Analysis
- max time kernel
145s - max time network
127s - platform
windows10-2004_x64 - resource
win10v2004-20240611-en - resource tags
- submitted
03/07/2024, 06:26
General
- Target file.exe
- Size 2.4MB
- Sample240703-g663fs1dne
- SHA256 dde34f614758e4d68e6732f7de0c9e210e6e8d56d65aae0f2cb1ee5d953d587c
Malware Config
Extracted
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stealc
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jony
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http://85.28.47.4
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url_path
/920475a59bac849d.php
Extracted
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amadey
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4.30
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4dd39d
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http://77.91.77.82
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install_dir
ad40971b6b
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install_file
explorti.exe
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strings_key
a434973ad22def7137dbb5e059b7081e
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url_paths
/Hun4Ko/index.php
Signatures
- Amadey
Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.
- Stealc
Stealc is an infostealer written in C++.
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 6 IoCs
- Downloads MZ/PE file
- Checks BIOS information in registry 2 TTPs 12 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Checks computer location settings 2 TTPs 4 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 7 IoCs
- Identifies Wine through registry keys 2 TTPs 6 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
- 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.
- Suspicious use of NtSetInformationThreadHideFromDebugger 9 IoCs
- Drops file in Windows directory 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SetWindowsHookEx 2 IoCs
- Suspicious use of WriteProcessMemory 21 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\EHIJDHCAKK.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\EHIJDHCAKK.exe"C:\Users\Admin\AppData\Local\Temp\EHIJDHCAKK.exe"3⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe"C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe"4⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\1000006001\d6ff4afc7b.exe"C:\Users\Admin\AppData\Local\Temp\1000006001\d6ff4afc7b.exe"5⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetWindowsHookEx
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\CBFBGCGIJK.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\CBFBGCGIJK.exe"C:\Users\Admin\AppData\Local\Temp\CBFBGCGIJK.exe"3⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe"C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe"4⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --field-trial-handle=3020,i,3549704109630749084,1975543916261970610,262144 --variations-seed-version --mojo-platform-channel-handle=2296 /prefetch:31⤵
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3016,i,3549704109630749084,1975543916261970610,262144 --variations-seed-version --mojo-platform-channel-handle=3896 /prefetch:81⤵
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C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exeC:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
-
C:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exeC:\Users\Admin\AppData\Local\Temp\ad40971b6b\explorti.exe1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
mozglue.dll
nss3.dll
SCT Auditing Pending Reports
Sdch Dictionaries
d6ff4afc7b.exe
EHIJDHCAKK.exe
explorti.job
memory/364-152-0x0000000000F40000-0x0000000001404000-memory.dmp
memory/364-151-0x0000000000F40000-0x0000000001404000-memory.dmp
memory/2648-156-0x0000000000F40000-0x0000000001404000-memory.dmp
memory/2648-154-0x0000000000F40000-0x0000000001404000-memory.dmp
memory/2648-159-0x0000000000F40000-0x0000000001404000-memory.dmp
memory/2648-153-0x0000000000F40000-0x0000000001404000-memory.dmp
memory/2648-150-0x0000000000F40000-0x0000000001404000-memory.dmp
memory/2648-157-0x0000000000F40000-0x0000000001404000-memory.dmp
memory/2648-147-0x0000000000F40000-0x0000000001404000-memory.dmp
memory/2648-146-0x0000000000F40000-0x0000000001404000-memory.dmp
memory/2648-115-0x0000000000F40000-0x0000000001404000-memory.dmp
memory/2648-163-0x0000000000F40000-0x0000000001404000-memory.dmp
memory/2648-164-0x0000000000F40000-0x0000000001404000-memory.dmp
memory/2648-162-0x0000000000F40000-0x0000000001404000-memory.dmp
memory/2648-148-0x0000000000F40000-0x0000000001404000-memory.dmp
memory/2648-155-0x0000000000F40000-0x0000000001404000-memory.dmp
memory/2704-125-0x0000000000360000-0x0000000000824000-memory.dmp
memory/2704-102-0x0000000000360000-0x0000000000824000-memory.dmp
memory/3580-0-0x0000000000F00000-0x0000000001AF0000-memory.dmp
memory/3580-83-0x0000000000F00000-0x0000000001AF0000-memory.dmp
memory/3580-2-0x0000000061E00000-0x0000000061EF3000-memory.dmp
memory/3580-96-0x000000007F190000-0x000000007F561000-memory.dmp
memory/3580-1-0x000000007F190000-0x000000007F561000-memory.dmp
memory/3580-95-0x0000000000F00000-0x0000000001AF0000-memory.dmp
memory/4228-145-0x0000000000230000-0x0000000000E20000-memory.dmp
memory/4228-144-0x0000000000230000-0x0000000000E20000-memory.dmp
memory/4304-126-0x0000000000F40000-0x0000000001404000-memory.dmp
memory/4304-128-0x0000000000F40000-0x0000000001404000-memory.dmp
memory/4416-160-0x0000000000F40000-0x0000000001404000-memory.dmp
memory/4416-161-0x0000000000F40000-0x0000000001404000-memory.dmp
memory/4892-112-0x0000000000D60000-0x0000000001224000-memory.dmp
memory/4892-101-0x0000000000D60000-0x0000000001224000-memory.dmp
memory/4892-90-0x0000000000D60000-0x0000000001224000-memory.dmp
memory/4892-89-0x0000000000D61000-0x0000000000D8F000-memory.dmp
memory/4892-88-0x00000000773D4000-0x00000000773D6000-memory.dmp
memory/4892-87-0x0000000000D60000-0x0000000001224000-memory.dmp