Analysis
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max time kernel
73s -
max time network
139s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
11/10/2022, 04:27
Static task
static1
Behavioral task
behavioral1
Sample
81b781e38cd09eba17fe197a6337fd1ffeb21252d319b08ad41dd5e4790f6e1c.exe
Resource
win7-20220812-en
General
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Target
81b781e38cd09eba17fe197a6337fd1ffeb21252d319b08ad41dd5e4790f6e1c.exe
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Size
93KB
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MD5
6b953b2357e4781c1dd5a0ec1e12a8f0
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SHA1
6a7cba24034622cbed53863cc2aa867b505a7591
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SHA256
81b781e38cd09eba17fe197a6337fd1ffeb21252d319b08ad41dd5e4790f6e1c
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SHA512
30ddcd06b1d6849cf95787402e8d6a6d25ce4500f63a3a9609a8ca46931738215daeb58f9bb8d2ac2946852b99a15b8d77e55bc77ce891b145b82584ee20f85d
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SSDEEP
1536:jRzt5Z9mDDM3TSibxq8ktxBKY8Dynhq4aYnqgy+48MVrHA+/A6YqT9KnKmeTyhKY:vd4YLxPkjBKYPhqHYnF48MhC6YqT9KKs
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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation 81b781e38cd09eba17fe197a6337fd1ffeb21252d319b08ad41dd5e4790f6e1c.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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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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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). Likely ransomware behaviour.
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Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4176 wrote to memory of 4520 4176 81b781e38cd09eba17fe197a6337fd1ffeb21252d319b08ad41dd5e4790f6e1c.exe 89 PID 4176 wrote to memory of 4520 4176 81b781e38cd09eba17fe197a6337fd1ffeb21252d319b08ad41dd5e4790f6e1c.exe 89 PID 4176 wrote to memory of 4520 4176 81b781e38cd09eba17fe197a6337fd1ffeb21252d319b08ad41dd5e4790f6e1c.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\81b781e38cd09eba17fe197a6337fd1ffeb21252d319b08ad41dd5e4790f6e1c.exe"C:\Users\Admin\AppData\Local\Temp\81b781e38cd09eba17fe197a6337fd1ffeb21252d319b08ad41dd5e4790f6e1c.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4176 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\ytk.bat" "C:\Users\Admin\AppData\Local\Temp\81b781e38cd09eba17fe197a6337fd1ffeb21252d319b08ad41dd5e4790f6e1c.exe" "2⤵PID:4520
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
71B
MD5e6b031b9b7d40fa332ebc6f38b2f9f64
SHA1d6dbffcfcc6a26188fd8d2e5b6257af4821fb48f
SHA25666a04ff993916bce61351e4c3b94ea079c806efb1723c7cd79bd32aaf6847e0b
SHA5127d17655334fcda4c3326110d340fd91cd23ee284dec99c3a8bbc8408342fda5f51e27aaba75fba4cccd513c342c22f07ad2cf6e2326ba575e3cc0eba4ea91948