Analysis
- max time kernel
127s - max time network
129s - platform
windows11-21h2_x64 - resource
win11-20240426-en - resource tags
- submitted
07/05/2024, 09:25
General
- Target 9528f8cad2c0453c465eddc48c97e161a1532ab9d6e985bc8d29ccdb30bbcb89.exe
- Size 416KB
- Sample240507-ldyb3ada55
- SHA256 9528f8cad2c0453c465eddc48c97e161a1532ab9d6e985bc8d29ccdb30bbcb89
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 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
-
C:\Users\Admin\AppData\Local\Temp\9528f8cad2c0453c465eddc48c97e161a1532ab9d6e985bc8d29ccdb30bbcb89.exe"C:\Users\Admin\AppData\Local\Temp\9528f8cad2c0453c465eddc48c97e161a1532ab9d6e985bc8d29ccdb30bbcb89.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\u3uw.0.exe"C:\Users\Admin\AppData\Local\Temp\u3uw.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 3800 -s 24563⤵
- Program crash
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-
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C:\Users\Admin\AppData\Local\Temp\u3uw.1.exe"C:\Users\Admin\AppData\Local\Temp\u3uw.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 5000 -s 15242⤵
- Program crash
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 5000 -ip 50001⤵
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3800 -ip 38001⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Are.docx
mozglue.dll
nss3.dll
ioloDMLog.txt
u3uw.0.exe
u3uw.1.exe
memory/2344-148-0x0000020668D90000-0x0000020668DC8000-memory.dmp
memory/2344-149-0x0000020668D60000-0x0000020668D6E000-memory.dmp
memory/2344-159-0x00000206694F0000-0x000002066950E000-memory.dmp
memory/2344-158-0x0000020669590000-0x0000020669606000-memory.dmp
memory/2344-157-0x00000206694B0000-0x00000206694BC000-memory.dmp
memory/2344-154-0x0000020669CB0000-0x000002066A1D8000-memory.dmp
memory/2344-153-0x0000020669490000-0x00000206694B2000-memory.dmp
memory/2344-151-0x0000020669470000-0x000002066947A000-memory.dmp
memory/2344-152-0x0000020669720000-0x0000020669782000-memory.dmp
memory/2344-150-0x0000020668D80000-0x0000020668D88000-memory.dmp
memory/2344-130-0x0000020646600000-0x0000020649E34000-memory.dmp
memory/2344-131-0x0000020664530000-0x000002066463A000-memory.dmp
memory/2344-132-0x0000020664510000-0x0000020664520000-memory.dmp
memory/2344-133-0x0000020664650000-0x000002066465C000-memory.dmp
memory/2344-134-0x0000020664640000-0x0000020664654000-memory.dmp
memory/2344-135-0x00000206646B0000-0x00000206646D4000-memory.dmp
memory/2344-136-0x0000020664830000-0x000002066483A000-memory.dmp
memory/2344-138-0x0000020664890000-0x0000020664942000-memory.dmp
memory/2344-137-0x0000020664860000-0x000002066488A000-memory.dmp
memory/2344-139-0x0000020664990000-0x00000206649E0000-memory.dmp
memory/2344-140-0x00000206649E0000-0x0000020664A02000-memory.dmp
memory/2344-141-0x00000206644F0000-0x00000206644FA000-memory.dmp
memory/2344-145-0x0000020664A10000-0x0000020664D10000-memory.dmp
memory/2344-147-0x0000020669450000-0x0000020669458000-memory.dmp
memory/3800-112-0x0000000000400000-0x0000000002B02000-memory.dmp
memory/3800-51-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/3800-35-0x0000000000400000-0x0000000002B02000-memory.dmp
memory/3800-170-0x0000000000400000-0x0000000002B02000-memory.dmp
memory/4756-129-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/4756-128-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/5000-2-0x0000000004850000-0x00000000048BC000-memory.dmp
memory/5000-29-0x0000000004850000-0x00000000048BC000-memory.dmp
memory/5000-1-0x0000000002BD0000-0x0000000002CD0000-memory.dmp
memory/5000-27-0x0000000000400000-0x0000000002B25000-memory.dmp
memory/5000-30-0x0000000000400000-0x000000000046F000-memory.dmp
memory/5000-3-0x0000000000400000-0x000000000046F000-memory.dmp