Analysis
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max time kernel
116s -
max time network
144s -
platform
windows10_x64 -
resource
win10-en-20210920 -
submitted
26-09-2021 15:01
General
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Target
fbf.exe
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Size
249KB
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MD5
fbf3187db919beaddb30ae7e52bd9a49
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SHA1
d2891928551f2adff238547c7cae4e3fef7cc057
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SHA256
a83b8dfadf92be244ccc6b2964eea2f67e0c807befa3ab969a68ee321be583dd
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SHA512
1d609711a21609d3bc3df80d3616ef388f32e0adcb9af865bfa3aeb9c61f81e099e5591cdecbe5412a4ea18ef236043c977faad4245ae45fd58eeb15119715ab
Score
10/10
Malware Config
Signatures
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Generic Chinese Botnet
A botnet originating from China which is currently unnamed publicly.
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Chinese Botnet Payload 1 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
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Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
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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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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
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Suspicious behavior: EnumeratesProcesses 4 IoCs
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Suspicious use of SetWindowsHookEx 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\fbf.exe"C:\Users\Admin\AppData\Local\Temp\fbf.exe"1⤵
- Adds Run key to start application
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
784KB
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Filesize
752KB
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Filesize
96KB