Analysis
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max time kernel
152s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
03-12-2022 19:22
Static task
static1
Behavioral task
behavioral1
Sample
88b706949ba5a180d20e8b4291bd2de98b87f62bfe8a74181ebe8f533dddd91e.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
88b706949ba5a180d20e8b4291bd2de98b87f62bfe8a74181ebe8f533dddd91e.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
88b706949ba5a180d20e8b4291bd2de98b87f62bfe8a74181ebe8f533dddd91e.exe
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Size
232KB
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MD5
0b567b9b3e501cc33378112d785d3f1b
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SHA1
512cf0c8a070d24f8c14f40f235b7b3c7b89be0c
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SHA256
88b706949ba5a180d20e8b4291bd2de98b87f62bfe8a74181ebe8f533dddd91e
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SHA512
51b8109fbb9ad6e71fea9621d64b858373d92f646e088700605b71fec6d8cefc90c34a68cb198e64284ee6c0517ce3793e0612289cccd6c9f06240da3303e88e
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SSDEEP
6144:y23PFKs78g2KyEOaWEqxF6snji81RUinKdNObY:/Ph+mF9
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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 88b706949ba5a180d20e8b4291bd2de98b87f62bfe8a74181ebe8f533dddd91e.exe Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" meixiew.exe -
Executes dropped EXE 1 IoCs
pid Process 4864 meixiew.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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation 88b706949ba5a180d20e8b4291bd2de98b87f62bfe8a74181ebe8f533dddd91e.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meixiew = "C:\\Users\\Admin\\meixiew.exe /k" meixiew.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meixiew = "C:\\Users\\Admin\\meixiew.exe /i" meixiew.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meixiew = "C:\\Users\\Admin\\meixiew.exe /w" meixiew.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meixiew = "C:\\Users\\Admin\\meixiew.exe /q" meixiew.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meixiew = "C:\\Users\\Admin\\meixiew.exe /b" meixiew.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meixiew = "C:\\Users\\Admin\\meixiew.exe /u" meixiew.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meixiew = "C:\\Users\\Admin\\meixiew.exe /n" 88b706949ba5a180d20e8b4291bd2de98b87f62bfe8a74181ebe8f533dddd91e.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ meixiew.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meixiew = "C:\\Users\\Admin\\meixiew.exe /v" meixiew.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meixiew = "C:\\Users\\Admin\\meixiew.exe /j" meixiew.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meixiew = "C:\\Users\\Admin\\meixiew.exe /c" meixiew.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meixiew = "C:\\Users\\Admin\\meixiew.exe /s" meixiew.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meixiew = "C:\\Users\\Admin\\meixiew.exe /p" meixiew.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meixiew = "C:\\Users\\Admin\\meixiew.exe /l" meixiew.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meixiew = "C:\\Users\\Admin\\meixiew.exe /r" meixiew.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meixiew = "C:\\Users\\Admin\\meixiew.exe /e" meixiew.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meixiew = "C:\\Users\\Admin\\meixiew.exe /g" meixiew.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meixiew = "C:\\Users\\Admin\\meixiew.exe /x" meixiew.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meixiew = "C:\\Users\\Admin\\meixiew.exe /d" meixiew.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meixiew = "C:\\Users\\Admin\\meixiew.exe /m" meixiew.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meixiew = "C:\\Users\\Admin\\meixiew.exe /f" meixiew.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meixiew = "C:\\Users\\Admin\\meixiew.exe /o" meixiew.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meixiew = "C:\\Users\\Admin\\meixiew.exe /y" meixiew.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 88b706949ba5a180d20e8b4291bd2de98b87f62bfe8a74181ebe8f533dddd91e.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meixiew = "C:\\Users\\Admin\\meixiew.exe /z" meixiew.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meixiew = "C:\\Users\\Admin\\meixiew.exe /n" meixiew.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meixiew = "C:\\Users\\Admin\\meixiew.exe /a" meixiew.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meixiew = "C:\\Users\\Admin\\meixiew.exe /t" meixiew.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\meixiew = "C:\\Users\\Admin\\meixiew.exe /h" meixiew.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 4884 88b706949ba5a180d20e8b4291bd2de98b87f62bfe8a74181ebe8f533dddd91e.exe 4884 88b706949ba5a180d20e8b4291bd2de98b87f62bfe8a74181ebe8f533dddd91e.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe 4864 meixiew.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4884 88b706949ba5a180d20e8b4291bd2de98b87f62bfe8a74181ebe8f533dddd91e.exe 4864 meixiew.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4884 wrote to memory of 4864 4884 88b706949ba5a180d20e8b4291bd2de98b87f62bfe8a74181ebe8f533dddd91e.exe 80 PID 4884 wrote to memory of 4864 4884 88b706949ba5a180d20e8b4291bd2de98b87f62bfe8a74181ebe8f533dddd91e.exe 80 PID 4884 wrote to memory of 4864 4884 88b706949ba5a180d20e8b4291bd2de98b87f62bfe8a74181ebe8f533dddd91e.exe 80
Processes
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C:\Users\Admin\AppData\Local\Temp\88b706949ba5a180d20e8b4291bd2de98b87f62bfe8a74181ebe8f533dddd91e.exe"C:\Users\Admin\AppData\Local\Temp\88b706949ba5a180d20e8b4291bd2de98b87f62bfe8a74181ebe8f533dddd91e.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:4884 -
C:\Users\Admin\meixiew.exe"C:\Users\Admin\meixiew.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:4864
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
232KB
MD5447400e13bf2ec8bd1c99602a5b0c38c
SHA13d4d693323d212d0431623fc9ec069bbd9f31aae
SHA25601f7e5db2c8c276a64e9ecca814f4a3400bc40752ef0af154dc90a47896f1ce5
SHA512e9e516ecb6eac217772dfdd1f6a7e6d8ff6548cda557a9e03fb44153305b5deee9af486ff17179b783711807c514a443086a3996041256b4c225b3dcd0f46a57
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Filesize
232KB
MD5447400e13bf2ec8bd1c99602a5b0c38c
SHA13d4d693323d212d0431623fc9ec069bbd9f31aae
SHA25601f7e5db2c8c276a64e9ecca814f4a3400bc40752ef0af154dc90a47896f1ce5
SHA512e9e516ecb6eac217772dfdd1f6a7e6d8ff6548cda557a9e03fb44153305b5deee9af486ff17179b783711807c514a443086a3996041256b4c225b3dcd0f46a57