Analysis
- max time kernel
142s - max time network
143s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
10/05/2024, 04:30
General
- Target 20a7dda844921b00f822d2fba4b82b54c61387e535ab157a0492457d6b889821.exe
- Size 372KB
- Sample240510-e4y8qabb3x
- SHA256 20a7dda844921b00f822d2fba4b82b54c61387e535ab157a0492457d6b889821
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
- Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
- 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 1 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 28 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\20a7dda844921b00f822d2fba4b82b54c61387e535ab157a0492457d6b889821.exe"C:\Users\Admin\AppData\Local\Temp\20a7dda844921b00f822d2fba4b82b54c61387e535ab157a0492457d6b889821.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\u31w.0.exe"C:\Users\Admin\AppData\Local\Temp\u31w.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 3668 -s 20803⤵
- Program crash
-
-
-
C:\Users\Admin\AppData\Local\Temp\u31w.1.exe"C:\Users\Admin\AppData\Local\Temp\u31w.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
-
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 -pss -s 444 -p 3668 -ip 36681⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Are.docx
mozglue.dll
nss3.dll
u31w.0.exe
u31w.1.exe
memory/1672-55-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/1672-110-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/3584-129-0x00000190F4680000-0x00000190F46B8000-memory.dmp
memory/3584-120-0x00000190F02C0000-0x00000190F0310000-memory.dmp
memory/3584-169-0x00000190F0900000-0x00000190F091E000-memory.dmp
memory/3584-145-0x00000190F5570000-0x00000190F55E6000-memory.dmp
memory/3584-141-0x00000190F0640000-0x00000190F064C000-memory.dmp
memory/3584-138-0x00000190F5D80000-0x00000190F62A8000-memory.dmp
memory/3584-134-0x00000190F5550000-0x00000190F5572000-memory.dmp
memory/3584-133-0x00000190F57F0000-0x00000190F5852000-memory.dmp
memory/3584-111-0x00000190E9030000-0x00000190EC864000-memory.dmp
memory/3584-112-0x00000190EFDE0000-0x00000190EFEEA000-memory.dmp
memory/3584-113-0x00000190EE410000-0x00000190EE420000-memory.dmp
memory/3584-114-0x00000190EED60000-0x00000190EED6C000-memory.dmp
memory/3584-115-0x00000190EED50000-0x00000190EED64000-memory.dmp
memory/3584-116-0x00000190EED70000-0x00000190EED94000-memory.dmp
memory/3584-117-0x00000190EEDE0000-0x00000190EEDEA000-memory.dmp
memory/3584-118-0x00000190EFF20000-0x00000190EFF4A000-memory.dmp
memory/3584-119-0x00000190F01C0000-0x00000190F0272000-memory.dmp
memory/3584-132-0x00000190F57D0000-0x00000190F57DA000-memory.dmp
memory/3584-121-0x00000190F0310000-0x00000190F0332000-memory.dmp
memory/3584-122-0x00000190EEDF0000-0x00000190EEDFA000-memory.dmp
memory/3584-126-0x00000190F0340000-0x00000190F0640000-memory.dmp
memory/3584-128-0x00000190F3F70000-0x00000190F3F78000-memory.dmp
memory/3584-130-0x00000190F4640000-0x00000190F464E000-memory.dmp
memory/3584-131-0x00000190F4660000-0x00000190F4668000-memory.dmp
memory/3668-92-0x0000000000400000-0x0000000002AF9000-memory.dmp
memory/3668-56-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/3668-54-0x0000000000400000-0x0000000002AF9000-memory.dmp
memory/3668-168-0x0000000000400000-0x0000000002AF9000-memory.dmp
memory/3668-38-0x0000000000400000-0x0000000002AF9000-memory.dmp
memory/3956-1-0x0000000002C00000-0x0000000002D00000-memory.dmp
memory/3956-27-0x0000000000400000-0x0000000002B1B000-memory.dmp
memory/3956-29-0x00000000047B0000-0x000000000481C000-memory.dmp
memory/3956-28-0x0000000000400000-0x000000000046F000-memory.dmp
memory/3956-6-0x0000000000400000-0x0000000002B1B000-memory.dmp
memory/3956-3-0x0000000000400000-0x000000000046F000-memory.dmp
memory/3956-2-0x00000000047B0000-0x000000000481C000-memory.dmp