Analysis
- max time kernel
147s - max time network
150s - platform
windows11-21h2_x64 - resource
win11-20240419-en - resource tags
- submitted
07/05/2024, 01:34
General
- Target d5c6b91854155aa588b8f8b4e6fde8ebd63a8242e8c5155b596af43ed4b18bfc.exe
- Size 372KB
- Sample240507-bzd57sfd87
- SHA256 d5c6b91854155aa588b8f8b4e6fde8ebd63a8242e8c5155b596af43ed4b18bfc
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\d5c6b91854155aa588b8f8b4e6fde8ebd63a8242e8c5155b596af43ed4b18bfc.exe"C:\Users\Admin\AppData\Local\Temp\d5c6b91854155aa588b8f8b4e6fde8ebd63a8242e8c5155b596af43ed4b18bfc.exe"1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\u3jo.0.exe"C:\Users\Admin\AppData\Local\Temp\u3jo.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 1652 -s 24643⤵
- Program crash
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C:\Users\Admin\AppData\Local\Temp\u3jo.1.exe"C:\Users\Admin\AppData\Local\Temp\u3jo.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 4596 -s 15322⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4596 -ip 45961⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 1652 -ip 16521⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Are.docx
mozglue.dll
nss3.dll
ioloDMLog.txt
u3jo.0.exe
u3jo.1.exe
memory/244-154-0x0000029460390000-0x0000029460398000-memory.dmp
memory/244-155-0x0000029460D10000-0x0000029460D1A000-memory.dmp
memory/244-173-0x0000029460AF0000-0x0000029460B0E000-memory.dmp
memory/244-162-0x0000029460B90000-0x0000029460C06000-memory.dmp
memory/244-161-0x0000029460AB0000-0x0000029460ABC000-memory.dmp
memory/244-158-0x00000294612C0000-0x00000294617E8000-memory.dmp
memory/244-157-0x0000029460A90000-0x0000029460AB2000-memory.dmp
memory/244-156-0x0000029460D30000-0x0000029460D92000-memory.dmp
memory/244-153-0x0000029460370000-0x000002946037E000-memory.dmp
memory/244-110-0x000002943DC10000-0x0000029441444000-memory.dmp
memory/244-152-0x00000294603A0000-0x00000294603D8000-memory.dmp
memory/244-151-0x0000029460A60000-0x0000029460A68000-memory.dmp
memory/244-131-0x000002945BD00000-0x000002945BE0A000-memory.dmp
memory/244-133-0x0000029443160000-0x000002944316C000-memory.dmp
memory/244-132-0x0000029443130000-0x0000029443140000-memory.dmp
memory/244-134-0x0000029443150000-0x0000029443164000-memory.dmp
memory/244-135-0x00000294431D0000-0x00000294431F4000-memory.dmp
memory/244-138-0x0000029443230000-0x000002944325A000-memory.dmp
memory/244-137-0x000002945BB40000-0x000002945BBF2000-memory.dmp
memory/244-136-0x0000029443200000-0x000002944320A000-memory.dmp
memory/244-139-0x000002945BFB0000-0x000002945C000000-memory.dmp
memory/244-140-0x000002945C000000-0x000002945C022000-memory.dmp
memory/244-145-0x0000029443110000-0x000002944311A000-memory.dmp
memory/244-149-0x000002945C030000-0x000002945C330000-memory.dmp
memory/1652-164-0x0000000000400000-0x0000000001A04000-memory.dmp
memory/1652-13-0x0000000000400000-0x0000000001A04000-memory.dmp
memory/1652-181-0x0000000000400000-0x0000000001A04000-memory.dmp
memory/1652-175-0x0000000000400000-0x0000000001A04000-memory.dmp
memory/1652-14-0x0000000000400000-0x0000000001A04000-memory.dmp
memory/1652-88-0x0000000000400000-0x0000000001A04000-memory.dmp
memory/1652-83-0x0000000000400000-0x0000000001A04000-memory.dmp
memory/1652-50-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/1652-163-0x0000000000400000-0x0000000001A04000-memory.dmp
memory/2684-106-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/2684-87-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/4596-30-0x0000000000400000-0x000000000046F000-memory.dmp
memory/4596-29-0x0000000000400000-0x0000000001A27000-memory.dmp
memory/4596-2-0x0000000001CA0000-0x0000000001D0C000-memory.dmp
memory/4596-3-0x0000000000400000-0x000000000046F000-memory.dmp
memory/4596-1-0x0000000001D30000-0x0000000001E30000-memory.dmp