Analysis
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max time kernel
151s -
max time network
42s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
05-12-2022 23:45
Static task
static1
Behavioral task
behavioral1
Sample
a632ec32237374a4c48d657e3a35af4f59e61704bd9bff5bdf8fd8716a0f34c8.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
a632ec32237374a4c48d657e3a35af4f59e61704bd9bff5bdf8fd8716a0f34c8.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
a632ec32237374a4c48d657e3a35af4f59e61704bd9bff5bdf8fd8716a0f34c8.exe
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Size
84KB
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MD5
94f415d41857200d6b7dc748e8f112d7
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SHA1
b262bba105eb45b88b8937943b8a0b7d16de8747
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SHA256
a632ec32237374a4c48d657e3a35af4f59e61704bd9bff5bdf8fd8716a0f34c8
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SHA512
7d94a71ae0b1c538278b2433fac04f3e764987be14e3e229bb526833ac251370fcc78e57482b93a7b259f00b8f05fd0fdb53ec2de70e56503f47b0cd9d05ba3b
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SSDEEP
1536:v88yTb7bg4htUVGLG/wXJYeUj27dTGHq13i6E:0vUVeG/wXJY527Y
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-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" tuoyum.exe Set value (int) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" a632ec32237374a4c48d657e3a35af4f59e61704bd9bff5bdf8fd8716a0f34c8.exe -
Executes dropped EXE 1 IoCs
pid Process 2040 tuoyum.exe -
Loads dropped DLL 2 IoCs
pid Process 1488 a632ec32237374a4c48d657e3a35af4f59e61704bd9bff5bdf8fd8716a0f34c8.exe 1488 a632ec32237374a4c48d657e3a35af4f59e61704bd9bff5bdf8fd8716a0f34c8.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\tuoyum = "C:\\Users\\Admin\\tuoyum.exe /w" tuoyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\tuoyum = "C:\\Users\\Admin\\tuoyum.exe /u" tuoyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\tuoyum = "C:\\Users\\Admin\\tuoyum.exe /j" tuoyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\tuoyum = "C:\\Users\\Admin\\tuoyum.exe /s" tuoyum.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ a632ec32237374a4c48d657e3a35af4f59e61704bd9bff5bdf8fd8716a0f34c8.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\tuoyum = "C:\\Users\\Admin\\tuoyum.exe /i" a632ec32237374a4c48d657e3a35af4f59e61704bd9bff5bdf8fd8716a0f34c8.exe Key created \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\ tuoyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\tuoyum = "C:\\Users\\Admin\\tuoyum.exe /r" tuoyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\tuoyum = "C:\\Users\\Admin\\tuoyum.exe /m" tuoyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\tuoyum = "C:\\Users\\Admin\\tuoyum.exe /d" tuoyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\tuoyum = "C:\\Users\\Admin\\tuoyum.exe /k" tuoyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\tuoyum = "C:\\Users\\Admin\\tuoyum.exe /h" tuoyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\tuoyum = "C:\\Users\\Admin\\tuoyum.exe /v" tuoyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\tuoyum = "C:\\Users\\Admin\\tuoyum.exe /l" tuoyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\tuoyum = "C:\\Users\\Admin\\tuoyum.exe /t" tuoyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\tuoyum = "C:\\Users\\Admin\\tuoyum.exe /y" tuoyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\tuoyum = "C:\\Users\\Admin\\tuoyum.exe /c" tuoyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\tuoyum = "C:\\Users\\Admin\\tuoyum.exe /o" tuoyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\tuoyum = "C:\\Users\\Admin\\tuoyum.exe /g" tuoyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\tuoyum = "C:\\Users\\Admin\\tuoyum.exe /a" tuoyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\tuoyum = "C:\\Users\\Admin\\tuoyum.exe /x" tuoyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\tuoyum = "C:\\Users\\Admin\\tuoyum.exe /b" tuoyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\tuoyum = "C:\\Users\\Admin\\tuoyum.exe /e" tuoyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\tuoyum = "C:\\Users\\Admin\\tuoyum.exe /p" tuoyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\tuoyum = "C:\\Users\\Admin\\tuoyum.exe /z" tuoyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\tuoyum = "C:\\Users\\Admin\\tuoyum.exe /n" tuoyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\tuoyum = "C:\\Users\\Admin\\tuoyum.exe /i" tuoyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\tuoyum = "C:\\Users\\Admin\\tuoyum.exe /q" tuoyum.exe Set value (str) \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\tuoyum = "C:\\Users\\Admin\\tuoyum.exe /f" tuoyum.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 1488 a632ec32237374a4c48d657e3a35af4f59e61704bd9bff5bdf8fd8716a0f34c8.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe 2040 tuoyum.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1488 a632ec32237374a4c48d657e3a35af4f59e61704bd9bff5bdf8fd8716a0f34c8.exe 2040 tuoyum.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1488 wrote to memory of 2040 1488 a632ec32237374a4c48d657e3a35af4f59e61704bd9bff5bdf8fd8716a0f34c8.exe 27 PID 1488 wrote to memory of 2040 1488 a632ec32237374a4c48d657e3a35af4f59e61704bd9bff5bdf8fd8716a0f34c8.exe 27 PID 1488 wrote to memory of 2040 1488 a632ec32237374a4c48d657e3a35af4f59e61704bd9bff5bdf8fd8716a0f34c8.exe 27 PID 1488 wrote to memory of 2040 1488 a632ec32237374a4c48d657e3a35af4f59e61704bd9bff5bdf8fd8716a0f34c8.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\a632ec32237374a4c48d657e3a35af4f59e61704bd9bff5bdf8fd8716a0f34c8.exe"C:\Users\Admin\AppData\Local\Temp\a632ec32237374a4c48d657e3a35af4f59e61704bd9bff5bdf8fd8716a0f34c8.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:1488 -
C:\Users\Admin\tuoyum.exe"C:\Users\Admin\tuoyum.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:2040
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
84KB
MD5e8bd90db8fab77a75bea75639fb02320
SHA1902174b3457c80f149282971524866c96c99a894
SHA256f52de204b53e5f19f030ff3d1cfc35f5609b1dd2c6b1a31320eecb028ec82fe8
SHA51204c7a2a8966d74245b2e975a084f98c1667d05a0365760cc1ba0be6f898376bfdb671ece671f5041e52192cf0fc51bc0212aa08af37a2e4296e00e0ae4b49f50
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Filesize
84KB
MD5e8bd90db8fab77a75bea75639fb02320
SHA1902174b3457c80f149282971524866c96c99a894
SHA256f52de204b53e5f19f030ff3d1cfc35f5609b1dd2c6b1a31320eecb028ec82fe8
SHA51204c7a2a8966d74245b2e975a084f98c1667d05a0365760cc1ba0be6f898376bfdb671ece671f5041e52192cf0fc51bc0212aa08af37a2e4296e00e0ae4b49f50
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Filesize
84KB
MD5e8bd90db8fab77a75bea75639fb02320
SHA1902174b3457c80f149282971524866c96c99a894
SHA256f52de204b53e5f19f030ff3d1cfc35f5609b1dd2c6b1a31320eecb028ec82fe8
SHA51204c7a2a8966d74245b2e975a084f98c1667d05a0365760cc1ba0be6f898376bfdb671ece671f5041e52192cf0fc51bc0212aa08af37a2e4296e00e0ae4b49f50
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Filesize
84KB
MD5e8bd90db8fab77a75bea75639fb02320
SHA1902174b3457c80f149282971524866c96c99a894
SHA256f52de204b53e5f19f030ff3d1cfc35f5609b1dd2c6b1a31320eecb028ec82fe8
SHA51204c7a2a8966d74245b2e975a084f98c1667d05a0365760cc1ba0be6f898376bfdb671ece671f5041e52192cf0fc51bc0212aa08af37a2e4296e00e0ae4b49f50