Resubmissions
28-07-2024 16:38
240728-t5tryssgmm 1007-07-2024 14:07
240707-rfgd8atekm 1007-07-2024 14:07
240707-re689awdpe 1013-09-2022 17:54
220913-wg1lpsgbg7 10Analysis
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max time kernel
1661s -
max time network
1171s -
platform
windows10-2004_x64 -
resource
win10v2004-20240704-en -
resource tags
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submitted
07-07-2024 14:07
General
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Target
RansomwareSamples/LockBit_14_02_2021_146KB.exe
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Size
146KB
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MD5
69bec32d50744293e85606a5e8f80425
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SHA1
101b90ac7e0c2a8b570686c13dfa0e161ddd00e0
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SHA256
95739e350d7f2aca2c609768ee72ad67fcf05efca5c7ad8df3027c82b9c454cf
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SHA512
e01f976fcbfa67cfd6e97855d07350a27b67fcc825d4e813ac9d2f4e8f464bb4f8bbbbe58a26bc27e78fa15db0ee5271e8f041dd72f036c11964eb1c591b438f
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SSDEEP
3072:V6ZkRGjkBrmKmY99UpkD1/34bIpVSrtLmqc2LVMMqqD/h2LuTeONA5tIHVcH:IS9rLPPUpa3VVEtLXcCqqD/hOQnaMcH
Malware Config
Extracted
C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.27\Restore-My-Files.txt
lockbit
http://lockbit-decryptor.top/?BC76D224712A7481DEF40FA085EA7F59
http://lockbitks2tvnmwk.onion/?BC76D224712A7481DEF40FA085EA7F59
Extracted
C:\Users\Admin\Desktop\LockBit-note.hta
http://lockbit-decryptor.top/?BC76D224712A7481DEF40FA085EA7F59
http://lockbitks2tvnmwk.onion/?BC76D224712A7481DEF40FA085EA7F59
Signatures
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Lockbit
Ransomware family with multiple variants released since late 2019.
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Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
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Renames multiple (6418) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Deletes backup catalog 3 TTPs 1 IoCs
Uses wbadmin.exe to inhibit system recovery.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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Adds Run key to start application 2 TTPs 2 IoCs
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Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
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Sets desktop wallpaper using registry 2 TTPs 1 IoCs
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Suspicious use of NtSetInformationThreadHideFromDebugger 64 IoCs
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Drops file in Program Files directory 64 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
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Checks SCSI registry key(s) 3 TTPs 4 IoCs
SCSI information is often read in order to detect sandboxing environments.
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Interacts with shadow copies 3 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
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Modifies Control Panel 2 IoCs
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Modifies registry class 1 IoCs
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Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
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Suspicious use of AdjustPrivilegeToken 50 IoCs
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Suspicious use of WriteProcessMemory 24 IoCs
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Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
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Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\RansomwareSamples\LockBit_14_02_2021_146KB.exe"C:\Users\Admin\AppData\Local\Temp\RansomwareSamples\LockBit_14_02_2021_146KB.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Enumerates connected drives
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Program Files directory
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c vssadmin delete shadows /all /quiet & wmic shadowcopy delete & bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no & wbadmin delete catalog -quiet2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete3⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet3⤵
- Deletes backup catalog
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\LockBit-note.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}2⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2776 -s 16763⤵
- Program crash
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C ping 127.0.0.7 -n 3 > Nul & fsutil file setZeroData offset=0 length=524288 "C:\Users\Admin\AppData\Local\Temp\RansomwareSamples\LockBit_14_02_2021_146KB.exe" & Del /f /q "C:\Users\Admin\AppData\Local\Temp\RansomwareSamples\LockBit_14_02_2021_146KB.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\PING.EXEping 127.0.0.7 -n 33⤵
- Runs ping.exe
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C:\Windows\SysWOW64\fsutil.exefsutil file setZeroData offset=0 length=524288 "C:\Users\Admin\AppData\Local\Temp\RansomwareSamples\LockBit_14_02_2021_146KB.exe"3⤵
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2776 -ip 27761⤵
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Direct Volume Access
1Indicator Removal
3File Deletion
3Modify Registry
2Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD5799161fca9a3167f25cc591922e9d4bf
SHA1578a60791842ac09f171a72b6cc2997b8307b4a1
SHA2566ebba29a420264342daf19a0d5d1dd36ecd56f5082b1d74d95733bc210ec75df
SHA5120b23abb807fc49f995a0d3a8bce125770ad6b2cb9395e2d5317bdce394fddd165e1779c7434c91e479996f6caad88e6179bb13ac406aacc236b882cbc0381bb6
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Filesize
17KB
MD51ab66d44b4dfadff2a914174e24c8cf2
SHA199214f760f492208095d8091d4b874df871858e5
SHA256fc17dec8009c6af6add2a03807cc1ad8b08c2f34a0bff4922ecce9cba85de62e
SHA512fbb46563c2b84e1e36980a818ddae1341f899e6d6159216c45b9be37da558b633b4f1243d0f9665434f31dd5b7a2e5d062a50506b7a5be57897ede5c85077e88