Analysis
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max time kernel
150s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
02/12/2022, 00:42
Static task
static1
Behavioral task
behavioral1
Sample
a98f1814bc0fdd9fc52232edcc4abac6ac0f0933a4b10846710c701a0db9851f.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
a98f1814bc0fdd9fc52232edcc4abac6ac0f0933a4b10846710c701a0db9851f.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
a98f1814bc0fdd9fc52232edcc4abac6ac0f0933a4b10846710c701a0db9851f.exe
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Size
276KB
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MD5
77dff1b57a841f05b3a59cdd3c0f1625
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SHA1
665dd060614f533b8c90b27143920d2040b89f3e
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SHA256
a98f1814bc0fdd9fc52232edcc4abac6ac0f0933a4b10846710c701a0db9851f
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SHA512
6baa85577be0a060caa63aa52369876bdc24f20f06c8b593addd08741b95d27463fb7a484e472ddabdd154fed72196286c8d84afc62f572ab3f9bf7f84932356
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SSDEEP
3072:HCWTo/0Yx+0tQ9nLHbB9WPliBs2HWWEakGJm9BsP3g:HCPM4QxL7B9WPli+yWWEaziL
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" poiunuk.exe Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" a98f1814bc0fdd9fc52232edcc4abac6ac0f0933a4b10846710c701a0db9851f.exe -
Executes dropped EXE 1 IoCs
pid Process 5036 poiunuk.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 a98f1814bc0fdd9fc52232edcc4abac6ac0f0933a4b10846710c701a0db9851f.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\poiunuk = "C:\\Users\\Admin\\poiunuk.exe /b" poiunuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\poiunuk = "C:\\Users\\Admin\\poiunuk.exe /m" poiunuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\poiunuk = "C:\\Users\\Admin\\poiunuk.exe /d" poiunuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\poiunuk = "C:\\Users\\Admin\\poiunuk.exe /l" poiunuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\poiunuk = "C:\\Users\\Admin\\poiunuk.exe /h" poiunuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\poiunuk = "C:\\Users\\Admin\\poiunuk.exe /k" poiunuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\poiunuk = "C:\\Users\\Admin\\poiunuk.exe /x" poiunuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\poiunuk = "C:\\Users\\Admin\\poiunuk.exe /i" poiunuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\poiunuk = "C:\\Users\\Admin\\poiunuk.exe /z" poiunuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\poiunuk = "C:\\Users\\Admin\\poiunuk.exe /r" poiunuk.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ poiunuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\poiunuk = "C:\\Users\\Admin\\poiunuk.exe /o" poiunuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\poiunuk = "C:\\Users\\Admin\\poiunuk.exe /y" poiunuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\poiunuk = "C:\\Users\\Admin\\poiunuk.exe /w" poiunuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\poiunuk = "C:\\Users\\Admin\\poiunuk.exe /u" poiunuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\poiunuk = "C:\\Users\\Admin\\poiunuk.exe /e" poiunuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\poiunuk = "C:\\Users\\Admin\\poiunuk.exe /p" poiunuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\poiunuk = "C:\\Users\\Admin\\poiunuk.exe /a" poiunuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\poiunuk = "C:\\Users\\Admin\\poiunuk.exe /j" poiunuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\poiunuk = "C:\\Users\\Admin\\poiunuk.exe /g" poiunuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\poiunuk = "C:\\Users\\Admin\\poiunuk.exe /f" poiunuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\poiunuk = "C:\\Users\\Admin\\poiunuk.exe /b" a98f1814bc0fdd9fc52232edcc4abac6ac0f0933a4b10846710c701a0db9851f.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\poiunuk = "C:\\Users\\Admin\\poiunuk.exe /t" poiunuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\poiunuk = "C:\\Users\\Admin\\poiunuk.exe /n" poiunuk.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ a98f1814bc0fdd9fc52232edcc4abac6ac0f0933a4b10846710c701a0db9851f.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\poiunuk = "C:\\Users\\Admin\\poiunuk.exe /q" poiunuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\poiunuk = "C:\\Users\\Admin\\poiunuk.exe /v" poiunuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\poiunuk = "C:\\Users\\Admin\\poiunuk.exe /s" poiunuk.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\poiunuk = "C:\\Users\\Admin\\poiunuk.exe /c" poiunuk.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 3564 a98f1814bc0fdd9fc52232edcc4abac6ac0f0933a4b10846710c701a0db9851f.exe 3564 a98f1814bc0fdd9fc52232edcc4abac6ac0f0933a4b10846710c701a0db9851f.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe 5036 poiunuk.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 3564 a98f1814bc0fdd9fc52232edcc4abac6ac0f0933a4b10846710c701a0db9851f.exe 5036 poiunuk.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3564 wrote to memory of 5036 3564 a98f1814bc0fdd9fc52232edcc4abac6ac0f0933a4b10846710c701a0db9851f.exe 80 PID 3564 wrote to memory of 5036 3564 a98f1814bc0fdd9fc52232edcc4abac6ac0f0933a4b10846710c701a0db9851f.exe 80 PID 3564 wrote to memory of 5036 3564 a98f1814bc0fdd9fc52232edcc4abac6ac0f0933a4b10846710c701a0db9851f.exe 80
Processes
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C:\Users\Admin\AppData\Local\Temp\a98f1814bc0fdd9fc52232edcc4abac6ac0f0933a4b10846710c701a0db9851f.exe"C:\Users\Admin\AppData\Local\Temp\a98f1814bc0fdd9fc52232edcc4abac6ac0f0933a4b10846710c701a0db9851f.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:3564 -
C:\Users\Admin\poiunuk.exe"C:\Users\Admin\poiunuk.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:5036
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
276KB
MD55c24af5037c8d0afaa5b215046d0962e
SHA1f7bbc1c78aaf1fa95ca09ea84abe2c8fcfdd9b34
SHA2561034772f7e5ed7217c5de64e0f6056b559928dbab8107bac48f9f8aa5eb0ffca
SHA512dd3c5110309c55f57857f6f50e432470f923dfc666918025e14d876df25257ae5003dff52a84f4c4492e189d61c5117e3df27e952aba080f8eef802a54420d4a
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Filesize
276KB
MD55c24af5037c8d0afaa5b215046d0962e
SHA1f7bbc1c78aaf1fa95ca09ea84abe2c8fcfdd9b34
SHA2561034772f7e5ed7217c5de64e0f6056b559928dbab8107bac48f9f8aa5eb0ffca
SHA512dd3c5110309c55f57857f6f50e432470f923dfc666918025e14d876df25257ae5003dff52a84f4c4492e189d61c5117e3df27e952aba080f8eef802a54420d4a