Analysis
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max time kernel
151s -
max time network
131s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
05/12/2022, 09:14
Static task
static1
Behavioral task
behavioral1
Sample
f5409128bde9c06dbd832bf833868d786ff46769e6f16971b579f735f2f910d4.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
f5409128bde9c06dbd832bf833868d786ff46769e6f16971b579f735f2f910d4.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
f5409128bde9c06dbd832bf833868d786ff46769e6f16971b579f735f2f910d4.exe
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Size
192KB
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MD5
004918ec7b16999ede2e98283bc6ff57
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SHA1
18d6a56675b8851fe1e96a169caa689ff5e653a8
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SHA256
f5409128bde9c06dbd832bf833868d786ff46769e6f16971b579f735f2f910d4
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SHA512
b10f3005fd9af68dac554436ea19336d12d9858174eaca8d4ae2b39bcdf17225f167b8de5e7b72381c7367752571faf0fd4528a77e6695017371f806553f4acd
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SSDEEP
3072:PJ1ZuCWv2JQcFBKBJy6apbuD2VMbj1hlUywVbo9lk:PxBWvUFIJlapu2V21r/di
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-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" f5409128bde9c06dbd832bf833868d786ff46769e6f16971b579f735f2f910d4.exe Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" yiidaa.exe -
Executes dropped EXE 1 IoCs
pid Process 1848 yiidaa.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation f5409128bde9c06dbd832bf833868d786ff46769e6f16971b579f735f2f910d4.exe -
Adds Run key to start application 2 TTPs 54 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /P" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /b" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /v" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /y" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /o" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /X" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /k" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /g" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /S" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /D" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /q" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /z" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /Q" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /d" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /e" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /G" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /W" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /J" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /E" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /x" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /A" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /i" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /C" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /u" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /L" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /R" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /Y" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /j" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /t" yiidaa.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\ yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /N" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /s" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /B" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /w" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /h" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /m" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /c" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /L" f5409128bde9c06dbd832bf833868d786ff46769e6f16971b579f735f2f910d4.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /l" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /f" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /T" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /r" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /n" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /F" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /I" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /K" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /a" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /Z" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /H" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /V" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /p" yiidaa.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\ f5409128bde9c06dbd832bf833868d786ff46769e6f16971b579f735f2f910d4.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /U" yiidaa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yiidaa = "C:\\Users\\Admin\\yiidaa.exe /O" yiidaa.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 3440 f5409128bde9c06dbd832bf833868d786ff46769e6f16971b579f735f2f910d4.exe 3440 f5409128bde9c06dbd832bf833868d786ff46769e6f16971b579f735f2f910d4.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe 1848 yiidaa.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 3440 f5409128bde9c06dbd832bf833868d786ff46769e6f16971b579f735f2f910d4.exe 1848 yiidaa.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3440 wrote to memory of 1848 3440 f5409128bde9c06dbd832bf833868d786ff46769e6f16971b579f735f2f910d4.exe 80 PID 3440 wrote to memory of 1848 3440 f5409128bde9c06dbd832bf833868d786ff46769e6f16971b579f735f2f910d4.exe 80 PID 3440 wrote to memory of 1848 3440 f5409128bde9c06dbd832bf833868d786ff46769e6f16971b579f735f2f910d4.exe 80
Processes
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C:\Users\Admin\AppData\Local\Temp\f5409128bde9c06dbd832bf833868d786ff46769e6f16971b579f735f2f910d4.exe"C:\Users\Admin\AppData\Local\Temp\f5409128bde9c06dbd832bf833868d786ff46769e6f16971b579f735f2f910d4.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3440 -
C:\Users\Admin\yiidaa.exe"C:\Users\Admin\yiidaa.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:1848
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
192KB
MD52dc50c0ede761ada5e3851fb7b08b1fa
SHA1cd5cf6de981c1f3ebcf6f715e01c95341723867f
SHA256e4c4e2396732036ce075b0f436978f87b0ab9c15b9b55131f24835cbf14408f1
SHA5124d3fe4bc37c1e03f2ac67f640d641d8a7406352ffbee4db01017915e22e47239fee99ad7b0953244868a3a13758866ec57abecb76952bac6b694956eb1bb3126
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Filesize
192KB
MD52dc50c0ede761ada5e3851fb7b08b1fa
SHA1cd5cf6de981c1f3ebcf6f715e01c95341723867f
SHA256e4c4e2396732036ce075b0f436978f87b0ab9c15b9b55131f24835cbf14408f1
SHA5124d3fe4bc37c1e03f2ac67f640d641d8a7406352ffbee4db01017915e22e47239fee99ad7b0953244868a3a13758866ec57abecb76952bac6b694956eb1bb3126