Analysis
- max time kernel
147s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20240426-en - resource tags
- submitted
05/05/2024, 16:51
General
- Target a99357efa9bc59ee24d82b44d436053de4242598517238d3d012ccf9bd4ba37c.exe
- Size 416KB
- Sample240505-vcs6dsfc3w
- SHA256 a99357efa9bc59ee24d82b44d436053de4242598517238d3d012ccf9bd4ba37c
Malware Config
Extracted
-
stealc
-
http://185.172.128.150
-
url_path
/c698e1bc8a2f5e6d.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 2 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.
- 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 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\a99357efa9bc59ee24d82b44d436053de4242598517238d3d012ccf9bd4ba37c.exe"C:\Users\Admin\AppData\Local\Temp\a99357efa9bc59ee24d82b44d436053de4242598517238d3d012ccf9bd4ba37c.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\u1cc.0.exe"C:\Users\Admin\AppData\Local\Temp\u1cc.0.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1168 -s 24963⤵
- Program crash
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-
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C:\Users\Admin\AppData\Local\Temp\u1cc.1.exe"C:\Users\Admin\AppData\Local\Temp\u1cc.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
-
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1740 -s 11722⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1740 -ip 17401⤵
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 1168 -ip 11681⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Are.docx
mozglue.dll
nss3.dll
u1cc.0.exe
u1cc.1.exe
memory/1168-49-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/1168-33-0x0000000000400000-0x0000000002B02000-memory.dmp
memory/1168-91-0x0000000000400000-0x0000000002B02000-memory.dmp
memory/1168-173-0x0000000000400000-0x0000000002B02000-memory.dmp
memory/1168-163-0x0000000000400000-0x0000000002B02000-memory.dmp
memory/1740-27-0x0000000000400000-0x0000000002B25000-memory.dmp
memory/1740-2-0x0000000004880000-0x00000000048EC000-memory.dmp
memory/1740-28-0x0000000000400000-0x000000000046F000-memory.dmp
memory/1740-1-0x0000000002CE0000-0x0000000002DE0000-memory.dmp
memory/1740-3-0x0000000000400000-0x000000000046F000-memory.dmp
memory/3000-101-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/3000-104-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/3232-134-0x000002C536100000-0x000002C53610A000-memory.dmp
memory/3232-146-0x000002C53A1B0000-0x000002C53A1B8000-memory.dmp
memory/3232-133-0x000002C5360D0000-0x000002C5360F4000-memory.dmp
memory/3232-130-0x000002C535E40000-0x000002C535E50000-memory.dmp
memory/3232-135-0x000002C536280000-0x000002C536332000-memory.dmp
memory/3232-136-0x000002C536330000-0x000002C53635A000-memory.dmp
memory/3232-137-0x000002C536360000-0x000002C5363DA000-memory.dmp
memory/3232-138-0x000002C5363E0000-0x000002C536442000-memory.dmp
memory/3232-139-0x000002C5364C0000-0x000002C536536000-memory.dmp
memory/3232-140-0x000002C535E20000-0x000002C535E2A000-memory.dmp
memory/3232-144-0x000002C536540000-0x000002C536840000-memory.dmp
memory/3232-132-0x000002C535E50000-0x000002C535E64000-memory.dmp
memory/3232-147-0x000002C53A8C0000-0x000002C53A8F8000-memory.dmp
memory/3232-148-0x000002C53A880000-0x000002C53A88E000-memory.dmp
memory/3232-149-0x000002C53A940000-0x000002C53A94A000-memory.dmp
memory/3232-150-0x000002C53B210000-0x000002C53B232000-memory.dmp
memory/3232-151-0x000002C53B760000-0x000002C53BC88000-memory.dmp
memory/3232-154-0x000002C53AFE0000-0x000002C53B030000-memory.dmp
memory/3232-155-0x000002C53AF90000-0x000002C53AF9C000-memory.dmp
memory/3232-156-0x000002C53B030000-0x000002C53B052000-memory.dmp
memory/3232-157-0x000002C53B060000-0x000002C53B07E000-memory.dmp
memory/3232-131-0x000002C535E60000-0x000002C535E6C000-memory.dmp
memory/3232-126-0x000002C535FB0000-0x000002C5360C0000-memory.dmp
memory/3232-108-0x000002C517F70000-0x000002C51B868000-memory.dmp