Analysis
- max time kernel
149s - max time network
136s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
- submitted
09/10/2026, 17:29
General
- Target jaffacakes118_Trojan-Dropper.Win32.Autit.aif.exe
- Size 412KB
- Sample261009-v2thfscs71
- SHA256 c4135530cb9acdd54e3d569d37cb8c630a18d0145a98656face9411c03c3025f
Malware Config
Signatures
- Creates a file in the Startup directory 1 TTPs 1 IoCs
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
- Suspicious use of SetThreadContext 1 IoCs
- UPX packed file 4 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Program crash 1 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-Dropper.Win32.Autit.aif.exe"C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-Dropper.Win32.Autit.aif.exe"1⤵
- Creates a file in the Startup directory
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\cbfzgdec\cbfzgdec.cmdline"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESFF1C.tmp" "c:\Users\Admin\AppData\Local\Temp\cbfzgdec\CSC94D17EA471394E8D965CD4CF51555232.TMP"3⤵
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- System Location Discovery: System Language Discovery
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3828 -s 6403⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3828 -ip 38281⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
RESFF1C.tmp
cbfzgdec.dll
cbfzgdec.pdb
CSC94D17EA471394E8D965CD4CF51555232.TMP
cbfzgdec.0.cs
cbfzgdec.cmdline
memory/3828-24-0x0000000000400000-0x00000000004C9000-memory.dmp
memory/3828-29-0x0000000000400000-0x00000000004C9000-memory.dmp
memory/3828-27-0x0000000000400000-0x00000000004C9000-memory.dmp
memory/4892-16-0x0000000001380000-0x0000000001388000-memory.dmp
memory/4892-18-0x0000000005A50000-0x0000000005ABA000-memory.dmp
memory/4892-19-0x0000000002F80000-0x0000000002F8C000-memory.dmp
memory/4892-22-0x0000000005AC0000-0x0000000005B89000-memory.dmp
memory/4892-23-0x0000000005D70000-0x0000000005E0C000-memory.dmp
memory/4892-17-0x0000000005480000-0x0000000005512000-memory.dmp
memory/4892-0-0x0000000000A60000-0x0000000000ACC000-memory.dmp
memory/4892-1-0x00000000055B0000-0x00000000055C0000-memory.dmp