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Analysis
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max time kernel
156s -
max time network
194s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
01/12/2022, 23:19
Static task
static1
Behavioral task
behavioral1
Sample
72ec9b054f476097bbdeb61b7508e2530169d76ba1f7df5a4e48c82fcd3e3eb5.exe
Resource
win7-20221111-en
windows7-x64
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
72ec9b054f476097bbdeb61b7508e2530169d76ba1f7df5a4e48c82fcd3e3eb5.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
11 signatures
150 seconds
General
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Target
72ec9b054f476097bbdeb61b7508e2530169d76ba1f7df5a4e48c82fcd3e3eb5.exe
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Size
88KB
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MD5
1bb05c2b069230602d67c5b0f59207c0
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SHA1
e1e3a8582dee321737a0b8ee891816926f7e279d
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SHA256
72ec9b054f476097bbdeb61b7508e2530169d76ba1f7df5a4e48c82fcd3e3eb5
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SHA512
c1e383d9ca08da12d6a63575f3285e3b21d2032d1a242efdf533737f0e4f3af620b4b6bb722f3d8936b40285ebef64b602004d16bb56c823cc5ca5e79a8e0310
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SSDEEP
1536:F99rUWXF3+0wAr+KvpBirLUGLkKcB+YcLvgrswc:n9/jplji0mkKcB+YcLvyc
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" biial.exe Set value (int) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 72ec9b054f476097bbdeb61b7508e2530169d76ba1f7df5a4e48c82fcd3e3eb5.exe -
Executes dropped EXE 2 IoCs
pid Process 3116 biial.exe 5040 biial.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 72ec9b054f476097bbdeb61b7508e2530169d76ba1f7df5a4e48c82fcd3e3eb5.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biial = "C:\\Users\\Admin\\biial.exe /t" biial.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biial = "C:\\Users\\Admin\\biial.exe /u" biial.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biial = "C:\\Users\\Admin\\biial.exe /y" biial.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows\CurrentVersion\Run\ biial.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biial = "C:\\Users\\Admin\\biial.exe /j" biial.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biial = "C:\\Users\\Admin\\biial.exe /z" biial.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biial = "C:\\Users\\Admin\\biial.exe /k" biial.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biial = "C:\\Users\\Admin\\biial.exe /c" biial.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biial = "C:\\Users\\Admin\\biial.exe /d" biial.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biial = "C:\\Users\\Admin\\biial.exe /n" biial.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biial = "C:\\Users\\Admin\\biial.exe /b" biial.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biial = "C:\\Users\\Admin\\biial.exe /q" biial.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biial = "C:\\Users\\Admin\\biial.exe /a" biial.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biial = "C:\\Users\\Admin\\biial.exe /x" biial.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biial = "C:\\Users\\Admin\\biial.exe /g" biial.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biial = "C:\\Users\\Admin\\biial.exe /e" biial.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biial = "C:\\Users\\Admin\\biial.exe /w" biial.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biial = "C:\\Users\\Admin\\biial.exe /f" biial.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biial = "C:\\Users\\Admin\\biial.exe /o" 72ec9b054f476097bbdeb61b7508e2530169d76ba1f7df5a4e48c82fcd3e3eb5.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biial = "C:\\Users\\Admin\\biial.exe /p" biial.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biial = "C:\\Users\\Admin\\biial.exe /i" biial.exe Key created \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 72ec9b054f476097bbdeb61b7508e2530169d76ba1f7df5a4e48c82fcd3e3eb5.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biial = "C:\\Users\\Admin\\biial.exe /m" biial.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biial = "C:\\Users\\Admin\\biial.exe /s" biial.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biial = "C:\\Users\\Admin\\biial.exe /r" biial.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biial = "C:\\Users\\Admin\\biial.exe /l" biial.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biial = "C:\\Users\\Admin\\biial.exe /o" biial.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biial = "C:\\Users\\Admin\\biial.exe /h" biial.exe Set value (str) \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\biial = "C:\\Users\\Admin\\biial.exe /v" biial.exe -
Maps connected drives based on registry 3 TTPs 4 IoCs
Disk information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum biial.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 biial.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum 72ec9b054f476097bbdeb61b7508e2530169d76ba1f7df5a4e48c82fcd3e3eb5.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 72ec9b054f476097bbdeb61b7508e2530169d76ba1f7df5a4e48c82fcd3e3eb5.exe -
Drops autorun.inf file 1 TTPs 1 IoCs
Malware can abuse Windows Autorun to spread further via attached volumes.
description ioc Process File opened for modification C:\Users\Admin\c\autorun.inf biial.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 448 set thread context of 2524 448 72ec9b054f476097bbdeb61b7508e2530169d76ba1f7df5a4e48c82fcd3e3eb5.exe 82 PID 3116 set thread context of 5040 3116 biial.exe 86 -
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 2524 72ec9b054f476097bbdeb61b7508e2530169d76ba1f7df5a4e48c82fcd3e3eb5.exe 2524 72ec9b054f476097bbdeb61b7508e2530169d76ba1f7df5a4e48c82fcd3e3eb5.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe 5040 biial.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
pid Process 448 72ec9b054f476097bbdeb61b7508e2530169d76ba1f7df5a4e48c82fcd3e3eb5.exe 2524 72ec9b054f476097bbdeb61b7508e2530169d76ba1f7df5a4e48c82fcd3e3eb5.exe 3116 biial.exe 5040 biial.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 448 wrote to memory of 2524 448 72ec9b054f476097bbdeb61b7508e2530169d76ba1f7df5a4e48c82fcd3e3eb5.exe 82 PID 448 wrote to memory of 2524 448 72ec9b054f476097bbdeb61b7508e2530169d76ba1f7df5a4e48c82fcd3e3eb5.exe 82 PID 448 wrote to memory of 2524 448 72ec9b054f476097bbdeb61b7508e2530169d76ba1f7df5a4e48c82fcd3e3eb5.exe 82 PID 448 wrote to memory of 2524 448 72ec9b054f476097bbdeb61b7508e2530169d76ba1f7df5a4e48c82fcd3e3eb5.exe 82 PID 448 wrote to memory of 2524 448 72ec9b054f476097bbdeb61b7508e2530169d76ba1f7df5a4e48c82fcd3e3eb5.exe 82 PID 448 wrote to memory of 2524 448 72ec9b054f476097bbdeb61b7508e2530169d76ba1f7df5a4e48c82fcd3e3eb5.exe 82 PID 448 wrote to memory of 2524 448 72ec9b054f476097bbdeb61b7508e2530169d76ba1f7df5a4e48c82fcd3e3eb5.exe 82 PID 448 wrote to memory of 2524 448 72ec9b054f476097bbdeb61b7508e2530169d76ba1f7df5a4e48c82fcd3e3eb5.exe 82 PID 448 wrote to memory of 2524 448 72ec9b054f476097bbdeb61b7508e2530169d76ba1f7df5a4e48c82fcd3e3eb5.exe 82 PID 2524 wrote to memory of 3116 2524 72ec9b054f476097bbdeb61b7508e2530169d76ba1f7df5a4e48c82fcd3e3eb5.exe 85 PID 2524 wrote to memory of 3116 2524 72ec9b054f476097bbdeb61b7508e2530169d76ba1f7df5a4e48c82fcd3e3eb5.exe 85 PID 2524 wrote to memory of 3116 2524 72ec9b054f476097bbdeb61b7508e2530169d76ba1f7df5a4e48c82fcd3e3eb5.exe 85 PID 3116 wrote to memory of 5040 3116 biial.exe 86 PID 3116 wrote to memory of 5040 3116 biial.exe 86 PID 3116 wrote to memory of 5040 3116 biial.exe 86 PID 3116 wrote to memory of 5040 3116 biial.exe 86 PID 3116 wrote to memory of 5040 3116 biial.exe 86 PID 3116 wrote to memory of 5040 3116 biial.exe 86 PID 3116 wrote to memory of 5040 3116 biial.exe 86 PID 3116 wrote to memory of 5040 3116 biial.exe 86 PID 3116 wrote to memory of 5040 3116 biial.exe 86
Processes
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C:\Users\Admin\AppData\Local\Temp\72ec9b054f476097bbdeb61b7508e2530169d76ba1f7df5a4e48c82fcd3e3eb5.exe"C:\Users\Admin\AppData\Local\Temp\72ec9b054f476097bbdeb61b7508e2530169d76ba1f7df5a4e48c82fcd3e3eb5.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:448 -
C:\Users\Admin\AppData\Local\Temp\72ec9b054f476097bbdeb61b7508e2530169d76ba1f7df5a4e48c82fcd3e3eb5.exe712⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2524 -
C:\Users\Admin\biial.exe"C:\Users\Admin\biial.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3116 -
C:\Users\Admin\biial.exe714⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Maps connected drives based on registry
- Drops autorun.inf file
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:5040
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
88KB
MD51bb05c2b069230602d67c5b0f59207c0
SHA1e1e3a8582dee321737a0b8ee891816926f7e279d
SHA25672ec9b054f476097bbdeb61b7508e2530169d76ba1f7df5a4e48c82fcd3e3eb5
SHA512c1e383d9ca08da12d6a63575f3285e3b21d2032d1a242efdf533737f0e4f3af620b4b6bb722f3d8936b40285ebef64b602004d16bb56c823cc5ca5e79a8e0310
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Filesize
88KB
MD51bb05c2b069230602d67c5b0f59207c0
SHA1e1e3a8582dee321737a0b8ee891816926f7e279d
SHA25672ec9b054f476097bbdeb61b7508e2530169d76ba1f7df5a4e48c82fcd3e3eb5
SHA512c1e383d9ca08da12d6a63575f3285e3b21d2032d1a242efdf533737f0e4f3af620b4b6bb722f3d8936b40285ebef64b602004d16bb56c823cc5ca5e79a8e0310
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Filesize
88KB
MD51bb05c2b069230602d67c5b0f59207c0
SHA1e1e3a8582dee321737a0b8ee891816926f7e279d
SHA25672ec9b054f476097bbdeb61b7508e2530169d76ba1f7df5a4e48c82fcd3e3eb5
SHA512c1e383d9ca08da12d6a63575f3285e3b21d2032d1a242efdf533737f0e4f3af620b4b6bb722f3d8936b40285ebef64b602004d16bb56c823cc5ca5e79a8e0310