| File name: | LB3.exe |
| Full analysis: | https://app.any.run/tasks/620aadc3-385b-41d0-b75a-9530f26fe055 |
| Verdict: | Malicious activity |
| Threats: | LockBit, a ransomware variant, encrypts data on infected machines, demanding a ransom payment for decryption. Used in targeted attacks, It's a significant risk to organizations. |
| Analysis date: | March 11, 2025, 13:37:43 |
| OS: | Windows 10 Professional (build: 19045, 64 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/vnd.microsoft.portable-executable |
| File info: | PE32 executable (GUI) Intel 80386, for MS Windows, 6 sections |
| MD5: | E832D7AD76845047C77A6A97D9109221 |
| SHA1: | D80AAA25A743B18AA5EDFE11BB3B6073CC91CD71 |
| SHA256: | 2ABF91E7D05A470B4C3304E61B409B9CDFE23BE073CF3CCBB4066A5502FF54D2 |
| SSDEEP: | 3072:VmhXodguLLDzaJ/A7z7zT73VD/O2e7t9/cfhhPSZAm8:pfza6z7zFleQhqZ |
MALICIOUS
Known privilege escalation attack
- dllhost.exe (PID: 7228)
[YARA] LockBit is detected
- LB3.exe (PID: 7280)
Actions looks like stealing of personal data
- LB3.exe (PID: 7280)
Renames files like ransomware
- LB3.exe (PID: 7280)
SUSPICIOUS
There is functionality for taking screenshot (YARA)
- LB3.exe (PID: 7280)
Write to the desktop.ini file (may be used to cloak folders)
- LB3.exe (PID: 7280)
INFO
Reads the computer name
- LB3.exe (PID: 2320)
- LB3.exe (PID: 7280)
Checks supported languages
- LB3.exe (PID: 2320)
- ShellExperienceHost.exe (PID: 7540)
- LB3.exe (PID: 7280)
Reads the machine GUID from the registry
- LB3.exe (PID: 2320)
Creates files or folders in the user directory
- LB3.exe (PID: 7280)
Manual execution by a user
- notepad.exe (PID: 920)
- notepad.exe (PID: 5512)
- notepad.exe (PID: 5756)
- notepad++.exe (PID: 7048)
- notepad.exe (PID: 8004)
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
TRiD
| .dll | | | Win32 Dynamic Link Library (generic) (38.3) |
|---|---|---|
| .exe | | | Win32 Executable (generic) (26.2) |
| .exe | | | Win16/32 Executable Delphi generic (12) |
| .exe | | | Generic Win/DOS Executable (11.6) |
| .exe | | | DOS Executable Generic (11.6) |
EXIF
EXE
| MachineType: | Intel 386 or later, and compatibles |
|---|---|
| TimeStamp: | 2022:09:13 23:30:57+00:00 |
| ImageFileCharacteristics: | Executable, 32-bit |
| PEType: | PE32 |
| LinkerVersion: | 14.12 |
| CodeSize: | 99328 |
| InitializedDataSize: | 50688 |
| UninitializedDataSize: | - |
| EntryPoint: | 0x1946f |
| OSVersion: | 5.1 |
| ImageVersion: | - |
| SubsystemVersion: | 5.1 |
| Subsystem: | Windows GUI |
Total processes
155
Monitored processes
16
Malicious processes
2
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 920 | "C:\WINDOWS\system32\NOTEPAD.EXE" C:\Users\admin\Desktop\trevZifxf.README.txt | C:\Windows\System32\notepad.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Notepad Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 2088 | "BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.1 | C:\Windows\System32\BackgroundTransferHost.exe | — | svchost.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Download/Upload Host Exit code: 1 Version: 10.0.19041.3636 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 2228 | "BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.1 | C:\Windows\System32\BackgroundTransferHost.exe | svchost.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Download/Upload Host Exit code: 1 Version: 10.0.19041.3636 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 2320 | "C:\Users\admin\Desktop\LB3.exe" -k LocalServiceNetworkRestricted | C:\Users\admin\Desktop\LB3.exe | — | explorer.exe | |||||||||||
User: admin Integrity Level: MEDIUM Exit code: 0 Modules
| |||||||||||||||
| 4980 | "BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.1 | C:\Windows\System32\BackgroundTransferHost.exe | — | svchost.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Download/Upload Host Exit code: 1 Version: 10.0.19041.3636 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 5512 | "C:\WINDOWS\system32\NOTEPAD.EXE" C:\Users\admin\Desktop\trevZifxf.README.txt | C:\Windows\System32\notepad.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Notepad Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 5756 | "C:\WINDOWS\system32\NOTEPAD.EXE" C:\Users\admin\Desktop\trevZifxf.README.txt | C:\Windows\System32\notepad.exe | — | explorer.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Notepad Exit code: 0 Version: 10.0.19041.1 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 6972 | "BackgroundTransferHost.exe" -ServerName:BackgroundTransferHost.1 | C:\Windows\System32\BackgroundTransferHost.exe | — | svchost.exe | |||||||||||
User: admin Company: Microsoft Corporation Integrity Level: MEDIUM Description: Download/Upload Host Exit code: 1 Version: 10.0.19041.3636 (WinBuild.160101.0800) Modules
| |||||||||||||||
| 7048 | "C:\Program Files\Notepad++\notepad++.exe" "C:\Users\admin\Desktop\trevZifxf.README.txt" | C:\Program Files\Notepad++\notepad++.exe | — | explorer.exe | |||||||||||
User: admin Company: Don HO don.h@free.fr Integrity Level: MEDIUM Description: Notepad++ : a free (GNU) source code editor Exit code: 0 Version: 7.91 Modules
| |||||||||||||||
| 7228 | C:\WINDOWS\SysWOW64\DllHost.exe /Processid:{3E5FC7F9-9A51-4367-9063-A120244FBEC7} | C:\Windows\SysWOW64\dllhost.exe | svchost.exe | ||||||||||||
User: admin Company: Microsoft Corporation Integrity Level: HIGH Description: COM Surrogate Exit code: 0 Version: 10.0.19041.3636 (WinBuild.160101.0800) Modules
| |||||||||||||||
Total events
4 044
Read events
4 026
Write events
18
Delete events
0
Modification events
| (PID) Process: | (7228) dllhost.exe | Key: | HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer |
| Operation: | write | Name: | SlowContextMenuEntries |
Value: 6024B221EA3A6910A2DC08002B30309D0A010000BD0E0C47735D584D9CEDE91E22E23282770100000114020000000000C0000000000000468D0000006078A409B011A54DAFA526D86198A780390100009AD298B2EDA6DE11BA8CA68E55D895936E000000 | |||
| (PID) Process: | (7540) ShellExperienceHost.exe | Key: | \REGISTRY\A\{3a7da18d-90a8-2c43-d7c5-6c21ddfe74ff}\LocalState |
| Operation: | write | Name: | PeekBadges |
Value: 5B005D000000CD34B8C98A92DB01 | |||
| (PID) Process: | (7540) ShellExperienceHost.exe | Key: | \REGISTRY\A\{3a7da18d-90a8-2c43-d7c5-6c21ddfe74ff}\LocalState |
| Operation: | write | Name: | PeekBadges |
Value: 5B005D000000CF99BAC98A92DB01 | |||
| (PID) Process: | (2088) BackgroundTransferHost.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.windows.contentdeliverymanager_cw5n1h2txyewy\Internet Settings\Cache\Content |
| Operation: | write | Name: | CachePrefix |
Value: | |||
| (PID) Process: | (2088) BackgroundTransferHost.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.windows.contentdeliverymanager_cw5n1h2txyewy\Internet Settings\Cache\History |
| Operation: | write | Name: | CachePrefix |
Value: Visited: | |||
| (PID) Process: | (2088) BackgroundTransferHost.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.windows.contentdeliverymanager_cw5n1h2txyewy\Internet Settings\Cache\Cookies |
| Operation: | write | Name: | CachePrefix |
Value: Cookie: | |||
| (PID) Process: | (2228) BackgroundTransferHost.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.windows.contentdeliverymanager_cw5n1h2txyewy\Internet Settings\Cache\Content |
| Operation: | write | Name: | CachePrefix |
Value: | |||
| (PID) Process: | (2228) BackgroundTransferHost.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.windows.contentdeliverymanager_cw5n1h2txyewy\Internet Settings\Cache\Cookies |
| Operation: | write | Name: | CachePrefix |
Value: Cookie: | |||
| (PID) Process: | (4980) BackgroundTransferHost.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.windows.contentdeliverymanager_cw5n1h2txyewy\Internet Settings\Cache\Content |
| Operation: | write | Name: | CachePrefix |
Value: | |||
| (PID) Process: | (4980) BackgroundTransferHost.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppContainer\Storage\microsoft.windows.contentdeliverymanager_cw5n1h2txyewy\Internet Settings\Cache\Cookies |
| Operation: | write | Name: | CachePrefix |
Value: Cookie: | |||
Executable files
8
Suspicious files
792
Text files
899
Unknown types
0
Dropped files
PID | Process | Filename | Type | |
|---|---|---|---|---|
| 7280 | LB3.exe | C:\$Recycle.Bin\S-1-5-18\desktop.ini | — | |
MD5:— | SHA256:— | |||
| 7280 | LB3.exe | C:\$Recycle.Bin\S-1-5-18\AAAAAAAAAAA | — | |
MD5:— | SHA256:— | |||
| 7280 | LB3.exe | C:\$Recycle.Bin\S-1-5-18\CCCCCCCCCCC | — | |
MD5:— | SHA256:— | |||
| 7280 | LB3.exe | C:\$Recycle.Bin\S-1-5-18\DDDDDDDDDDD | — | |
MD5:— | SHA256:— | |||
| 7280 | LB3.exe | C:\$Recycle.Bin\S-1-5-18\EEEEEEEEEEE | — | |
MD5:— | SHA256:— | |||
| 7280 | LB3.exe | C:\$Recycle.Bin\S-1-5-18\FFFFFFFFFFF | — | |
MD5:— | SHA256:— | |||
| 7280 | LB3.exe | C:\$Recycle.Bin\S-1-5-18\GGGGGGGGGGG | — | |
MD5:— | SHA256:— | |||
| 7280 | LB3.exe | C:\$Recycle.Bin\S-1-5-18\HHHHHHHHHHH | — | |
MD5:— | SHA256:— | |||
| 7280 | LB3.exe | C:\$Recycle.Bin\S-1-5-18\IIIIIIIIIII | — | |
MD5:— | SHA256:— | |||
| 7280 | LB3.exe | C:\$Recycle.Bin\S-1-5-18\JJJJJJJJJJJ | — | |
MD5:— | SHA256:— | |||
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
5
TCP/UDP connections
24
DNS requests
13
Threats
0
HTTP requests
PID | Process | Method | HTTP Code | IP | URL | CN | Type | Size | Reputation |
|---|---|---|---|---|---|---|---|---|---|
7824 | backgroundTaskHost.exe | GET | 200 | 2.17.190.73:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAUZZSZEml49Gjh0j13P68w%3D | unknown | — | — | whitelisted |
6544 | svchost.exe | GET | 200 | 2.17.190.73:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D | unknown | — | — | whitelisted |
2228 | BackgroundTransferHost.exe | GET | 200 | 2.17.190.73:80 | http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D | unknown | — | — | unknown |
4300 | SIHClient.exe | GET | 200 | 23.215.121.133:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl | unknown | — | — | unknown |
4300 | SIHClient.exe | GET | 200 | 23.215.121.133:80 | http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl | unknown | — | — | whitelisted |
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
— | — | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
4 | System | 192.168.100.255:137 | — | — | — | unknown |
2104 | svchost.exe | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | unknown |
4 | System | 192.168.100.255:138 | — | — | — | unknown |
5176 | RUXIMICS.exe | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | unknown |
3216 | svchost.exe | 40.113.103.199:443 | client.wns.windows.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
6544 | svchost.exe | 40.126.32.138:443 | login.live.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | whitelisted |
6544 | svchost.exe | 2.17.190.73:80 | ocsp.digicert.com | AKAMAI-AS | DE | unknown |
2112 | svchost.exe | 20.73.194.208:443 | settings-win.data.microsoft.com | MICROSOFT-CORP-MSN-AS-BLOCK | NL | unknown |
7824 | backgroundTaskHost.exe | 20.223.36.55:443 | arc.msn.com | MICROSOFT-CORP-MSN-AS-BLOCK | IE | unknown |
DNS requests
Domain | IP | Reputation |
|---|---|---|
google.com |
| unknown |
client.wns.windows.com |
| unknown |
login.live.com |
| unknown |
ocsp.digicert.com |
| unknown |
settings-win.data.microsoft.com |
| unknown |
arc.msn.com |
| unknown |
www.bing.com |
| whitelisted |
slscr.update.microsoft.com |
| unknown |
www.microsoft.com |
| whitelisted |
fe3cr.delivery.mp.microsoft.com |
| unknown |