Analysis
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max time kernel
151s -
max time network
45s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
21-11-2022 15:22
Static task
static1
Behavioral task
behavioral1
Sample
af8e0afd7bcf460130d627bd521b201af504d23beaefdd616c9254bd89d17844.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
af8e0afd7bcf460130d627bd521b201af504d23beaefdd616c9254bd89d17844.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
af8e0afd7bcf460130d627bd521b201af504d23beaefdd616c9254bd89d17844.exe
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Size
236KB
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MD5
101000eaf7d158e8643ed23b273c81c0
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SHA1
a6c25922c9a6d31c40986e8bec35448068f27a59
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SHA256
af8e0afd7bcf460130d627bd521b201af504d23beaefdd616c9254bd89d17844
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SHA512
63dbfbd6ef1f979b1f4b70424e7ff17f238c7afdb5c5f06626a6db6bcf9d470592e5c63b9531c1ca92ce3afa826a0081609ed754bf9b8573e7604048751ff25b
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SSDEEP
3072:m6VlhsJ0QsvyMZeIT51B8u0gWCyiHCUPqgxh:MSQuyMwItf8u0gWCyiHCm
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" af8e0afd7bcf460130d627bd521b201af504d23beaefdd616c9254bd89d17844.exe Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" yjwoes.exe -
Executes dropped EXE 1 IoCs
pid Process 1000 yjwoes.exe -
Loads dropped DLL 2 IoCs
pid Process 780 af8e0afd7bcf460130d627bd521b201af504d23beaefdd616c9254bd89d17844.exe 780 af8e0afd7bcf460130d627bd521b201af504d23beaefdd616c9254bd89d17844.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\yjwoes = "C:\\Users\\Admin\\yjwoes.exe /v" yjwoes.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yjwoes = "C:\\Users\\Admin\\yjwoes.exe /g" yjwoes.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yjwoes = "C:\\Users\\Admin\\yjwoes.exe /m" yjwoes.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yjwoes = "C:\\Users\\Admin\\yjwoes.exe /l" yjwoes.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yjwoes = "C:\\Users\\Admin\\yjwoes.exe /h" yjwoes.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yjwoes = "C:\\Users\\Admin\\yjwoes.exe /t" yjwoes.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yjwoes = "C:\\Users\\Admin\\yjwoes.exe /n" yjwoes.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ af8e0afd7bcf460130d627bd521b201af504d23beaefdd616c9254bd89d17844.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yjwoes = "C:\\Users\\Admin\\yjwoes.exe /d" yjwoes.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yjwoes = "C:\\Users\\Admin\\yjwoes.exe /e" yjwoes.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yjwoes = "C:\\Users\\Admin\\yjwoes.exe /y" yjwoes.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yjwoes = "C:\\Users\\Admin\\yjwoes.exe /s" yjwoes.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yjwoes = "C:\\Users\\Admin\\yjwoes.exe /o" yjwoes.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yjwoes = "C:\\Users\\Admin\\yjwoes.exe /u" yjwoes.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yjwoes = "C:\\Users\\Admin\\yjwoes.exe /x" af8e0afd7bcf460130d627bd521b201af504d23beaefdd616c9254bd89d17844.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yjwoes = "C:\\Users\\Admin\\yjwoes.exe /p" yjwoes.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yjwoes = "C:\\Users\\Admin\\yjwoes.exe /c" yjwoes.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yjwoes = "C:\\Users\\Admin\\yjwoes.exe /k" yjwoes.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yjwoes = "C:\\Users\\Admin\\yjwoes.exe /f" yjwoes.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yjwoes = "C:\\Users\\Admin\\yjwoes.exe /z" yjwoes.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yjwoes = "C:\\Users\\Admin\\yjwoes.exe /r" yjwoes.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yjwoes = "C:\\Users\\Admin\\yjwoes.exe /i" yjwoes.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yjwoes = "C:\\Users\\Admin\\yjwoes.exe /x" yjwoes.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yjwoes = "C:\\Users\\Admin\\yjwoes.exe /b" yjwoes.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yjwoes = "C:\\Users\\Admin\\yjwoes.exe /a" yjwoes.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yjwoes = "C:\\Users\\Admin\\yjwoes.exe /j" yjwoes.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yjwoes = "C:\\Users\\Admin\\yjwoes.exe /w" yjwoes.exe Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\ yjwoes.exe Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\yjwoes = "C:\\Users\\Admin\\yjwoes.exe /q" yjwoes.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 780 af8e0afd7bcf460130d627bd521b201af504d23beaefdd616c9254bd89d17844.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe 1000 yjwoes.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 780 af8e0afd7bcf460130d627bd521b201af504d23beaefdd616c9254bd89d17844.exe 1000 yjwoes.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 780 wrote to memory of 1000 780 af8e0afd7bcf460130d627bd521b201af504d23beaefdd616c9254bd89d17844.exe 28 PID 780 wrote to memory of 1000 780 af8e0afd7bcf460130d627bd521b201af504d23beaefdd616c9254bd89d17844.exe 28 PID 780 wrote to memory of 1000 780 af8e0afd7bcf460130d627bd521b201af504d23beaefdd616c9254bd89d17844.exe 28 PID 780 wrote to memory of 1000 780 af8e0afd7bcf460130d627bd521b201af504d23beaefdd616c9254bd89d17844.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\af8e0afd7bcf460130d627bd521b201af504d23beaefdd616c9254bd89d17844.exe"C:\Users\Admin\AppData\Local\Temp\af8e0afd7bcf460130d627bd521b201af504d23beaefdd616c9254bd89d17844.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:780 -
C:\Users\Admin\yjwoes.exe"C:\Users\Admin\yjwoes.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:1000
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
236KB
MD5fe0bc218e1b3bfbf4a67786cf42ded9a
SHA19b248c6e4ed454501a91ab99d97f4d90ea59d80e
SHA256cc42748250e2f8d68da59be1119f663a08ddda4175935590bddc885972aafc9c
SHA512430bec50c3f5a6359141b3626c6b2a4c599c6ed53679b931539919cec4e621f289d4d6e4debc8f34549b4376ff57ac02cb1bf18b704ee773c743e00bb3d7fa62
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Filesize
236KB
MD5fe0bc218e1b3bfbf4a67786cf42ded9a
SHA19b248c6e4ed454501a91ab99d97f4d90ea59d80e
SHA256cc42748250e2f8d68da59be1119f663a08ddda4175935590bddc885972aafc9c
SHA512430bec50c3f5a6359141b3626c6b2a4c599c6ed53679b931539919cec4e621f289d4d6e4debc8f34549b4376ff57ac02cb1bf18b704ee773c743e00bb3d7fa62
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Filesize
236KB
MD5fe0bc218e1b3bfbf4a67786cf42ded9a
SHA19b248c6e4ed454501a91ab99d97f4d90ea59d80e
SHA256cc42748250e2f8d68da59be1119f663a08ddda4175935590bddc885972aafc9c
SHA512430bec50c3f5a6359141b3626c6b2a4c599c6ed53679b931539919cec4e621f289d4d6e4debc8f34549b4376ff57ac02cb1bf18b704ee773c743e00bb3d7fa62
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Filesize
236KB
MD5fe0bc218e1b3bfbf4a67786cf42ded9a
SHA19b248c6e4ed454501a91ab99d97f4d90ea59d80e
SHA256cc42748250e2f8d68da59be1119f663a08ddda4175935590bddc885972aafc9c
SHA512430bec50c3f5a6359141b3626c6b2a4c599c6ed53679b931539919cec4e621f289d4d6e4debc8f34549b4376ff57ac02cb1bf18b704ee773c743e00bb3d7fa62