Analysis
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max time kernel
208s -
max time network
222s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
02/12/2022, 20:48
Static task
static1
Behavioral task
behavioral1
Sample
a067c84f707d6c31581b5aba547f5b1d8c8f29888acc5009ea40b5601f7d7ba1.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
a067c84f707d6c31581b5aba547f5b1d8c8f29888acc5009ea40b5601f7d7ba1.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
a067c84f707d6c31581b5aba547f5b1d8c8f29888acc5009ea40b5601f7d7ba1.exe
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Size
256KB
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MD5
3d3cdc42638fc21ad51d211ecf400dd1
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SHA1
9e778a75cbd60e357bb3bf5550fd93bc25d5d1d0
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SHA256
a067c84f707d6c31581b5aba547f5b1d8c8f29888acc5009ea40b5601f7d7ba1
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SHA512
b5a275a391c716338c0242fde531cf82512a4d59b047e17ce12d1cf1882eade3c471efb5ead7047c3af69238e0af3eff4439b136506fb971b811062e3e4ee45f
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SSDEEP
6144:qv7vvoNymi+7eeyz2P9NnnnFCpImnTZygoHlKnvmb7/D26UBnmbLBXBJ:qjvoNymi+7eOP9anTZygoHlKnvmb7/DT
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-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" fznuh.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" a067c84f707d6c31581b5aba547f5b1d8c8f29888acc5009ea40b5601f7d7ba1.exe -
Executes dropped EXE 1 IoCs
pid Process 228 fznuh.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-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation a067c84f707d6c31581b5aba547f5b1d8c8f29888acc5009ea40b5601f7d7ba1.exe -
Adds Run key to start application 2 TTPs 53 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /s" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /h" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /b" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /d" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /q" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /R" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /c" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /I" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /Y" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /W" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /V" fznuh.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows\CurrentVersion\Run\ fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /F" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /e" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /U" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /E" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /f" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /D" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /a" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /S" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /p" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /r" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /J" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /H" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /u" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /N" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /i" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /g" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /k" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /n" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /T" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /o" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /y" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /t" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /K" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /Z" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /l" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /M" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /X" fznuh.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows\CurrentVersion\Run\ a067c84f707d6c31581b5aba547f5b1d8c8f29888acc5009ea40b5601f7d7ba1.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /s" a067c84f707d6c31581b5aba547f5b1d8c8f29888acc5009ea40b5601f7d7ba1.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /w" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /v" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /z" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /B" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /C" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /m" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /G" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /x" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /A" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /j" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /Q" fznuh.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\fznuh = "C:\\Users\\Admin\\fznuh.exe /L" fznuh.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 4932 a067c84f707d6c31581b5aba547f5b1d8c8f29888acc5009ea40b5601f7d7ba1.exe 4932 a067c84f707d6c31581b5aba547f5b1d8c8f29888acc5009ea40b5601f7d7ba1.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe 228 fznuh.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4932 a067c84f707d6c31581b5aba547f5b1d8c8f29888acc5009ea40b5601f7d7ba1.exe 228 fznuh.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4932 wrote to memory of 228 4932 a067c84f707d6c31581b5aba547f5b1d8c8f29888acc5009ea40b5601f7d7ba1.exe 82 PID 4932 wrote to memory of 228 4932 a067c84f707d6c31581b5aba547f5b1d8c8f29888acc5009ea40b5601f7d7ba1.exe 82 PID 4932 wrote to memory of 228 4932 a067c84f707d6c31581b5aba547f5b1d8c8f29888acc5009ea40b5601f7d7ba1.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\a067c84f707d6c31581b5aba547f5b1d8c8f29888acc5009ea40b5601f7d7ba1.exe"C:\Users\Admin\AppData\Local\Temp\a067c84f707d6c31581b5aba547f5b1d8c8f29888acc5009ea40b5601f7d7ba1.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:4932 -
C:\Users\Admin\fznuh.exe"C:\Users\Admin\fznuh.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:228
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
256KB
MD5378f76d4676c292abe59d29a205540ba
SHA1d8d1495eeb160b9ae577dd131edf6bb2c3a24fda
SHA2565255a45aaa98adef5d7509b2d5f3dc7f9f8d46a0f4819dac5f28c3bf4e0e862c
SHA5126dbea8b3e7a04220cb934b04a386aa407096bc6f55da11e91610016b9c17ec1f7d6291c7fd6d5844981bc78b40dbf8ab8e1cf4cc276c62802a39fe4d09e23ae1
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Filesize
256KB
MD5378f76d4676c292abe59d29a205540ba
SHA1d8d1495eeb160b9ae577dd131edf6bb2c3a24fda
SHA2565255a45aaa98adef5d7509b2d5f3dc7f9f8d46a0f4819dac5f28c3bf4e0e862c
SHA5126dbea8b3e7a04220cb934b04a386aa407096bc6f55da11e91610016b9c17ec1f7d6291c7fd6d5844981bc78b40dbf8ab8e1cf4cc276c62802a39fe4d09e23ae1