Analysis
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max time kernel
138s -
max time network
152s -
platform
windows11-21h2_x64 -
resource
win11-20231215-en -
resource tags
arch:x64arch:x86image:win11-20231215-enlocale:en-usos:windows11-21h2-x64system -
submitted
23/12/2023, 13:42
Behavioral task
behavioral1
Sample
FantaUD.exe
Resource
win11-20231215-en
General
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Target
FantaUD.exe
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Size
6.2MB
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MD5
a3f60cf65f209f17ba1630c6aef48d6b
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SHA1
6ccd6fab394659e68ccdc4143645958af7a258ab
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SHA256
7a6cbf83e9314f737085966c78d7dab8c1bfc067fe55d35c4d33e4cd0b39f3e4
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SHA512
969f05da9a2131aecc0a70014f9c7fcca946df93cad9c650898842bed80b70a699a780469a7eb999a6bb84ce64e1b73187a1e03f9671a99f293ed4f7b117efdb
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SSDEEP
196608:pJrhrwP8JHut+KQUgdT/u6hYnQUToloFaw+:pJrRJHut/QUgp/uyU7j
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 4076 SOLUTION.EXE -
resource yara_rule behavioral1/memory/1976-0-0x0000000000DA0000-0x0000000001802000-memory.dmp vmprotect behavioral1/memory/1976-4-0x0000000000DA0000-0x0000000001802000-memory.dmp vmprotect behavioral1/memory/1976-10-0x0000000000DA0000-0x0000000001802000-memory.dmp vmprotect behavioral1/memory/1976-20-0x0000000000DA0000-0x0000000001802000-memory.dmp vmprotect -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 1976 FantaUD.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
pid pid_target Process procid_target 3652 1976 WerFault.exe 77 -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1976 FantaUD.exe 1976 FantaUD.exe 1976 FantaUD.exe 1976 FantaUD.exe -
Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 1976 wrote to memory of 4076 1976 FantaUD.exe 78 PID 1976 wrote to memory of 4076 1976 FantaUD.exe 78
Processes
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C:\Users\Admin\AppData\Local\Temp\FantaUD.exe"C:\Users\Admin\AppData\Local\Temp\FantaUD.exe"1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1976 -
C:\Users\Admin\AppData\Local\Temp\SOLUTION.EXE"C:\Users\Admin\AppData\Local\Temp\SOLUTION.EXE"2⤵
- Executes dropped EXE
PID:4076
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1976 -s 8642⤵
- Program crash
PID:3652
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1976 -ip 19761⤵PID:3556
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
519KB
MD5e226e3451f34e5c86837bc08f3733a35
SHA1a745bba5ff6bb093056954ed720289dc257a57f9
SHA2568fb2681dc379493786be8d2191c7d9b06c50995d81de0f6d80767a239e003edb
SHA512fa57d8541c6856eee8faaf475ab54adb969013d88515705668e4567df6d2182fdffa45dbc5212c11b52e13b74d4aaaddf3c7605378d3cc959589cca51dec7738