: SeBackupPrivilege 2484 LB3.exe Token: SeBackupPrivilege 2484 LB3.exe Token: SeSecurityPrivilege 2484 LB3.exe Token: SeSecurityPrivilege 2484 LB3.exe Token: SeBackupPrivilege 2484 LB3.exe Token: SeBackupPrivilege 2484 LB3.exe Token: SeSecurityPrivilege 2484 LB3.exe Token: SeSecurityPrivilege 2484 LB3.exe Token: SeBackupPrivilege 2484 LB3.exe Token: SeBackupPrivilege 2484 LB3.exe Token: SeSecurityPrivilege 2484 LB3.exe Token: SeSecurityPrivilege 2484 LB3.exe Token: SeBackupPrivilege 2484 LB3.exe Token: SeBackupPrivilege 2484 LB3.exe Token: SeSecurityPrivilege 2484 LB3.exe Token: SeSecurityPrivilege 2484 LB3.exe Token: SeBackupPrivilege 2484 LB3.exe Token: SeBackupPrivilege 2484 LB3.exe Token: SeSecurityPrivilege 2484 LB3.exe Token: SeSecurityPrivilege 2484 LB3.exe Token: SeBackupPrivilege 2484 LB3.exe Token: SeBackupPrivilege 2484 LB3.exe Token: SeSecurityPrivilege 2484 LB3.exe Token: SeSecurityPrivilege 2484 LB3.exe Token: SeBackupPrivilege 2484 LB3.exe Token: SeBackupPrivilege 2484 LB3.exe Token: SeSecurityPrivilege 2484 LB3.exe Token: SeSecurityPrivilege 2484 LB3.exe Token: SeBackupPrivilege 2484 LB3.exe Token: SeBackupPrivilege 2484 LB3.exe Token: SeSecurityPrivilege 2484 LB3.exe Token: SeSecurityPrivilege 2484 LB3.exe Token: SeBackupPrivilege 2484 LB3.exe Token: SeBackupPrivilege 2484 LB3.exe Token: SeSecurityPrivilege 2484 LB3.exe Token: SeSecurityPrivilege 2484 LB3.exe Token: SeBackupPrivilege 2484 LB3.exe Token: SeBackupPrivilege 2484 LB3.exe Token: SeSecurityPrivilege 2484 LB3.exe Token: SeSecurityPrivilege 2484 LB3.exe Token: SeBackupPrivilege 2484 LB3.exe Token: SeBackupPrivilege 2484 LB3.exe Token: SeSecurityPrivilege 2484 LB3.exe Token: SeSecurityPrivilege 2484 LB3.exe Token: SeBackupPrivilege 2484 LB3.exe Token: SeBackupPrivilege 2484 LB3.exe Token: SeSecurityPrivilege 2484 LB3.exe Token: SeSecurityPrivilege 2484 LB3.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2484 wrote to memory of 2468 2484 LB3.exe 33 PID 2484 wrote to memory of 2468 2484 LB3.exe 33 PID 2484 wrote to memory of 2468 2484 LB3.exe 33 PID 2484 wrote to memory of 2468 2484 LB3.exe 33 PID 2484 wrote to memory of 2468 2484 LB3.exe 33 PID 2468 wrote to memory of 348 2468 8D32.tmp 34 PID 2468 wrote to memory of 348 2468 8D32.tmp 34 PID 2468 wrote to memory of 348 2468 8D32.tmp 34 PID 2468 wrote to memory of 348 2468 8D32.tmp 34
Processes
-
C:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit30\Build\LB3.exe"C:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit30\Build\LB3.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:2484 -
C:\ProgramData\8D32.tmp"C:\ProgramData\8D32.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:2468 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\8D32.tmp >> NUL3⤵
- System Location Discovery: System Language Discovery
PID:348
-
-
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x14c1⤵PID:352
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
129B
MD52fa56eecc1b837a262ede850384d74bd
SHA1f710b360b85e21f8411a4741026d99f68c7fa30c
SHA2563a527c6b693a74fff16509dbcb48d20f30c3dfccdb75591280778c60b58382d1
SHA51298bca5b92907136838de8657b8faf5888726ebb20a36b21097032ab72a57ac4897552787865bff35ea60b389bb3066922bf1e7f890ae3d6b5a31ffb982221b72
-
Filesize
153KB
MD5709fc04b975440070280dcaef02b10c4
SHA126cdde22d5dbb9654fd5f02ad0a80d3595b2666b
SHA256e80e0479118e3d6e0625dca69d0adb8ece18702e486c874e1b3315485d1191dd
SHA512cb33218f921e21f627c4d847856e7f2620a27d014d7cc1c99d3acdd4d37d0177cb90045fa87f6dcff15b72791a430dbb3ee8113f61e0d86640764b77b14484b9
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Filesize
6KB
MD5cc3b08f88d95b551f10c5642d30b2e26
SHA1c5f7c5fdff909918b11da5f40c05e5e1c7314002
SHA2562870f1ed724af528485c7ce5e4b676cb263d756887fae74731e4896958fefbcc
SHA512070fd5c267febb9c00b8bf6c6d30de31602f812112ec135031690ad6f19687f8e80eab54887cd631e49b323525029a6b91983efa18a0c6b79bcf587801fec94d
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Filesize
129B
MD509bddb57b777d331845a5efcff56de1b
SHA1e08a5900a66ad1207acb97a9c2259cf532f3af6a
SHA2560db7ba51fdf6b2d932351a6a29f374be2afd59bb955ab5a3020766393785a458
SHA51289615de1f79fef1a830436db3fdee7aca6a751b7ccdd543d50a25d244d842974ca81fad9ff1c806d6344e8bc370a2f4febb0c80e46e355b96d57f24ce6eea87e
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Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf