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Analysis
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max time kernel
150s -
max time network
83s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
19/09/2022, 00:56
Static task
static1
Behavioral task
behavioral1
Sample
21b48bb4ab262d64317ee30d7e254cda75d1fd6c6074bd2da96b2cf94108035f.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
21b48bb4ab262d64317ee30d7e254cda75d1fd6c6074bd2da96b2cf94108035f.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
21b48bb4ab262d64317ee30d7e254cda75d1fd6c6074bd2da96b2cf94108035f.exe
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Size
124KB
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MD5
389d053e52149db942a14a486a5ec7c1
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SHA1
51a320c63d408e72a21e92fbdfa804eab8f1daf3
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SHA256
21b48bb4ab262d64317ee30d7e254cda75d1fd6c6074bd2da96b2cf94108035f
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SHA512
0aa34145597fc80c50ea9ab570c0b34ea629f067a6e71bc7d945d5301fe54a761e6ce00bc5f1110f1d78ea85e01cdda32457e1829c6d9aa7cae171d9f5d7cdff
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SSDEEP
1536:txEchwRP3uBxeDtMYHa27J14ltxporZ45igHNeG0hQ:/EchwRfkeV6gJ1uCt45VgQ
Score
10/10
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 21b48bb4ab262d64317ee30d7e254cda75d1fd6c6074bd2da96b2cf94108035f.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" fuiis.exe -
Executes dropped EXE 1 IoCs
pid Process 1716 fuiis.exe -
Loads dropped DLL 2 IoCs
pid Process 1764 21b48bb4ab262d64317ee30d7e254cda75d1fd6c6074bd2da96b2cf94108035f.exe 1764 21b48bb4ab262d64317ee30d7e254cda75d1fd6c6074bd2da96b2cf94108035f.exe -
Adds Run key to start application 2 TTPs 53 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /E" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /h" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /K" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /x" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /o" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /R" fuiis.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 21b48bb4ab262d64317ee30d7e254cda75d1fd6c6074bd2da96b2cf94108035f.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /i" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /D" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /T" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /v" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /d" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /W" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /X" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /k" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /f" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /u" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /B" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /b" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /e" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /r" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /Y" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /P" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /J" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /c" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /s" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /a" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /S" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /m" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /l" 21b48bb4ab262d64317ee30d7e254cda75d1fd6c6074bd2da96b2cf94108035f.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /q" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /y" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /I" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /p" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /l" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /A" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /V" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /w" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /C" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /t" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /M" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /g" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /F" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /Z" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /O" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /U" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /j" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /n" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /N" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /Q" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /z" fuiis.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuiis = "C:\\Users\\Admin\\fuiis.exe /H" fuiis.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1764 21b48bb4ab262d64317ee30d7e254cda75d1fd6c6074bd2da96b2cf94108035f.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe 1716 fuiis.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1764 21b48bb4ab262d64317ee30d7e254cda75d1fd6c6074bd2da96b2cf94108035f.exe 1716 fuiis.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1764 wrote to memory of 1716 1764 21b48bb4ab262d64317ee30d7e254cda75d1fd6c6074bd2da96b2cf94108035f.exe 28 PID 1764 wrote to memory of 1716 1764 21b48bb4ab262d64317ee30d7e254cda75d1fd6c6074bd2da96b2cf94108035f.exe 28 PID 1764 wrote to memory of 1716 1764 21b48bb4ab262d64317ee30d7e254cda75d1fd6c6074bd2da96b2cf94108035f.exe 28 PID 1764 wrote to memory of 1716 1764 21b48bb4ab262d64317ee30d7e254cda75d1fd6c6074bd2da96b2cf94108035f.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\21b48bb4ab262d64317ee30d7e254cda75d1fd6c6074bd2da96b2cf94108035f.exe"C:\Users\Admin\AppData\Local\Temp\21b48bb4ab262d64317ee30d7e254cda75d1fd6c6074bd2da96b2cf94108035f.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1764 -
C:\Users\Admin\fuiis.exe"C:\Users\Admin\fuiis.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1716
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
124KB
MD5e4fb4e69774d9fe37aaa37056e8ea90d
SHA138e8eacbd16c6a3299ce6cd83815c4137e23f800
SHA256aba629a14900d13559455a81a1b069769dad4a45d88ffd31b8a269f82d9f6358
SHA5129d291be3909322b7cde9939cf9e5adbb8e8f33b00ef1358cade2ec9f00264d63630bf7177fc7670c35e72042da3a93483f3d29f67cb7166d3e60c1cfa9a5df3e
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Filesize
124KB
MD5e4fb4e69774d9fe37aaa37056e8ea90d
SHA138e8eacbd16c6a3299ce6cd83815c4137e23f800
SHA256aba629a14900d13559455a81a1b069769dad4a45d88ffd31b8a269f82d9f6358
SHA5129d291be3909322b7cde9939cf9e5adbb8e8f33b00ef1358cade2ec9f00264d63630bf7177fc7670c35e72042da3a93483f3d29f67cb7166d3e60c1cfa9a5df3e
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Filesize
124KB
MD5e4fb4e69774d9fe37aaa37056e8ea90d
SHA138e8eacbd16c6a3299ce6cd83815c4137e23f800
SHA256aba629a14900d13559455a81a1b069769dad4a45d88ffd31b8a269f82d9f6358
SHA5129d291be3909322b7cde9939cf9e5adbb8e8f33b00ef1358cade2ec9f00264d63630bf7177fc7670c35e72042da3a93483f3d29f67cb7166d3e60c1cfa9a5df3e
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Filesize
124KB
MD5e4fb4e69774d9fe37aaa37056e8ea90d
SHA138e8eacbd16c6a3299ce6cd83815c4137e23f800
SHA256aba629a14900d13559455a81a1b069769dad4a45d88ffd31b8a269f82d9f6358
SHA5129d291be3909322b7cde9939cf9e5adbb8e8f33b00ef1358cade2ec9f00264d63630bf7177fc7670c35e72042da3a93483f3d29f67cb7166d3e60c1cfa9a5df3e