Analysis
- max time kernel
150s - max time network
161s - platform
windows11-21h2_x64 - resource
win11-20240221-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
- 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 25 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⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\u1eg.0.exe"C:\Users\Admin\AppData\Local\Temp\u1eg.0.exe"2⤵
- 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\CGDBGCBGID.exe"3⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\CGDBGCBGID.exe"C:\Users\Admin\AppData\Local\Temp\CGDBGCBGID.exe"4⤵
- 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\CGDBGCBGID.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 2680 -s 25243⤵
- Program crash
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C:\Users\Admin\AppData\Local\Temp\u1eg.1.exe"C:\Users\Admin\AppData\Local\Temp\u1eg.1.exe"2⤵
- 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 1816 -s 15922⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1816 -ip 18161⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 2680 -ip 26801⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Are.docx
mozglue.dll
nss3.dll
CGDBGCBGID.exe
ioloDMLog.txt
u1eg.0.exe
u1eg.1.exe
memory/1164-29-0x0000000002760000-0x0000000002761000-memory.dmp
memory/1164-149-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/1164-90-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/1816-3-0x0000000000400000-0x0000000000889000-memory.dmp
memory/1816-28-0x0000000000A70000-0x0000000000B70000-memory.dmp
memory/1816-1-0x0000000000A70000-0x0000000000B70000-memory.dmp
memory/1816-59-0x0000000000400000-0x0000000000889000-memory.dmp
memory/1816-60-0x0000000002730000-0x000000000279C000-memory.dmp
memory/1816-2-0x0000000002730000-0x000000000279C000-memory.dmp
memory/1816-5-0x0000000000400000-0x0000000000889000-memory.dmp
memory/2524-204-0x0000000000700000-0x0000000000720000-memory.dmp
memory/2524-205-0x0000000072640000-0x0000000072DF1000-memory.dmp
memory/2524-207-0x0000000005140000-0x0000000005150000-memory.dmp
memory/2524-211-0x0000000072640000-0x0000000072DF1000-memory.dmp
memory/2680-16-0x0000000000400000-0x0000000000869000-memory.dmp
memory/2680-150-0x0000000000400000-0x0000000000869000-memory.dmp
memory/2680-206-0x0000000000400000-0x0000000000869000-memory.dmp
memory/2680-89-0x0000000000400000-0x0000000000869000-memory.dmp
memory/2680-32-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/2680-15-0x0000000002570000-0x0000000002597000-memory.dmp
memory/2680-14-0x0000000000960000-0x0000000000A60000-memory.dmp
memory/2680-179-0x0000000000960000-0x0000000000A60000-memory.dmp
memory/4460-168-0x000001364C9F0000-0x000001364CAA2000-memory.dmp
memory/4460-157-0x0000013632710000-0x0000013632724000-memory.dmp
memory/4460-170-0x000001364CD50000-0x000001364CDCA000-memory.dmp
memory/4460-169-0x000001364CD20000-0x000001364CD4A000-memory.dmp
memory/4460-171-0x000001364CDD0000-0x000001364CE32000-memory.dmp
memory/4460-172-0x000001364CEB0000-0x000001364CF26000-memory.dmp
memory/4460-173-0x00000136326A0000-0x00000136326AA000-memory.dmp
memory/4460-177-0x000001364CF30000-0x000001364D230000-memory.dmp
memory/4460-162-0x000001364C8A0000-0x000001364C8C4000-memory.dmp
memory/4460-180-0x0000013651940000-0x0000013651948000-memory.dmp
memory/4460-181-0x000001364C8C0000-0x000001364C8D0000-memory.dmp
memory/4460-183-0x000001364C8C0000-0x000001364C8D0000-memory.dmp
memory/4460-184-0x00000136512C0000-0x00000136512F8000-memory.dmp
memory/4460-185-0x0000013651290000-0x000001365129E000-memory.dmp
memory/4460-182-0x000001364C8C0000-0x000001364C8D0000-memory.dmp
memory/4460-187-0x0000013651BE0000-0x0000013651BEA000-memory.dmp
memory/4460-188-0x0000013651960000-0x0000013651982000-memory.dmp
memory/4460-167-0x000001364C9D0000-0x000001364C9DA000-memory.dmp
memory/4460-192-0x0000013652120000-0x0000013652648000-memory.dmp
memory/4460-196-0x00000136519D0000-0x0000013651A20000-memory.dmp
memory/4460-197-0x0000013651980000-0x000001365198C000-memory.dmp
memory/4460-156-0x0000013632720000-0x000001363272C000-memory.dmp
memory/4460-155-0x0000013632700000-0x0000013632710000-memory.dmp
memory/4460-154-0x000001364CAC0000-0x000001364CBD0000-memory.dmp
memory/4460-153-0x000001364C8C0000-0x000001364C8D0000-memory.dmp
memory/4460-152-0x000001362E940000-0x0000013632238000-memory.dmp
memory/4460-208-0x000001364D360000-0x000001364D382000-memory.dmp
memory/4460-151-0x00007FFD3C600000-0x00007FFD3D0C2000-memory.dmp
memory/4460-212-0x000001364D390000-0x000001364D3AE000-memory.dmp
memory/4460-214-0x00007FFD3C600000-0x00007FFD3D0C2000-memory.dmp
memory/4460-215-0x000001364C8C0000-0x000001364C8D0000-memory.dmp
memory/4460-216-0x000001364C8C0000-0x000001364C8D0000-memory.dmp
memory/4460-217-0x000001364C8C0000-0x000001364C8D0000-memory.dmp
memory/4460-218-0x000001364C8C0000-0x000001364C8D0000-memory.dmp