Analysis
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max time kernel
151s -
max time network
152s -
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, 00:24
Static task
static1
Behavioral task
behavioral1
Sample
a1ff8eb2195b02abfaf4966ce4bb92a546849cdeca9284af2045b52fc4cd9712.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
a1ff8eb2195b02abfaf4966ce4bb92a546849cdeca9284af2045b52fc4cd9712.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
a1ff8eb2195b02abfaf4966ce4bb92a546849cdeca9284af2045b52fc4cd9712.exe
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Size
180KB
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MD5
a4875c57a3388602eb7ed7568bf8600e
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SHA1
80966c5a16196da7eb2b092f3ebcc7f22aab126a
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SHA256
a1ff8eb2195b02abfaf4966ce4bb92a546849cdeca9284af2045b52fc4cd9712
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SHA512
2074499d3c7febd6780c050237502d7a49775b4d431f8e4154a4f756fa717a75a56b2a16ad87e4ef7f07d7ea6217c206f8985863c2aa6aa49c743391e77c153b
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SSDEEP
3072:JygdVAXY71idPAaWELGzMshNXTDFE+7jF6XTjwv:JygzAY+oXqFshNTDT756XTY
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" a1ff8eb2195b02abfaf4966ce4bb92a546849cdeca9284af2045b52fc4cd9712.exe Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" xaaov.exe -
Executes dropped EXE 1 IoCs
pid Process 2804 xaaov.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 a1ff8eb2195b02abfaf4966ce4bb92a546849cdeca9284af2045b52fc4cd9712.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\xaaov = "C:\\Users\\Admin\\xaaov.exe /w" xaaov.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xaaov = "C:\\Users\\Admin\\xaaov.exe /y" xaaov.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xaaov = "C:\\Users\\Admin\\xaaov.exe /j" xaaov.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xaaov = "C:\\Users\\Admin\\xaaov.exe /z" xaaov.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xaaov = "C:\\Users\\Admin\\xaaov.exe /t" xaaov.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xaaov = "C:\\Users\\Admin\\xaaov.exe /n" xaaov.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xaaov = "C:\\Users\\Admin\\xaaov.exe /l" xaaov.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xaaov = "C:\\Users\\Admin\\xaaov.exe /m" xaaov.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xaaov = "C:\\Users\\Admin\\xaaov.exe /o" xaaov.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ a1ff8eb2195b02abfaf4966ce4bb92a546849cdeca9284af2045b52fc4cd9712.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xaaov = "C:\\Users\\Admin\\xaaov.exe /s" xaaov.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xaaov = "C:\\Users\\Admin\\xaaov.exe /c" xaaov.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xaaov = "C:\\Users\\Admin\\xaaov.exe /p" xaaov.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xaaov = "C:\\Users\\Admin\\xaaov.exe /k" xaaov.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xaaov = "C:\\Users\\Admin\\xaaov.exe /r" xaaov.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xaaov = "C:\\Users\\Admin\\xaaov.exe /h" xaaov.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xaaov = "C:\\Users\\Admin\\xaaov.exe /g" xaaov.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xaaov = "C:\\Users\\Admin\\xaaov.exe /e" xaaov.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xaaov = "C:\\Users\\Admin\\xaaov.exe /x" xaaov.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xaaov = "C:\\Users\\Admin\\xaaov.exe /f" xaaov.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xaaov = "C:\\Users\\Admin\\xaaov.exe /b" xaaov.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xaaov = "C:\\Users\\Admin\\xaaov.exe /b" a1ff8eb2195b02abfaf4966ce4bb92a546849cdeca9284af2045b52fc4cd9712.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xaaov = "C:\\Users\\Admin\\xaaov.exe /d" xaaov.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xaaov = "C:\\Users\\Admin\\xaaov.exe /q" xaaov.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xaaov = "C:\\Users\\Admin\\xaaov.exe /v" xaaov.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xaaov = "C:\\Users\\Admin\\xaaov.exe /i" xaaov.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ xaaov.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xaaov = "C:\\Users\\Admin\\xaaov.exe /u" xaaov.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xaaov = "C:\\Users\\Admin\\xaaov.exe /a" xaaov.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 1508 a1ff8eb2195b02abfaf4966ce4bb92a546849cdeca9284af2045b52fc4cd9712.exe 1508 a1ff8eb2195b02abfaf4966ce4bb92a546849cdeca9284af2045b52fc4cd9712.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe 2804 xaaov.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1508 a1ff8eb2195b02abfaf4966ce4bb92a546849cdeca9284af2045b52fc4cd9712.exe 2804 xaaov.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1508 wrote to memory of 2804 1508 a1ff8eb2195b02abfaf4966ce4bb92a546849cdeca9284af2045b52fc4cd9712.exe 81 PID 1508 wrote to memory of 2804 1508 a1ff8eb2195b02abfaf4966ce4bb92a546849cdeca9284af2045b52fc4cd9712.exe 81 PID 1508 wrote to memory of 2804 1508 a1ff8eb2195b02abfaf4966ce4bb92a546849cdeca9284af2045b52fc4cd9712.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\a1ff8eb2195b02abfaf4966ce4bb92a546849cdeca9284af2045b52fc4cd9712.exe"C:\Users\Admin\AppData\Local\Temp\a1ff8eb2195b02abfaf4966ce4bb92a546849cdeca9284af2045b52fc4cd9712.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:1508 -
C:\Users\Admin\xaaov.exe"C:\Users\Admin\xaaov.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:2804
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
180KB
MD557fb89bb20d3fe08d5af5cda283d3930
SHA1bb2fc57431685dac279c8deb912a2eddb1cd97d9
SHA2569c39c894a149f1ee920eec6c784892dea8caf6aa08b77ff8f22095baad77e1a9
SHA512e66665d7aa54d00e7ee5e852e089305ace57593e8d3caa57f9b5678857a76ec6ef3e0d63c7ae063f233b6ae9d8b4f9bddb89a45a7ed6a668078ad09a75723edd
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Filesize
180KB
MD557fb89bb20d3fe08d5af5cda283d3930
SHA1bb2fc57431685dac279c8deb912a2eddb1cd97d9
SHA2569c39c894a149f1ee920eec6c784892dea8caf6aa08b77ff8f22095baad77e1a9
SHA512e66665d7aa54d00e7ee5e852e089305ace57593e8d3caa57f9b5678857a76ec6ef3e0d63c7ae063f233b6ae9d8b4f9bddb89a45a7ed6a668078ad09a75723edd