Analysis
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max time kernel
151s -
max time network
57s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
02-10-2022 15:35
Static task
static1
Behavioral task
behavioral1
Sample
b52a9850eede739751b2ebeaf9cbb61998141ae830077df3bc8511d8535c8876.exe
Resource
win7-20220901-en
windows7-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
b52a9850eede739751b2ebeaf9cbb61998141ae830077df3bc8511d8535c8876.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
3 signatures
150 seconds
General
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Target
b52a9850eede739751b2ebeaf9cbb61998141ae830077df3bc8511d8535c8876.exe
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Size
244KB
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MD5
768b5a7dc99623a905ae52879de827fd
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SHA1
68cffc71f99086c67a14bc7dc0f5379c42fc4d80
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SHA256
b52a9850eede739751b2ebeaf9cbb61998141ae830077df3bc8511d8535c8876
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SHA512
1c5d4307fc6cb8540af9ef88c88c1b7fd2e5c3fc40cb0f6a92a18235356d2ef1927dcfa6f06762c735cd363cccac211d43c9ac8a5ff5ce3addb0647568dced01
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SSDEEP
6144:QBjwaV7AOiMY+ezjcFOxUPrGbj13GIMHb1M/oiU:QxdGlljcFOxkrGbj13GIMHb1+
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" b52a9850eede739751b2ebeaf9cbb61998141ae830077df3bc8511d8535c8876.exe Set value (int) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" yhxel.exe -
Executes dropped EXE 1 IoCs
pid Process 1036 yhxel.exe -
Loads dropped DLL 2 IoCs
pid Process 1204 b52a9850eede739751b2ebeaf9cbb61998141ae830077df3bc8511d8535c8876.exe 1204 b52a9850eede739751b2ebeaf9cbb61998141ae830077df3bc8511d8535c8876.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\yhxel = "C:\\Users\\Admin\\yhxel.exe /i" yhxel.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yhxel = "C:\\Users\\Admin\\yhxel.exe /r" yhxel.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yhxel = "C:\\Users\\Admin\\yhxel.exe /e" yhxel.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yhxel = "C:\\Users\\Admin\\yhxel.exe /x" yhxel.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ yhxel.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yhxel = "C:\\Users\\Admin\\yhxel.exe /p" yhxel.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yhxel = "C:\\Users\\Admin\\yhxel.exe /s" yhxel.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yhxel = "C:\\Users\\Admin\\yhxel.exe /n" yhxel.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yhxel = "C:\\Users\\Admin\\yhxel.exe /a" yhxel.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yhxel = "C:\\Users\\Admin\\yhxel.exe /d" b52a9850eede739751b2ebeaf9cbb61998141ae830077df3bc8511d8535c8876.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yhxel = "C:\\Users\\Admin\\yhxel.exe /b" yhxel.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yhxel = "C:\\Users\\Admin\\yhxel.exe /u" yhxel.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yhxel = "C:\\Users\\Admin\\yhxel.exe /k" yhxel.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ b52a9850eede739751b2ebeaf9cbb61998141ae830077df3bc8511d8535c8876.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yhxel = "C:\\Users\\Admin\\yhxel.exe /j" yhxel.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yhxel = "C:\\Users\\Admin\\yhxel.exe /m" yhxel.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yhxel = "C:\\Users\\Admin\\yhxel.exe /q" yhxel.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yhxel = "C:\\Users\\Admin\\yhxel.exe /z" yhxel.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yhxel = "C:\\Users\\Admin\\yhxel.exe /w" yhxel.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yhxel = "C:\\Users\\Admin\\yhxel.exe /f" yhxel.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yhxel = "C:\\Users\\Admin\\yhxel.exe /c" yhxel.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yhxel = "C:\\Users\\Admin\\yhxel.exe /h" yhxel.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yhxel = "C:\\Users\\Admin\\yhxel.exe /g" yhxel.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yhxel = "C:\\Users\\Admin\\yhxel.exe /o" yhxel.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yhxel = "C:\\Users\\Admin\\yhxel.exe /y" yhxel.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yhxel = "C:\\Users\\Admin\\yhxel.exe /d" yhxel.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yhxel = "C:\\Users\\Admin\\yhxel.exe /l" yhxel.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yhxel = "C:\\Users\\Admin\\yhxel.exe /v" yhxel.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\yhxel = "C:\\Users\\Admin\\yhxel.exe /t" yhxel.exe -
Maps connected drives based on registry 3 TTPs 4 IoCs
Disk information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum b52a9850eede739751b2ebeaf9cbb61998141ae830077df3bc8511d8535c8876.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 b52a9850eede739751b2ebeaf9cbb61998141ae830077df3bc8511d8535c8876.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum yhxel.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 yhxel.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 1204 b52a9850eede739751b2ebeaf9cbb61998141ae830077df3bc8511d8535c8876.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe 1036 yhxel.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1204 b52a9850eede739751b2ebeaf9cbb61998141ae830077df3bc8511d8535c8876.exe 1036 yhxel.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1204 wrote to memory of 1036 1204 b52a9850eede739751b2ebeaf9cbb61998141ae830077df3bc8511d8535c8876.exe 27 PID 1204 wrote to memory of 1036 1204 b52a9850eede739751b2ebeaf9cbb61998141ae830077df3bc8511d8535c8876.exe 27 PID 1204 wrote to memory of 1036 1204 b52a9850eede739751b2ebeaf9cbb61998141ae830077df3bc8511d8535c8876.exe 27 PID 1204 wrote to memory of 1036 1204 b52a9850eede739751b2ebeaf9cbb61998141ae830077df3bc8511d8535c8876.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\b52a9850eede739751b2ebeaf9cbb61998141ae830077df3bc8511d8535c8876.exe"C:\Users\Admin\AppData\Local\Temp\b52a9850eede739751b2ebeaf9cbb61998141ae830077df3bc8511d8535c8876.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1204 -
C:\Users\Admin\yhxel.exe"C:\Users\Admin\yhxel.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1036
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
244KB
MD5768b5a7dc99623a905ae52879de827fd
SHA168cffc71f99086c67a14bc7dc0f5379c42fc4d80
SHA256b52a9850eede739751b2ebeaf9cbb61998141ae830077df3bc8511d8535c8876
SHA5121c5d4307fc6cb8540af9ef88c88c1b7fd2e5c3fc40cb0f6a92a18235356d2ef1927dcfa6f06762c735cd363cccac211d43c9ac8a5ff5ce3addb0647568dced01
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Filesize
244KB
MD5768b5a7dc99623a905ae52879de827fd
SHA168cffc71f99086c67a14bc7dc0f5379c42fc4d80
SHA256b52a9850eede739751b2ebeaf9cbb61998141ae830077df3bc8511d8535c8876
SHA5121c5d4307fc6cb8540af9ef88c88c1b7fd2e5c3fc40cb0f6a92a18235356d2ef1927dcfa6f06762c735cd363cccac211d43c9ac8a5ff5ce3addb0647568dced01
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Filesize
244KB
MD5768b5a7dc99623a905ae52879de827fd
SHA168cffc71f99086c67a14bc7dc0f5379c42fc4d80
SHA256b52a9850eede739751b2ebeaf9cbb61998141ae830077df3bc8511d8535c8876
SHA5121c5d4307fc6cb8540af9ef88c88c1b7fd2e5c3fc40cb0f6a92a18235356d2ef1927dcfa6f06762c735cd363cccac211d43c9ac8a5ff5ce3addb0647568dced01
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Filesize
244KB
MD5768b5a7dc99623a905ae52879de827fd
SHA168cffc71f99086c67a14bc7dc0f5379c42fc4d80
SHA256b52a9850eede739751b2ebeaf9cbb61998141ae830077df3bc8511d8535c8876
SHA5121c5d4307fc6cb8540af9ef88c88c1b7fd2e5c3fc40cb0f6a92a18235356d2ef1927dcfa6f06762c735cd363cccac211d43c9ac8a5ff5ce3addb0647568dced01