Analysis
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max time kernel
158s -
max time network
172s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
05/12/2022, 10:23
Static task
static1
Behavioral task
behavioral1
Sample
9c733a54f4d70c1e2278e1376ccbc4d61dfdab8bab6d88bac81d9f45106c1db1.exe
Resource
win7-20221111-en
windows7-x64
10 signatures
150 seconds
Behavioral task
behavioral2
Sample
9c733a54f4d70c1e2278e1376ccbc4d61dfdab8bab6d88bac81d9f45106c1db1.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
10 signatures
150 seconds
General
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Target
9c733a54f4d70c1e2278e1376ccbc4d61dfdab8bab6d88bac81d9f45106c1db1.exe
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Size
296KB
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MD5
1b33e6b6432c0101919da1186ab13e50
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SHA1
9abcbc00ef510e41c941223f8039059cf75a980b
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SHA256
9c733a54f4d70c1e2278e1376ccbc4d61dfdab8bab6d88bac81d9f45106c1db1
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SHA512
98eb1de0aa3c598ea0c1553436740e52c62acc3010b1cf6c9279bdf24b5ea80d6163d02cdf001cebc240fb16952dfe8a548027602022e8215b8f183edf739044
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SSDEEP
6144:5/qRpYmR7qZ1R26ULRdSJz8qbtFibPGXs:5/727qZ1JU9dSJz8qbmLG
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-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 9c733a54f4d70c1e2278e1376ccbc4d61dfdab8bab6d88bac81d9f45106c1db1.exe Set value (int) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" miefeoq.exe -
Executes dropped EXE 1 IoCs
pid Process 4488 miefeoq.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-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation 9c733a54f4d70c1e2278e1376ccbc4d61dfdab8bab6d88bac81d9f45106c1db1.exe -
Adds Run key to start application 2 TTPs 13 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miefeoq = "C:\\Users\\Admin\\miefeoq.exe /r" miefeoq.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miefeoq = "C:\\Users\\Admin\\miefeoq.exe /g" miefeoq.exe Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 9c733a54f4d70c1e2278e1376ccbc4d61dfdab8bab6d88bac81d9f45106c1db1.exe Key created \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Run\ miefeoq.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miefeoq = "C:\\Users\\Admin\\miefeoq.exe /v" miefeoq.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miefeoq = "C:\\Users\\Admin\\miefeoq.exe /o" miefeoq.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miefeoq = "C:\\Users\\Admin\\miefeoq.exe /z" miefeoq.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miefeoq = "C:\\Users\\Admin\\miefeoq.exe /i" miefeoq.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miefeoq = "C:\\Users\\Admin\\miefeoq.exe /n" miefeoq.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miefeoq = "C:\\Users\\Admin\\miefeoq.exe /e" miefeoq.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miefeoq = "C:\\Users\\Admin\\miefeoq.exe /v" 9c733a54f4d70c1e2278e1376ccbc4d61dfdab8bab6d88bac81d9f45106c1db1.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miefeoq = "C:\\Users\\Admin\\miefeoq.exe /t" miefeoq.exe Set value (str) \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\miefeoq = "C:\\Users\\Admin\\miefeoq.exe /j" miefeoq.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 opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum miefeoq.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 miefeoq.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum 9c733a54f4d70c1e2278e1376ccbc4d61dfdab8bab6d88bac81d9f45106c1db1.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 9c733a54f4d70c1e2278e1376ccbc4d61dfdab8bab6d88bac81d9f45106c1db1.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 miefeoq.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 1896 9c733a54f4d70c1e2278e1376ccbc4d61dfdab8bab6d88bac81d9f45106c1db1.exe 1896 9c733a54f4d70c1e2278e1376ccbc4d61dfdab8bab6d88bac81d9f45106c1db1.exe 1896 9c733a54f4d70c1e2278e1376ccbc4d61dfdab8bab6d88bac81d9f45106c1db1.exe 1896 9c733a54f4d70c1e2278e1376ccbc4d61dfdab8bab6d88bac81d9f45106c1db1.exe 1896 9c733a54f4d70c1e2278e1376ccbc4d61dfdab8bab6d88bac81d9f45106c1db1.exe 1896 9c733a54f4d70c1e2278e1376ccbc4d61dfdab8bab6d88bac81d9f45106c1db1.exe 1896 9c733a54f4d70c1e2278e1376ccbc4d61dfdab8bab6d88bac81d9f45106c1db1.exe 1896 9c733a54f4d70c1e2278e1376ccbc4d61dfdab8bab6d88bac81d9f45106c1db1.exe 1896 9c733a54f4d70c1e2278e1376ccbc4d61dfdab8bab6d88bac81d9f45106c1db1.exe 1896 9c733a54f4d70c1e2278e1376ccbc4d61dfdab8bab6d88bac81d9f45106c1db1.exe 1896 9c733a54f4d70c1e2278e1376ccbc4d61dfdab8bab6d88bac81d9f45106c1db1.exe 1896 9c733a54f4d70c1e2278e1376ccbc4d61dfdab8bab6d88bac81d9f45106c1db1.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe 4488 miefeoq.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1896 9c733a54f4d70c1e2278e1376ccbc4d61dfdab8bab6d88bac81d9f45106c1db1.exe 4488 miefeoq.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1896 wrote to memory of 4488 1896 9c733a54f4d70c1e2278e1376ccbc4d61dfdab8bab6d88bac81d9f45106c1db1.exe 82 PID 1896 wrote to memory of 4488 1896 9c733a54f4d70c1e2278e1376ccbc4d61dfdab8bab6d88bac81d9f45106c1db1.exe 82 PID 1896 wrote to memory of 4488 1896 9c733a54f4d70c1e2278e1376ccbc4d61dfdab8bab6d88bac81d9f45106c1db1.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\9c733a54f4d70c1e2278e1376ccbc4d61dfdab8bab6d88bac81d9f45106c1db1.exe"C:\Users\Admin\AppData\Local\Temp\9c733a54f4d70c1e2278e1376ccbc4d61dfdab8bab6d88bac81d9f45106c1db1.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1896 -
C:\Users\Admin\miefeoq.exe"C:\Users\Admin\miefeoq.exe"2⤵
- 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:4488
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
296KB
MD51b33e6b6432c0101919da1186ab13e50
SHA19abcbc00ef510e41c941223f8039059cf75a980b
SHA2569c733a54f4d70c1e2278e1376ccbc4d61dfdab8bab6d88bac81d9f45106c1db1
SHA51298eb1de0aa3c598ea0c1553436740e52c62acc3010b1cf6c9279bdf24b5ea80d6163d02cdf001cebc240fb16952dfe8a548027602022e8215b8f183edf739044
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Filesize
296KB
MD51b33e6b6432c0101919da1186ab13e50
SHA19abcbc00ef510e41c941223f8039059cf75a980b
SHA2569c733a54f4d70c1e2278e1376ccbc4d61dfdab8bab6d88bac81d9f45106c1db1
SHA51298eb1de0aa3c598ea0c1553436740e52c62acc3010b1cf6c9279bdf24b5ea80d6163d02cdf001cebc240fb16952dfe8a548027602022e8215b8f183edf739044