Analysis
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max time kernel
150s -
max time network
76s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
24-11-2022 00:19
Static task
static1
Behavioral task
behavioral1
Sample
ea85312349a1e9a78ef14a3536b7f40342cab1a2a645cb0ac4d51e5a3c651575.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
ea85312349a1e9a78ef14a3536b7f40342cab1a2a645cb0ac4d51e5a3c651575.exe
Resource
win10v2004-20220812-en
General
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Target
ea85312349a1e9a78ef14a3536b7f40342cab1a2a645cb0ac4d51e5a3c651575.exe
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Size
184KB
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MD5
527c878d164b137e5ded518f44f0fc5a
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SHA1
0d81b47e0ba6d4a4b8e6a2219ca10d7cea54139e
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SHA256
ea85312349a1e9a78ef14a3536b7f40342cab1a2a645cb0ac4d51e5a3c651575
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SHA512
4f73c7f23c30c163f98ff03ac8f7becfb2d26ac90ebb5d4dd51330a767beab9eb834c4f6ac32b644c5c2722e12d69897d200b072b9ac30027ac297da3614e6c5
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SSDEEP
3072:FAj1cfl/BTyzcM+Knvmb7/D263i4qMbBQhAKIWOD2r1oX1/hcNcfAUane4RzsUZx:EClpTFzKnvmb7/D26y4qMSyKbOD2r1oG
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
Processes:
ea85312349a1e9a78ef14a3536b7f40342cab1a2a645cb0ac4d51e5a3c651575.exekeiyuoz.exedescription ioc process Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" ea85312349a1e9a78ef14a3536b7f40342cab1a2a645cb0ac4d51e5a3c651575.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" keiyuoz.exe -
Executes dropped EXE 1 IoCs
Processes:
keiyuoz.exepid process 1108 keiyuoz.exe -
Loads dropped DLL 2 IoCs
Processes:
ea85312349a1e9a78ef14a3536b7f40342cab1a2a645cb0ac4d51e5a3c651575.exepid process 1652 ea85312349a1e9a78ef14a3536b7f40342cab1a2a645cb0ac4d51e5a3c651575.exe 1652 ea85312349a1e9a78ef14a3536b7f40342cab1a2a645cb0ac4d51e5a3c651575.exe -
Adds Run key to start application 2 TTPs 52 IoCs
Processes:
keiyuoz.exeea85312349a1e9a78ef14a3536b7f40342cab1a2a645cb0ac4d51e5a3c651575.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /F" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /Y" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /R" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /m" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /v" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /O" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /w" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /G" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /h" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /j" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /P" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /a" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /s" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /H" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /Q" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /B" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /J" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /e" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /W" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /l" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /V" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /I" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /f" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /g" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /A" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /x" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /q" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /L" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /i" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /T" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /S" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /n" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /U" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /u" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /p" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /X" keiyuoz.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ ea85312349a1e9a78ef14a3536b7f40342cab1a2a645cb0ac4d51e5a3c651575.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /Z" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /E" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /N" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /c" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /w" ea85312349a1e9a78ef14a3536b7f40342cab1a2a645cb0ac4d51e5a3c651575.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /b" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /d" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /K" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /D" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /C" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /r" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /y" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /z" keiyuoz.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\keiyuoz = "C:\\Users\\Admin\\keiyuoz.exe /k" keiyuoz.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
Processes:
ea85312349a1e9a78ef14a3536b7f40342cab1a2a645cb0ac4d51e5a3c651575.exekeiyuoz.exepid process 1652 ea85312349a1e9a78ef14a3536b7f40342cab1a2a645cb0ac4d51e5a3c651575.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe 1108 keiyuoz.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
ea85312349a1e9a78ef14a3536b7f40342cab1a2a645cb0ac4d51e5a3c651575.exekeiyuoz.exepid process 1652 ea85312349a1e9a78ef14a3536b7f40342cab1a2a645cb0ac4d51e5a3c651575.exe 1108 keiyuoz.exe -
Suspicious use of WriteProcessMemory 4 IoCs
Processes:
ea85312349a1e9a78ef14a3536b7f40342cab1a2a645cb0ac4d51e5a3c651575.exedescription pid process target process PID 1652 wrote to memory of 1108 1652 ea85312349a1e9a78ef14a3536b7f40342cab1a2a645cb0ac4d51e5a3c651575.exe keiyuoz.exe PID 1652 wrote to memory of 1108 1652 ea85312349a1e9a78ef14a3536b7f40342cab1a2a645cb0ac4d51e5a3c651575.exe keiyuoz.exe PID 1652 wrote to memory of 1108 1652 ea85312349a1e9a78ef14a3536b7f40342cab1a2a645cb0ac4d51e5a3c651575.exe keiyuoz.exe PID 1652 wrote to memory of 1108 1652 ea85312349a1e9a78ef14a3536b7f40342cab1a2a645cb0ac4d51e5a3c651575.exe keiyuoz.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\ea85312349a1e9a78ef14a3536b7f40342cab1a2a645cb0ac4d51e5a3c651575.exe"C:\Users\Admin\AppData\Local\Temp\ea85312349a1e9a78ef14a3536b7f40342cab1a2a645cb0ac4d51e5a3c651575.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:1652 -
C:\Users\Admin\keiyuoz.exe"C:\Users\Admin\keiyuoz.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:1108
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
184KB
MD5b7e82c6cb281f8bad8282f724f66fbd9
SHA1bdbaab76df0f1427f7e76b0f4b541fbd0f1e1a16
SHA256478127249e209694077403281e8ab17c5b636b2e63c965da41adeaaa7f82b94c
SHA5122d9286006e015f1cca12d0d86631588134b8fa8fcf14faad9b0b60da57a33eaa69ba50c849b5009eaa21ae2651610d6c45f76f534abab8b1a78b8e6feb6c1f40
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Filesize
184KB
MD5b7e82c6cb281f8bad8282f724f66fbd9
SHA1bdbaab76df0f1427f7e76b0f4b541fbd0f1e1a16
SHA256478127249e209694077403281e8ab17c5b636b2e63c965da41adeaaa7f82b94c
SHA5122d9286006e015f1cca12d0d86631588134b8fa8fcf14faad9b0b60da57a33eaa69ba50c849b5009eaa21ae2651610d6c45f76f534abab8b1a78b8e6feb6c1f40
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Filesize
184KB
MD5b7e82c6cb281f8bad8282f724f66fbd9
SHA1bdbaab76df0f1427f7e76b0f4b541fbd0f1e1a16
SHA256478127249e209694077403281e8ab17c5b636b2e63c965da41adeaaa7f82b94c
SHA5122d9286006e015f1cca12d0d86631588134b8fa8fcf14faad9b0b60da57a33eaa69ba50c849b5009eaa21ae2651610d6c45f76f534abab8b1a78b8e6feb6c1f40
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Filesize
184KB
MD5b7e82c6cb281f8bad8282f724f66fbd9
SHA1bdbaab76df0f1427f7e76b0f4b541fbd0f1e1a16
SHA256478127249e209694077403281e8ab17c5b636b2e63c965da41adeaaa7f82b94c
SHA5122d9286006e015f1cca12d0d86631588134b8fa8fcf14faad9b0b60da57a33eaa69ba50c849b5009eaa21ae2651610d6c45f76f534abab8b1a78b8e6feb6c1f40