Analysis
- max time kernel
148s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20240508-en - resource tags
- submitted
10/05/2024, 04:30
General
- Target 20a7dda844921b00f822d2fba4b82b54c61387e535ab157a0492457d6b889821.exe
- Size 372KB
- Sample240510-e4y8qabb3x
- SHA256 20a7dda844921b00f822d2fba4b82b54c61387e535ab157a0492457d6b889821
Malware Config
Extracted
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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 23 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
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C:\Users\Admin\AppData\Local\Temp\20a7dda844921b00f822d2fba4b82b54c61387e535ab157a0492457d6b889821.exe"C:\Users\Admin\AppData\Local\Temp\20a7dda844921b00f822d2fba4b82b54c61387e535ab157a0492457d6b889821.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\u31g.0.exe"C:\Users\Admin\AppData\Local\Temp\u31g.0.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4956 -s 25163⤵
- Program crash
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C:\Users\Admin\AppData\Local\Temp\u31g.1.exe"C:\Users\Admin\AppData\Local\Temp\u31g.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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-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3940 -s 11642⤵
- Program crash
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3940 -ip 39401⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 356 -p 4956 -ip 49561⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Are.docx
mozglue.dll
nss3.dll
ioloDMLog.txt
u31g.0.exe
u31g.1.exe
memory/1152-54-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/1152-66-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/2200-124-0x00000260B0FA0000-0x00000260B0FAA000-memory.dmp
memory/2200-115-0x00000260AC2B0000-0x00000260AC5B0000-memory.dmp
memory/2200-169-0x00000260ABC00000-0x00000260ABDB3000-memory.dmp
memory/2200-133-0x00000260B0D80000-0x00000260B0D9E000-memory.dmp
memory/2200-131-0x00000260B0E20000-0x00000260B0E96000-memory.dmp
memory/2200-83-0x000002608DCE0000-0x0000026091514000-memory.dmp
memory/2200-101-0x00000260ABDC0000-0x00000260ABECA000-memory.dmp
memory/2200-103-0x00000260ABEF0000-0x00000260ABEFC000-memory.dmp
memory/2200-102-0x00000260ABED0000-0x00000260ABEE0000-memory.dmp
memory/2200-104-0x00000260ABEE0000-0x00000260ABEF4000-memory.dmp
memory/2200-105-0x00000260ABF50000-0x00000260ABF74000-memory.dmp
memory/2200-106-0x00000260AC0D0000-0x00000260AC0DA000-memory.dmp
memory/2200-107-0x00000260AC100000-0x00000260AC1B2000-memory.dmp
memory/2200-108-0x00000260AC1B0000-0x00000260AC1DA000-memory.dmp
memory/2200-109-0x00000260AC230000-0x00000260AC280000-memory.dmp
memory/2200-110-0x00000260AC280000-0x00000260AC2A2000-memory.dmp
memory/2200-111-0x0000026093420000-0x000002609342A000-memory.dmp
memory/2200-130-0x00000260B0D40000-0x00000260B0D4C000-memory.dmp
memory/2200-117-0x00000260B0CF0000-0x00000260B0CF8000-memory.dmp
memory/2200-119-0x00000260B0640000-0x00000260B064E000-memory.dmp
memory/2200-118-0x00000260B0670000-0x00000260B06A8000-memory.dmp
memory/2200-120-0x00000260B0660000-0x00000260B0668000-memory.dmp
memory/2200-127-0x00000260B1550000-0x00000260B1A78000-memory.dmp
memory/2200-125-0x00000260B0FC0000-0x00000260B1022000-memory.dmp
memory/2200-126-0x00000260B0D20000-0x00000260B0D42000-memory.dmp
memory/3940-1-0x0000000002C60000-0x0000000002D60000-memory.dmp
memory/3940-32-0x00000000048B0000-0x000000000491C000-memory.dmp
memory/3940-33-0x0000000000400000-0x000000000046F000-memory.dmp
memory/3940-30-0x0000000000400000-0x0000000002B1B000-memory.dmp
memory/3940-3-0x0000000000400000-0x000000000046F000-memory.dmp
memory/3940-2-0x00000000048B0000-0x000000000491C000-memory.dmp
memory/4956-67-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/4956-132-0x0000000000400000-0x0000000002AF9000-memory.dmp
memory/4956-63-0x0000000000400000-0x0000000002AF9000-memory.dmp
memory/4956-171-0x0000000000400000-0x0000000002AF9000-memory.dmp