Analysis
- max time kernel
126s - max time network
127s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
28/04/2024, 01:01
General
- Target 039db1b22096f5f1703d22c5bf4ef4f2e56a1bf10bc0188b9755d51bb4c6e17a.exe
- Size 347KB
- Sample240428-bc68gacd67
- SHA256 039db1b22096f5f1703d22c5bf4ef4f2e56a1bf10bc0188b9755d51bb4c6e17a
Malware Config
Extracted
-
stealc
-
http://185.172.128.62
-
url_path
/902e53a07830e030.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#.
- Detect binaries embedding considerable number of MFA browser extension IDs. 5 IoCs
- Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs. 5 IoCs
- Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 4 IoCs
- Detects encrypted or obfuscated .NET executables 1 IoCs
- 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.
- 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 34 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\039db1b22096f5f1703d22c5bf4ef4f2e56a1bf10bc0188b9755d51bb4c6e17a.exe"C:\Users\Admin\AppData\Local\Temp\039db1b22096f5f1703d22c5bf4ef4f2e56a1bf10bc0188b9755d51bb4c6e17a.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\u2w4.0.exe"C:\Users\Admin\AppData\Local\Temp\u2w4.0.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 756 -s 21323⤵
- Program crash
-
-
-
C:\Users\Admin\AppData\Local\Temp\u2w4.2\run.exe"C:\Users\Admin\AppData\Local\Temp\u2w4.2\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
-
-
-
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C:\Users\Admin\AppData\Local\Temp\u2w4.3.exe"C:\Users\Admin\AppData\Local\Temp\u2w4.3.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
-
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3748 -s 15882⤵
- Program crash
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3748 -ip 37481⤵
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 756 -ip 7561⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
Are.docx
mozglue.dll
nss3.dll
9d785366
tmpD071.tmp
u2w4.0.exe
u2w4.1.zip
UIxMarketPlugin.dll
bunch.dat
relay.dll
run.exe
whale.dbf
u2w4.3.exe
memory/756-148-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/756-131-0x0000000000400000-0x000000000083A000-memory.dmp
memory/756-237-0x00000000008C0000-0x00000000008E7000-memory.dmp
memory/756-95-0x0000000000400000-0x000000000083A000-memory.dmp
memory/756-266-0x0000000000400000-0x000000000083A000-memory.dmp
memory/756-238-0x0000000000A60000-0x0000000000B60000-memory.dmp
memory/756-94-0x0000000000A60000-0x0000000000B60000-memory.dmp
memory/756-272-0x0000000000400000-0x000000000083A000-memory.dmp
memory/756-232-0x0000000000400000-0x000000000083A000-memory.dmp
memory/756-92-0x00000000008C0000-0x00000000008E7000-memory.dmp
memory/1884-160-0x00007FFB728D0000-0x00007FFB72AC5000-memory.dmp
memory/1884-236-0x00000000725B0000-0x000000007272B000-memory.dmp
memory/2532-102-0x00007FFB728D0000-0x00007FFB72AC5000-memory.dmp
memory/2532-128-0x00000000725B0000-0x000000007272B000-memory.dmp
memory/2532-101-0x00000000725B0000-0x000000007272B000-memory.dmp
memory/3748-123-0x0000000002FC0000-0x000000000302D000-memory.dmp
memory/3748-1-0x0000000002C80000-0x0000000002D80000-memory.dmp
memory/3748-3-0x0000000000400000-0x0000000002B15000-memory.dmp
memory/3748-2-0x0000000002FC0000-0x000000000302D000-memory.dmp
memory/3748-122-0x0000000000400000-0x0000000002B15000-memory.dmp
memory/3832-197-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/3832-182-0x0000000000400000-0x00000000008AD000-memory.dmp
memory/3900-234-0x0000024E49F90000-0x0000024E49FAE000-memory.dmp
memory/3900-201-0x0000024E24F50000-0x0000024E28848000-memory.dmp
memory/3900-211-0x0000024E446C0000-0x0000024E446EA000-memory.dmp
memory/3900-210-0x0000024E44540000-0x0000024E4454A000-memory.dmp
memory/3900-224-0x0000024E48FB0000-0x0000024E48FBE000-memory.dmp
memory/3900-223-0x0000024E48FF0000-0x0000024E49028000-memory.dmp
memory/3900-226-0x0000024E4A140000-0x0000024E4A162000-memory.dmp
memory/3900-225-0x0000024E49060000-0x0000024E4906A000-memory.dmp
memory/3900-227-0x0000024E4A690000-0x0000024E4ABB8000-memory.dmp
memory/3900-222-0x0000024E488E0000-0x0000024E488E8000-memory.dmp
memory/3900-231-0x0000024E49EC0000-0x0000024E49ECC000-memory.dmp
memory/3900-230-0x0000024E49F10000-0x0000024E49F60000-memory.dmp
memory/3900-203-0x0000024E2A530000-0x0000024E2A540000-memory.dmp
memory/3900-233-0x0000024E49F60000-0x0000024E49F82000-memory.dmp
memory/3900-206-0x0000024E44520000-0x0000024E44544000-memory.dmp
memory/3900-204-0x0000024E42CC0000-0x0000024E42CCC000-memory.dmp
memory/3900-202-0x0000024E44880000-0x0000024E44990000-memory.dmp
memory/3900-212-0x0000024E44AD0000-0x0000024E44B82000-memory.dmp
memory/3900-205-0x0000024E2A540000-0x0000024E2A554000-memory.dmp
memory/3900-213-0x0000024E446F0000-0x0000024E4476A000-memory.dmp
memory/3900-220-0x0000024E44CE0000-0x0000024E44FE0000-memory.dmp
memory/3900-216-0x0000024E44550000-0x0000024E4455A000-memory.dmp
memory/3900-215-0x0000024E44C60000-0x0000024E44CD6000-memory.dmp
memory/3900-214-0x0000024E44B80000-0x0000024E44BE2000-memory.dmp
memory/4964-273-0x0000000000E30000-0x0000000000EF6000-memory.dmp
memory/4964-274-0x00000000054D0000-0x0000000005562000-memory.dmp
memory/4964-275-0x0000000005B60000-0x0000000006104000-memory.dmp
memory/4964-277-0x00000000056A0000-0x0000000005716000-memory.dmp
memory/4964-276-0x00000000057F0000-0x00000000059B2000-memory.dmp
memory/4964-278-0x0000000005720000-0x0000000005770000-memory.dmp
memory/4964-279-0x0000000005590000-0x000000000559A000-memory.dmp
memory/4964-280-0x0000000006740000-0x0000000006C6C000-memory.dmp
memory/4964-281-0x0000000006290000-0x00000000062AE000-memory.dmp
memory/4964-282-0x0000000006380000-0x00000000063E6000-memory.dmp
memory/4964-240-0x0000000071150000-0x00000000723A4000-memory.dmp
memory/4964-295-0x0000000007BB0000-0x0000000007BBA000-memory.dmp