Analysis
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max time kernel
0s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
09-01-2024 19:00
Static task
static1
Behavioral task
behavioral1
Sample
4e3acf39223fe37b58ad0380e90ef6c6.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
4e3acf39223fe37b58ad0380e90ef6c6.exe
Resource
win10v2004-20231215-en
General
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Target
4e3acf39223fe37b58ad0380e90ef6c6.exe
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Size
292KB
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MD5
4e3acf39223fe37b58ad0380e90ef6c6
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SHA1
2c3962fd64095525f68e1f6449a71ab40a37fdb3
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SHA256
294d95dd888eb3cbee4f931156e0baf2fb1170b3e3823ba90a2fc74c1d00483c
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SHA512
1465d96feae40054306366dec190abe19fd9074a7b25b9fb4d56880c3fcc6a3fdf7aa7dfebf5bfabdf5b0fa216e419f52598c684c3a8994620d9548d2a7989da
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SSDEEP
6144:NZD4Gac2LvVBawbNac5w012I3IQCKeX9+1+:NZ1aLVEwFFQI3IQCK
Malware Config
Signatures
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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-1-5-21-768304381-2824894965-3840216961-1000\Control Panel\International\Geo\Nation 4e3acf39223fe37b58ad0380e90ef6c6.exe -
resource yara_rule behavioral2/memory/1504-4-0x0000000000400000-0x000000000046E000-memory.dmp upx behavioral2/memory/1504-5-0x0000000000400000-0x000000000046E000-memory.dmp upx behavioral2/memory/1504-6-0x0000000000400000-0x000000000046E000-memory.dmp upx behavioral2/memory/1504-3-0x0000000000400000-0x000000000046E000-memory.dmp upx behavioral2/memory/1504-2-0x0000000000400000-0x000000000046E000-memory.dmp upx behavioral2/memory/1504-8-0x0000000000400000-0x000000000046E000-memory.dmp upx -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2068 set thread context of 1504 2068 4e3acf39223fe37b58ad0380e90ef6c6.exe 24 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Kills process with taskkill 1 IoCs
pid Process 4780 taskkill.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2068 4e3acf39223fe37b58ad0380e90ef6c6.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2068 wrote to memory of 1504 2068 4e3acf39223fe37b58ad0380e90ef6c6.exe 24 PID 2068 wrote to memory of 1504 2068 4e3acf39223fe37b58ad0380e90ef6c6.exe 24 PID 2068 wrote to memory of 1504 2068 4e3acf39223fe37b58ad0380e90ef6c6.exe 24 PID 2068 wrote to memory of 1504 2068 4e3acf39223fe37b58ad0380e90ef6c6.exe 24 PID 2068 wrote to memory of 1504 2068 4e3acf39223fe37b58ad0380e90ef6c6.exe 24 PID 2068 wrote to memory of 1504 2068 4e3acf39223fe37b58ad0380e90ef6c6.exe 24 PID 2068 wrote to memory of 1504 2068 4e3acf39223fe37b58ad0380e90ef6c6.exe 24 PID 2068 wrote to memory of 1504 2068 4e3acf39223fe37b58ad0380e90ef6c6.exe 24
Processes
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C:\Users\Admin\AppData\Local\Temp\4e3acf39223fe37b58ad0380e90ef6c6.exe"C:\Users\Admin\AppData\Local\Temp\4e3acf39223fe37b58ad0380e90ef6c6.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2068 -
C:\Users\Admin\AppData\Local\Temp\4e3acf39223fe37b58ad0380e90ef6c6.exeC:\Users\Admin\AppData\Local\Temp\4e3acf39223fe37b58ad0380e90ef6c6.exe2⤵
- Checks computer location settings
PID:1504 -
C:\Windows\SysWOW64\taskkill.exe"C:\Windows\System32\taskkill.exe" /f /im explorer.exe3⤵
- Kills process with taskkill
PID:4780
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