Analysis
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max time kernel
170s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
03-12-2022 19:48
Static task
static1
Behavioral task
behavioral1
Sample
41c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98.exe
Resource
win7-20220812-en
windows7-x64
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
41c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
11 signatures
150 seconds
General
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Target
41c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98.exe
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Size
88KB
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MD5
29a952e7458ce407e1293d967eb62940
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SHA1
0c694a87267f95a7f616a4a2b4431a4f0d769bc3
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SHA256
41c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98
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SHA512
af8d2173d8e72a7df6e0db462471b8f79c1a43abbd3a056f2db39d0f56dc88a9755454d73609573d76ac8e8a44bfdc57763482791d259beee466b132611f737e
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SSDEEP
1536:eUQZEfhQIKKF35FQo6uxmstkXEB/PRiv9yaBdkM6WY2Iugm5QZj+lYWHzq7N:7fi9Knhtt9pPSZY2ngCQhcYWHe7N
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" 41c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" cijoy.exe -
Executes dropped EXE 2 IoCs
pid Process 964 cijoy.exe 1988 cijoy.exe -
Loads dropped DLL 2 IoCs
pid Process 1932 41c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98.exe 1932 41c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\cijoy = "C:\\Users\\Admin\\cijoy.exe /a" cijoy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\cijoy = "C:\\Users\\Admin\\cijoy.exe /t" cijoy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\cijoy = "C:\\Users\\Admin\\cijoy.exe /m" cijoy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\cijoy = "C:\\Users\\Admin\\cijoy.exe /g" cijoy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\cijoy = "C:\\Users\\Admin\\cijoy.exe /w" cijoy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\cijoy = "C:\\Users\\Admin\\cijoy.exe /c" cijoy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\cijoy = "C:\\Users\\Admin\\cijoy.exe /k" cijoy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\cijoy = "C:\\Users\\Admin\\cijoy.exe /r" cijoy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\cijoy = "C:\\Users\\Admin\\cijoy.exe /s" cijoy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\cijoy = "C:\\Users\\Admin\\cijoy.exe /e" cijoy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\cijoy = "C:\\Users\\Admin\\cijoy.exe /d" cijoy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\cijoy = "C:\\Users\\Admin\\cijoy.exe /i" cijoy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\cijoy = "C:\\Users\\Admin\\cijoy.exe /q" cijoy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\cijoy = "C:\\Users\\Admin\\cijoy.exe /p" cijoy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\cijoy = "C:\\Users\\Admin\\cijoy.exe /y" cijoy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\cijoy = "C:\\Users\\Admin\\cijoy.exe /j" cijoy.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ cijoy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\cijoy = "C:\\Users\\Admin\\cijoy.exe /f" cijoy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\cijoy = "C:\\Users\\Admin\\cijoy.exe /n" cijoy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\cijoy = "C:\\Users\\Admin\\cijoy.exe /o" cijoy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\cijoy = "C:\\Users\\Admin\\cijoy.exe /y" 41c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\cijoy = "C:\\Users\\Admin\\cijoy.exe /v" cijoy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\cijoy = "C:\\Users\\Admin\\cijoy.exe /z" cijoy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\cijoy = "C:\\Users\\Admin\\cijoy.exe /u" cijoy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\cijoy = "C:\\Users\\Admin\\cijoy.exe /l" cijoy.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 41c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\cijoy = "C:\\Users\\Admin\\cijoy.exe /b" cijoy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\cijoy = "C:\\Users\\Admin\\cijoy.exe /h" cijoy.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\cijoy = "C:\\Users\\Admin\\cijoy.exe /x" cijoy.exe -
Maps connected drives based on registry 3 TTPs 4 IoCs
Disk information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 41c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum cijoy.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0 cijoy.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum 41c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98.exe -
Drops autorun.inf file 1 TTPs 1 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.
description ioc Process File opened for modification C:\Users\Admin\c\autorun.inf cijoy.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 908 set thread context of 1932 908 41c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98.exe 27 PID 964 set thread context of 1988 964 cijoy.exe 29 -
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 1932 41c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe 1988 cijoy.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 908 41c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98.exe 1932 41c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98.exe 964 cijoy.exe 1988 cijoy.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 908 wrote to memory of 1932 908 41c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98.exe 27 PID 908 wrote to memory of 1932 908 41c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98.exe 27 PID 908 wrote to memory of 1932 908 41c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98.exe 27 PID 908 wrote to memory of 1932 908 41c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98.exe 27 PID 908 wrote to memory of 1932 908 41c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98.exe 27 PID 908 wrote to memory of 1932 908 41c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98.exe 27 PID 908 wrote to memory of 1932 908 41c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98.exe 27 PID 908 wrote to memory of 1932 908 41c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98.exe 27 PID 908 wrote to memory of 1932 908 41c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98.exe 27 PID 908 wrote to memory of 1932 908 41c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98.exe 27 PID 1932 wrote to memory of 964 1932 41c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98.exe 28 PID 1932 wrote to memory of 964 1932 41c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98.exe 28 PID 1932 wrote to memory of 964 1932 41c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98.exe 28 PID 1932 wrote to memory of 964 1932 41c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98.exe 28 PID 964 wrote to memory of 1988 964 cijoy.exe 29 PID 964 wrote to memory of 1988 964 cijoy.exe 29 PID 964 wrote to memory of 1988 964 cijoy.exe 29 PID 964 wrote to memory of 1988 964 cijoy.exe 29 PID 964 wrote to memory of 1988 964 cijoy.exe 29 PID 964 wrote to memory of 1988 964 cijoy.exe 29 PID 964 wrote to memory of 1988 964 cijoy.exe 29 PID 964 wrote to memory of 1988 964 cijoy.exe 29 PID 964 wrote to memory of 1988 964 cijoy.exe 29 PID 964 wrote to memory of 1988 964 cijoy.exe 29
Processes
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C:\Users\Admin\AppData\Local\Temp\41c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98.exe"C:\Users\Admin\AppData\Local\Temp\41c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:908 -
C:\Users\Admin\AppData\Local\Temp\41c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98.exe742⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1932 -
C:\Users\Admin\cijoy.exe"C:\Users\Admin\cijoy.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:964 -
C:\Users\Admin\cijoy.exe744⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Maps connected drives based on registry
- Drops autorun.inf file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:1988
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
88KB
MD529a952e7458ce407e1293d967eb62940
SHA10c694a87267f95a7f616a4a2b4431a4f0d769bc3
SHA25641c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98
SHA512af8d2173d8e72a7df6e0db462471b8f79c1a43abbd3a056f2db39d0f56dc88a9755454d73609573d76ac8e8a44bfdc57763482791d259beee466b132611f737e
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Filesize
88KB
MD529a952e7458ce407e1293d967eb62940
SHA10c694a87267f95a7f616a4a2b4431a4f0d769bc3
SHA25641c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98
SHA512af8d2173d8e72a7df6e0db462471b8f79c1a43abbd3a056f2db39d0f56dc88a9755454d73609573d76ac8e8a44bfdc57763482791d259beee466b132611f737e
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Filesize
88KB
MD529a952e7458ce407e1293d967eb62940
SHA10c694a87267f95a7f616a4a2b4431a4f0d769bc3
SHA25641c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98
SHA512af8d2173d8e72a7df6e0db462471b8f79c1a43abbd3a056f2db39d0f56dc88a9755454d73609573d76ac8e8a44bfdc57763482791d259beee466b132611f737e
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Filesize
88KB
MD529a952e7458ce407e1293d967eb62940
SHA10c694a87267f95a7f616a4a2b4431a4f0d769bc3
SHA25641c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98
SHA512af8d2173d8e72a7df6e0db462471b8f79c1a43abbd3a056f2db39d0f56dc88a9755454d73609573d76ac8e8a44bfdc57763482791d259beee466b132611f737e
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Filesize
88KB
MD529a952e7458ce407e1293d967eb62940
SHA10c694a87267f95a7f616a4a2b4431a4f0d769bc3
SHA25641c1422bcbf61140a1ad988e228c34c6a96b8cb0a8271deba35ca86c82119b98
SHA512af8d2173d8e72a7df6e0db462471b8f79c1a43abbd3a056f2db39d0f56dc88a9755454d73609573d76ac8e8a44bfdc57763482791d259beee466b132611f737e