Analysis
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max time kernel
12s -
max time network
152s -
platform
windows10_x64 -
resource
win10v20210410 -
submitted
17-08-2021 02:03
Static task
static1
Behavioral task
behavioral1
Sample
mixazed_20210816-155711.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
mixazed_20210816-155711.exe
Resource
win10v20210410
General
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Target
mixazed_20210816-155711.exe
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Size
283KB
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MD5
f85b93364a678d47d4b54675dda1abc3
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SHA1
e03b6b4d0690d66e323868e1243b32e2af947b0a
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SHA256
42525e109fc534ac972d74fcb8c628528ddecc7c124ff1c0a5059139444f4165
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SHA512
97e78d70291383bfbfbef98617294dc1eb61a757ece1eb88aea5036d913c0731fc2247c061d0261fd4cfa97e344b94bce0b55c7878ea6d85222206fae31c96bf
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
resource yara_rule behavioral2/memory/3972-115-0x0000000010000000-0x0000000010018000-memory.dmp unk_chinese_botnet -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\Kkouumo.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\mixazed_20210816-155711.exe" mixazed_20210816-155711.exe -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\P: mixazed_20210816-155711.exe File opened (read-only) \??\R: mixazed_20210816-155711.exe File opened (read-only) \??\V: mixazed_20210816-155711.exe File opened (read-only) \??\G: mixazed_20210816-155711.exe File opened (read-only) \??\H: mixazed_20210816-155711.exe File opened (read-only) \??\I: mixazed_20210816-155711.exe File opened (read-only) \??\J: mixazed_20210816-155711.exe File opened (read-only) \??\M: mixazed_20210816-155711.exe File opened (read-only) \??\Y: mixazed_20210816-155711.exe File opened (read-only) \??\Z: mixazed_20210816-155711.exe File opened (read-only) \??\F: mixazed_20210816-155711.exe File opened (read-only) \??\N: mixazed_20210816-155711.exe File opened (read-only) \??\S: mixazed_20210816-155711.exe File opened (read-only) \??\U: mixazed_20210816-155711.exe File opened (read-only) \??\K: mixazed_20210816-155711.exe File opened (read-only) \??\L: mixazed_20210816-155711.exe File opened (read-only) \??\T: mixazed_20210816-155711.exe File opened (read-only) \??\W: mixazed_20210816-155711.exe File opened (read-only) \??\X: mixazed_20210816-155711.exe File opened (read-only) \??\B: mixazed_20210816-155711.exe File opened (read-only) \??\E: mixazed_20210816-155711.exe File opened (read-only) \??\O: mixazed_20210816-155711.exe File opened (read-only) \??\Q: mixazed_20210816-155711.exe -
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.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 mixazed_20210816-155711.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz mixazed_20210816-155711.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3972 mixazed_20210816-155711.exe 3972 mixazed_20210816-155711.exe 3972 mixazed_20210816-155711.exe 3972 mixazed_20210816-155711.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3972 mixazed_20210816-155711.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\mixazed_20210816-155711.exe"C:\Users\Admin\AppData\Local\Temp\mixazed_20210816-155711.exe"1⤵
- Adds Run key to start application
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:3972