Analysis
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max time kernel
238s -
max time network
245s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
03-12-2022 20:01
Static task
static1
Behavioral task
behavioral1
Sample
2409661b45debbd4bf9b427174ee3f5a552212bf851e1d182ed91a31f390ed5e.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
2409661b45debbd4bf9b427174ee3f5a552212bf851e1d182ed91a31f390ed5e.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
2409661b45debbd4bf9b427174ee3f5a552212bf851e1d182ed91a31f390ed5e.exe
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Size
176KB
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MD5
edbc251b7c4470d35892371895968150
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SHA1
59438e8d846dbf10f46fda600dec9f1423937c0c
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SHA256
2409661b45debbd4bf9b427174ee3f5a552212bf851e1d182ed91a31f390ed5e
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SHA512
3d1c40df1b20f173c5f4542ad6ec9943effad3dbf30197c6f34bce836428c649cd7864adbc92ecabf5500b13effd2d876aa4ce45c3bd71f31e33d931d2e9ca3b
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SSDEEP
3072:dI04IcfpHlp1D2KcwjIU2aTObcpT/pHkEAbN/yK/fObT/bGiCV/COqoSQ1iBuAZj:S04PfpHlp1KKcwjIDaTObcZ/pHkMK/fg
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-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 2409661b45debbd4bf9b427174ee3f5a552212bf851e1d182ed91a31f390ed5e.exe Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" caivoul.exe -
Executes dropped EXE 1 IoCs
pid Process 3432 caivoul.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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation 2409661b45debbd4bf9b427174ee3f5a552212bf851e1d182ed91a31f390ed5e.exe -
Adds Run key to start application 2 TTPs 54 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /g" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /s" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /t" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /V" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /l" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /L" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /C" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /N" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /G" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /Q" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /h" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /A" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /m" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /n" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /Z" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /X" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /z" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /J" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /Y" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /o" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /y" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /k" caivoul.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /i" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /w" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /I" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /U" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /v" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /c" 2409661b45debbd4bf9b427174ee3f5a552212bf851e1d182ed91a31f390ed5e.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /B" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /d" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /e" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /W" caivoul.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 2409661b45debbd4bf9b427174ee3f5a552212bf851e1d182ed91a31f390ed5e.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /x" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /M" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /u" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /T" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /c" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /b" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /r" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /H" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /p" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /E" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /q" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /R" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /a" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /j" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /K" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /O" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /f" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /D" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /P" caivoul.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\caivoul = "C:\\Users\\Admin\\caivoul.exe /F" caivoul.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 4720 2409661b45debbd4bf9b427174ee3f5a552212bf851e1d182ed91a31f390ed5e.exe 4720 2409661b45debbd4bf9b427174ee3f5a552212bf851e1d182ed91a31f390ed5e.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe 3432 caivoul.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 4720 2409661b45debbd4bf9b427174ee3f5a552212bf851e1d182ed91a31f390ed5e.exe 3432 caivoul.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4720 wrote to memory of 3432 4720 2409661b45debbd4bf9b427174ee3f5a552212bf851e1d182ed91a31f390ed5e.exe 78 PID 4720 wrote to memory of 3432 4720 2409661b45debbd4bf9b427174ee3f5a552212bf851e1d182ed91a31f390ed5e.exe 78 PID 4720 wrote to memory of 3432 4720 2409661b45debbd4bf9b427174ee3f5a552212bf851e1d182ed91a31f390ed5e.exe 78
Processes
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C:\Users\Admin\AppData\Local\Temp\2409661b45debbd4bf9b427174ee3f5a552212bf851e1d182ed91a31f390ed5e.exe"C:\Users\Admin\AppData\Local\Temp\2409661b45debbd4bf9b427174ee3f5a552212bf851e1d182ed91a31f390ed5e.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:4720 -
C:\Users\Admin\caivoul.exe"C:\Users\Admin\caivoul.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:3432
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
176KB
MD59b6830653c9ace6c9afeb2d2efda3135
SHA14a74526aba3f5cdf2a9cc9e1b0018db60a30a431
SHA2564d5de0beacd1c64dda87de0d9a52a411fd05ad859d0f4cefcd75637da21d8495
SHA512c6762b598ef16388194370287abbc1515ce1041be64db7217d8317e16506f7048b501fb92c3a112687196d96ca781756d14a58533cdb37f0ca5e5d6b977e516c
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Filesize
176KB
MD59b6830653c9ace6c9afeb2d2efda3135
SHA14a74526aba3f5cdf2a9cc9e1b0018db60a30a431
SHA2564d5de0beacd1c64dda87de0d9a52a411fd05ad859d0f4cefcd75637da21d8495
SHA512c6762b598ef16388194370287abbc1515ce1041be64db7217d8317e16506f7048b501fb92c3a112687196d96ca781756d14a58533cdb37f0ca5e5d6b977e516c