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Analysis
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max time kernel
146s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
08/05/2023, 04:25
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20230220-en
General
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Target
file.exe
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Size
4.6MB
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MD5
3cc3c84c2b53d1af1ef32385194d9567
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SHA1
b39f3f126d7ce4c8d0c4e9466d442dfff1be1b2e
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SHA256
43283967357b7430a89b8904c8ad5022759cf0d5e9adc6505e68e95d7eebf993
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SHA512
f5463525fc8e98d7ab1e259578e7ba26e5512900da4daa567fec7d98349d325c8d79fd1273a2beb9e7b08b37d41f59ffaeae269417abd14ba97fe5775951e217
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SSDEEP
98304:OwH5CqQ9h1l2jhdslXO2NmuWnCCYUryWQ4m+zyrVxigu6LrL:xH5CqQnP8hdscKmHryWXmk4xiuf
Malware Config
Extracted
vidar
3.7
50444a9e42e55764a9d1f05ed3caa653
https://steamcommunity.com/profiles/76561199501059503
https://t.me/mastersbots
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profile_id_v2
50444a9e42e55764a9d1f05ed3caa653
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user_agent
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/112.0
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-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation file.exe -
Loads dropped DLL 2 IoCs
pid Process 2280 file.exe 2280 file.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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resource yara_rule behavioral2/memory/2280-133-0x0000000000EC0000-0x00000000016AD000-memory.dmp vmprotect -
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 file.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString file.exe -
Delays execution with timeout.exe 1 IoCs
pid Process 4008 timeout.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2280 file.exe 2280 file.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2280 wrote to memory of 2520 2280 file.exe 87 PID 2280 wrote to memory of 2520 2280 file.exe 87 PID 2280 wrote to memory of 2520 2280 file.exe 87 PID 2520 wrote to memory of 4008 2520 cmd.exe 89 PID 2520 wrote to memory of 4008 2520 cmd.exe 89 PID 2520 wrote to memory of 4008 2520 cmd.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2280 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\file.exe" & exit2⤵
- Suspicious use of WriteProcessMemory
PID:2520 -
C:\Windows\SysWOW64\timeout.exetimeout /t 63⤵
- Delays execution with timeout.exe
PID:4008
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
593KB
MD5c8fd9be83bc728cc04beffafc2907fe9
SHA195ab9f701e0024cedfbd312bcfe4e726744c4f2e
SHA256ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
SHA512fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040
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Filesize
2.0MB
MD51cc453cdf74f31e4d913ff9c10acdde2
SHA16e85eae544d6e965f15fa5c39700fa7202f3aafe
SHA256ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
SHA512dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571