Analysis
- max time kernel
3s - max time network
102s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
07/01/2024, 19:35
General
- Target a316428effee4f96edee4b7601cfc78c.exe
- Size 512KB
- Sample240107-yazf6scffq
- SHA256 3c6d66ea64e12029bda1fa7c1f9432980342dff406af07f91c12156c4e27220b
Malware Config
Signatures
- Executes dropped EXE 4 IoCs
- AutoIT Executable 11 IoCs
AutoIT scripts compiled to PE executables.
- Drops file in System32 directory 8 IoCs
- Drops file in Windows directory 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Modifies registry class 7 IoCs
- Suspicious behavior: EnumeratesProcesses 16 IoCs
- Suspicious use of FindShellTrayWindow 9 IoCs
- Suspicious use of SendNotifyMessage 9 IoCs
- Suspicious use of WriteProcessMemory 12 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\a316428effee4f96edee4b7601cfc78c.exe"C:\Users\Admin\AppData\Local\Temp\a316428effee4f96edee4b7601cfc78c.exe"1⤵
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\frflvhui.exefrflvhui.exe2⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\ttnebptsjdpvw.exettnebptsjdpvw.exe2⤵
- Executes dropped EXE
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C:\Windows\SysWOW64\caacrhhtiurqzhb.execaacrhhtiurqzhb.exe2⤵
- Executes dropped EXE
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
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C:\Windows\SysWOW64\xglufnyjap.exexglufnyjap.exe2⤵
- Executes dropped EXE
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
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C:\Windows\SysWOW64\frflvhui.exeC:\Windows\system32\frflvhui.exe3⤵
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C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Windows\mydoc.rtf" /o ""2⤵
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
caacrhhtiurqzhb.exe
caacrhhtiurqzhb.exe
caacrhhtiurqzhb.exe
frflvhui.exe
xglufnyjap.exe
xglufnyjap.exe
MsoIrmProtector.doc.exe
MsoIrmProtector.doc.exe
MsoIrmProtector.doc.exe
memory/824-0-0x0000000000400000-0x0000000000496000-memory.dmp
memory/3036-54-0x00007FFF510D0000-0x00007FFF512C5000-memory.dmp
memory/3036-46-0x00007FFF510D0000-0x00007FFF512C5000-memory.dmp
memory/3036-47-0x00007FFF510D0000-0x00007FFF512C5000-memory.dmp
memory/3036-48-0x00007FFF510D0000-0x00007FFF512C5000-memory.dmp
memory/3036-51-0x00007FFF510D0000-0x00007FFF512C5000-memory.dmp
memory/3036-52-0x00007FFF510D0000-0x00007FFF512C5000-memory.dmp
memory/3036-53-0x00007FFF510D0000-0x00007FFF512C5000-memory.dmp
memory/3036-44-0x00007FFF510D0000-0x00007FFF512C5000-memory.dmp
memory/3036-56-0x00007FFF510D0000-0x00007FFF512C5000-memory.dmp
memory/3036-57-0x00007FFF510D0000-0x00007FFF512C5000-memory.dmp
memory/3036-55-0x00007FFF510D0000-0x00007FFF512C5000-memory.dmp
memory/3036-50-0x00007FFF0EFF0000-0x00007FFF0F000000-memory.dmp
memory/3036-49-0x00007FFF510D0000-0x00007FFF512C5000-memory.dmp
memory/3036-45-0x00007FFF510D0000-0x00007FFF512C5000-memory.dmp
memory/3036-41-0x00007FFF510D0000-0x00007FFF512C5000-memory.dmp
memory/3036-40-0x00007FFF11150000-0x00007FFF11160000-memory.dmp
memory/3036-38-0x00007FFF11150000-0x00007FFF11160000-memory.dmp
memory/3036-37-0x00007FFF11150000-0x00007FFF11160000-memory.dmp
memory/3036-58-0x00007FFF0EFF0000-0x00007FFF0F000000-memory.dmp
memory/3036-104-0x00007FFF510D0000-0x00007FFF512C5000-memory.dmp
memory/3036-43-0x00007FFF510D0000-0x00007FFF512C5000-memory.dmp
memory/3036-42-0x00007FFF11150000-0x00007FFF11160000-memory.dmp
memory/3036-39-0x00007FFF11150000-0x00007FFF11160000-memory.dmp
memory/3036-144-0x00007FFF510D0000-0x00007FFF512C5000-memory.dmp
memory/3036-143-0x00007FFF11150000-0x00007FFF11160000-memory.dmp
memory/3036-142-0x00007FFF11150000-0x00007FFF11160000-memory.dmp
memory/3036-141-0x00007FFF11150000-0x00007FFF11160000-memory.dmp
memory/3036-140-0x00007FFF11150000-0x00007FFF11160000-memory.dmp