Analysis
- max time kernel
149s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
- submitted
27/05/2026, 10:23
General
- Target 9e7f117960e147e723582fa7edbe67d764b8a9140ec2a9ef7daed27e8c513978.exe
- Size 2.5MB
- Sample260527-me4e5sdv2v
- SHA256 9e7f117960e147e723582fa7edbe67d764b8a9140ec2a9ef7daed27e8c513978
Malware Config
Signatures
- Executes dropped EXE 2 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Drops file in Program Files directory 10 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Inno Setup is an open-source installation builder for Windows applications. 3 IoCs
Inno Setup installer
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\9e7f117960e147e723582fa7edbe67d764b8a9140ec2a9ef7daed27e8c513978.exe"C:\Users\Admin\AppData\Local\Temp\9e7f117960e147e723582fa7edbe67d764b8a9140ec2a9ef7daed27e8c513978.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- 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\bfrnbdqbxu.exe" /VERYSILENT2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\bfrnbdqbxu.exe"C:\Users\Admin\AppData\Local\Temp\bfrnbdqbxu.exe" /VERYSILENT3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\is-JQJGT.tmp\bfrnbdqbxu.tmp"C:\Users\Admin\AppData\Local\Temp\is-JQJGT.tmp\bfrnbdqbxu.tmp" /SL5="$5025C,90766,54272,C:\Users\Admin\AppData\Local\Temp\bfrnbdqbxu.exe" /VERYSILENT4⤵
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
bfrnbdqbxu.exe
bfrnbdqbxu.tmp
memory/2424-16-0x0000000000400000-0x00000000004F4000-memory.dmp
memory/2424-20-0x0000000000400000-0x00000000004F4000-memory.dmp
memory/2424-43-0x0000000000400000-0x00000000004F4000-memory.dmp
memory/2520-9-0x000000000040D000-0x000000000040E000-memory.dmp
memory/2520-10-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2520-44-0x0000000000400000-0x0000000000414000-memory.dmp
memory/2840-0-0x0000000000630000-0x00000000008BA000-memory.dmp
memory/2840-2-0x0000000010000000-0x0000000010274000-memory.dmp