Analysis
- max time kernel
126s - max time network
128s - platform
windows11-21h2_x64 - resource
win11-20240221-en - resource tags
- submitted
03/04/2024, 10:02
General
- Target 4b6587b1bf6e814096a570234ca0a2d7984c87ea42766f22fef3ce83ddd23414.exe
- Size 430KB
- Sample240403-l2ybzacd27
- SHA256 4b6587b1bf6e814096a570234ca0a2d7984c87ea42766f22fef3ce83ddd23414
Malware Config
Extracted
-
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
- Executes dropped EXE 3 IoCs
- Loads dropped DLL 2 IoCs
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- 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 21 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of FindShellTrayWindow 7 IoCs
- Suspicious use of SendNotifyMessage 7 IoCs
- Suspicious use of WriteProcessMemory 20 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\4b6587b1bf6e814096a570234ca0a2d7984c87ea42766f22fef3ce83ddd23414.exe"C:\Users\Admin\AppData\Local\Temp\4b6587b1bf6e814096a570234ca0a2d7984c87ea42766f22fef3ce83ddd23414.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\u1o0.0.exe"C:\Users\Admin\AppData\Local\Temp\u1o0.0.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\ECBGHCGCBK.exe"3⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\ECBGHCGCBK.exe"C:\Users\Admin\AppData\Local\Temp\ECBGHCGCBK.exe"4⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
-
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\ECBGHCGCBK.exe5⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\PING.EXEping 2.2.2.2 -n 1 -w 30006⤵
- Runs ping.exe
-
-
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4924 -s 25083⤵
- Program crash
-
-
-
C:\Users\Admin\AppData\Local\Temp\u1o0.1.exe"C:\Users\Admin\AppData\Local\Temp\u1o0.1.exe"2⤵
- 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-2EE938868BD13⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2160 -s 8602⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2160 -ip 21601⤵
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 4924 -ip 49241⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
Are.docx
mozglue.dll
nss3.dll
ECBGHCGCBK.exe
ioloDMLog.txt
u1o0.0.exe
u1o0.1.exe
memory/2128-135-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/2128-26-0x0000000002770000-0x0000000002771000-memory.dmp
memory/2128-123-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/2160-53-0x0000000000400000-0x0000000000889000-memory.dmp
memory/2160-1-0x0000000000BF0000-0x0000000000CF0000-memory.dmp
memory/2160-3-0x0000000000400000-0x0000000000889000-memory.dmp
memory/2160-2-0x0000000002750000-0x00000000027BC000-memory.dmp
memory/3732-147-0x000001EFF72F0000-0x000001EFF736A000-memory.dmp
memory/3732-161-0x000001EFFBD50000-0x000001EFFBD88000-memory.dmp
memory/3732-204-0x000001EFF72E0000-0x000001EFF72F0000-memory.dmp
memory/3732-136-0x00007FFBC2830000-0x00007FFBC32F2000-memory.dmp
memory/3732-137-0x000001EFF1410000-0x000001EFF4D08000-memory.dmp
memory/3732-138-0x000001EFF72E0000-0x000001EFF72F0000-memory.dmp
memory/3732-139-0x000001EFF7580000-0x000001EFF7690000-memory.dmp
memory/3732-140-0x000001EFF5180000-0x000001EFF5190000-memory.dmp
memory/3732-141-0x000001EFF69F0000-0x000001EFF69FC000-memory.dmp
memory/3732-142-0x000001EFF5190000-0x000001EFF51A4000-memory.dmp
memory/3732-143-0x000001EFF7240000-0x000001EFF7264000-memory.dmp
memory/3732-144-0x000001EFF7260000-0x000001EFF726A000-memory.dmp
memory/3732-146-0x000001EFF7690000-0x000001EFF7742000-memory.dmp
memory/3732-145-0x000001EFF7280000-0x000001EFF72AA000-memory.dmp
memory/3732-203-0x000001EFF72E0000-0x000001EFF72F0000-memory.dmp
memory/3732-148-0x000001EFF78A0000-0x000001EFF7902000-memory.dmp
memory/3732-149-0x000001EFF7980000-0x000001EFF79F6000-memory.dmp
memory/3732-150-0x000001EFF7270000-0x000001EFF727A000-memory.dmp
memory/3732-154-0x000001EFF7A00000-0x000001EFF7D00000-memory.dmp
memory/3732-157-0x000001EFF72E0000-0x000001EFF72F0000-memory.dmp
memory/3732-158-0x000001EFF72E0000-0x000001EFF72F0000-memory.dmp
memory/3732-159-0x000001EFF72E0000-0x000001EFF72F0000-memory.dmp
memory/3732-160-0x000001EFFB650000-0x000001EFFB658000-memory.dmp
memory/3732-202-0x000001EFF72E0000-0x000001EFF72F0000-memory.dmp
memory/3732-162-0x000001EFFBD20000-0x000001EFFBD2E000-memory.dmp
memory/3732-163-0x000001EFFBDD0000-0x000001EFFBDDA000-memory.dmp
memory/3732-164-0x000001EFFC6C0000-0x000001EFFC6E2000-memory.dmp
memory/3732-165-0x000001EFFCC10000-0x000001EFFD138000-memory.dmp
memory/3732-168-0x000001EFFC490000-0x000001EFFC4E0000-memory.dmp
memory/3732-169-0x000001EFFC420000-0x000001EFFC42C000-memory.dmp
memory/3732-178-0x000001EFFC4E0000-0x000001EFFC502000-memory.dmp
memory/3732-180-0x000001EFFC470000-0x000001EFFC48E000-memory.dmp
memory/3732-201-0x000001EFF72E0000-0x000001EFF72F0000-memory.dmp
memory/3732-200-0x00007FFBC2830000-0x00007FFBC32F2000-memory.dmp
memory/4924-13-0x0000000000BB0000-0x0000000000CB0000-memory.dmp
memory/4924-195-0x0000000000400000-0x0000000000866000-memory.dmp
memory/4924-14-0x00000000009B0000-0x00000000009D7000-memory.dmp
memory/4924-179-0x0000000000BB0000-0x0000000000CB0000-memory.dmp
memory/4924-122-0x0000000000400000-0x0000000000866000-memory.dmp
memory/4924-15-0x0000000000400000-0x0000000000866000-memory.dmp
memory/4924-31-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/5000-193-0x0000000000980000-0x00000000009A0000-memory.dmp
memory/5000-194-0x0000000071870000-0x0000000072021000-memory.dmp
memory/5000-196-0x0000000002EF0000-0x0000000002F00000-memory.dmp
memory/5000-199-0x0000000071870000-0x0000000072021000-memory.dmp