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Analysis
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max time kernel
185s -
max time network
77s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
02/12/2022, 19:21
Static task
static1
Behavioral task
behavioral1
Sample
4301f2da20e2192cb3a00112729b682ddcf25ea440bfc722c3bfb1c4374ddd6d.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
4301f2da20e2192cb3a00112729b682ddcf25ea440bfc722c3bfb1c4374ddd6d.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
4301f2da20e2192cb3a00112729b682ddcf25ea440bfc722c3bfb1c4374ddd6d.exe
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Size
312KB
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MD5
84d65de2ca814f876895c8f14b5da4ae
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SHA1
e370b58654dac7dc240ed5e9623ff23383978318
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SHA256
4301f2da20e2192cb3a00112729b682ddcf25ea440bfc722c3bfb1c4374ddd6d
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SHA512
f4f5df054712844b9319bce3d68aeb00e3a2bd62c49b3f4d66b3f0963c58aae976ecbc1b1c86cefe239c45678e808d45b324410083d461e0987d91c291aa4282
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SSDEEP
6144:MX7+TAvTlIpr1f+XqO5aOmSGFDbeOjLPmUagn:++UTlIB1f+55SpNPmU/n
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" 4301f2da20e2192cb3a00112729b682ddcf25ea440bfc722c3bfb1c4374ddd6d.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" kuaunov.exe -
Executes dropped EXE 1 IoCs
pid Process 1540 kuaunov.exe -
Loads dropped DLL 2 IoCs
pid Process 1696 4301f2da20e2192cb3a00112729b682ddcf25ea440bfc722c3bfb1c4374ddd6d.exe 1696 4301f2da20e2192cb3a00112729b682ddcf25ea440bfc722c3bfb1c4374ddd6d.exe -
Adds Run key to start application 2 TTPs 28 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 4301f2da20e2192cb3a00112729b682ddcf25ea440bfc722c3bfb1c4374ddd6d.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuaunov = "C:\\Users\\Admin\\kuaunov.exe /i" 4301f2da20e2192cb3a00112729b682ddcf25ea440bfc722c3bfb1c4374ddd6d.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuaunov = "C:\\Users\\Admin\\kuaunov.exe /r" kuaunov.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuaunov = "C:\\Users\\Admin\\kuaunov.exe /j" kuaunov.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuaunov = "C:\\Users\\Admin\\kuaunov.exe /x" kuaunov.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuaunov = "C:\\Users\\Admin\\kuaunov.exe /m" kuaunov.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuaunov = "C:\\Users\\Admin\\kuaunov.exe /a" kuaunov.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuaunov = "C:\\Users\\Admin\\kuaunov.exe /d" kuaunov.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuaunov = "C:\\Users\\Admin\\kuaunov.exe /o" kuaunov.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuaunov = "C:\\Users\\Admin\\kuaunov.exe /g" kuaunov.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ kuaunov.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuaunov = "C:\\Users\\Admin\\kuaunov.exe /e" kuaunov.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuaunov = "C:\\Users\\Admin\\kuaunov.exe /t" kuaunov.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuaunov = "C:\\Users\\Admin\\kuaunov.exe /w" kuaunov.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuaunov = "C:\\Users\\Admin\\kuaunov.exe /l" kuaunov.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuaunov = "C:\\Users\\Admin\\kuaunov.exe /f" kuaunov.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuaunov = "C:\\Users\\Admin\\kuaunov.exe /c" kuaunov.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuaunov = "C:\\Users\\Admin\\kuaunov.exe /p" kuaunov.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuaunov = "C:\\Users\\Admin\\kuaunov.exe /q" kuaunov.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuaunov = "C:\\Users\\Admin\\kuaunov.exe /h" kuaunov.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuaunov = "C:\\Users\\Admin\\kuaunov.exe /b" kuaunov.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuaunov = "C:\\Users\\Admin\\kuaunov.exe /z" kuaunov.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuaunov = "C:\\Users\\Admin\\kuaunov.exe /v" kuaunov.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuaunov = "C:\\Users\\Admin\\kuaunov.exe /k" kuaunov.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuaunov = "C:\\Users\\Admin\\kuaunov.exe /n" kuaunov.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuaunov = "C:\\Users\\Admin\\kuaunov.exe /y" kuaunov.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuaunov = "C:\\Users\\Admin\\kuaunov.exe /i" kuaunov.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\kuaunov = "C:\\Users\\Admin\\kuaunov.exe /u" kuaunov.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 1696 4301f2da20e2192cb3a00112729b682ddcf25ea440bfc722c3bfb1c4374ddd6d.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe 1540 kuaunov.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1696 4301f2da20e2192cb3a00112729b682ddcf25ea440bfc722c3bfb1c4374ddd6d.exe 1540 kuaunov.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1696 wrote to memory of 1540 1696 4301f2da20e2192cb3a00112729b682ddcf25ea440bfc722c3bfb1c4374ddd6d.exe 27 PID 1696 wrote to memory of 1540 1696 4301f2da20e2192cb3a00112729b682ddcf25ea440bfc722c3bfb1c4374ddd6d.exe 27 PID 1696 wrote to memory of 1540 1696 4301f2da20e2192cb3a00112729b682ddcf25ea440bfc722c3bfb1c4374ddd6d.exe 27 PID 1696 wrote to memory of 1540 1696 4301f2da20e2192cb3a00112729b682ddcf25ea440bfc722c3bfb1c4374ddd6d.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\4301f2da20e2192cb3a00112729b682ddcf25ea440bfc722c3bfb1c4374ddd6d.exe"C:\Users\Admin\AppData\Local\Temp\4301f2da20e2192cb3a00112729b682ddcf25ea440bfc722c3bfb1c4374ddd6d.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:1696 -
C:\Users\Admin\kuaunov.exe"C:\Users\Admin\kuaunov.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:1540
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
312KB
MD559c8ad8fa917c29e0e221aeb84988d89
SHA12e0dfd16880377c521f300307acd864faab3337d
SHA2562601a821d821d1bc5ee29442f11b1b686d4e8cc5cbcfd5a7db4bd402dcbfc530
SHA5124d21ab32fe248efdcf1d82a51a988661594767eaf1e985ade488775199977de298a296cbf9f8fe949075b9db8c6307d1afd04a7bf4935501145fbbcaa54d4e82
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Filesize
312KB
MD559c8ad8fa917c29e0e221aeb84988d89
SHA12e0dfd16880377c521f300307acd864faab3337d
SHA2562601a821d821d1bc5ee29442f11b1b686d4e8cc5cbcfd5a7db4bd402dcbfc530
SHA5124d21ab32fe248efdcf1d82a51a988661594767eaf1e985ade488775199977de298a296cbf9f8fe949075b9db8c6307d1afd04a7bf4935501145fbbcaa54d4e82
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Filesize
312KB
MD559c8ad8fa917c29e0e221aeb84988d89
SHA12e0dfd16880377c521f300307acd864faab3337d
SHA2562601a821d821d1bc5ee29442f11b1b686d4e8cc5cbcfd5a7db4bd402dcbfc530
SHA5124d21ab32fe248efdcf1d82a51a988661594767eaf1e985ade488775199977de298a296cbf9f8fe949075b9db8c6307d1afd04a7bf4935501145fbbcaa54d4e82
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Filesize
312KB
MD559c8ad8fa917c29e0e221aeb84988d89
SHA12e0dfd16880377c521f300307acd864faab3337d
SHA2562601a821d821d1bc5ee29442f11b1b686d4e8cc5cbcfd5a7db4bd402dcbfc530
SHA5124d21ab32fe248efdcf1d82a51a988661594767eaf1e985ade488775199977de298a296cbf9f8fe949075b9db8c6307d1afd04a7bf4935501145fbbcaa54d4e82