Overview
overview
10Static
static
10LockBit-Bl...in.zip
windows10-ltsc_2021-x64
LockBit-Bl...in.zip
windows7-x64
LockBit-Bl...in.zip
windows10-2004-x64
LockBit-Bl...in.zip
windows10-ltsc_2021-x64
LockBit-Bl...in.zip
windows11-21h2-x64
LockBit-Bl...B3.exe
windows10-ltsc_2021-x64
10LockBit-Bl...B3.exe
windows7-x64
10LockBit-Bl...B3.exe
windows10-2004-x64
10LockBit-Bl...B3.exe
windows10-ltsc_2021-x64
10LockBit-Bl...B3.exe
windows11-21h2-x64
10LockBit-Bl...or.exe
windows10-ltsc_2021-x64
7LockBit-Bl...or.exe
windows7-x64
7LockBit-Bl...or.exe
windows10-2004-x64
7LockBit-Bl...or.exe
windows10-ltsc_2021-x64
7LockBit-Bl...or.exe
windows11-21h2-x64
7LockBit-Bl...ss.exe
windows10-2004-x64
10LockBit-Bl...ss.exe
windows7-x64
10LockBit-Bl...ss.exe
windows10-2004-x64
10LockBit-Bl...ss.exe
windows10-ltsc_2021-x64
10LockBit-Bl...ss.exe
windows11-21h2-x64
10LockBit-Bl...er.exe
windows10-ltsc_2021-x64
3LockBit-Bl...er.exe
windows7-x64
1LockBit-Bl...er.exe
windows10-2004-x64
3LockBit-Bl...er.exe
windows10-ltsc_2021-x64
3LockBit-Bl...er.exe
windows11-21h2-x64
3LockBit-Bl...en.exe
windows10-2004-x64
3LockBit-Bl...en.exe
windows7-x64
1LockBit-Bl...en.exe
windows10-2004-x64
3LockBit-Bl...en.exe
windows10-ltsc_2021-x64
3LockBit-Bl...en.exe
windows11-21h2-x64
3Resubmissions
25/03/2025, 13:22
250325-qmadtazpt8 1005/02/2025, 11:27
250205-nkmv1swker 1023/05/2024, 09:35
240523-lkmh5scb37 1028/04/2024, 14:29
240428-rth5zahg49 10Analysis
-
max time kernel
118s -
max time network
119s -
platform
windows7_x64 -
resource
win7-20250207-en -
resource tags
arch:x64arch:x86image:win7-20250207-enlocale:en-usos:windows7-x64system -
submitted
25/03/2025, 13:22
Behavioral task
behavioral1
Sample
LockBit-Black-Builder-main.zip
Resource
win10ltsc2021-20250314-en
Behavioral task
behavioral2
Sample
LockBit-Black-Builder-main.zip
Resource
win7-20241010-en
Behavioral task
behavioral3
Sample
LockBit-Black-Builder-main.zip
Resource
win10v2004-20250314-en
Behavioral task
behavioral4
Sample
LockBit-Black-Builder-main.zip
Resource
win10ltsc2021-20250314-en
Behavioral task
behavioral5
Sample
LockBit-Black-Builder-main.zip
Resource
win11-20250314-en
Behavioral task
behavioral6
Sample
LockBit-Black-Builder-main/LockBit-Black-Builder-main/LockBit30/Build/LB3.exe
Resource
win10ltsc2021-20250314-en
Behavioral task
behavioral7
Sample
LockBit-Black-Builder-main/LockBit-Black-Builder-main/LockBit30/Build/LB3.exe
Resource
win7-20250207-en
Behavioral task
behavioral8
Sample
LockBit-Black-Builder-main/LockBit-Black-Builder-main/LockBit30/Build/LB3.exe
Resource
win10v2004-20250314-en
Behavioral task
behavioral9
Sample
LockBit-Black-Builder-main/LockBit-Black-Builder-main/LockBit30/Build/LB3.exe
Resource
win10ltsc2021-20250314-en
Behavioral task
behavioral10
Sample
LockBit-Black-Builder-main/LockBit-Black-Builder-main/LockBit30/Build/LB3.exe
Resource
win11-20250313-en
Behavioral task
behavioral11
Sample
LockBit-Black-Builder-main/LockBit-Black-Builder-main/LockBit30/Build/LB3Decryptor.exe
Resource
win10ltsc2021-20250314-en
Behavioral task
behavioral12
Sample
LockBit-Black-Builder-main/LockBit-Black-Builder-main/LockBit30/Build/LB3Decryptor.exe
Resource
win7-20240729-en
Behavioral task
behavioral13
Sample
LockBit-Black-Builder-main/LockBit-Black-Builder-main/LockBit30/Build/LB3Decryptor.exe
Resource
win10v2004-20250314-en
Behavioral task
behavioral14
Sample
LockBit-Black-Builder-main/LockBit-Black-Builder-main/LockBit30/Build/LB3Decryptor.exe
Resource
win10ltsc2021-20250314-en
Behavioral task
behavioral15
Sample
LockBit-Black-Builder-main/LockBit-Black-Builder-main/LockBit30/Build/LB3Decryptor.exe
Resource
win11-20250314-en
Behavioral task
behavioral16
Sample
LockBit-Black-Builder-main/LockBit-Black-Builder-main/LockBit30/Build/LB3_pass.exe
Resource
win10v2004-20250314-en
Behavioral task
behavioral17
Sample
LockBit-Black-Builder-main/LockBit-Black-Builder-main/LockBit30/Build/LB3_pass.exe
Resource
win7-20241010-en
Behavioral task
behavioral18
Sample
LockBit-Black-Builder-main/LockBit-Black-Builder-main/LockBit30/Build/LB3_pass.exe
Resource
win10v2004-20250314-en
Behavioral task
behavioral19
Sample
LockBit-Black-Builder-main/LockBit-Black-Builder-main/LockBit30/Build/LB3_pass.exe
Resource
win10ltsc2021-20250314-en
Behavioral task
behavioral20
Sample
LockBit-Black-Builder-main/LockBit-Black-Builder-main/LockBit30/Build/LB3_pass.exe
Resource
win11-20250314-en
Behavioral task
behavioral21
Sample
LockBit-Black-Builder-main/LockBit-Black-Builder-main/LockBit30/builder.exe
Resource
win10ltsc2021-20250314-en
Behavioral task
behavioral22
Sample
LockBit-Black-Builder-main/LockBit-Black-Builder-main/LockBit30/builder.exe
Resource
win7-20240903-en
Behavioral task
behavioral23
Sample
LockBit-Black-Builder-main/LockBit-Black-Builder-main/LockBit30/builder.exe
Resource
win10v2004-20250314-en
Behavioral task
behavioral24
Sample
LockBit-Black-Builder-main/LockBit-Black-Builder-main/LockBit30/builder.exe
Resource
win10ltsc2021-20250314-en
Behavioral task
behavioral25
Sample
LockBit-Black-Builder-main/LockBit-Black-Builder-main/LockBit30/builder.exe
Resource
win11-20250313-en
Behavioral task
behavioral26
Sample
LockBit-Black-Builder-main/LockBit-Black-Builder-main/LockBit30/keygen.exe
Resource
win10v2004-20250314-en
Behavioral task
behavioral27
Sample
LockBit-Black-Builder-main/LockBit-Black-Builder-main/LockBit30/keygen.exe
Resource
win7-20241010-en
Behavioral task
behavioral28
Sample
LockBit-Black-Builder-main/LockBit-Black-Builder-main/LockBit30/keygen.exe
Resource
win10v2004-20250313-en
Behavioral task
behavioral29
Sample
LockBit-Black-Builder-main/LockBit-Black-Builder-main/LockBit30/keygen.exe
Resource
win10ltsc2021-20250314-en
Behavioral task
behavioral30
Sample
LockBit-Black-Builder-main/LockBit-Black-Builder-main/LockBit30/keygen.exe
Resource
win11-20250313-en
General
-
Target
LockBit-Black-Builder-main/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 (322) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
-
Deletes itself 1 IoCs
pid Process 904 EFEA.tmp -
Executes dropped EXE 1 IoCs
pid Process 904 EFEA.tmp -
Loads dropped DLL 1 IoCs
pid Process 2988 LB3.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 C:\$Recycle.Bin\S-1-5-21-677481364-2238709445-1347953534-1000\desktop.ini LB3.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-677481364-2238709445-1347953534-1000\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-1-5-21-677481364-2238709445-1347953534-1000\Control Panel\Desktop\WallPaper = "C:\\ProgramData\\ZImkTWSLZ.bmp" LB3.exe Set value (str) \REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\ZImkTWSLZ.bmp" LB3.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 904 EFEA.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 EFEA.tmp -
Modifies Control Panel 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Control Panel\Desktop LB3.exe Set value (str) \REGISTRY\USER\S-1-5-21-677481364-2238709445-1347953534-1000\Control Panel\Desktop\WallpaperStyle = "10" LB3.exe -
Modifies registry class 5 IoCs
description ioc Process 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 Key created \REGISTRY\MACHINE\SOFTWARE\Classes\ZImkTWSLZ LB3.exe -
Suspicious behavior: EnumeratesProcesses 14 IoCs
pid Process 2988 LB3.exe 2988 LB3.exe 2988 LB3.exe 2988 LB3.exe 2988 LB3.exe 2988 LB3.exe 2988 LB3.exe 2988 LB3.exe 2988 LB3.exe 2988 LB3.exe 2988 LB3.exe 2988 LB3.exe 2988 LB3.exe 2988 LB3.exe -
Suspicious behavior: RenamesItself 26 IoCs
pid Process 904 EFEA.tmp 904 EFEA.tmp 904 EFEA.tmp 904 EFEA.tmp 904 EFEA.tmp 904 EFEA.tmp 904 EFEA.tmp 904 EFEA.tmp 904 EFEA.tmp 904 EFEA.tmp 904 EFEA.tmp 904 EFEA.tmp 904 EFEA.tmp 904 EFEA.tmp 904 EFEA.tmp 904 EFEA.tmp 904 EFEA.tmp 904 EFEA.tmp 904 EFEA.tmp 904 EFEA.tmp 904 EFEA.tmp 904 EFEA.tmp 904 EFEA.tmp 904 EFEA.tmp 904 EFEA.tmp 904 EFEA.tmp -
Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeAssignPrimaryTokenPrivilege 2988 LB3.exe Token: SeBackupPrivilege 2988 LB3.exe Token: SeDebugPrivilege 2988 LB3.exe Token: 36 2988 LB3.exe Token: SeImpersonatePrivilege 2988 LB3.exe Token: SeIncBasePriorityPrivilege 2988 LB3.exe Token: SeIncreaseQuotaPrivilege 2988 LB3.exe Token: 33 2988 LB3.exe Token: SeManageVolumePrivilege 2988 LB3.exe Token: SeProfSingleProcessPrivilege 2988 LB3.exe Token: SeRestorePrivilege 2988 LB3.exe Token: SeSecurityPrivilege 2988 LB3.exe Token: SeSystemProfilePrivilege 2988 LB3.exe Token: SeTakeOwnershipPrivilege 2988 LB3.exe Token: SeShutdownPrivilege 2988 LB3.exe Token: SeDebugPrivilege 2988 LB3.exe Token: SeBackupPrivilege 2988 LB3.exe Token: SeBackupPrivilege 2988 LB3.exe Token: SeSecurityPrivilege 2988 LB3.exe Token: SeSecurityPrivilege 2988 LB3.exe Token: SeBackupPrivilege 2988 LB3.exe Token: SeBackupPrivilege 2988 LB3.exe Token: SeSecurityPrivilege 2988 LB3.exe Token: SeSecurityPrivilege 2988 LB3.exe Token: SeBackupPrivilege 2988 LB3.exe Token: SeBackupPrivilege 2988 LB3.exe Token: SeSecurityPrivilege 2988 LB3.exe Token: SeSecurityPrivilege 2988 LB3.exe Token: SeBackupPrivilege 2988 LB3.exe Token: SeBackupPrivilege 2988 LB3.exe Token: SeSecurityPrivilege 2988 LB3.exe Token: SeSecurityPrivilege 2988 LB3.exe Token: SeBackupPrivilege 2988 LB3.exe Token: SeBackupPrivilege 2988 LB3.exe Token: SeSecurityPrivilege 2988 LB3.exe Token: SeSecurityPrivilege 2988 LB3.exe Token: SeBackupPrivilege 2988 LB3.exe Token: SeBackupPrivilege 2988 LB3.exe Token: SeSecurityPrivilege 2988 LB3.exe Token: SeSecurityPrivilege 2988 LB3.exe Token: SeBackupPrivilege 2988 LB3.exe Token: SeBackupPrivilege 2988 LB3.exe Token: SeSecurityPrivilege 2988 LB3.exe Token: SeSecurityPrivilege 2988 LB3.exe Token: SeBackupPrivilege 2988 LB3.exe Token: SeBackupPrivilege 2988 LB3.exe Token: SeSecurityPrivilege 2988 LB3.exe Token: SeSecurityPrivilege 2988 LB3.exe Token: SeBackupPrivilege 2988 LB3.exe Token: SeBackupPrivilege 2988 LB3.exe Token: SeSecurityPrivilege 2988 LB3.exe Token: SeSecurityPrivilege 2988 LB3.exe Token: SeBackupPrivilege 2988 LB3.exe Token: SeBackupPrivilege 2988 LB3.exe Token: SeSecurityPrivilege 2988 LB3.exe Token: SeSecurityPrivilege 2988 LB3.exe Token: SeBackupPrivilege 2988 LB3.exe Token: SeBackupPrivilege 2988 LB3.exe Token: SeSecurityPrivilege 2988 LB3.exe Token: SeSecurityPrivilege 2988 LB3.exe Token: SeBackupPrivilege 2988 LB3.exe Token: SeBackupPrivilege 2988 LB3.exe Token: SeSecurityPrivilege 2988 LB3.exe Token: SeSecurityPrivilege 2988 LB3.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2988 wrote to memory of 904 2988 LB3.exe 33 PID 2988 wrote to memory of 904 2988 LB3.exe 33 PID 2988 wrote to memory of 904 2988 LB3.exe 33 PID 2988 wrote to memory of 904 2988 LB3.exe 33 PID 2988 wrote to memory of 904 2988 LB3.exe 33 PID 904 wrote to memory of 2272 904 EFEA.tmp 34 PID 904 wrote to memory of 2272 904 EFEA.tmp 34 PID 904 wrote to memory of 2272 904 EFEA.tmp 34 PID 904 wrote to memory of 2272 904 EFEA.tmp 34
Processes
-
C:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit-Black-Builder-main\LockBit30\Build\LB3.exeC:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit-Black-Builder-main\LockBit30\Build\LB3.exe bcdedit /set shutdown /r /f /t 21⤵
- 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:2988 -
C:\ProgramData\EFEA.tmp"C:\ProgramData\EFEA.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:904 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\EFEA.tmp >> NUL3⤵
- System Location Discovery: System Language Discovery
PID:2272
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-
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x14c1⤵PID:2956
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
129B
MD568c7a8e83c7311e55b156e6a62af2041
SHA1ed1635ee5f8fabbca3cb47b5e4d630b8b8f44339
SHA256df567134f4fb457aea955039075744779c5261c03d9384c0b77aa7ae02c72b85
SHA51280212328505a0d372d0634f25a6960775425d1810ae1459a74af92bcc5b9a58a9d54b5a7015b5123e152ab5cc83014cbb29fbce16dbd355785b39a77d5fdb0f8
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C:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit-Black-Builder-main\LockBit30\Build\DDDDDDD
Filesize153KB
MD566910dda449a076c309d2885f15fb861
SHA1ea43ef985278605eddcbddc0c511a2a83c291b05
SHA256a0d8ac1a8e87091f999d2ded6de6362467a2cfb802a1c055a78f43387049b492
SHA5120eeba42b29ae61a4b3ddcdb0c8f2c92a39e3bded21408903e71a55d658c7f0521031d5ca7bcf0c3b319488b0452b4244bf82a3d3e5a832dc1a9e24cb58e942fe
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Filesize
6KB
MD5d23ad0c11afd370269df1dbe234b2c88
SHA1f6906228cc89631b6366c830136a178481b1a8b2
SHA256e0c9737b8aa2a290fbb87e3431caac045137f29e7223850f3d37d969643d2fea
SHA512f117765b90ea5d45e47e668f434ab548d9df8610be6016b142affe78ee2fa44ceaafe916b2afb7963b3a342292ed06b8e5d91950ad5188cc15369f95e7a6d914
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Filesize
129B
MD560d9b282a6865f108aeaa85c096b3a6b
SHA141a16d184e6cff34378d990337355b762ad1aa09
SHA2561796cf96a021ae12bd28dcefedb09ed4b74ade6b588e372065ad45503d0890a1
SHA512efdb1636b70fdadd335980917dc528fd44c423e1b4ba6918d6ade14b112daf28d3d132f99f807eff96d426421a273bd6dba80c0a9f903200bfa702f48bc3a7fe
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Filesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf