Analysis
- max time kernel
133s - max time network
156s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
03/04/2024, 19:44
General
- Target b851e0dbee4a0e26a38ec6e54c0ae716c9c1a6be78a84c053cbc1eda5030ef11.exe
- Size 430KB
- Sample240403-yf3qsabb83
- SHA256 b851e0dbee4a0e26a38ec6e54c0ae716c9c1a6be78a84c053cbc1eda5030ef11
Malware Config
Extracted
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stealc
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http://185.172.128.209
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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 4 IoCs
Looks up country code configured in the registry, likely geofence.
- 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 30 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
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C:\Users\Admin\AppData\Local\Temp\b851e0dbee4a0e26a38ec6e54c0ae716c9c1a6be78a84c053cbc1eda5030ef11.exe"C:\Users\Admin\AppData\Local\Temp\b851e0dbee4a0e26a38ec6e54c0ae716c9c1a6be78a84c053cbc1eda5030ef11.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\u21k.0.exe"C:\Users\Admin\AppData\Local\Temp\u21k.0.exe"2⤵
- 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\IIIJECAEGD.exe"3⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\IIIJECAEGD.exe"C:\Users\Admin\AppData\Local\Temp\IIIJECAEGD.exe"4⤵
- 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\IIIJECAEGD.exe5⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\PING.EXEping 2.2.2.2 -n 1 -w 30006⤵
- Runs ping.exe
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1816 -s 21483⤵
- Program crash
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C:\Users\Admin\AppData\Local\Temp\u21k.1.exe"C:\Users\Admin\AppData\Local\Temp\u21k.1.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Checks SCSI registry key(s)
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
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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
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2648 -s 15122⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2648 -ip 26481⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 1816 -ip 18161⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Are.docx
mozglue.dll
nss3.dll
IIIJECAEGD.exe
u21k.0.exe
u21k.1.exe
memory/596-145-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/596-26-0x0000000002570000-0x0000000002571000-memory.dmp
memory/596-134-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/1416-158-0x0000000004B40000-0x0000000004B50000-memory.dmp
memory/1416-164-0x0000000072560000-0x0000000072D10000-memory.dmp
memory/1416-156-0x0000000072560000-0x0000000072D10000-memory.dmp
memory/1416-155-0x0000000000090000-0x00000000000B0000-memory.dmp
memory/1816-15-0x0000000000400000-0x0000000000869000-memory.dmp
memory/1816-132-0x0000000000400000-0x0000000000869000-memory.dmp
memory/1816-27-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/1816-14-0x0000000002380000-0x00000000023A7000-memory.dmp
memory/1816-153-0x0000000000400000-0x0000000000869000-memory.dmp
memory/1816-13-0x0000000000C30000-0x0000000000D30000-memory.dmp
memory/2648-75-0x0000000000B40000-0x0000000000BAC000-memory.dmp
memory/2648-74-0x0000000000400000-0x0000000000889000-memory.dmp
memory/2648-1-0x0000000000BB0000-0x0000000000CB0000-memory.dmp
memory/2648-3-0x0000000000400000-0x0000000000889000-memory.dmp
memory/2648-2-0x0000000000B40000-0x0000000000BAC000-memory.dmp
memory/4612-165-0x000001826F4F0000-0x000001826F504000-memory.dmp
memory/4612-181-0x00000182755C0000-0x00000182755C8000-memory.dmp
memory/4612-162-0x000001826F4E0000-0x000001826F4F0000-memory.dmp
memory/4612-154-0x0000018269730000-0x000001826D028000-memory.dmp
memory/4612-149-0x00007FFEE8720000-0x00007FFEE91E1000-memory.dmp
memory/4612-163-0x000001826F510000-0x000001826F51C000-memory.dmp
memory/4612-166-0x0000018270660000-0x0000018270684000-memory.dmp
memory/4612-168-0x0000018270900000-0x000001827092A000-memory.dmp
memory/4612-169-0x0000018270930000-0x00000182709E2000-memory.dmp
memory/4612-172-0x0000018270B50000-0x0000018270BC6000-memory.dmp
memory/4612-171-0x0000018270A70000-0x0000018270AD2000-memory.dmp
memory/4612-170-0x00000182709E0000-0x0000018270A5A000-memory.dmp
memory/4612-167-0x0000018270690000-0x000001827069A000-memory.dmp
memory/4612-173-0x00000182706A0000-0x00000182706AA000-memory.dmp
memory/4612-177-0x0000018270BD0000-0x0000018270ED0000-memory.dmp
memory/4612-179-0x000001826F500000-0x000001826F510000-memory.dmp
memory/4612-182-0x000001826F500000-0x000001826F510000-memory.dmp
memory/4612-161-0x0000018270510000-0x0000018270620000-memory.dmp
memory/4612-184-0x0000018274ED0000-0x0000018274EDE000-memory.dmp
memory/4612-183-0x0000018274F00000-0x0000018274F38000-memory.dmp
memory/4612-180-0x000001826F500000-0x000001826F510000-memory.dmp
memory/4612-186-0x0000018275DE0000-0x0000018275E02000-memory.dmp
memory/4612-185-0x0000018276060000-0x000001827606A000-memory.dmp
memory/4612-187-0x00000182765A0000-0x0000018276AC8000-memory.dmp
memory/4612-192-0x0000018275E00000-0x0000018275E0C000-memory.dmp
memory/4612-191-0x0000018275E50000-0x0000018275EA0000-memory.dmp
memory/4612-190-0x000001826F500000-0x000001826F510000-memory.dmp
memory/4612-193-0x0000018275EA0000-0x0000018275EC2000-memory.dmp
memory/4612-194-0x0000018275ED0000-0x0000018275EEE000-memory.dmp
memory/4612-196-0x00007FFEE8720000-0x00007FFEE91E1000-memory.dmp
memory/4612-197-0x000001826F500000-0x000001826F510000-memory.dmp
memory/4612-198-0x000001826F500000-0x000001826F510000-memory.dmp
memory/4612-199-0x000001826F500000-0x000001826F510000-memory.dmp
memory/4612-200-0x000001826F500000-0x000001826F510000-memory.dmp
memory/4612-201-0x000001826F500000-0x000001826F510000-memory.dmp