Analysis
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max time kernel
150s -
max time network
79s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
30/10/2022, 18:35
Static task
static1
Behavioral task
behavioral1
Sample
e80ba5f1892c2aff24395c5a8ec03c73d172aec422545a2de3b6929ca032ca36.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
e80ba5f1892c2aff24395c5a8ec03c73d172aec422545a2de3b6929ca032ca36.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
e80ba5f1892c2aff24395c5a8ec03c73d172aec422545a2de3b6929ca032ca36.exe
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Size
288KB
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MD5
82e885cc80e5ec524622172eeefecdc0
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SHA1
b5a3f52b55072303ae623d4cd36da1892e77271c
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SHA256
e80ba5f1892c2aff24395c5a8ec03c73d172aec422545a2de3b6929ca032ca36
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SHA512
84f6dfc70c70726193133c642919f2415c06795d021985e80e60f8e6b353b276da6374ba6981a6f89ced59e4b2f5132ec43e5dbf8d163b0d6b2e4cdf18d91f07
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SSDEEP
3072:AU0nDvhQdiTyOZAksTCPkix7Fe7dEN8EXgNqf5cTrWi6ei2uiTbtTmH8Fe90p06v:70qiTCbYJFsE0NMCP6wJYj8t/xv
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-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" e80ba5f1892c2aff24395c5a8ec03c73d172aec422545a2de3b6929ca032ca36.exe Set value (int) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" riisu.exe -
Executes dropped EXE 1 IoCs
pid Process 1232 riisu.exe -
Loads dropped DLL 2 IoCs
pid Process 1376 e80ba5f1892c2aff24395c5a8ec03c73d172aec422545a2de3b6929ca032ca36.exe 1376 e80ba5f1892c2aff24395c5a8ec03c73d172aec422545a2de3b6929ca032ca36.exe -
Adds Run key to start application 2 TTPs 54 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /S" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /W" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /h" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /f" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /b" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /l" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /X" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /I" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /M" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /V" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /n" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /K" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /y" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /R" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /p" e80ba5f1892c2aff24395c5a8ec03c73d172aec422545a2de3b6929ca032ca36.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /Y" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /L" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /w" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /p" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /C" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /O" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /i" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /H" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /P" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /J" riisu.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /m" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /g" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /a" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /c" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /A" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /s" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /U" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /v" riisu.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ e80ba5f1892c2aff24395c5a8ec03c73d172aec422545a2de3b6929ca032ca36.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /o" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /e" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /G" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /u" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /r" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /D" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /F" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /x" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /q" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /Z" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /E" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /j" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /t" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /B" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /z" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /T" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /k" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /d" riisu.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riisu = "C:\\Users\\Admin\\riisu.exe /Q" riisu.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 1376 e80ba5f1892c2aff24395c5a8ec03c73d172aec422545a2de3b6929ca032ca36.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe 1232 riisu.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1376 e80ba5f1892c2aff24395c5a8ec03c73d172aec422545a2de3b6929ca032ca36.exe 1232 riisu.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1376 wrote to memory of 1232 1376 e80ba5f1892c2aff24395c5a8ec03c73d172aec422545a2de3b6929ca032ca36.exe 26 PID 1376 wrote to memory of 1232 1376 e80ba5f1892c2aff24395c5a8ec03c73d172aec422545a2de3b6929ca032ca36.exe 26 PID 1376 wrote to memory of 1232 1376 e80ba5f1892c2aff24395c5a8ec03c73d172aec422545a2de3b6929ca032ca36.exe 26 PID 1376 wrote to memory of 1232 1376 e80ba5f1892c2aff24395c5a8ec03c73d172aec422545a2de3b6929ca032ca36.exe 26
Processes
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C:\Users\Admin\AppData\Local\Temp\e80ba5f1892c2aff24395c5a8ec03c73d172aec422545a2de3b6929ca032ca36.exe"C:\Users\Admin\AppData\Local\Temp\e80ba5f1892c2aff24395c5a8ec03c73d172aec422545a2de3b6929ca032ca36.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:1376 -
C:\Users\Admin\riisu.exe"C:\Users\Admin\riisu.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:1232
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
288KB
MD51259752da351c00eebfcd4258c8d06f1
SHA16093525f3c527c8ab8431566b023c603aa809720
SHA2569c276c8e3d66ce64003e413c2fedfe0bc18c7c28705880f9239365bc491abee8
SHA51245467dde030573b90fe6c3cee7678f5de2c300ff5a5fbdfeb62441072c57851ef48e433168083254b9c73eb5b81d0e755cc275f404bee9545a8147c158cdaaa1
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Filesize
288KB
MD51259752da351c00eebfcd4258c8d06f1
SHA16093525f3c527c8ab8431566b023c603aa809720
SHA2569c276c8e3d66ce64003e413c2fedfe0bc18c7c28705880f9239365bc491abee8
SHA51245467dde030573b90fe6c3cee7678f5de2c300ff5a5fbdfeb62441072c57851ef48e433168083254b9c73eb5b81d0e755cc275f404bee9545a8147c158cdaaa1
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Filesize
288KB
MD51259752da351c00eebfcd4258c8d06f1
SHA16093525f3c527c8ab8431566b023c603aa809720
SHA2569c276c8e3d66ce64003e413c2fedfe0bc18c7c28705880f9239365bc491abee8
SHA51245467dde030573b90fe6c3cee7678f5de2c300ff5a5fbdfeb62441072c57851ef48e433168083254b9c73eb5b81d0e755cc275f404bee9545a8147c158cdaaa1
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Filesize
288KB
MD51259752da351c00eebfcd4258c8d06f1
SHA16093525f3c527c8ab8431566b023c603aa809720
SHA2569c276c8e3d66ce64003e413c2fedfe0bc18c7c28705880f9239365bc491abee8
SHA51245467dde030573b90fe6c3cee7678f5de2c300ff5a5fbdfeb62441072c57851ef48e433168083254b9c73eb5b81d0e755cc275f404bee9545a8147c158cdaaa1