Analysis
- max time kernel
104s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
21/08/2024, 01:22
General
- Target 2c85d7c4dd069fff494edd19387d56e54a52f6ef1b557f3d775f999410eb5a4d.exe
- Size 183KB
- Sample240821-brcbmsxakm
- SHA256 2c85d7c4dd069fff494edd19387d56e54a52f6ef1b557f3d775f999410eb5a4d
Malware Config
Extracted
-
C:\MNYHU2Jh1.README.txt
- ~~~ LockBit 5.02 the world's fastest ransomware since 2024~~~ >>>> Your data are stolen and encrypted The data will be published on TOR website if you do not pay the ransom BTC amount 0.02 BTC amount 0 , deleted all files from you PC, and post all infirmation to public. where send BTC: bc1qm7sg7p2jkgthv7pkjy856sh9lr5x3yrpzv099d Time just 12 hr, after everythink will be removed You can buy them on the exchange or at an ATM https://coinatmradar.com. You can find the addresses here buy with credit or debet card online https://www.moonpay.com/buy. After that, send a request with confirmation to e-mail , faster way! [email protected] or [email protected] If both email no answer, you need faster answer and unlock please use TOX You can contact us using Tox messenger without registration and SMS https://tox.chat/download.html. Using Tox messenger, we will never know your real name, it means your privacy is guaranteed. If you want to contact us, tox. Tox ID LockBitSupp: 47C90F99E92AC0ECEAD8C2BD15B21866EBC1195B6E2B0412CE3658E21B696843FF4A8D144B24
-
https://coinatmradar.com
-
https://www.moonpay.com/buy
-
https://tox.chat/download.html
Signatures
- Lockbit
Ransomware family with multiple variants released since late 2019.
- Rule to detect Lockbit 3.0 ransomware Windows payload 1 IoCs
- Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
- Renames multiple (611) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
- Downloads MZ/PE file
- Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 2 IoCs
- Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Drops desktop.ini file(s) 2 IoCs
- Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Drops file in System32 directory 4 IoCs
- Sets desktop wallpaper using registry 2 TTPs 2 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
- Enumerates system info in registry 2 TTPs 3 IoCs
- Modifies Control Panel 2 IoCs
- Modifies registry class 5 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: RenamesItself 2 IoCs
- Suspicious use of AdjustPrivilegeToken 64 IoCs
- Suspicious use of SetWindowsHookEx 13 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2c85d7c4dd069fff494edd19387d56e54a52f6ef1b557f3d775f999410eb5a4d.exe"C:\Users\Admin\AppData\Local\Temp\2c85d7c4dd069fff494edd19387d56e54a52f6ef1b557f3d775f999410eb5a4d.exe"1⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
-
C:\Users\Admin\AppData\Local\Temp\LB3.exe"C:\Users\Admin\AppData\Local\Temp\LB3.exe"2⤵
- Executes dropped EXE
- 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 behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122883⤵
- Drops file in System32 directory
-
-
C:\ProgramData\4051.tmp"C:\ProgramData\4051.tmp"3⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\4051.tmp >> NUL4⤵
- System Location Discovery: System Language Discovery
-
-
-
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc1⤵
-
C:\Windows\system32\printfilterpipelinesvc.exeC:\Windows\system32\printfilterpipelinesvc.exe -Embedding1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
-
C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE/insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{A00CC039-136C-44C9-84D8-9437C3BD8189}.xps" 1336867697030300002⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
5Credentials In Files
4Credentials in Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
YYYYYYYYYYY
MNYHU2Jh1.README.txt
4051.tmp
DDDDDDD
LB3.exe
{C6D9FAC6-FEA5-473F-A3EC-F1C18FDD93AB}
Open Notebook.onetoc2
DDDDDDDDDDD
memory/2328-8-0x00000000753BE000-0x00000000753BF000-memory.dmp
memory/2328-9-0x00000000753B0000-0x0000000075B60000-memory.dmp
memory/2328-13-0x0000000006DF0000-0x0000000006DFA000-memory.dmp
memory/2328-15-0x0000000007440000-0x0000000007490000-memory.dmp
memory/2328-0-0x00000000753BE000-0x00000000753BF000-memory.dmp
memory/2328-1-0x0000000000760000-0x0000000000794000-memory.dmp
memory/2328-2-0x00000000057E0000-0x0000000005D84000-memory.dmp
memory/2328-3-0x0000000005230000-0x00000000052C2000-memory.dmp
memory/2328-7-0x0000000005E00000-0x0000000005E66000-memory.dmp
memory/2328-6-0x00000000051F0000-0x0000000005208000-memory.dmp
memory/2328-5-0x00000000753B0000-0x0000000075B60000-memory.dmp
memory/2328-890-0x00000000753B0000-0x0000000075B60000-memory.dmp
memory/2328-4-0x00000000052D0000-0x000000000536C000-memory.dmp
memory/2548-2964-0x00000000032C0000-0x00000000032D0000-memory.dmp
memory/2548-2965-0x00000000032C0000-0x00000000032D0000-memory.dmp
memory/2548-2963-0x00000000032C0000-0x00000000032D0000-memory.dmp
memory/2548-22-0x00000000032C0000-0x00000000032D0000-memory.dmp
memory/2548-23-0x00000000032C0000-0x00000000032D0000-memory.dmp
memory/2548-24-0x00000000032C0000-0x00000000032D0000-memory.dmp
memory/3828-2977-0x00007FFE35090000-0x00007FFE350A0000-memory.dmp
memory/3828-2979-0x00007FFE35090000-0x00007FFE350A0000-memory.dmp
memory/3828-2982-0x00007FFE35090000-0x00007FFE350A0000-memory.dmp
memory/3828-2981-0x00007FFE35090000-0x00007FFE350A0000-memory.dmp
memory/3828-2978-0x00007FFE35090000-0x00007FFE350A0000-memory.dmp
memory/3828-3014-0x00007FFE32B70000-0x00007FFE32B80000-memory.dmp
memory/3828-3015-0x00007FFE32B70000-0x00007FFE32B80000-memory.dmp