Analysis
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max time kernel
152s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
29/11/2022, 16:52
Static task
static1
Behavioral task
behavioral1
Sample
ea5367f72b81698c8434adf2b3b1eb6d16377261df346fcb852231b2061238fe.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
ea5367f72b81698c8434adf2b3b1eb6d16377261df346fcb852231b2061238fe.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
ea5367f72b81698c8434adf2b3b1eb6d16377261df346fcb852231b2061238fe.exe
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Size
204KB
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MD5
bc15713ad81d65aeefda6686de5320b2
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SHA1
f71335458adffa8344f1d93ff19ed103e5f37b02
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SHA256
ea5367f72b81698c8434adf2b3b1eb6d16377261df346fcb852231b2061238fe
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SHA512
0c92d544b182453691798b5e42502c37b48b193570e7077012d777ee5a32b3c69d3b7655fbeb7235cc24051b98d138634936bbd0efc42c5ff3df4c7e0f8f46a8
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SSDEEP
3072:GmmFW8t0tQ9nLHbB9W0c1TqECzR/mkSYGrl9ymgYUWDCr:kUK4QxL7B9W0c1RCzR/fSml4C
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-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" ea5367f72b81698c8434adf2b3b1eb6d16377261df346fcb852231b2061238fe.exe Set value (int) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" mumem.exe -
Executes dropped EXE 1 IoCs
pid Process 2076 mumem.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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation ea5367f72b81698c8434adf2b3b1eb6d16377261df346fcb852231b2061238fe.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mumem = "C:\\Users\\Admin\\mumem.exe /a" mumem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mumem = "C:\\Users\\Admin\\mumem.exe /e" mumem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mumem = "C:\\Users\\Admin\\mumem.exe /j" mumem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mumem = "C:\\Users\\Admin\\mumem.exe /t" mumem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mumem = "C:\\Users\\Admin\\mumem.exe /k" mumem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mumem = "C:\\Users\\Admin\\mumem.exe /n" mumem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mumem = "C:\\Users\\Admin\\mumem.exe /v" mumem.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\ mumem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mumem = "C:\\Users\\Admin\\mumem.exe /d" mumem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mumem = "C:\\Users\\Admin\\mumem.exe /w" mumem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mumem = "C:\\Users\\Admin\\mumem.exe /r" mumem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mumem = "C:\\Users\\Admin\\mumem.exe /c" mumem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mumem = "C:\\Users\\Admin\\mumem.exe /i" mumem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mumem = "C:\\Users\\Admin\\mumem.exe /l" mumem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mumem = "C:\\Users\\Admin\\mumem.exe /y" mumem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mumem = "C:\\Users\\Admin\\mumem.exe /f" mumem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mumem = "C:\\Users\\Admin\\mumem.exe /s" ea5367f72b81698c8434adf2b3b1eb6d16377261df346fcb852231b2061238fe.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mumem = "C:\\Users\\Admin\\mumem.exe /b" mumem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mumem = "C:\\Users\\Admin\\mumem.exe /h" mumem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mumem = "C:\\Users\\Admin\\mumem.exe /x" mumem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mumem = "C:\\Users\\Admin\\mumem.exe /g" mumem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mumem = "C:\\Users\\Admin\\mumem.exe /z" mumem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mumem = "C:\\Users\\Admin\\mumem.exe /s" mumem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mumem = "C:\\Users\\Admin\\mumem.exe /u" mumem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mumem = "C:\\Users\\Admin\\mumem.exe /m" mumem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mumem = "C:\\Users\\Admin\\mumem.exe /q" mumem.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mumem = "C:\\Users\\Admin\\mumem.exe /p" mumem.exe Key created \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows\CurrentVersion\Run\ ea5367f72b81698c8434adf2b3b1eb6d16377261df346fcb852231b2061238fe.exe Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\mumem = "C:\\Users\\Admin\\mumem.exe /o" mumem.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 2064 ea5367f72b81698c8434adf2b3b1eb6d16377261df346fcb852231b2061238fe.exe 2064 ea5367f72b81698c8434adf2b3b1eb6d16377261df346fcb852231b2061238fe.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe 2076 mumem.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2064 ea5367f72b81698c8434adf2b3b1eb6d16377261df346fcb852231b2061238fe.exe 2076 mumem.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2064 wrote to memory of 2076 2064 ea5367f72b81698c8434adf2b3b1eb6d16377261df346fcb852231b2061238fe.exe 76 PID 2064 wrote to memory of 2076 2064 ea5367f72b81698c8434adf2b3b1eb6d16377261df346fcb852231b2061238fe.exe 76 PID 2064 wrote to memory of 2076 2064 ea5367f72b81698c8434adf2b3b1eb6d16377261df346fcb852231b2061238fe.exe 76
Processes
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C:\Users\Admin\AppData\Local\Temp\ea5367f72b81698c8434adf2b3b1eb6d16377261df346fcb852231b2061238fe.exe"C:\Users\Admin\AppData\Local\Temp\ea5367f72b81698c8434adf2b3b1eb6d16377261df346fcb852231b2061238fe.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:2064 -
C:\Users\Admin\mumem.exe"C:\Users\Admin\mumem.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:2076
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
204KB
MD56b6405543e75b4992010ba945ae9448e
SHA126aca2a1c057baa6ddd5bf9c1064a89eafb444af
SHA2562ff3fe1af651f0b3f92a5ec6c5b956eb33cd2883245d2b1a2d426c764ddded32
SHA5120483bed5076b4e6fb1ddb3b7b67ab8cba7a4fd48948368181fd1b0bad718cfbb9edd83ad92714d53a39a00488f7344243acb023886624dd183a76b126adaa6d5
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Filesize
204KB
MD56b6405543e75b4992010ba945ae9448e
SHA126aca2a1c057baa6ddd5bf9c1064a89eafb444af
SHA2562ff3fe1af651f0b3f92a5ec6c5b956eb33cd2883245d2b1a2d426c764ddded32
SHA5120483bed5076b4e6fb1ddb3b7b67ab8cba7a4fd48948368181fd1b0bad718cfbb9edd83ad92714d53a39a00488f7344243acb023886624dd183a76b126adaa6d5