Analysis
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max time kernel
354s -
max time network
375s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
01/12/2022, 23:51
Static task
static1
Behavioral task
behavioral1
Sample
8310cc7c360863351d34b14d6401cd027b8b412429190bc199fa38c4b4899e9c.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
8310cc7c360863351d34b14d6401cd027b8b412429190bc199fa38c4b4899e9c.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
8310cc7c360863351d34b14d6401cd027b8b412429190bc199fa38c4b4899e9c.exe
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Size
212KB
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MD5
fd6b7739e7699b6492f4e26b994309db
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SHA1
c97c253def97399dfda45c4424e5f68fd87299e2
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SHA256
8310cc7c360863351d34b14d6401cd027b8b412429190bc199fa38c4b4899e9c
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SHA512
5cbfb037d08a84505e3135db00039503a8ae0cf3c9810219f0b392890631d52a77c8f518db3c1b177c16fc95125f77220822110159dadbd1bfd92342a18ba444
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SSDEEP
3072:R9UB99PLzQsJhGYiNAcXOqQnys80/p5GomjRMEQYbLlmuPU+BfPc1rPU35pJucyU:RqBj2OqQn580/JXEJpc1rPXi
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-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 8310cc7c360863351d34b14d6401cd027b8b412429190bc199fa38c4b4899e9c.exe Set value (int) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" meayof.exe -
Executes dropped EXE 1 IoCs
pid Process 1260 meayof.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-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation 8310cc7c360863351d34b14d6401cd027b8b412429190bc199fa38c4b4899e9c.exe -
Adds Run key to start application 2 TTPs 22 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meayof = "C:\\Users\\Admin\\meayof.exe /q" meayof.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meayof = "C:\\Users\\Admin\\meayof.exe /x" meayof.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meayof = "C:\\Users\\Admin\\meayof.exe /p" meayof.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meayof = "C:\\Users\\Admin\\meayof.exe /k" meayof.exe Key created \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows\CurrentVersion\Run\ meayof.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meayof = "C:\\Users\\Admin\\meayof.exe /n" meayof.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meayof = "C:\\Users\\Admin\\meayof.exe /z" meayof.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meayof = "C:\\Users\\Admin\\meayof.exe /v" meayof.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meayof = "C:\\Users\\Admin\\meayof.exe /k" 8310cc7c360863351d34b14d6401cd027b8b412429190bc199fa38c4b4899e9c.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meayof = "C:\\Users\\Admin\\meayof.exe /t" meayof.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meayof = "C:\\Users\\Admin\\meayof.exe /y" meayof.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meayof = "C:\\Users\\Admin\\meayof.exe /o" meayof.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meayof = "C:\\Users\\Admin\\meayof.exe /r" meayof.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meayof = "C:\\Users\\Admin\\meayof.exe /w" meayof.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meayof = "C:\\Users\\Admin\\meayof.exe /b" meayof.exe Key created \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 8310cc7c360863351d34b14d6401cd027b8b412429190bc199fa38c4b4899e9c.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meayof = "C:\\Users\\Admin\\meayof.exe /i" meayof.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meayof = "C:\\Users\\Admin\\meayof.exe /c" meayof.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meayof = "C:\\Users\\Admin\\meayof.exe /e" meayof.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meayof = "C:\\Users\\Admin\\meayof.exe /l" meayof.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meayof = "C:\\Users\\Admin\\meayof.exe /d" meayof.exe Set value (str) \REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meayof = "C:\\Users\\Admin\\meayof.exe /g" meayof.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 4776 8310cc7c360863351d34b14d6401cd027b8b412429190bc199fa38c4b4899e9c.exe 4776 8310cc7c360863351d34b14d6401cd027b8b412429190bc199fa38c4b4899e9c.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe 1260 meayof.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4776 8310cc7c360863351d34b14d6401cd027b8b412429190bc199fa38c4b4899e9c.exe 1260 meayof.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4776 wrote to memory of 1260 4776 8310cc7c360863351d34b14d6401cd027b8b412429190bc199fa38c4b4899e9c.exe 86 PID 4776 wrote to memory of 1260 4776 8310cc7c360863351d34b14d6401cd027b8b412429190bc199fa38c4b4899e9c.exe 86 PID 4776 wrote to memory of 1260 4776 8310cc7c360863351d34b14d6401cd027b8b412429190bc199fa38c4b4899e9c.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\8310cc7c360863351d34b14d6401cd027b8b412429190bc199fa38c4b4899e9c.exe"C:\Users\Admin\AppData\Local\Temp\8310cc7c360863351d34b14d6401cd027b8b412429190bc199fa38c4b4899e9c.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:4776 -
C:\Users\Admin\meayof.exe"C:\Users\Admin\meayof.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:1260
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
212KB
MD5cd667e681b530c33d25c53f21389f261
SHA14737701c8fb1863538ea8c522dabeeefcb7894f0
SHA2562daa77c2794a3d0f25bc256bbc051a2975b706aea3b61d98a6c5e05777b3a06a
SHA5124e7bbdba452fd0c812dc5a2b7e5624f00f2117587545bb47f0ad78475cc7e5a7cb0c8bd9030f0d0f1f9bd070fec43c8ccf646751123280feb563592390209746
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Filesize
212KB
MD5cd667e681b530c33d25c53f21389f261
SHA14737701c8fb1863538ea8c522dabeeefcb7894f0
SHA2562daa77c2794a3d0f25bc256bbc051a2975b706aea3b61d98a6c5e05777b3a06a
SHA5124e7bbdba452fd0c812dc5a2b7e5624f00f2117587545bb47f0ad78475cc7e5a7cb0c8bd9030f0d0f1f9bd070fec43c8ccf646751123280feb563592390209746