Analysis
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max time kernel
146s -
max time network
152s -
platform
windows10-1703_x64 -
resource
win10-20220812-en -
resource tags
arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system -
submitted
23-12-2022 15:06
Static task
static1
Behavioral task
behavioral1
Sample
8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe
Resource
win10-20220812-en
General
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Target
8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe
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Size
879KB
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MD5
45f6980ec4c0108bb1103cbc1906fa18
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SHA1
26504d9884c97a2fab9aa128148a5b36becf9e92
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SHA256
8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927
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SHA512
64fc21f11fc4bfbd485111695ee2ac9e1e70f4107893e259aa4d705a7ad647e7968f3c223d8d647124c8b0d8f041bae074c600a0ae168b0eb166cd62ee877049
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SSDEEP
24576:Cubv+5jv8LiSo2Jbqok9WYik0km7tm/78IM6lnI:CahLiSo2JbqXFikY0gIM6lnI
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 behavioral1/memory/2780-7339-0x0000000000400000-0x0000000000529000-memory.dmp unk_chinese_botnet -
Downloads MZ/PE file
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Executes dropped EXE 3 IoCs
pid Process 1864 computer.exe 1216 ._cache_computer.exe 1040 Synaptics.exe -
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-1-5-21-1099808672-3828198950-1535142148-1000\Control Panel\International\Geo\Nation computer.exe -
Adds Run key to start application 2 TTPs 3 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Synaptics Pointing Device Driver = "C:\\ProgramData\\Synaptics\\Synaptics.exe" computer.exe Set value (str) \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000\Software\Microsoft\Windows\CurrentVersion\Run\Imsossm.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\._cache_computer.exe" ._cache_computer.exe Set value (str) \REGISTRY\USER\S-1-5-21-1099808672-3828198950-1535142148-1000\Software\Microsoft\Windows\CurrentVersion\Run\system32.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe" 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe -
Enumerates connected drives 3 TTPs 46 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\L: ._cache_computer.exe File opened (read-only) \??\O: ._cache_computer.exe File opened (read-only) \??\J: 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe File opened (read-only) \??\P: 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe File opened (read-only) \??\G: ._cache_computer.exe File opened (read-only) \??\R: ._cache_computer.exe File opened (read-only) \??\Y: ._cache_computer.exe File opened (read-only) \??\F: 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe File opened (read-only) \??\H: 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe File opened (read-only) \??\T: 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe File opened (read-only) \??\Z: 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe File opened (read-only) \??\P: ._cache_computer.exe File opened (read-only) \??\Q: ._cache_computer.exe File opened (read-only) \??\T: ._cache_computer.exe File opened (read-only) \??\U: ._cache_computer.exe File opened (read-only) \??\Q: 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe File opened (read-only) \??\X: 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe File opened (read-only) \??\Y: 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe File opened (read-only) \??\F: ._cache_computer.exe File opened (read-only) \??\E: 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe File opened (read-only) \??\N: 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe File opened (read-only) \??\U: 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe File opened (read-only) \??\V: 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe File opened (read-only) \??\J: ._cache_computer.exe File opened (read-only) \??\X: ._cache_computer.exe File opened (read-only) \??\G: 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe File opened (read-only) \??\S: 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe File opened (read-only) \??\L: 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe File opened (read-only) \??\W: 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe File opened (read-only) \??\B: ._cache_computer.exe File opened (read-only) \??\I: ._cache_computer.exe File opened (read-only) \??\M: ._cache_computer.exe File opened (read-only) \??\N: ._cache_computer.exe File opened (read-only) \??\W: ._cache_computer.exe File opened (read-only) \??\M: 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe File opened (read-only) \??\O: 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe File opened (read-only) \??\R: 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe File opened (read-only) \??\E: ._cache_computer.exe File opened (read-only) \??\H: ._cache_computer.exe File opened (read-only) \??\K: ._cache_computer.exe File opened (read-only) \??\V: ._cache_computer.exe File opened (read-only) \??\I: 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe File opened (read-only) \??\S: ._cache_computer.exe File opened (read-only) \??\Z: ._cache_computer.exe File opened (read-only) \??\B: 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe File opened (read-only) \??\K: 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 35 IoCs
pid Process 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.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 4 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 ._cache_computer.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz ._cache_computer.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe -
Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance computer.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1216 ._cache_computer.exe 1216 ._cache_computer.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 2780 wrote to memory of 4336 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 66 PID 2780 wrote to memory of 4336 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 66 PID 2780 wrote to memory of 4336 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 66 PID 2780 wrote to memory of 1864 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 68 PID 2780 wrote to memory of 1864 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 68 PID 2780 wrote to memory of 1864 2780 8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe 68 PID 1864 wrote to memory of 1216 1864 computer.exe 69 PID 1864 wrote to memory of 1216 1864 computer.exe 69 PID 1864 wrote to memory of 1216 1864 computer.exe 69 PID 1864 wrote to memory of 1040 1864 computer.exe 70 PID 1864 wrote to memory of 1040 1864 computer.exe 70 PID 1864 wrote to memory of 1040 1864 computer.exe 70
Processes
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C:\Users\Admin\AppData\Local\Temp\8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe"C:\Users\Admin\AppData\Local\Temp\8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe"1⤵
- Adds Run key to start application
- Enumerates connected drives
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2780 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c md C:\windowss642⤵PID:4336
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C:\windowss64\computer.exe"C:\windowss64\computer.exe"2⤵
- Executes dropped EXE
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1864 -
C:\Users\Admin\AppData\Local\Temp\._cache_computer.exe"C:\Users\Admin\AppData\Local\Temp\._cache_computer.exe"3⤵
- Executes dropped EXE
- Adds Run key to start application
- Enumerates connected drives
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
PID:1216
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C:\ProgramData\Synaptics\Synaptics.exe"C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate3⤵
- Executes dropped EXE
PID:1040
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
754KB
MD5310a7ff41f6633132e6c2bc25e51e567
SHA15f687df8cc3185ed68d77d0e05502c2eb308c5c8
SHA256d1425edf482717cb64db2a36357866045b0c6306d919296591ffc9bc45d680ab
SHA512ee9b3114cb37e52793bccdf20a27158f5def67ed9c7d8eb772e1deaf5d5f9a0030e847dea40bb320637f29508f1be2a49c3095460a6fd3afbc3bca196f642980
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Filesize
754KB
MD5310a7ff41f6633132e6c2bc25e51e567
SHA15f687df8cc3185ed68d77d0e05502c2eb308c5c8
SHA256d1425edf482717cb64db2a36357866045b0c6306d919296591ffc9bc45d680ab
SHA512ee9b3114cb37e52793bccdf20a27158f5def67ed9c7d8eb772e1deaf5d5f9a0030e847dea40bb320637f29508f1be2a49c3095460a6fd3afbc3bca196f642980
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Filesize
400KB
MD520beeb0a82adcce3a58372804acc46be
SHA1c579d9017d2c8298fe075ff5c05963901330e72a
SHA256d1aaa7e7d31bf648c57f0c721d6f6ee2b17395b4e09d9d89a4f6dbd5dd706a8e
SHA5127636912ba6323063cefb7fac5a6cff9e44a474e452a4d5d4f77ef88968266de184c68112e3667585e02e811781f51ee020e61ce820e3f9a38dcfdf30e6d522bd
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Filesize
400KB
MD520beeb0a82adcce3a58372804acc46be
SHA1c579d9017d2c8298fe075ff5c05963901330e72a
SHA256d1aaa7e7d31bf648c57f0c721d6f6ee2b17395b4e09d9d89a4f6dbd5dd706a8e
SHA5127636912ba6323063cefb7fac5a6cff9e44a474e452a4d5d4f77ef88968266de184c68112e3667585e02e811781f51ee020e61ce820e3f9a38dcfdf30e6d522bd
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Filesize
1.1MB
MD5be689578752179e22bf915dbcf4f7520
SHA1e798e703bfb90707a2872b51da73f32af566aedb
SHA256de8c1aa37dd523e0699a10be71185f7a8ac1cde972d04107068f49250ef7317e
SHA51289c95b387e566dfaf3f6a4ab60ee6e24d2574dd3802458e4d8f15e4c44136ac54c5b3a53addc1d28748656320050ee735fa2e8e5c57cdfb53fbdddc6eb586da8
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Filesize
1.1MB
MD5be689578752179e22bf915dbcf4f7520
SHA1e798e703bfb90707a2872b51da73f32af566aedb
SHA256de8c1aa37dd523e0699a10be71185f7a8ac1cde972d04107068f49250ef7317e
SHA51289c95b387e566dfaf3f6a4ab60ee6e24d2574dd3802458e4d8f15e4c44136ac54c5b3a53addc1d28748656320050ee735fa2e8e5c57cdfb53fbdddc6eb586da8