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
119s -
max time network
120s -
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/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.
-
Renames multiple (356) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
-
Deletes itself 1 IoCs
pid Process 2220 22EC.tmp -
Executes dropped EXE 1 IoCs
pid Process 2220 22EC.tmp -
Loads dropped DLL 1 IoCs
pid Process 2060 LB3.exe -
Reads user/profile data of web browsers 2 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-1-5-21-3818056530-936619650-3554021955-1000\desktop.ini LB3.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-3818056530-936619650-3554021955-1000\desktop.ini LB3.exe -
Sets desktop wallpaper using registry 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\ZImkTWSLZ.bmp" LB3.exe Set value (str) \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\ZImkTWSLZ.bmp" LB3.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 2220 22EC.tmp -
Modifies Control Panel 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Control Panel\Desktop\WallpaperStyle = "10" LB3.exe Key created \REGISTRY\USER\S-1-5-21-3818056530-936619650-3554021955-1000\Control Panel\Desktop 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\ = "ZImkTWSLZ" LB3.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ZImkTWSLZ\DefaultIcon LB3.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ZImkTWSLZ LB3.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\ZImkTWSLZ\DefaultIcon\ = "C:\\ProgramData\\ZImkTWSLZ.ico" LB3.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 2060 LB3.exe 2060 LB3.exe 2060 LB3.exe 2060 LB3.exe 2060 LB3.exe 2060 LB3.exe 2060 LB3.exe 2060 LB3.exe 2060 LB3.exe 2060 LB3.exe 2060 LB3.exe 2060 LB3.exe 2060 LB3.exe 2060 LB3.exe -
Suspicious behavior: RenamesItself 26 IoCs
pid Process 2220 22EC.tmp 2220 22EC.tmp 2220 22EC.tmp 2220 22EC.tmp 2220 22EC.tmp 2220 22EC.tmp 2220 22EC.tmp 2220 22EC.tmp 2220 22EC.tmp 2220 22EC.tmp 2220 22EC.tmp 2220 22EC.tmp 2220 22EC.tmp 2220 22EC.tmp 2220 22EC.tmp 2220 22EC.tmp 2220 22EC.tmp 2220 22EC.tmp 2220 22EC.tmp 2220 22EC.tmp 2220 22EC.tmp 2220 22EC.tmp 2220 22EC.tmp 2220 22EC.tmp 2220 22EC.tmp 2220 22EC.tmp -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeAssignPrimaryTokenPrivilege 2060 LB3.exe Token: SeBackupPrivilege 2060 LB3.exe Token: SeDebugPrivilege 2060 LB3.exe Token: 36 2060 LB3.exe Token: SeImpersonatePrivilege 2060 LB3.exe Token: SeIncBasePriorityPrivilege 2060 LB3.exe Token: SeIncreaseQuotaPrivilege 2060 LB3.exe Token: 33 2060 LB3.exe Token: SeManageVolumePrivilege 2060 LB3.exe Token: SeProfSingleProcessPrivilege 2060 LB3.exe Token: SeRestorePrivilege 2060 LB3.exe Token: SeSecurityPrivilege 2060 LB3.exe Token: SeSystemProfilePrivilege 2060 LB3.exe Token: SeTakeOwnershipPrivilege 2060 LB3.exe Token: SeShutdownPrivilege 2060 LB3.exe Token: SeDebugPrivilege 2060 LB3.exe Token: SeBackupPrivilege 2060 LB3.exe Token: SeBackupPrivilege 2060 LB3.exe Token: SeSecurityPrivilege 2060 LB3.exe Token: SeSecurityPrivilege 2060 LB3.exe Token: SeBackupPrivilege 2060 LB3.exe Token: SeBackupPrivilege 2060 LB3.exe Token: SeSecurityPrivilege 2060 LB3.exe Token: SeSecurityPrivilege 2060 LB3.exe Token: SeBackupPrivilege 2060 LB3.exe Token: SeBackupPrivilege 2060 LB3.exe Token: SeSecurityPrivilege 2060 LB3.exe Token: SeSecurityPrivilege 2060 LB3.exe Token: SeBackupPrivilege 2060 LB3.exe Token: SeBackupPrivilege 2060 LB3.exe Token: SeSecurityPrivilege 2060 LB3.exe Token: SeSecurityPrivilege 2060 LB3.exe Token: SeBackupPrivilege 2060 LB3.exe Token: SeBackupPrivilege 2060 LB3.exe Token: SeSecurityPrivilege 2060 LB3.exe Token: SeSecurityPrivilege 2060 LB3.exe Token: SeBackupPrivilege 2060 LB3.exe Token: SeBackupPrivilege 2060 LB3.exe Token: SeSecurityPrivilege 2060 LB3.exe Token: SeSecurityPrivilege 2060 LB3.exe Token: SeBackupPrivilege 2060 LB3.exe Token: SeBackupPrivilege 2060 LB3.exe Token: SeSecurityPrivilege 2060 LB3.exe Token: SeSecurityPrivilege 2060 LB3.exe Token: SeBackupPrivilege 2060 LB3.exe Token: SeBackupPrivilege 2060 LB3.exe Token: SeSecurityPrivilege 2060 LB3.exe Token: SeSecurityPrivilege 2060 LB3.exe Token: SeBackupPrivilege 2060 LB3.exe Token: SeBackupPrivilege 2060 LB3.exe Token: SeSecurityPrivilege 2060 LB3.exe Token: SeSecurityPrivilege 2060 LB3.exe Token: SeBackupPrivilege 2060 LB3.exe Token: SeBackupPrivilege 2060 LB3.exe Token: SeSecurityPrivilege 2060 LB3.exe Token: SeSecurityPrivilege 2060 LB3.exe Token: SeBackupPrivilege 2060 LB3.exe Token: SeBackupPrivilege 2060 LB3.exe Token: SeSecurityPrivilege 2060 LB3.exe Token: SeSecurityPrivilege 2060 LB3.exe Token: SeBackupPrivilege 2060 LB3.exe Token: SeBackupPrivilege 2060 LB3.exe Token: SeSecurityPrivilege 2060 LB3.exe Token: SeSecurityPrivilege 2060 LB3.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2060 wrote to memory of 2220 2060 LB3.exe 30 PID 2060 wrote to memory of 2220 2060 LB3.exe 30 PID 2060 wrote to memory of 2220 2060 LB3.exe 30 PID 2060 wrote to memory of 2220 2060 LB3.exe 30 PID 2060 wrote to memory of 2220 2060 LB3.exe 30 PID 2220 wrote to memory of 1200 2220 22EC.tmp 31 PID 2220 wrote to memory of 1200 2220 22EC.tmp 31 PID 2220 wrote to memory of 1200 2220 22EC.tmp 31 PID 2220 wrote to memory of 1200 2220 22EC.tmp 31
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
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2060 -
C:\ProgramData\22EC.tmp"C:\ProgramData\22EC.tmp"2⤵
- Deletes itself
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
PID:2220 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\22EC.tmp >> NUL3⤵PID:1200
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-
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x14c1⤵PID:2096
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
129B
MD56f5dfe7e60d0351ffaeadfa620b55468
SHA1b5ade5df63861cbb8605226c6ae75ef8847103ad
SHA256750c9c492f7bc0983f300dddf4890d3a77eb293cf162bf5c22c014d7f94b1442
SHA5127af1557579913e048c724f0426562919a73edd32cf61afc32328ead3523a51c961f274765ceaa82014e3507ed132e8903c915f86e5fca18ed5df5f477f978552
-
Filesize
153KB
MD592eb3789e414e91470ab7804cd77bcfd
SHA148bccd2a11a46db7a8b347b2687f39632231b3f5
SHA256b46fccbfdda8f326a8b1774194fcf9ed5c8bdcae9e3e56e445a25ebfa902ad98
SHA5121d9e97f62718d21851b0653f3572f78a6f8dc33ad99e1d3dc7ba9bde1d36222bb5c35b797024cd490b2c099ffe4da2a85bbf29d4de0a3902295c32ae73500624
-
Filesize
6KB
MD5d25ac73a588f66149fde32cae1fea314
SHA111d55f28ad35179c65fae9c8823d3a120b07839b
SHA2562a293db97f78abc2bb6ec6eaec7031edc299a837f7f016b5ddbbcbfb93cca2a6
SHA51275ae9efa92930f5c5fbc9a09435e43d96e2ceb0edca95f4c049611c2aac12e5977c4a10321b4630c31658e6d4ab908ae249756be3c7ce4e5594c9875e3276c7e
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Filesize
129B
MD5631331c4bdc5672c5296a3b015f183cd
SHA1c7f07f6276e077753d031c3ee36c634e44c2e34a
SHA256c9ffbb6dde1e0245a5bddd8dca42bd39b0a7193ca9e3df4f63c26f681a80badc
SHA51255dfe79c65d8ea9652baf9fa6b29dd40445b4193b863d19d77a2d00ec36a17a0b58ad68aca74a9789c81ce307e695fea873fe5e90a5cf00922fa2dbb37bb3b1e
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Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf