Analysis
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max time kernel
151s -
max time network
49s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
20/10/2022, 01:48
Static task
static1
Behavioral task
behavioral1
Sample
7d39687300a4e509f6a623ce3b72e4b8ec3dfb3b54cf6ac5f390d8253134705b.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
7d39687300a4e509f6a623ce3b72e4b8ec3dfb3b54cf6ac5f390d8253134705b.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
7d39687300a4e509f6a623ce3b72e4b8ec3dfb3b54cf6ac5f390d8253134705b.exe
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Size
244KB
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MD5
807bf916f297d31f8dfa3c6ce294aa20
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SHA1
0d583cd5b2469cea9c663630012a1997b842bc15
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SHA256
7d39687300a4e509f6a623ce3b72e4b8ec3dfb3b54cf6ac5f390d8253134705b
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SHA512
ba47c59c5161a9800caf0794113647abc53baa4a7f2fc3a0a1734ad9bc2fad8294f08621a85d48b2a451569967986629ebccd0d05f69bd88d8c949d14591ecac
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SSDEEP
3072:wjvM4AOx/dMcy1imsW7A0g3XDYHYTvZm3ov5Q4/cMIVH5bEvhSSqeLSqnjYIb:q050Fy1imdJgc4s2QRhH5IXV
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" riuekeg.exe Set value (int) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 7d39687300a4e509f6a623ce3b72e4b8ec3dfb3b54cf6ac5f390d8253134705b.exe -
Executes dropped EXE 1 IoCs
pid Process 944 riuekeg.exe -
Loads dropped DLL 2 IoCs
pid Process 1048 7d39687300a4e509f6a623ce3b72e4b8ec3dfb3b54cf6ac5f390d8253134705b.exe 1048 7d39687300a4e509f6a623ce3b72e4b8ec3dfb3b54cf6ac5f390d8253134705b.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riuekeg = "C:\\Users\\Admin\\riuekeg.exe /l" riuekeg.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riuekeg = "C:\\Users\\Admin\\riuekeg.exe /d" riuekeg.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riuekeg = "C:\\Users\\Admin\\riuekeg.exe /o" riuekeg.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riuekeg = "C:\\Users\\Admin\\riuekeg.exe /r" riuekeg.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riuekeg = "C:\\Users\\Admin\\riuekeg.exe /m" 7d39687300a4e509f6a623ce3b72e4b8ec3dfb3b54cf6ac5f390d8253134705b.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riuekeg = "C:\\Users\\Admin\\riuekeg.exe /s" riuekeg.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riuekeg = "C:\\Users\\Admin\\riuekeg.exe /p" riuekeg.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riuekeg = "C:\\Users\\Admin\\riuekeg.exe /c" riuekeg.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riuekeg = "C:\\Users\\Admin\\riuekeg.exe /j" riuekeg.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riuekeg = "C:\\Users\\Admin\\riuekeg.exe /v" riuekeg.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riuekeg = "C:\\Users\\Admin\\riuekeg.exe /m" riuekeg.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riuekeg = "C:\\Users\\Admin\\riuekeg.exe /i" riuekeg.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riuekeg = "C:\\Users\\Admin\\riuekeg.exe /k" riuekeg.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riuekeg = "C:\\Users\\Admin\\riuekeg.exe /u" riuekeg.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riuekeg = "C:\\Users\\Admin\\riuekeg.exe /t" riuekeg.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riuekeg = "C:\\Users\\Admin\\riuekeg.exe /n" riuekeg.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riuekeg = "C:\\Users\\Admin\\riuekeg.exe /y" riuekeg.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riuekeg = "C:\\Users\\Admin\\riuekeg.exe /z" riuekeg.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riuekeg = "C:\\Users\\Admin\\riuekeg.exe /w" riuekeg.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 7d39687300a4e509f6a623ce3b72e4b8ec3dfb3b54cf6ac5f390d8253134705b.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riuekeg = "C:\\Users\\Admin\\riuekeg.exe /h" riuekeg.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riuekeg = "C:\\Users\\Admin\\riuekeg.exe /f" riuekeg.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riuekeg = "C:\\Users\\Admin\\riuekeg.exe /g" riuekeg.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riuekeg = "C:\\Users\\Admin\\riuekeg.exe /a" riuekeg.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ riuekeg.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riuekeg = "C:\\Users\\Admin\\riuekeg.exe /x" riuekeg.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riuekeg = "C:\\Users\\Admin\\riuekeg.exe /q" riuekeg.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riuekeg = "C:\\Users\\Admin\\riuekeg.exe /b" riuekeg.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\riuekeg = "C:\\Users\\Admin\\riuekeg.exe /e" riuekeg.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 1048 7d39687300a4e509f6a623ce3b72e4b8ec3dfb3b54cf6ac5f390d8253134705b.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe 944 riuekeg.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1048 7d39687300a4e509f6a623ce3b72e4b8ec3dfb3b54cf6ac5f390d8253134705b.exe 944 riuekeg.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1048 wrote to memory of 944 1048 7d39687300a4e509f6a623ce3b72e4b8ec3dfb3b54cf6ac5f390d8253134705b.exe 27 PID 1048 wrote to memory of 944 1048 7d39687300a4e509f6a623ce3b72e4b8ec3dfb3b54cf6ac5f390d8253134705b.exe 27 PID 1048 wrote to memory of 944 1048 7d39687300a4e509f6a623ce3b72e4b8ec3dfb3b54cf6ac5f390d8253134705b.exe 27 PID 1048 wrote to memory of 944 1048 7d39687300a4e509f6a623ce3b72e4b8ec3dfb3b54cf6ac5f390d8253134705b.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\7d39687300a4e509f6a623ce3b72e4b8ec3dfb3b54cf6ac5f390d8253134705b.exe"C:\Users\Admin\AppData\Local\Temp\7d39687300a4e509f6a623ce3b72e4b8ec3dfb3b54cf6ac5f390d8253134705b.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:1048 -
C:\Users\Admin\riuekeg.exe"C:\Users\Admin\riuekeg.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:944
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
244KB
MD51a74773d98ee1e261a0795d44050cdd8
SHA1e8f864b126ca43964289aba672f699fec4f66055
SHA25637be23828a69c504496223cb0680a376175d16eeec5b7622072e08777add42a5
SHA5128994606150973625d1d57bf84ae9b9880c11086883e99f667fe07df40b36b831df0e6e6709bd990f10b7af839cacd24d7dbc309f4082bbf5039c4a2f89f4ada2
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Filesize
244KB
MD51a74773d98ee1e261a0795d44050cdd8
SHA1e8f864b126ca43964289aba672f699fec4f66055
SHA25637be23828a69c504496223cb0680a376175d16eeec5b7622072e08777add42a5
SHA5128994606150973625d1d57bf84ae9b9880c11086883e99f667fe07df40b36b831df0e6e6709bd990f10b7af839cacd24d7dbc309f4082bbf5039c4a2f89f4ada2
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Filesize
244KB
MD51a74773d98ee1e261a0795d44050cdd8
SHA1e8f864b126ca43964289aba672f699fec4f66055
SHA25637be23828a69c504496223cb0680a376175d16eeec5b7622072e08777add42a5
SHA5128994606150973625d1d57bf84ae9b9880c11086883e99f667fe07df40b36b831df0e6e6709bd990f10b7af839cacd24d7dbc309f4082bbf5039c4a2f89f4ada2
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Filesize
244KB
MD51a74773d98ee1e261a0795d44050cdd8
SHA1e8f864b126ca43964289aba672f699fec4f66055
SHA25637be23828a69c504496223cb0680a376175d16eeec5b7622072e08777add42a5
SHA5128994606150973625d1d57bf84ae9b9880c11086883e99f667fe07df40b36b831df0e6e6709bd990f10b7af839cacd24d7dbc309f4082bbf5039c4a2f89f4ada2