Analysis
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max time kernel
142s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20230703-en -
resource tags
arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system -
submitted
26-07-2023 11:16
Static task
static1
Behavioral task
behavioral1
Sample
tmp.exe
Resource
win7-20230712-en
Behavioral task
behavioral2
Sample
tmp.exe
Resource
win10v2004-20230703-en
General
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Target
tmp.exe
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Size
376KB
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MD5
d8b28ba74753386b6d8db50cd45c7736
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SHA1
6ad0f38cb66ea65989d6bd5e0caaa7fe3d4e613b
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SHA256
1b088f289981db8bb8996ac0442910b0131af925a0012aebfa71ba2eb69bfa37
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SHA512
635ce951f9637d93339fe566214bc1001c724ec2e8139ae89a2b472c08d3123b8c8efeefe89b0880315e734ad76cbf7f28d61837bd24c6659148b802f272084e
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SSDEEP
3072:zAAdrtcV2GenT0cTtm2LAQSXVqjzpYfJhQ/w7EMMv:xI2GenQ67wk3pyJhcw7Q
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/4048-133-0x0000000010000000-0x0000000010018000-memory.dmp unk_chinese_botnet -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1722984668-1829624581-3022101259-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Fbthdlv.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\tmp.exe" tmp.exe -
Enumerates connected drives 3 TTPs 22 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\K: tmp.exe File opened (read-only) \??\L: tmp.exe File opened (read-only) \??\O: tmp.exe File opened (read-only) \??\W: tmp.exe File opened (read-only) \??\X: tmp.exe File opened (read-only) \??\E: tmp.exe File opened (read-only) \??\Q: tmp.exe File opened (read-only) \??\U: tmp.exe File opened (read-only) \??\V: tmp.exe File opened (read-only) \??\Y: tmp.exe File opened (read-only) \??\J: tmp.exe File opened (read-only) \??\M: tmp.exe File opened (read-only) \??\P: tmp.exe File opened (read-only) \??\R: tmp.exe File opened (read-only) \??\S: tmp.exe File opened (read-only) \??\Z: tmp.exe File opened (read-only) \??\B: tmp.exe File opened (read-only) \??\G: tmp.exe File opened (read-only) \??\H: tmp.exe File opened (read-only) \??\I: tmp.exe File opened (read-only) \??\N: tmp.exe File opened (read-only) \??\T: tmp.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 tmp.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz tmp.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4048 tmp.exe 4048 tmp.exe