Analysis
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max time kernel
151s -
max time network
77s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
20/10/2022, 10:03
Static task
static1
Behavioral task
behavioral1
Sample
eb66c8a9e00ec9723dbd32d592e528b41b4c7a96270cd1725f5450c36e92ccfa.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
eb66c8a9e00ec9723dbd32d592e528b41b4c7a96270cd1725f5450c36e92ccfa.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
eb66c8a9e00ec9723dbd32d592e528b41b4c7a96270cd1725f5450c36e92ccfa.exe
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Size
272KB
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MD5
96d355cbc2c27c59f268939dedab1284
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SHA1
8ae7c213914089266b967df8f5d06019ffe9ad7e
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SHA256
eb66c8a9e00ec9723dbd32d592e528b41b4c7a96270cd1725f5450c36e92ccfa
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SHA512
18dbcab99f12e7846bfa5c0d2cb0b27721c6fb4116aefe9963e1a8655c629f416812963ddcf2e49dbaf9ffba7a3333a085530cda4164178cd92073c37622f28b
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SSDEEP
6144:MjFcrymU8iHOADP0UfV3SHWPIxXZgO+VeR8RUl:VXUfJSj+R
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" eb66c8a9e00ec9723dbd32d592e528b41b4c7a96270cd1725f5450c36e92ccfa.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" caojei.exe -
Executes dropped EXE 1 IoCs
pid Process 1108 caojei.exe -
Loads dropped DLL 2 IoCs
pid Process 1800 eb66c8a9e00ec9723dbd32d592e528b41b4c7a96270cd1725f5450c36e92ccfa.exe 1800 eb66c8a9e00ec9723dbd32d592e528b41b4c7a96270cd1725f5450c36e92ccfa.exe -
Adds Run key to start application 2 TTPs 50 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /E" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /y" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /X" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /g" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /t" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /M" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /f" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /e" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /j" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /p" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /s" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /L" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /c" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /Z" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /u" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /h" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /i" caojei.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ eb66c8a9e00ec9723dbd32d592e528b41b4c7a96270cd1725f5450c36e92ccfa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /C" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /n" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /H" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /l" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /N" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /O" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /q" caojei.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /K" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /G" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /A" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /r" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /Q" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /I" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /k" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /a" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /T" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /J" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /R" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /z" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /Y" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /B" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /m" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /Z" eb66c8a9e00ec9723dbd32d592e528b41b4c7a96270cd1725f5450c36e92ccfa.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /v" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /x" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /d" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /V" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /D" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /S" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /F" caojei.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\caojei = "C:\\Users\\Admin\\caojei.exe /o" caojei.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 1800 eb66c8a9e00ec9723dbd32d592e528b41b4c7a96270cd1725f5450c36e92ccfa.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe 1108 caojei.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1800 eb66c8a9e00ec9723dbd32d592e528b41b4c7a96270cd1725f5450c36e92ccfa.exe 1108 caojei.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1800 wrote to memory of 1108 1800 eb66c8a9e00ec9723dbd32d592e528b41b4c7a96270cd1725f5450c36e92ccfa.exe 28 PID 1800 wrote to memory of 1108 1800 eb66c8a9e00ec9723dbd32d592e528b41b4c7a96270cd1725f5450c36e92ccfa.exe 28 PID 1800 wrote to memory of 1108 1800 eb66c8a9e00ec9723dbd32d592e528b41b4c7a96270cd1725f5450c36e92ccfa.exe 28 PID 1800 wrote to memory of 1108 1800 eb66c8a9e00ec9723dbd32d592e528b41b4c7a96270cd1725f5450c36e92ccfa.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\eb66c8a9e00ec9723dbd32d592e528b41b4c7a96270cd1725f5450c36e92ccfa.exe"C:\Users\Admin\AppData\Local\Temp\eb66c8a9e00ec9723dbd32d592e528b41b4c7a96270cd1725f5450c36e92ccfa.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:1800 -
C:\Users\Admin\caojei.exe"C:\Users\Admin\caojei.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
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
272KB
MD5857409145260e2512c97fd387fa4b828
SHA1e9517fdd847e10d58cde6e012bd1ad7f6695b294
SHA25697478241d88fe11de4242a0686e678ca2c368746eee1f6252250bcbf016d1551
SHA512964af9001cab6eabe04dae6364314868eb4b1a878181765de3edb242532a99061c2c7ddae4c8054f704381650ad169b78ba0eda0b56f5b338620485c19bceda5
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Filesize
272KB
MD5857409145260e2512c97fd387fa4b828
SHA1e9517fdd847e10d58cde6e012bd1ad7f6695b294
SHA25697478241d88fe11de4242a0686e678ca2c368746eee1f6252250bcbf016d1551
SHA512964af9001cab6eabe04dae6364314868eb4b1a878181765de3edb242532a99061c2c7ddae4c8054f704381650ad169b78ba0eda0b56f5b338620485c19bceda5
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Filesize
272KB
MD5857409145260e2512c97fd387fa4b828
SHA1e9517fdd847e10d58cde6e012bd1ad7f6695b294
SHA25697478241d88fe11de4242a0686e678ca2c368746eee1f6252250bcbf016d1551
SHA512964af9001cab6eabe04dae6364314868eb4b1a878181765de3edb242532a99061c2c7ddae4c8054f704381650ad169b78ba0eda0b56f5b338620485c19bceda5
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Filesize
272KB
MD5857409145260e2512c97fd387fa4b828
SHA1e9517fdd847e10d58cde6e012bd1ad7f6695b294
SHA25697478241d88fe11de4242a0686e678ca2c368746eee1f6252250bcbf016d1551
SHA512964af9001cab6eabe04dae6364314868eb4b1a878181765de3edb242532a99061c2c7ddae4c8054f704381650ad169b78ba0eda0b56f5b338620485c19bceda5