Analysis
- max time kernel
146s - max time network
153s - platform
windows11-21h2_x64 - resource
win11-20240508-en - resource tags
- submitted
16/05/2024, 10:46
General
- Target ae005eda3dbe466181c5f448d101ae7a3b92832df811ab905e5951a3c401b5ea.exe
- Size 373KB
- Sample240516-mt5azshc68
- SHA256 ae005eda3dbe466181c5f448d101ae7a3b92832df811ab905e5951a3c401b5ea
Malware Config
Extracted
-
stealc
-
default100
-
http://185.172.128.150
-
url_path
/c698e1bc8a2f5e6d.php
Signatures
- Stealc
Stealc is an infostealer 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 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 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\ae005eda3dbe466181c5f448d101ae7a3b92832df811ab905e5951a3c401b5ea.exe"C:\Users\Admin\AppData\Local\Temp\ae005eda3dbe466181c5f448d101ae7a3b92832df811ab905e5951a3c401b5ea.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\u3pw.0.exe"C:\Users\Admin\AppData\Local\Temp\u3pw.0.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
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-
C:\Users\Admin\AppData\Local\Temp\u3pw.1.exe"C:\Users\Admin\AppData\Local\Temp\u3pw.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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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4820 -s 15242⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4820 -ip 48201⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Are.docx
mozglue.dll
nss3.dll
ioloDMLog.txt
u3pw.0.exe
u3pw.1.exe
memory/708-135-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/708-131-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/708-22-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/960-151-0x0000026DF6DB0000-0x0000026DF70B0000-memory.dmp
memory/960-145-0x0000026DF6D60000-0x0000026DF6DB0000-memory.dmp
memory/960-165-0x0000026DFB870000-0x0000026DFB88E000-memory.dmp
memory/960-164-0x0000026DFB910000-0x0000026DFB986000-memory.dmp
memory/960-163-0x0000026DFB830000-0x0000026DFB83C000-memory.dmp
memory/960-160-0x0000026DFC080000-0x0000026DFC5A8000-memory.dmp
memory/960-159-0x0000026DFBB30000-0x0000026DFBB52000-memory.dmp
memory/960-158-0x0000026DFBAD0000-0x0000026DFBB32000-memory.dmp
memory/960-157-0x0000026DFBAB0000-0x0000026DFBABA000-memory.dmp
memory/960-136-0x0000026DD89B0000-0x0000026DDC1E4000-memory.dmp
memory/960-137-0x0000026DF6980000-0x0000026DF6A8A000-memory.dmp
memory/960-139-0x0000026DDDEF0000-0x0000026DDDEFC000-memory.dmp
memory/960-138-0x0000026DDDED0000-0x0000026DDDEE0000-memory.dmp
memory/960-140-0x0000026DDDEE0000-0x0000026DDDEF4000-memory.dmp
memory/960-141-0x0000026DF6840000-0x0000026DF6864000-memory.dmp
memory/960-142-0x0000026DF6870000-0x0000026DF687A000-memory.dmp
memory/960-144-0x0000026DF6CE0000-0x0000026DF6D0A000-memory.dmp
memory/960-156-0x0000026DFB130000-0x0000026DFB138000-memory.dmp
memory/960-143-0x0000026DF6C30000-0x0000026DF6CE2000-memory.dmp
memory/960-146-0x0000026DF6D10000-0x0000026DF6D32000-memory.dmp
memory/960-147-0x0000026DDC6D0000-0x0000026DDC6DA000-memory.dmp
memory/960-154-0x0000026DFB140000-0x0000026DFB178000-memory.dmp
memory/960-153-0x0000026DFB1C0000-0x0000026DFB1C8000-memory.dmp
memory/960-155-0x0000026DFB110000-0x0000026DFB11E000-memory.dmp
memory/1580-36-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/1580-28-0x0000000000400000-0x0000000000793000-memory.dmp
memory/1580-121-0x0000000000400000-0x0000000000793000-memory.dmp
memory/4820-1-0x0000000000710000-0x0000000000810000-memory.dmp
memory/4820-2-0x00000000021C0000-0x000000000222C000-memory.dmp
memory/4820-3-0x0000000000400000-0x000000000046F000-memory.dmp
memory/4820-33-0x0000000000400000-0x00000000004A7000-memory.dmp
memory/4820-35-0x0000000000400000-0x000000000046F000-memory.dmp
memory/4820-34-0x00000000021C0000-0x000000000222C000-memory.dmp