Analysis
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max time kernel
148s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
28-11-2022 06:03
Static task
static1
Behavioral task
behavioral1
Sample
82fe21b76e2087aa2b5ee21575a81967f77e633306359f0e673e15376cc1d84e.exe
Resource
win7-20221111-en
General
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Target
82fe21b76e2087aa2b5ee21575a81967f77e633306359f0e673e15376cc1d84e.exe
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Size
92KB
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MD5
78beaf8d36f44ec7982289e7fb4ce8d9
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SHA1
a1ad5bfdf4b01af74fbf897f3fe212ee18b0071c
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SHA256
82fe21b76e2087aa2b5ee21575a81967f77e633306359f0e673e15376cc1d84e
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SHA512
ee675e3f3f649fb4ba44e66430c6796453082a3d00f590884bacc2c9cd9e18b8872c980e329e5961b99b38c6865620bc32d9dab5bf5422b975d2e38e01ab9f37
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SSDEEP
1536:rwTk1bQHlBGpO51/AinnANk0GBODxW05yiHcce3XB0eO/qnx0WvtA:rek1bAGUvA4ANk0NxWJETe320rl
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.
Processes:
82fe21b76e2087aa2b5ee21575a81967f77e633306359f0e673e15376cc1d84e.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation 82fe21b76e2087aa2b5ee21575a81967f77e633306359f0e673e15376cc1d84e.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
Processes:
82fe21b76e2087aa2b5ee21575a81967f77e633306359f0e673e15376cc1d84e.exedescription pid process target process PID 4972 wrote to memory of 2084 4972 82fe21b76e2087aa2b5ee21575a81967f77e633306359f0e673e15376cc1d84e.exe cmd.exe PID 4972 wrote to memory of 2084 4972 82fe21b76e2087aa2b5ee21575a81967f77e633306359f0e673e15376cc1d84e.exe cmd.exe PID 4972 wrote to memory of 2084 4972 82fe21b76e2087aa2b5ee21575a81967f77e633306359f0e673e15376cc1d84e.exe cmd.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\82fe21b76e2087aa2b5ee21575a81967f77e633306359f0e673e15376cc1d84e.exe"C:\Users\Admin\AppData\Local\Temp\82fe21b76e2087aa2b5ee21575a81967f77e633306359f0e673e15376cc1d84e.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\ytk.bat" "C:\Users\Admin\AppData\Local\Temp\82fe21b76e2087aa2b5ee21575a81967f77e633306359f0e673e15376cc1d84e.exe" "2⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\ytk.batFilesize
71B
MD5e6b031b9b7d40fa332ebc6f38b2f9f64
SHA1d6dbffcfcc6a26188fd8d2e5b6257af4821fb48f
SHA25666a04ff993916bce61351e4c3b94ea079c806efb1723c7cd79bd32aaf6847e0b
SHA5127d17655334fcda4c3326110d340fd91cd23ee284dec99c3a8bbc8408342fda5f51e27aaba75fba4cccd513c342c22f07ad2cf6e2326ba575e3cc0eba4ea91948
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memory/2084-135-0x0000000000000000-mapping.dmp
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memory/4972-132-0x00000000021D0000-0x00000000022D0000-memory.dmpFilesize
1024KB
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memory/4972-133-0x0000000000400000-0x000000000042F000-memory.dmpFilesize
188KB
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memory/4972-134-0x00000000021D0000-0x00000000022D0000-memory.dmpFilesize
1024KB
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memory/4972-136-0x0000000000400000-0x000000000042F000-memory.dmpFilesize
188KB