Overview
overview
10Static
static
10LockBit-Bl...ld.bat
windows7-x64
1LockBit-Bl...ld.bat
windows10-2004-x64
1LockBit-Bl...B3.exe
windows7-x64
10LockBit-Bl...B3.exe
windows10-2004-x64
10LockBit-Bl...or.exe
windows7-x64
1LockBit-Bl...or.exe
windows10-2004-x64
1LockBit-Bl...in.dll
windows7-x64
10LockBit-Bl...in.dll
windows10-2004-x64
7LockBit-Bl...32.dll
windows7-x64
1LockBit-Bl...32.dll
windows10-2004-x64
1LockBit-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
1LockBit-Bl...en.exe
windows7-x64
1LockBit-Bl...en.exe
windows10-2004-x64
1LockBit-Bl...ld.bat
windows7-x64
1LockBit-Bl...ld.bat
windows10-2004-x64
1LockBit-Bl...B3.exe
windows7-x64
10LockBit-Bl...B3.exe
windows10-2004-x64
10LockBit-Bl...or.exe
windows7-x64
5LockBit-Bl...or.exe
windows10-2004-x64
5LockBit-Bl...in.dll
windows7-x64
10LockBit-Bl...in.dll
windows10-2004-x64
7LockBit-Bl...32.dll
windows7-x64
1LockBit-Bl...32.dll
windows10-2004-x64
1LockBit-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
130s -
max time network
127s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
27-01-2024 16:14
Behavioral task
behavioral1
Sample
LockBit-Black-Builder-main/LockBit30/Build.bat
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
LockBit-Black-Builder-main/LockBit30/Build.bat
Resource
win10v2004-20231222-en
Behavioral task
behavioral3
Sample
LockBit-Black-Builder-main/LockBit30/Build/LB3.exe
Resource
win7-20231215-en
Behavioral task
behavioral4
Sample
LockBit-Black-Builder-main/LockBit30/Build/LB3.exe
Resource
win10v2004-20231222-en
Behavioral task
behavioral5
Sample
LockBit-Black-Builder-main/LockBit30/Build/LB3Decryptor.exe
Resource
win7-20231129-en
Behavioral task
behavioral6
Sample
LockBit-Black-Builder-main/LockBit30/Build/LB3Decryptor.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral7
Sample
LockBit-Black-Builder-main/LockBit30/Build/LB3_ReflectiveDll_DllMain.dll
Resource
win7-20231215-en
Behavioral task
behavioral8
Sample
LockBit-Black-Builder-main/LockBit30/Build/LB3_ReflectiveDll_DllMain.dll
Resource
win10v2004-20231222-en
Behavioral task
behavioral9
Sample
LockBit-Black-Builder-main/LockBit30/Build/LB3_Rundll32.dll
Resource
win7-20231215-en
Behavioral task
behavioral10
Sample
LockBit-Black-Builder-main/LockBit30/Build/LB3_Rundll32.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral11
Sample
LockBit-Black-Builder-main/LockBit30/Build/LB3_Rundll32_pass.dll
Resource
win7-20231215-en
Behavioral task
behavioral12
Sample
LockBit-Black-Builder-main/LockBit30/Build/LB3_Rundll32_pass.dll
Resource
win10v2004-20231222-en
Behavioral task
behavioral13
Sample
LockBit-Black-Builder-main/LockBit30/Build/LB3_pass.exe
Resource
win7-20231215-en
Behavioral task
behavioral14
Sample
LockBit-Black-Builder-main/LockBit30/Build/LB3_pass.exe
Resource
win10v2004-20231222-en
Behavioral task
behavioral15
Sample
LockBit-Black-Builder-main/LockBit30/builder.exe
Resource
win7-20231129-en
Behavioral task
behavioral16
Sample
LockBit-Black-Builder-main/LockBit30/builder.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral17
Sample
LockBit-Black-Builder-main/LockBit30/keygen.exe
Resource
win7-20231215-en
Behavioral task
behavioral18
Sample
LockBit-Black-Builder-main/LockBit30/keygen.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral19
Sample
LockBit-Black-Builder-main/LockBit3Builder/Build.bat
Resource
win7-20231129-en
Behavioral task
behavioral20
Sample
LockBit-Black-Builder-main/LockBit3Builder/Build.bat
Resource
win10v2004-20231222-en
Behavioral task
behavioral21
Sample
LockBit-Black-Builder-main/LockBit3Builder/Build/LB3.exe
Resource
win7-20231215-en
Behavioral task
behavioral22
Sample
LockBit-Black-Builder-main/LockBit3Builder/Build/LB3.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral23
Sample
LockBit-Black-Builder-main/LockBit3Builder/Build/LB3Decryptor.exe
Resource
win7-20231215-en
Behavioral task
behavioral24
Sample
LockBit-Black-Builder-main/LockBit3Builder/Build/LB3Decryptor.exe
Resource
win10v2004-20231215-en
Behavioral task
behavioral25
Sample
LockBit-Black-Builder-main/LockBit3Builder/Build/LB3_ReflectiveDll_DllMain.dll
Resource
win7-20231215-en
Behavioral task
behavioral26
Sample
LockBit-Black-Builder-main/LockBit3Builder/Build/LB3_ReflectiveDll_DllMain.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral27
Sample
LockBit-Black-Builder-main/LockBit3Builder/Build/LB3_Rundll32.dll
Resource
win7-20231215-en
Behavioral task
behavioral28
Sample
LockBit-Black-Builder-main/LockBit3Builder/Build/LB3_Rundll32.dll
Resource
win10v2004-20231215-en
Behavioral task
behavioral29
Sample
LockBit-Black-Builder-main/LockBit3Builder/Build/LB3_Rundll32_pass.dll
Resource
win7-20231129-en
Behavioral task
behavioral30
Sample
LockBit-Black-Builder-main/LockBit3Builder/Build/LB3_Rundll32_pass.dll
Resource
win10v2004-20231222-en
Behavioral task
behavioral31
Sample
LockBit-Black-Builder-main/LockBit3Builder/Build/LB3_pass.exe
Resource
win7-20231215-en
Behavioral task
behavioral32
Sample
LockBit-Black-Builder-main/LockBit3Builder/Build/LB3_pass.exe
Resource
win10v2004-20231215-en
General
-
Target
LockBit-Black-Builder-main/LockBit3Builder/Build/LB3.exe
-
Size
153KB
-
MD5
a77aa09d078b9380029e6100edbe2c83
-
SHA1
6fbb43a72056d7432434e123e77234cafafdf6ea
-
SHA256
4af96f0de6c0c89158c41974b4323869343e169b1f2a95a7960646d6b0edc3ea
-
SHA512
596c290ac55641df4220e8821bc51cc24f08552cca8e36c37c6ce641e8e3b8e9fa4ff56d0497e64e6bca92ca4bef07fca8ce3442297d2c17b829e7281a239153
-
SSDEEP
3072:96glyuxE4GsUPnliByocWepfd1D5nZ42zYWkD:96gDBGpvEByocWeFzE+rk
Malware Config
Extracted
C:\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.
-
Renames multiple (327) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
-
Deletes itself 1 IoCs
pid Process 1156 4D36.tmp -
Executes dropped EXE 1 IoCs
pid Process 1156 4D36.tmp -
Loads dropped DLL 1 IoCs
pid Process 2712 LB3.exe -
Reads user/profile data of web browsers 2 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-1-5-21-3308111660-3636268597-2291490419-1000\desktop.ini LB3.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3308111660-3636268597-2291490419-1000\desktop.ini LB3.exe -
Sets desktop wallpaper using registry 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\HHuYRxB06.bmp" LB3.exe Set value (str) \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\HHuYRxB06.bmp" LB3.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
pid Process 2712 LB3.exe 2712 LB3.exe 2712 LB3.exe 2712 LB3.exe 1156 4D36.tmp -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Modifies Control Panel 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Control Panel\Desktop LB3.exe Set value (str) \REGISTRY\USER\S-1-5-21-3308111660-3636268597-2291490419-1000\Control Panel\Desktop\WallpaperStyle = "10" LB3.exe -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.HHuYRxB06 LB3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.HHuYRxB06\ = "HHuYRxB06" LB3.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\HHuYRxB06\DefaultIcon LB3.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\HHuYRxB06 LB3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\HHuYRxB06\DefaultIcon\ = "C:\\ProgramData\\HHuYRxB06.ico" LB3.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 2712 LB3.exe 2712 LB3.exe 2712 LB3.exe 2712 LB3.exe 2712 LB3.exe 2712 LB3.exe 2712 LB3.exe 2712 LB3.exe 2712 LB3.exe 2712 LB3.exe 2712 LB3.exe 2712 LB3.exe 2712 LB3.exe 2712 LB3.exe -
Suspicious behavior: RenamesItself 26 IoCs
pid Process 1156 4D36.tmp 1156 4D36.tmp 1156 4D36.tmp 1156 4D36.tmp 1156 4D36.tmp 1156 4D36.tmp 1156 4D36.tmp 1156 4D36.tmp 1156 4D36.tmp 1156 4D36.tmp 1156 4D36.tmp 1156 4D36.tmp 1156 4D36.tmp 1156 4D36.tmp 1156 4D36.tmp 1156 4D36.tmp 1156 4D36.tmp 1156 4D36.tmp 1156 4D36.tmp 1156 4D36.tmp 1156 4D36.tmp 1156 4D36.tmp 1156 4D36.tmp 1156 4D36.tmp 1156 4D36.tmp 1156 4D36.tmp -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeAssignPrimaryTokenPrivilege 2712 LB3.exe Token: SeBackupPrivilege 2712 LB3.exe Token: SeDebugPrivilege 2712 LB3.exe Token: 36 2712 LB3.exe Token: SeImpersonatePrivilege 2712 LB3.exe Token: SeIncBasePriorityPrivilege 2712 LB3.exe Token: SeIncreaseQuotaPrivilege 2712 LB3.exe Token: 33 2712 LB3.exe Token: SeManageVolumePrivilege 2712 LB3.exe Token: SeProfSingleProcessPrivilege 2712 LB3.exe Token: SeRestorePrivilege 2712 LB3.exe Token: SeSecurityPrivilege 2712 LB3.exe Token: SeSystemProfilePrivilege 2712 LB3.exe Token: SeTakeOwnershipPrivilege 2712 LB3.exe Token: SeShutdownPrivilege 2712 LB3.exe Token: SeDebugPrivilege 2712 LB3.exe Token: SeBackupPrivilege 2712 LB3.exe Token: SeBackupPrivilege 2712 LB3.exe Token: SeSecurityPrivilege 2712 LB3.exe Token: SeSecurityPrivilege 2712 LB3.exe Token: SeBackupPrivilege 2712 LB3.exe Token: SeBackupPrivilege 2712 LB3.exe Token: SeSecurityPrivilege 2712 LB3.exe Token: SeSecurityPrivilege 2712 LB3.exe Token: SeBackupPrivilege 2712 LB3.exe Token: SeBackupPrivilege 2712 LB3.exe Token: SeSecurityPrivilege 2712 LB3.exe Token: SeSecurityPrivilege 2712 LB3.exe Token: SeBackupPrivilege 2712 LB3.exe Token: SeBackupPrivilege 2712 LB3.exe Token: SeSecurityPrivilege 2712 LB3.exe Token: SeSecurityPrivilege 2712 LB3.exe Token: SeBackupPrivilege 2712 LB3.exe Token: SeBackupPrivilege 2712 LB3.exe Token: SeSecurityPrivilege 2712 LB3.exe Token: SeSecurityPrivilege 2712 LB3.exe Token: SeBackupPrivilege 2712 LB3.exe Token: SeBackupPrivilege 2712 LB3.exe Token: SeSecurityPrivilege 2712 LB3.exe Token: SeSecurityPrivilege 2712 LB3.exe Token: SeBackupPrivilege 2712 LB3.exe Token: SeBackupPrivilege 2712 LB3.exe Token: SeSecurityPrivilege 2712 LB3.exe Token: SeSecurityPrivilege 2712 LB3.exe Token: SeBackupPrivilege 2712 LB3.exe Token: SeBackupPrivilege 2712 LB3.exe Token: SeSecurityPrivilege 2712 LB3.exe Token: SeSecurityPrivilege 2712 LB3.exe Token: SeBackupPrivilege 2712 LB3.exe Token: SeBackupPrivilege 2712 LB3.exe Token: SeSecurityPrivilege 2712 LB3.exe Token: SeSecurityPrivilege 2712 LB3.exe Token: SeBackupPrivilege 2712 LB3.exe Token: SeBackupPrivilege 2712 LB3.exe Token: SeSecurityPrivilege 2712 LB3.exe Token: SeSecurityPrivilege 2712 LB3.exe Token: SeBackupPrivilege 2712 LB3.exe Token: SeBackupPrivilege 2712 LB3.exe Token: SeSecurityPrivilege 2712 LB3.exe Token: SeSecurityPrivilege 2712 LB3.exe Token: SeBackupPrivilege 2712 LB3.exe Token: SeBackupPrivilege 2712 LB3.exe Token: SeSecurityPrivilege 2712 LB3.exe Token: SeSecurityPrivilege 2712 LB3.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2712 wrote to memory of 1156 2712 LB3.exe 32 PID 2712 wrote to memory of 1156 2712 LB3.exe 32 PID 2712 wrote to memory of 1156 2712 LB3.exe 32 PID 2712 wrote to memory of 1156 2712 LB3.exe 32 PID 2712 wrote to memory of 1156 2712 LB3.exe 32 PID 1156 wrote to memory of 3052 1156 4D36.tmp 33 PID 1156 wrote to memory of 3052 1156 4D36.tmp 33 PID 1156 wrote to memory of 3052 1156 4D36.tmp 33 PID 1156 wrote to memory of 3052 1156 4D36.tmp 33
Processes
-
C:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit3Builder\Build\LB3.exe"C:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit3Builder\Build\LB3.exe"1⤵
- Loads dropped DLL
- Drops desktop.ini file(s)
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2712 -
C:\ProgramData\4D36.tmp"C:\ProgramData\4D36.tmp"2⤵
- Deletes itself
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:1156 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\4D36.tmp >> NUL3⤵PID:3052
-
-
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x1541⤵PID:2116
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
129B
MD596b1c8c675712034845852bafdbda9df
SHA1d367fa4723951786e236d1430240ca95d218aee4
SHA25619f9879e381756a13c2eecdca2d392a0c6d9c6c43771f906dc6e134ce8cf9b2f
SHA51265fd6d55a0f03bb98a95bcd85b8f755b8bb7a1d1e2c54153e87f06979984ccdbc2ddde0ce6c5794389757ac5ad87ee5f5727c489290286f36d9da97a7a49c880
-
Filesize
6KB
MD5be73bc18c03ffe0ad12338235b6a9cd7
SHA1c1197a1c0b8b6670e1d0fe1778ae23d304502124
SHA256bb3ea393bb84a11b01ff05ea69bae9870434e726ac4009e57e436da2e1a54eee
SHA512d7396e63dfc7b687e158ec67b2e2a26751bbb51f611e4613ef9960136132e5f4a0b844b7c454e44ab5c5255b1f715a53abf250d63a1912b3c8ea8a03e4f2401a
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Filesize
153KB
MD53ed3aa4f41e50e419b9eaa5eaab31dd6
SHA1ab6cd0f8e1dda4521c5f275a39a933d02ced1101
SHA256358da084e31839feee1ab3324731b95cb91a4bd037b3701017fcde7391426676
SHA51261c62b4a03314d294426a1238d16e112c29538d98547216666c9e2e9b7052f8d4ffbbd5b57aad888ab7782e090c412decc9d23997be0a932e7e33c982ab7e7f0
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Filesize
129B
MD5de4e93301699530032ff43ababdc0499
SHA1fc640f01d10faae66ed9dedc2037a2c0f60e302a
SHA256574e3206fb1bcecfdeb42f2423a2ac953034a2fc05f60b68b9918f2cdda3a922
SHA51277fbd844487768a8ef5da3a27854034f5627b21c7de432be664bfd333e178f845390dcce463b8a313df0a02d887364d5ae8351122980b941d8345d793eaefd16
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Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf