Analysis
- max time kernel
149s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
12/04/2024, 08:41
General
- Target 9fb615daac3943f947eb3e58ba0ad619.exe
- Size 490KB
- Sample240412-klez1scb3x
- SHA256 9237495e0ce63c60224091d7e83285b745272e3bd276efe2dd0153c8dcd67f29
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 29 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\9fb615daac3943f947eb3e58ba0ad619.exe"C:\Users\Admin\AppData\Local\Temp\9fb615daac3943f947eb3e58ba0ad619.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\u388.0.exe"C:\Users\Admin\AppData\Local\Temp\u388.0.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\FHIECBAFBF.exe"3⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\FHIECBAFBF.exe"C:\Users\Admin\AppData\Local\Temp\FHIECBAFBF.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\FHIECBAFBF.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 3860 -s 23243⤵
- Program crash
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C:\Users\Admin\AppData\Local\Temp\u388.1.exe"C:\Users\Admin\AppData\Local\Temp\u388.1.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 4184 -s 11402⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4184 -ip 41841⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 3860 -ip 38601⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Are.docx
mozglue.dll
nss3.dll
FHIECBAFBF.exe
u388.0.exe
u388.1.exe
memory/768-195-0x0000000072760000-0x0000000072F10000-memory.dmp
memory/768-191-0x0000000005810000-0x0000000005820000-memory.dmp
memory/768-189-0x0000000072760000-0x0000000072F10000-memory.dmp
memory/768-188-0x0000000000E40000-0x0000000000E60000-memory.dmp
memory/1708-150-0x00000227BAA80000-0x00000227BAAF6000-memory.dmp
memory/1708-159-0x00000227BA480000-0x00000227BA490000-memory.dmp
memory/1708-201-0x00000227BA480000-0x00000227BA490000-memory.dmp
memory/1708-200-0x00000227BA480000-0x00000227BA490000-memory.dmp
memory/1708-199-0x00000227BA480000-0x00000227BA490000-memory.dmp
memory/1708-117-0x00007FF9C67D0000-0x00007FF9C7291000-memory.dmp
memory/1708-121-0x000002279B660000-0x000002279EF58000-memory.dmp
memory/1708-198-0x00000227BA480000-0x00000227BA490000-memory.dmp
memory/1708-197-0x00007FF9C67D0000-0x00007FF9C7291000-memory.dmp
memory/1708-136-0x00000227BA480000-0x00000227BA490000-memory.dmp
memory/1708-137-0x00000227BA6A0000-0x00000227BA7B0000-memory.dmp
memory/1708-139-0x00000227A0CE0000-0x00000227A0CEC000-memory.dmp
memory/1708-138-0x00000227A0CC0000-0x00000227A0CD0000-memory.dmp
memory/1708-140-0x00000227A0C90000-0x00000227A0CA4000-memory.dmp
memory/1708-141-0x00000227A0D30000-0x00000227A0D54000-memory.dmp
memory/1708-145-0x00000227A0D50000-0x00000227A0D5A000-memory.dmp
memory/1708-147-0x00000227BA8F0000-0x00000227BA91A000-memory.dmp
memory/1708-146-0x00000227BA3D0000-0x00000227BA482000-memory.dmp
memory/1708-148-0x00000227BA920000-0x00000227BA99A000-memory.dmp
memory/1708-149-0x00000227BA9A0000-0x00000227BAA02000-memory.dmp
memory/1708-192-0x00000227BAE60000-0x00000227BAE7E000-memory.dmp
memory/1708-151-0x00000227A0D60000-0x00000227A0D6A000-memory.dmp
memory/1708-155-0x00000227BAB00000-0x00000227BAE00000-memory.dmp
memory/1708-157-0x00000227BA480000-0x00000227BA490000-memory.dmp
memory/1708-158-0x00000227BF4F0000-0x00000227BF4F8000-memory.dmp
memory/1708-181-0x00000227BAE30000-0x00000227BAE52000-memory.dmp
memory/1708-160-0x00000227BEE30000-0x00000227BEE68000-memory.dmp
memory/1708-161-0x00000227BEE00000-0x00000227BEE0E000-memory.dmp
memory/1708-162-0x00000227BFF90000-0x00000227BFF9A000-memory.dmp
memory/1708-163-0x00000227BFFA0000-0x00000227BFFC2000-memory.dmp
memory/1708-164-0x00000227C04F0000-0x00000227C0A18000-memory.dmp
memory/1708-167-0x00000227BFD60000-0x00000227BFDB0000-memory.dmp
memory/1708-168-0x00000227BFD10000-0x00000227BFD1C000-memory.dmp
memory/1708-171-0x00000227BA480000-0x00000227BA490000-memory.dmp
memory/3860-170-0x0000000000400000-0x000000000063B000-memory.dmp
memory/3860-169-0x00000000008E0000-0x00000000009E0000-memory.dmp
memory/3860-100-0x0000000000400000-0x000000000063B000-memory.dmp
memory/3860-37-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/3860-14-0x0000000000890000-0x00000000008B7000-memory.dmp
memory/3860-15-0x0000000000400000-0x000000000063B000-memory.dmp
memory/3860-13-0x00000000008E0000-0x00000000009E0000-memory.dmp
memory/3860-190-0x0000000000400000-0x000000000063B000-memory.dmp
memory/4184-3-0x0000000000400000-0x000000000048B000-memory.dmp
memory/4184-1-0x0000000000630000-0x0000000000730000-memory.dmp
memory/4184-2-0x0000000002210000-0x000000000227C000-memory.dmp
memory/4184-31-0x0000000000400000-0x000000000048B000-memory.dmp
memory/4184-32-0x0000000002210000-0x000000000227C000-memory.dmp
memory/5032-116-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/5032-101-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/5032-26-0x0000000002690000-0x0000000002691000-memory.dmp