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Analysis
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max time kernel
122s -
max time network
170s -
platform
windows10-1703_x64 -
resource
win10-20230915-en -
resource tags
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submitted
20/10/2023, 10:06
General
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Target
Signal6.9.6.exe
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Size
114.5MB
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MD5
f6d697fd79c8510c929350efffa8543b
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SHA1
36f7477cb84c450847d6bf0cc9842228194bf56a
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SHA256
99ad30a4c3147042b2929585183736bc1135558c7efb2c5d6bc6c33d850ac301
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SHA512
5be24571406c2fc1c7dd3cfabba9e05a1276552dbc3d6fb1488c02c8daea0d46ee7b005f38b67eff67f0ee1c49f7c5fcae0cdc80d1c85a9f38ed81383e89d023
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SSDEEP
3145728:VtGIPHBudiuFrz8WWKRx4YcmyDqDkU2inxwMGZJ/w0EhPNn:VxQr1znWKRx4Bm7rxjG7wX
Malware Config
Signatures
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FatalRat
FatalRat is a modular infostealer family written in C++ first appearing in June 2021.
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Gh0st RAT payload 7 IoCs
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Gh0strat
Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.
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Fatal Rat payload 1 IoCs
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
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Downloads MZ/PE file
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Executes dropped EXE 4 IoCs
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Identifies Wine through registry keys 2 TTPs 1 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
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UPX packed file 13 IoCs
Detects executables packed with UPX/modified UPX open source packer.
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VMProtect packed file 6 IoCs
Detects executables packed with VMProtect commercial packer.
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Adds Run key to start application 2 TTPs 2 IoCs
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Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
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Suspicious use of SetThreadContext 2 IoCs
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Drops file in Program Files directory 64 IoCs
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Drops file in Windows directory 4 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
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Modifies registry class 1 IoCs
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
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Suspicious use of SetWindowsHookEx 6 IoCs
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Suspicious use of WriteProcessMemory 20 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Signal6.9.6.exe"C:\Users\Admin\AppData\Local\Temp\Signal6.9.6.exe"1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\a3.exe"C:\Program Files (x86)\a3.exe"2⤵
- Executes dropped EXE
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵
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C:\Users\Public\Documents\123\PTvrst.exe"C:\Users\Public\Documents\123\PTvrst.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Executes dropped EXE
- Identifies Wine through registry keys
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\WINDOWS\DNomb\spolsvt.exeC:\WINDOWS\DNomb\spolsvt.exe2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Public\Documents\t\spolsvt.exeC:\Users\Public\Documents\t\spolsvt.exe3⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
5.6MB
MD50481d5db958410e104c3ec077eeb6b5a
SHA12b52d36fa7feed40fd6e27749aa164b48a615f75
SHA256c29eb3ea929319a884bb8061faf36e855d93f44ba1362441d5fa34f70613181a
SHA512af6bcd124350e3f669b71c349f31c44fef8b1047ff101638057ea349ea5fe9db518f1a3dcbac1d72a8ce918de0b40c753adc15fbc79558bc41126766ee39b4ed
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Filesize
5.6MB
MD50481d5db958410e104c3ec077eeb6b5a
SHA12b52d36fa7feed40fd6e27749aa164b48a615f75
SHA256c29eb3ea929319a884bb8061faf36e855d93f44ba1362441d5fa34f70613181a
SHA512af6bcd124350e3f669b71c349f31c44fef8b1047ff101638057ea349ea5fe9db518f1a3dcbac1d72a8ce918de0b40c753adc15fbc79558bc41126766ee39b4ed
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Filesize
1.2MB
MD5d22cfb5bfaeb1503b12b07e53ef0a149
SHA18ea2c85e363f551a159fabd65377affed4e417a1
SHA256260464fb05210cfb30ef7a12d568f75eb781634b251d958cae8911948f6ca360
SHA512151024cb2960b1ee485ded7ccbb753fe368a93fda5699af72e568667fa54bfb0d1732444e7b60efaab6d372204157cdb6abbf8862d0e89d612dd963342215e45
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Filesize
1.2MB
MD5d22cfb5bfaeb1503b12b07e53ef0a149
SHA18ea2c85e363f551a159fabd65377affed4e417a1
SHA256260464fb05210cfb30ef7a12d568f75eb781634b251d958cae8911948f6ca360
SHA512151024cb2960b1ee485ded7ccbb753fe368a93fda5699af72e568667fa54bfb0d1732444e7b60efaab6d372204157cdb6abbf8862d0e89d612dd963342215e45
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Filesize
16KB
MD5cdce4713e784ae069d73723034a957ff
SHA19a393a6bab6568f1a774fb753353223f11367e09
SHA256b29e48102ecb3d3614e8980a8b8cc63dd2b993c6346f466479244ec2b47b69d8
SHA5120a3a59a305cc2a6fad4e1315b0bcc5a4129595dfe1e8b703363fa02528d2d7c48d3fd22d365708be84a5557cf1916873df9563c454732f93f94a66e7e3b9fb0f
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Filesize
16KB
MD5cdce4713e784ae069d73723034a957ff
SHA19a393a6bab6568f1a774fb753353223f11367e09
SHA256b29e48102ecb3d3614e8980a8b8cc63dd2b993c6346f466479244ec2b47b69d8
SHA5120a3a59a305cc2a6fad4e1315b0bcc5a4129595dfe1e8b703363fa02528d2d7c48d3fd22d365708be84a5557cf1916873df9563c454732f93f94a66e7e3b9fb0f
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Filesize
488KB
MD5b080a7a33830f264ce71c2d4fc6cbed5
SHA13e2ac32e40441a059f24cb1bec27c1ef533641ae
SHA256490acedca10ec4e45ca5cc26fcaf49f40358ae3edd413597cecccaab801ff982
SHA5122d424f0901af4d787aaa2f8319de174ef3b386848bca3e72279f567d329afc570007680f54b551f5072c996a7323062ba1aaa3a04a54786dc6791660587f9c6b
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Filesize
9KB
MD5523d5c39f9d8d2375c3df68251fa2249
SHA1d4ed365c44bec9246fc1a65a32a7791792647a10
SHA25620e3dc90a3e83b6202e2a7f4603b60e5e859639cb68693426c400b13aaeabd78
SHA512526e1bba30d03f1ac177c6ab7409187a730969c429cebef15da68ffcf44b3b93227781eebc827b2f7a0fa17c391e00a0e532263fd0167aeaeb0456f96cfe3ae4
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Filesize
9KB
MD5523d5c39f9d8d2375c3df68251fa2249
SHA1d4ed365c44bec9246fc1a65a32a7791792647a10
SHA25620e3dc90a3e83b6202e2a7f4603b60e5e859639cb68693426c400b13aaeabd78
SHA512526e1bba30d03f1ac177c6ab7409187a730969c429cebef15da68ffcf44b3b93227781eebc827b2f7a0fa17c391e00a0e532263fd0167aeaeb0456f96cfe3ae4
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Filesize
720KB
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Filesize
720KB
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Filesize
720KB
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Filesize
720KB
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Filesize
4KB
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Filesize
4KB
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Filesize
2.6MB
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Filesize
2.6MB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
-
Filesize
4KB
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Filesize
4KB
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Filesize
4KB
-
Filesize
4KB
-
Filesize
4KB
-
Filesize
4KB
-
Filesize
4KB
-
Filesize
4KB
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Filesize
8KB
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Filesize
4KB
-
Filesize
4KB
-
Filesize
4KB
-
Filesize
8KB
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Filesize
8KB
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Filesize
4KB
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Filesize
2.6MB
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Filesize
1.1MB
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Filesize
1.1MB
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Filesize
1.1MB
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Filesize
1.1MB
-
Filesize
1.1MB
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Filesize
1.1MB
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Filesize
4KB
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Filesize
9.9MB
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Filesize
4KB
-
Filesize
9.9MB
-
Filesize
9.9MB
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Filesize
4KB
-
Filesize
4KB
-
Filesize
4KB
-
Filesize
9.9MB
-
Filesize
4KB
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Filesize
4KB
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Filesize
192KB
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Filesize
1.3MB
-
Filesize
192KB
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Filesize
192KB
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Filesize
192KB
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Filesize
1.3MB
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Filesize
1.3MB
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Filesize
168KB
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Filesize
1.3MB
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Filesize
1.3MB
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Filesize
72KB
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Filesize
72KB
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Filesize
72KB
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Filesize
72KB