Analysis
- max time kernel
90s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system - submitted
29/01/2023, 10:06
Static task
static1
Behavioral task
behavioral1
Sample
b211f13f1d6bde04ec45c1141bbec0a170ae81bb6a07b061b0df9150ae2e8ccf.exe
Resource
win7-20221111-en
7 signatures
150 seconds
General
- Target b211f13f1d6bde04ec45c1141bbec0a170ae81bb6a07b061b0df9150ae2e8ccf.exe
- Size 93KB
- Sample230129-l423yaae83
- SHA256 b211f13f1d6bde04ec45c1141bbec0a170ae81bb6a07b061b0df9150ae2e8ccf
- MD5 12baeaea567ef17c89d81f2fc0507610
- SHA1 8c26c7ce31a50d5c3d8583400d329ba03b9b3490
- SHA512 9f143a014b7d30e4b0f430a71b97c45db75b8fa296f123a5a8bbdb5b033556fd4e59a06d9419680615861aa6d57a231021d9a94deb18b5e4da5ce8a7823b6fb9
- SSDEEP 1536:5+lv/kZymZoZ63DBcQZtx7yF1p3p5aLSsG0KIlJxCn2kujHJEP93suLaORz:5+lvMnZoZ+BcQ7x76/aGL8bxXXHJwscp
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- 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 b211f13f1d6bde04ec45c1141bbec0a170ae81bb6a07b061b0df9150ae2e8ccf.exe - Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3392 wrote to memory of 3124 3392 b211f13f1d6bde04ec45c1141bbec0a170ae81bb6a07b061b0df9150ae2e8ccf.exe 87 PID 3392 wrote to memory of 3124 3392 b211f13f1d6bde04ec45c1141bbec0a170ae81bb6a07b061b0df9150ae2e8ccf.exe 87 PID 3392 wrote to memory of 3124 3392 b211f13f1d6bde04ec45c1141bbec0a170ae81bb6a07b061b0df9150ae2e8ccf.exe 87
Processes
-
C:\Users\Admin\AppData\Local\Temp\b211f13f1d6bde04ec45c1141bbec0a170ae81bb6a07b061b0df9150ae2e8ccf.exe"C:\Users\Admin\AppData\Local\Temp\b211f13f1d6bde04ec45c1141bbec0a170ae81bb6a07b061b0df9150ae2e8ccf.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3392 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\ytk.bat" "C:\Users\Admin\AppData\Local\Temp\b211f13f1d6bde04ec45c1141bbec0a170ae81bb6a07b061b0df9150ae2e8ccf.exe" "2⤵PID:3124
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\ytk.bat
- Size 71B
- SHA256 66a04ff993916bce61351e4c3b94ea079c806efb1723c7cd79bd32aaf6847e0b
- MD5 e6b031b9b7d40fa332ebc6f38b2f9f64
- SHA1 d6dbffcfcc6a26188fd8d2e5b6257af4821fb48f
- SHA512 7d17655334fcda4c3326110d340fd91cd23ee284dec99c3a8bbc8408342fda5f51e27aaba75fba4cccd513c342c22f07ad2cf6e2326ba575e3cc0eba4ea91948
- MD5 SHA1 SHA512