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
118s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20250207-en -
resource tags
arch:x64arch:x86image:win7-20250207-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/LockBit3Builder/Build/LB3_ReflectiveDll_DllMain.dll
-
Size
107KB
-
MD5
660679f8d44100cd240add9862598d66
-
SHA1
afca2fd0af09265e099e8cf5b898ea45f01f288a
-
SHA256
6667b29705a3c882d536589dc9d7193725ecdbc42c8bb0cc60f3c9d6d0240275
-
SHA512
d347ed75a08678af1eb449230f437d6f0fb3da6f98a6f7d36eaf73c7cd1399ec9712b940b370a92fa9b8d6a2ece5c607e86ecbfa12cc6cda3df85d66475091dd
-
SSDEEP
3072:n9bfmBYtGb2kZlBmLmmnFPNeSDkDqS4AJ:n9ptGakZlsLXFISDzAJ
Malware Config
Extracted
C:\Users\HHuYRxB06.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 (349) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
-
Executes dropped EXE 2 IoCs
pid Process 2492 900F.tmp 536 909D.tmp -
Loads dropped DLL 2 IoCs
pid Process 2352 rundll32.exe 2352 rundll32.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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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-1-5-21-677481364-2238709445-1347953534-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\HHuYRxB06.bmp" rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\HHuYRxB06.bmp" rundll32.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 9 IoCs
pid Process 2352 rundll32.exe 2352 rundll32.exe 2352 rundll32.exe 2352 rundll32.exe 2352 rundll32.exe 2352 rundll32.exe 2492 900F.tmp 2352 rundll32.exe 536 909D.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 cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 909D.tmp -
Modifies Control Panel 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Control Panel\Desktop rundll32.exe Set value (str) \REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Control Panel\Desktop\WallpaperStyle = "10" rundll32.exe -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.HHuYRxB06 rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.HHuYRxB06\ = "HHuYRxB06" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\HHuYRxB06\DefaultIcon rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\HHuYRxB06 rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\HHuYRxB06\DefaultIcon\ = "C:\\ProgramData\\HHuYRxB06.ico" rundll32.exe -
Suspicious behavior: EnumeratesProcesses 10 IoCs
pid Process 2352 rundll32.exe 2352 rundll32.exe 2352 rundll32.exe 2352 rundll32.exe 2352 rundll32.exe 2352 rundll32.exe 2352 rundll32.exe 2352 rundll32.exe 2352 rundll32.exe 2352 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeAssignPrimaryTokenPrivilege 2352 rundll32.exe Token: SeBackupPrivilege 2352 rundll32.exe Token: SeDebugPrivilege 2352 rundll32.exe Token: 36 2352 rundll32.exe Token: SeImpersonatePrivilege 2352 rundll32.exe Token: SeIncBasePriorityPrivilege 2352 rundll32.exe Token: SeIncreaseQuotaPrivilege 2352 rundll32.exe Token: 33 2352 rundll32.exe Token: SeManageVolumePrivilege 2352 rundll32.exe Token: SeProfSingleProcessPrivilege 2352 rundll32.exe Token: SeRestorePrivilege 2352 rundll32.exe Token: SeSecurityPrivilege 2352 rundll32.exe Token: SeSystemProfilePrivilege 2352 rundll32.exe Token: SeTakeOwnershipPrivilege 2352 rundll32.exe Token: SeShutdownPrivilege 2352 rundll32.exe Token: SeDebugPrivilege 2352 rundll32.exe Token: SeBackupPrivilege 2352 rundll32.exe Token: SeBackupPrivilege 2352 rundll32.exe Token: SeSecurityPrivilege 2352 rundll32.exe Token: SeSecurityPrivilege 2352 rundll32.exe Token: SeBackupPrivilege 2352 rundll32.exe Token: SeBackupPrivilege 2352 rundll32.exe Token: SeSecurityPrivilege 2352 rundll32.exe Token: SeSecurityPrivilege 2352 rundll32.exe Token: SeBackupPrivilege 2352 rundll32.exe Token: SeBackupPrivilege 2352 rundll32.exe Token: SeSecurityPrivilege 2352 rundll32.exe Token: SeSecurityPrivilege 2352 rundll32.exe Token: SeBackupPrivilege 2352 rundll32.exe Token: SeBackupPrivilege 2352 rundll32.exe Token: SeSecurityPrivilege 2352 rundll32.exe Token: SeSecurityPrivilege 2352 rundll32.exe Token: SeBackupPrivilege 2352 rundll32.exe Token: SeBackupPrivilege 2352 rundll32.exe Token: SeSecurityPrivilege 2352 rundll32.exe Token: SeSecurityPrivilege 2352 rundll32.exe Token: SeBackupPrivilege 2352 rundll32.exe Token: SeBackupPrivilege 2352 rundll32.exe Token: SeSecurityPrivilege 2352 rundll32.exe Token: SeSecurityPrivilege 2352 rundll32.exe Token: SeBackupPrivilege 2352 rundll32.exe Token: SeBackupPrivilege 2352 rundll32.exe Token: SeSecurityPrivilege 2352 rundll32.exe Token: SeSecurityPrivilege 2352 rundll32.exe Token: SeBackupPrivilege 2352 rundll32.exe Token: SeBackupPrivilege 2352 rundll32.exe Token: SeSecurityPrivilege 2352 rundll32.exe Token: SeSecurityPrivilege 2352 rundll32.exe Token: SeBackupPrivilege 2352 rundll32.exe Token: SeBackupPrivilege 2352 rundll32.exe Token: SeSecurityPrivilege 2352 rundll32.exe Token: SeSecurityPrivilege 2352 rundll32.exe Token: SeBackupPrivilege 2352 rundll32.exe Token: SeBackupPrivilege 2352 rundll32.exe Token: SeSecurityPrivilege 2352 rundll32.exe Token: SeSecurityPrivilege 2352 rundll32.exe Token: SeBackupPrivilege 2352 rundll32.exe Token: SeBackupPrivilege 2352 rundll32.exe Token: SeSecurityPrivilege 2352 rundll32.exe Token: SeSecurityPrivilege 2352 rundll32.exe Token: SeBackupPrivilege 2352 rundll32.exe Token: SeBackupPrivilege 2352 rundll32.exe Token: SeSecurityPrivilege 2352 rundll32.exe Token: SeSecurityPrivilege 2352 rundll32.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 2720 wrote to memory of 2352 2720 rundll32.exe 30 PID 2720 wrote to memory of 2352 2720 rundll32.exe 30 PID 2720 wrote to memory of 2352 2720 rundll32.exe 30 PID 2720 wrote to memory of 2352 2720 rundll32.exe 30 PID 2720 wrote to memory of 2352 2720 rundll32.exe 30 PID 2720 wrote to memory of 2352 2720 rundll32.exe 30 PID 2720 wrote to memory of 2352 2720 rundll32.exe 30 PID 2352 wrote to memory of 2492 2352 rundll32.exe 33 PID 2352 wrote to memory of 2492 2352 rundll32.exe 33 PID 2352 wrote to memory of 2492 2352 rundll32.exe 33 PID 2352 wrote to memory of 2492 2352 rundll32.exe 33 PID 2352 wrote to memory of 2492 2352 rundll32.exe 33 PID 2352 wrote to memory of 536 2352 rundll32.exe 34 PID 2352 wrote to memory of 536 2352 rundll32.exe 34 PID 2352 wrote to memory of 536 2352 rundll32.exe 34 PID 2352 wrote to memory of 536 2352 rundll32.exe 34 PID 2352 wrote to memory of 536 2352 rundll32.exe 34 PID 536 wrote to memory of 1076 536 909D.tmp 35 PID 536 wrote to memory of 1076 536 909D.tmp 35 PID 536 wrote to memory of 1076 536 909D.tmp 35 PID 536 wrote to memory of 1076 536 909D.tmp 35
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit3Builder\Build\LB3_ReflectiveDll_DllMain.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:2720 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit3Builder\Build\LB3_ReflectiveDll_DllMain.dll,#12⤵
- Loads dropped DLL
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2352 -
C:\ProgramData\900F.tmp"C:\ProgramData\900F.tmp"3⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:2492
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C:\ProgramData\909D.tmp"C:\ProgramData\909D.tmp"3⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:536 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\909D.tmp >> NUL4⤵
- System Location Discovery: System Language Discovery
PID:1076
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-
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x14c1⤵PID:1976
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
6KB
MD54f4b8cde8afc16913ea762d2893c02ad
SHA109fd2f04ee8b381b70c37f5c452d66b7be38c65e
SHA2568095d78006dd5c0235644a0214ae472518588c6a2b0db153a4ac9a026a5e9187
SHA5126fea925a09d4734f261f602e13fdda702744fe68c3a804b935fe16be1e25117709c82d513df393517ff6a221fdd1c767025445f50dcbeeca43d86758469ff47c
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Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf