Analysis
- max time kernel
147s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
04/04/2024, 10:23
General
- Target lxdriver_setup.exe
- Size 2.9MB
- Sample240404-mesnmsch97
- SHA256 8cc8785cff5971bb2f042e978026723515ee3f1d7036682a8d34ad715d82eef3
Malware Config
Extracted
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stealc
-
http://185.172.128.209
-
url_path
/3cd2b41cbde8fc9c.php
Signatures
- Detect ZGRat V1 3 IoCs
- Stealc
Stealc is an infostealer written in C++.
- ZGRat
ZGRat is remote access trojan written in C#.
- Downloads MZ/PE file
- Checks computer location settings 2 TTPs 5 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 4 IoCs
- Loads dropped DLL 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.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Adds Run key to start application 2 TTPs 1 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 2 IoCs
- Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Runs ping.exe 1 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 29 IoCs
- Suspicious behavior: RenamesItself 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of FindShellTrayWindow 7 IoCs
- Suspicious use of SendNotifyMessage 7 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 23 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\lxdriver_setup.exe"C:\Users\Admin\AppData\Local\Temp\lxdriver_setup.exe"1⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
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C:\Users\Admin\AppData\Local\Temp\accepted.exe"C:\Users\Admin\AppData\Local\Temp\accepted.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\u138.0.exe"C:\Users\Admin\AppData\Local\Temp\u138.0.exe"3⤵
- Checks computer location settings
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\AKEGDAKEHJ.exe"4⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\AKEGDAKEHJ.exe"C:\Users\Admin\AppData\Local\Temp\AKEGDAKEHJ.exe"5⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C ping 2.2.2.2 -n 1 -w 3000 > Nul & Del C:\Users\Admin\AppData\Local\Temp\AKEGDAKEHJ.exe6⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\PING.EXEping 2.2.2.2 -n 1 -w 30007⤵
- Runs ping.exe
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-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4916 -s 23444⤵
- Program crash
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-
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C:\Users\Admin\AppData\Local\Temp\u138.1.exe"C:\Users\Admin\AppData\Local\Temp\u138.1.exe"3⤵
- Checks computer location settings
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe"C:\Users\Admin\AppData\Local\Temp\iolo\dm\SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe" /eieci=11A12794-499E-4FA0-A281-A9A9AA8B2685 /eipi=5488CB36-BE62-4606-B07B-2EE938868BD14⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1412 -s 11443⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1412 -ip 14121⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 4916 -ip 49161⤵
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Unsecured Credentials
5Credentials In Files
4Credentials in Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
Are.docx
mozglue.dll
nss3.dll
AKEGDAKEHJ.exe
accepted.exe
u138.0.exe
u138.1.exe
memory/1412-61-0x0000000000400000-0x0000000002B83000-memory.dmp
memory/1412-126-0x0000000000400000-0x0000000002B83000-memory.dmp
memory/1412-26-0x0000000000400000-0x0000000002B83000-memory.dmp
memory/1412-24-0x0000000002D30000-0x0000000002E30000-memory.dmp
memory/1412-25-0x00000000046D0000-0x000000000473C000-memory.dmp
memory/2456-93-0x0000000000BA0000-0x0000000000BA1000-memory.dmp
memory/2456-156-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/2456-173-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/2456-174-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/3208-203-0x00000197F8500000-0x00000197F850A000-memory.dmp
memory/3208-210-0x00000197F8870000-0x00000197F8892000-memory.dmp
memory/3208-230-0x00000197DA180000-0x00000197DA190000-memory.dmp
memory/3208-228-0x00000197DA180000-0x00000197DA190000-memory.dmp
memory/3208-227-0x00000197DA180000-0x00000197DA190000-memory.dmp
memory/3208-218-0x00000197DA180000-0x00000197DA190000-memory.dmp
memory/3208-215-0x00007FF8019B0000-0x00007FF802471000-memory.dmp
memory/3208-212-0x00000197F8580000-0x00000197F859E000-memory.dmp
memory/3208-209-0x00000197F8510000-0x00000197F851C000-memory.dmp
memory/3208-208-0x00000197F85A0000-0x00000197F85F0000-memory.dmp
memory/3208-205-0x00000197F8A80000-0x00000197F8FA8000-memory.dmp
memory/3208-204-0x00000197F8530000-0x00000197F8552000-memory.dmp
memory/3208-202-0x00000197DA180000-0x00000197DA190000-memory.dmp
memory/3208-201-0x00000197DA180000-0x00000197DA190000-memory.dmp
memory/3208-200-0x00000197DA180000-0x00000197DA190000-memory.dmp
memory/3208-199-0x00000197F7600000-0x00000197F760E000-memory.dmp
memory/3208-198-0x00000197F7630000-0x00000197F7668000-memory.dmp
memory/3208-175-0x00007FF8019B0000-0x00007FF802471000-memory.dmp
memory/3208-176-0x00000197D4CC0000-0x00000197D85B8000-memory.dmp
memory/3208-197-0x00000197F7CF0000-0x00000197F7CF8000-memory.dmp
memory/3208-178-0x00000197F2E50000-0x00000197F2F60000-memory.dmp
memory/3208-179-0x00000197DA180000-0x00000197DA190000-memory.dmp
memory/3208-181-0x00000197DA1F0000-0x00000197DA1FC000-memory.dmp
memory/3208-180-0x00000197DA190000-0x00000197DA1A0000-memory.dmp
memory/3208-182-0x00000197DA1E0000-0x00000197DA1F4000-memory.dmp
memory/3208-183-0x00000197F2DB0000-0x00000197F2DD4000-memory.dmp
memory/3208-184-0x00000197F2DD0000-0x00000197F2DDA000-memory.dmp
memory/3208-186-0x00000197F30A0000-0x00000197F3152000-memory.dmp
memory/3208-185-0x00000197F2DF0000-0x00000197F2E1A000-memory.dmp
memory/3208-187-0x00000197F3150000-0x00000197F31CA000-memory.dmp
memory/3208-188-0x00000197F31D0000-0x00000197F3232000-memory.dmp
memory/3208-189-0x00000197F32B0000-0x00000197F3326000-memory.dmp
memory/3208-190-0x00000197DA160000-0x00000197DA16A000-memory.dmp
memory/3208-194-0x00000197F3330000-0x00000197F3630000-memory.dmp
memory/4264-20-0x0000000007A60000-0x0000000007A6A000-memory.dmp
memory/4264-2-0x0000000005BB0000-0x0000000006154000-memory.dmp
memory/4264-3-0x0000000005600000-0x0000000005692000-memory.dmp
memory/4264-4-0x00000000056A0000-0x000000000573C000-memory.dmp
memory/4264-1-0x0000000074B00000-0x00000000752B0000-memory.dmp
memory/4264-5-0x0000000005890000-0x00000000058A0000-memory.dmp
memory/4264-232-0x0000000005890000-0x00000000058A0000-memory.dmp
memory/4264-0-0x0000000000BA0000-0x0000000000BD4000-memory.dmp
memory/4264-6-0x0000000005870000-0x0000000005888000-memory.dmp
memory/4264-7-0x00000000062A0000-0x0000000006306000-memory.dmp
memory/4264-10-0x0000000007370000-0x000000000737A000-memory.dmp
memory/4264-11-0x00000000075E0000-0x0000000007630000-memory.dmp
memory/4264-23-0x0000000005890000-0x00000000058A0000-memory.dmp
memory/4264-13-0x0000000074B00000-0x00000000752B0000-memory.dmp
memory/4264-216-0x0000000005890000-0x00000000058A0000-memory.dmp
memory/4468-246-0x0000000000BA0000-0x0000000000BC0000-memory.dmp
memory/4468-252-0x0000000074B00000-0x00000000752B0000-memory.dmp
memory/4468-248-0x0000000005580000-0x0000000005590000-memory.dmp
memory/4468-247-0x0000000074B00000-0x00000000752B0000-memory.dmp
memory/4916-37-0x0000000002BE0000-0x0000000002C07000-memory.dmp
memory/4916-229-0x0000000000400000-0x0000000002B60000-memory.dmp
memory/4916-177-0x0000000000400000-0x0000000002B60000-memory.dmp
memory/4916-36-0x0000000002C20000-0x0000000002D20000-memory.dmp
memory/4916-157-0x0000000000400000-0x0000000002B60000-memory.dmp
memory/4916-129-0x0000000000400000-0x0000000002B60000-memory.dmp
memory/4916-245-0x0000000000400000-0x0000000002B60000-memory.dmp
memory/4916-39-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/4916-38-0x0000000000400000-0x0000000002B60000-memory.dmp
memory/4916-196-0x0000000002C20000-0x0000000002D20000-memory.dmp