Analysis
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max time kernel
154s -
max time network
166s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
01/12/2022, 22:41
Static task
static1
Behavioral task
behavioral1
Sample
c613e93840696145906efa78c2b459eafcbb7f931c29b846e0bcf2134308be26.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
c613e93840696145906efa78c2b459eafcbb7f931c29b846e0bcf2134308be26.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
c613e93840696145906efa78c2b459eafcbb7f931c29b846e0bcf2134308be26.exe
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Size
228KB
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MD5
516008cd6515687e46bb20fb3715263a
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SHA1
86248a0312950f9eb3918beca96209ea4d6c836f
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SHA256
c613e93840696145906efa78c2b459eafcbb7f931c29b846e0bcf2134308be26
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SHA512
336de49bf74f369e9cfb660aab33a784b9a6c11fe3b25cb2d65d527da8def01e99d2282dd47a5e35f86726ce291814f2497624e16c45c3bcbfa2e2813f13dd83
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SSDEEP
3072:JHajkdqqqucqA5TFZ8j4L8yJMRD91y8rYTbCzzBppXeB:WV35TFZ643JMRD9rYTbCzzBppXeB
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-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" c613e93840696145906efa78c2b459eafcbb7f931c29b846e0bcf2134308be26.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" voeir.exe -
Executes dropped EXE 1 IoCs
pid Process 4940 voeir.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation c613e93840696145906efa78c2b459eafcbb7f931c29b846e0bcf2134308be26.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voeir = "C:\\Users\\Admin\\voeir.exe /p" voeir.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voeir = "C:\\Users\\Admin\\voeir.exe /x" voeir.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voeir = "C:\\Users\\Admin\\voeir.exe /b" voeir.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voeir = "C:\\Users\\Admin\\voeir.exe /r" voeir.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voeir = "C:\\Users\\Admin\\voeir.exe /s" voeir.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voeir = "C:\\Users\\Admin\\voeir.exe /e" voeir.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ voeir.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voeir = "C:\\Users\\Admin\\voeir.exe /n" voeir.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voeir = "C:\\Users\\Admin\\voeir.exe /c" voeir.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voeir = "C:\\Users\\Admin\\voeir.exe /o" voeir.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voeir = "C:\\Users\\Admin\\voeir.exe /q" voeir.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voeir = "C:\\Users\\Admin\\voeir.exe /u" voeir.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voeir = "C:\\Users\\Admin\\voeir.exe /v" voeir.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voeir = "C:\\Users\\Admin\\voeir.exe /y" voeir.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voeir = "C:\\Users\\Admin\\voeir.exe /z" voeir.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voeir = "C:\\Users\\Admin\\voeir.exe /h" voeir.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voeir = "C:\\Users\\Admin\\voeir.exe /g" voeir.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voeir = "C:\\Users\\Admin\\voeir.exe /j" voeir.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voeir = "C:\\Users\\Admin\\voeir.exe /t" voeir.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voeir = "C:\\Users\\Admin\\voeir.exe /f" voeir.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voeir = "C:\\Users\\Admin\\voeir.exe /a" voeir.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ c613e93840696145906efa78c2b459eafcbb7f931c29b846e0bcf2134308be26.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voeir = "C:\\Users\\Admin\\voeir.exe /m" voeir.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voeir = "C:\\Users\\Admin\\voeir.exe /d" voeir.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voeir = "C:\\Users\\Admin\\voeir.exe /l" voeir.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voeir = "C:\\Users\\Admin\\voeir.exe /w" voeir.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voeir = "C:\\Users\\Admin\\voeir.exe /i" voeir.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voeir = "C:\\Users\\Admin\\voeir.exe /k" voeir.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\voeir = "C:\\Users\\Admin\\voeir.exe /a" c613e93840696145906efa78c2b459eafcbb7f931c29b846e0bcf2134308be26.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 4068 c613e93840696145906efa78c2b459eafcbb7f931c29b846e0bcf2134308be26.exe 4068 c613e93840696145906efa78c2b459eafcbb7f931c29b846e0bcf2134308be26.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe 4940 voeir.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4068 c613e93840696145906efa78c2b459eafcbb7f931c29b846e0bcf2134308be26.exe 4940 voeir.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4068 wrote to memory of 4940 4068 c613e93840696145906efa78c2b459eafcbb7f931c29b846e0bcf2134308be26.exe 82 PID 4068 wrote to memory of 4940 4068 c613e93840696145906efa78c2b459eafcbb7f931c29b846e0bcf2134308be26.exe 82 PID 4068 wrote to memory of 4940 4068 c613e93840696145906efa78c2b459eafcbb7f931c29b846e0bcf2134308be26.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\c613e93840696145906efa78c2b459eafcbb7f931c29b846e0bcf2134308be26.exe"C:\Users\Admin\AppData\Local\Temp\c613e93840696145906efa78c2b459eafcbb7f931c29b846e0bcf2134308be26.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4068 -
C:\Users\Admin\voeir.exe"C:\Users\Admin\voeir.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:4940
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
228KB
MD5142233a8bf34967f5b33a0e45121bea4
SHA1d7b7db8e6c130fdcc10b2042826a1bcd1c480570
SHA25602a824c4429a75edbdfb75616657393b38d688dd091215c8baf3cef351fc8464
SHA5122131f53f4139e7290e25b837a169b2d48c1d01ebbdbd08398e819d20947b6ac86538f74bded1397c9dd4aec566320d2d7fc1c68b6adfb39a0cb2657aff3c7d24
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Filesize
228KB
MD5142233a8bf34967f5b33a0e45121bea4
SHA1d7b7db8e6c130fdcc10b2042826a1bcd1c480570
SHA25602a824c4429a75edbdfb75616657393b38d688dd091215c8baf3cef351fc8464
SHA5122131f53f4139e7290e25b837a169b2d48c1d01ebbdbd08398e819d20947b6ac86538f74bded1397c9dd4aec566320d2d7fc1c68b6adfb39a0cb2657aff3c7d24