Analysis
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max time kernel
150s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
21/11/2022, 14:15
Static task
static1
Behavioral task
behavioral1
Sample
3d94be58f420c14fc5965bc61c76105b7b213660e7cb062ad61813124063faad.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
3d94be58f420c14fc5965bc61c76105b7b213660e7cb062ad61813124063faad.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
3d94be58f420c14fc5965bc61c76105b7b213660e7cb062ad61813124063faad.exe
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Size
116KB
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MD5
06e745c1a6aa713766e801acdbc9da0a
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SHA1
3921127dd3b9a17c0c6c300247fc0195fac0f699
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SHA256
3d94be58f420c14fc5965bc61c76105b7b213660e7cb062ad61813124063faad
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SHA512
164b9c8a6b6cf6a6713da71719c5a749a253f87644d9afc0cfc53dce26ddbf1cae04e95e6e48459eda605b3d378eaf5bc6425609728b4c4f5371276dbb5771f4
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SSDEEP
3072:G0T94Xnr99Rx7D/ONLd01eWkVkMfwhHX0WRVf:vZ477D2NLd01eWkVkMfwhHEWRF
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-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 3d94be58f420c14fc5965bc61c76105b7b213660e7cb062ad61813124063faad.exe Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" yuoiy.exe -
Executes dropped EXE 1 IoCs
pid Process 2212 yuoiy.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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation 3d94be58f420c14fc5965bc61c76105b7b213660e7cb062ad61813124063faad.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ yuoiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoiy = "C:\\Users\\Admin\\yuoiy.exe /y" yuoiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoiy = "C:\\Users\\Admin\\yuoiy.exe /q" yuoiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoiy = "C:\\Users\\Admin\\yuoiy.exe /c" yuoiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoiy = "C:\\Users\\Admin\\yuoiy.exe /i" yuoiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoiy = "C:\\Users\\Admin\\yuoiy.exe /j" yuoiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoiy = "C:\\Users\\Admin\\yuoiy.exe /w" yuoiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoiy = "C:\\Users\\Admin\\yuoiy.exe /l" yuoiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoiy = "C:\\Users\\Admin\\yuoiy.exe /u" yuoiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoiy = "C:\\Users\\Admin\\yuoiy.exe /n" yuoiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoiy = "C:\\Users\\Admin\\yuoiy.exe /z" yuoiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoiy = "C:\\Users\\Admin\\yuoiy.exe /v" yuoiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoiy = "C:\\Users\\Admin\\yuoiy.exe /k" yuoiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoiy = "C:\\Users\\Admin\\yuoiy.exe /p" yuoiy.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 3d94be58f420c14fc5965bc61c76105b7b213660e7cb062ad61813124063faad.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoiy = "C:\\Users\\Admin\\yuoiy.exe /p" 3d94be58f420c14fc5965bc61c76105b7b213660e7cb062ad61813124063faad.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoiy = "C:\\Users\\Admin\\yuoiy.exe /m" yuoiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoiy = "C:\\Users\\Admin\\yuoiy.exe /a" yuoiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoiy = "C:\\Users\\Admin\\yuoiy.exe /r" yuoiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoiy = "C:\\Users\\Admin\\yuoiy.exe /t" yuoiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoiy = "C:\\Users\\Admin\\yuoiy.exe /e" yuoiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoiy = "C:\\Users\\Admin\\yuoiy.exe /g" yuoiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoiy = "C:\\Users\\Admin\\yuoiy.exe /s" yuoiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoiy = "C:\\Users\\Admin\\yuoiy.exe /b" yuoiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoiy = "C:\\Users\\Admin\\yuoiy.exe /d" yuoiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoiy = "C:\\Users\\Admin\\yuoiy.exe /o" yuoiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoiy = "C:\\Users\\Admin\\yuoiy.exe /f" yuoiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoiy = "C:\\Users\\Admin\\yuoiy.exe /h" yuoiy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yuoiy = "C:\\Users\\Admin\\yuoiy.exe /x" yuoiy.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 4756 3d94be58f420c14fc5965bc61c76105b7b213660e7cb062ad61813124063faad.exe 4756 3d94be58f420c14fc5965bc61c76105b7b213660e7cb062ad61813124063faad.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe 2212 yuoiy.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4756 3d94be58f420c14fc5965bc61c76105b7b213660e7cb062ad61813124063faad.exe 2212 yuoiy.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4756 wrote to memory of 2212 4756 3d94be58f420c14fc5965bc61c76105b7b213660e7cb062ad61813124063faad.exe 80 PID 4756 wrote to memory of 2212 4756 3d94be58f420c14fc5965bc61c76105b7b213660e7cb062ad61813124063faad.exe 80 PID 4756 wrote to memory of 2212 4756 3d94be58f420c14fc5965bc61c76105b7b213660e7cb062ad61813124063faad.exe 80
Processes
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C:\Users\Admin\AppData\Local\Temp\3d94be58f420c14fc5965bc61c76105b7b213660e7cb062ad61813124063faad.exe"C:\Users\Admin\AppData\Local\Temp\3d94be58f420c14fc5965bc61c76105b7b213660e7cb062ad61813124063faad.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:4756 -
C:\Users\Admin\yuoiy.exe"C:\Users\Admin\yuoiy.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:2212
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
116KB
MD5c5c659bd777baf586f56f138182e7922
SHA1ab75783b21c3fec50f82396d5b07706cb6771336
SHA256f9626c843519b1fed9b3714ae9419fba44b052f3218e7fa50c1f784d0dd25715
SHA51202644d74fffef665825fb104282e3af5fb4a1ceea3203e1b690e8b560b3db58aa84ce366ee66a8a4902bc8e2075b499213a977e2cb21f3d9e91ad6e68895d96f
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Filesize
116KB
MD5c5c659bd777baf586f56f138182e7922
SHA1ab75783b21c3fec50f82396d5b07706cb6771336
SHA256f9626c843519b1fed9b3714ae9419fba44b052f3218e7fa50c1f784d0dd25715
SHA51202644d74fffef665825fb104282e3af5fb4a1ceea3203e1b690e8b560b3db58aa84ce366ee66a8a4902bc8e2075b499213a977e2cb21f3d9e91ad6e68895d96f