Analysis
- max time kernel
127s - max time network
130s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
30/04/2024, 08:58
General
- Target 71f134655c1be04282acfbf0944314f016c26a50f34dbaea9122013d2cc1d351.exe
- Size 411KB
- Sample240430-kw8ebagf52
- SHA256 71f134655c1be04282acfbf0944314f016c26a50f34dbaea9122013d2cc1d351
Malware Config
Extracted
-
stealc
-
http://185.172.128.150
-
url_path
/c698e1bc8a2f5e6d.php
Signatures
- Detect ZGRat V1 3 IoCs
- SectopRAT
SectopRAT is a remote access trojan first seen in November 2019.
- SectopRAT payload 1 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 3 IoCs
- Loads dropped DLL 3 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.
- Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
- Suspicious use of SetThreadContext 2 IoCs
- 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 30 IoCs
- Suspicious behavior: MapViewOfSection 3 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of FindShellTrayWindow 7 IoCs
- Suspicious use of SendNotifyMessage 7 IoCs
- Suspicious use of SetWindowsHookEx 3 IoCs
- Suspicious use of WriteProcessMemory 20 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\71f134655c1be04282acfbf0944314f016c26a50f34dbaea9122013d2cc1d351.exe"C:\Users\Admin\AppData\Local\Temp\71f134655c1be04282acfbf0944314f016c26a50f34dbaea9122013d2cc1d351.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\u37s.0.exe"C:\Users\Admin\AppData\Local\Temp\u37s.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 4704 -s 23603⤵
- Program crash
-
-
-
C:\Users\Admin\AppData\Local\Temp\u37s.2\run.exe"C:\Users\Admin\AppData\Local\Temp\u37s.2\run.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exeC:\Windows\SysWOW64\cmd.exe3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
-
-
-
C:\Users\Admin\AppData\Local\Temp\u37s.3.exe"C:\Users\Admin\AppData\Local\Temp\u37s.3.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 -u -p 4168 -s 16082⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4168 -ip 41681⤵
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 4704 -ip 47041⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Are.docx
mozglue.dll
nss3.dll
b27ec0ae
ioloDMLog.txt
tmpE4F2.tmp
tmpE514.tmp
u37s.0.exe
u37s.1.zip
UIxMarketPlugin.dll
bunch.dat
relay.dll
run.exe
whale.dbf
u37s.3.exe
memory/1412-287-0x0000000005B50000-0x0000000005B6E000-memory.dmp
memory/1412-284-0x00000000055F0000-0x0000000005640000-memory.dmp
memory/1412-283-0x00000000056D0000-0x0000000005746000-memory.dmp
memory/1412-282-0x00000000058A0000-0x0000000005A62000-memory.dmp
memory/1412-281-0x0000000005B90000-0x0000000006134000-memory.dmp
memory/1412-285-0x00000000054F0000-0x00000000054FA000-memory.dmp
memory/1412-280-0x0000000005540000-0x00000000055D2000-memory.dmp
memory/1412-279-0x0000000000F60000-0x0000000001026000-memory.dmp
memory/1412-276-0x0000000071BF0000-0x0000000072E44000-memory.dmp
memory/1412-286-0x0000000006770000-0x0000000006C9C000-memory.dmp
memory/1412-288-0x00000000062F0000-0x0000000006356000-memory.dmp
memory/1412-307-0x0000000007BB0000-0x0000000007BBA000-memory.dmp
memory/3444-270-0x000002CBECF20000-0x000002CBECF2C000-memory.dmp
memory/3444-265-0x000002CBED1A0000-0x000002CBED1C2000-memory.dmp
memory/3444-240-0x000002CBC7FB0000-0x000002CBCB8A8000-memory.dmp
memory/3444-242-0x000002CBE7890000-0x000002CBE79A0000-memory.dmp
memory/3444-244-0x000002CBCD5F0000-0x000002CBCD5FC000-memory.dmp
memory/3444-243-0x000002CBCBCB0000-0x000002CBCBCC0000-memory.dmp
memory/3444-245-0x000002CBCD5E0000-0x000002CBCD5F4000-memory.dmp
memory/3444-246-0x000002CBCD660000-0x000002CBCD684000-memory.dmp
memory/3444-247-0x000002CBCD600000-0x000002CBCD60A000-memory.dmp
memory/3444-248-0x000002CBE76D0000-0x000002CBE7782000-memory.dmp
memory/3444-249-0x000002CBE7B60000-0x000002CBE7B8A000-memory.dmp
memory/3444-250-0x000002CBE7AE0000-0x000002CBE7B5A000-memory.dmp
memory/3444-251-0x000002CBE7BA0000-0x000002CBE7C02000-memory.dmp
memory/3444-252-0x000002CBE7C80000-0x000002CBE7CF6000-memory.dmp
memory/3444-253-0x000002CBE7780000-0x000002CBE778A000-memory.dmp
memory/3444-257-0x000002CBE7D00000-0x000002CBE8000000-memory.dmp
memory/3444-272-0x000002CBECFF0000-0x000002CBED00E000-memory.dmp
memory/3444-261-0x000002CBEC6F0000-0x000002CBEC6F8000-memory.dmp
memory/3444-262-0x000002CBEC030000-0x000002CBEC068000-memory.dmp
memory/3444-263-0x000002CBEC000000-0x000002CBEC00E000-memory.dmp
memory/3444-264-0x000002CBECF00000-0x000002CBECF0A000-memory.dmp
memory/3444-271-0x000002CBECFC0000-0x000002CBECFE2000-memory.dmp
memory/3444-266-0x000002CBED6F0000-0x000002CBEDC18000-memory.dmp
memory/3444-269-0x000002CBECF70000-0x000002CBECFC0000-memory.dmp
memory/3676-218-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/3676-201-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/4032-274-0x0000000073050000-0x00000000731CB000-memory.dmp
memory/4032-198-0x00007FF86DA30000-0x00007FF86DC25000-memory.dmp
memory/4148-179-0x0000000073050000-0x00000000731CB000-memory.dmp
memory/4148-143-0x0000000073050000-0x00000000731CB000-memory.dmp
memory/4148-144-0x00007FF86DA30000-0x00007FF86DC25000-memory.dmp
memory/4168-168-0x00000000024A0000-0x000000000250D000-memory.dmp
memory/4168-1-0x00000000008B0000-0x00000000009B0000-memory.dmp
memory/4168-167-0x0000000000400000-0x0000000000869000-memory.dmp
memory/4168-3-0x0000000000400000-0x0000000000869000-memory.dmp
memory/4168-2-0x00000000024A0000-0x000000000250D000-memory.dmp
memory/4704-197-0x0000000000400000-0x0000000001A10000-memory.dmp
memory/4704-260-0x0000000000400000-0x0000000001A10000-memory.dmp
memory/4704-19-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/4704-18-0x0000000000400000-0x0000000001A10000-memory.dmp
memory/4704-16-0x0000000001D50000-0x0000000001E50000-memory.dmp
memory/4704-17-0x0000000001B20000-0x0000000001B47000-memory.dmp