Analysis

  • 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

General

  • Target

    8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927.exe

  • Size

    879KB

  • MD5

    45f6980ec4c0108bb1103cbc1906fa18

  • SHA1

    26504d9884c97a2fab9aa128148a5b36becf9e92

  • SHA256

    8bc19641f9095f8c86c3836cf1f9d7b1dd14a1c62da0320ce09d5e27d0104927

  • SHA512

    64fc21f11fc4bfbd485111695ee2ac9e1e70f4107893e259aa4d705a7ad647e7968f3c223d8d647124c8b0d8f041bae074c600a0ae168b0eb166cd62ee877049

  • SSDEEP

    24576:Cubv+5jv8LiSo2Jbqok9WYik0km7tm/78IM6lnI:CahLiSo2JbqXFikY0gIM6lnI

Malware Config

Signatures

  • Generic Chinese Botnet

    A botnet originating from China which is currently unnamed publicly.

  • Chinese Botnet payload 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 3 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 3 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 35 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 4 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • 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.exe
      C:\Windows\system32\cmd.exe /c md C:\windowss64
      2⤵
        PID:4336
      • 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
        • C:\ProgramData\Synaptics\Synaptics.exe
          "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
          3⤵
          • Executes dropped EXE
          PID:1040

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\Synaptics\Synaptics.exe

      Filesize

      754KB

      MD5

      310a7ff41f6633132e6c2bc25e51e567

      SHA1

      5f687df8cc3185ed68d77d0e05502c2eb308c5c8

      SHA256

      d1425edf482717cb64db2a36357866045b0c6306d919296591ffc9bc45d680ab

      SHA512

      ee9b3114cb37e52793bccdf20a27158f5def67ed9c7d8eb772e1deaf5d5f9a0030e847dea40bb320637f29508f1be2a49c3095460a6fd3afbc3bca196f642980

    • C:\ProgramData\Synaptics\Synaptics.exe

      Filesize

      754KB

      MD5

      310a7ff41f6633132e6c2bc25e51e567

      SHA1

      5f687df8cc3185ed68d77d0e05502c2eb308c5c8

      SHA256

      d1425edf482717cb64db2a36357866045b0c6306d919296591ffc9bc45d680ab

      SHA512

      ee9b3114cb37e52793bccdf20a27158f5def67ed9c7d8eb772e1deaf5d5f9a0030e847dea40bb320637f29508f1be2a49c3095460a6fd3afbc3bca196f642980

    • C:\Users\Admin\AppData\Local\Temp\._cache_computer.exe

      Filesize

      400KB

      MD5

      20beeb0a82adcce3a58372804acc46be

      SHA1

      c579d9017d2c8298fe075ff5c05963901330e72a

      SHA256

      d1aaa7e7d31bf648c57f0c721d6f6ee2b17395b4e09d9d89a4f6dbd5dd706a8e

      SHA512

      7636912ba6323063cefb7fac5a6cff9e44a474e452a4d5d4f77ef88968266de184c68112e3667585e02e811781f51ee020e61ce820e3f9a38dcfdf30e6d522bd

    • C:\Users\Admin\AppData\Local\Temp\._cache_computer.exe

      Filesize

      400KB

      MD5

      20beeb0a82adcce3a58372804acc46be

      SHA1

      c579d9017d2c8298fe075ff5c05963901330e72a

      SHA256

      d1aaa7e7d31bf648c57f0c721d6f6ee2b17395b4e09d9d89a4f6dbd5dd706a8e

      SHA512

      7636912ba6323063cefb7fac5a6cff9e44a474e452a4d5d4f77ef88968266de184c68112e3667585e02e811781f51ee020e61ce820e3f9a38dcfdf30e6d522bd

    • C:\windowss64\computer.exe

      Filesize

      1.1MB

      MD5

      be689578752179e22bf915dbcf4f7520

      SHA1

      e798e703bfb90707a2872b51da73f32af566aedb

      SHA256

      de8c1aa37dd523e0699a10be71185f7a8ac1cde972d04107068f49250ef7317e

      SHA512

      89c95b387e566dfaf3f6a4ab60ee6e24d2574dd3802458e4d8f15e4c44136ac54c5b3a53addc1d28748656320050ee735fa2e8e5c57cdfb53fbdddc6eb586da8

    • C:\windowss64\computer.exe

      Filesize

      1.1MB

      MD5

      be689578752179e22bf915dbcf4f7520

      SHA1

      e798e703bfb90707a2872b51da73f32af566aedb

      SHA256

      de8c1aa37dd523e0699a10be71185f7a8ac1cde972d04107068f49250ef7317e

      SHA512

      89c95b387e566dfaf3f6a4ab60ee6e24d2574dd3802458e4d8f15e4c44136ac54c5b3a53addc1d28748656320050ee735fa2e8e5c57cdfb53fbdddc6eb586da8

    • memory/2780-2713-0x0000000002690000-0x0000000002820000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-7034-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-127-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-128-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-129-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-7023-0x0000000000400000-0x0000000000529000-memory.dmp

      Filesize

      1.2MB

    • memory/2780-131-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-132-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-133-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-134-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-135-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-136-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-138-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-139-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-141-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-142-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-144-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-146-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-148-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-149-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-151-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-150-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-147-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-145-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-143-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-140-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-137-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-152-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-153-0x0000000074340000-0x0000000074502000-memory.dmp

      Filesize

      1.8MB

    • memory/2780-2019-0x0000000073DC0000-0x0000000073EFC000-memory.dmp

      Filesize

      1.2MB

    • memory/2780-2711-0x00000000029F0000-0x0000000002BBC000-memory.dmp

      Filesize

      1.8MB

    • memory/2780-116-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-2917-0x00000000755E0000-0x0000000075657000-memory.dmp

      Filesize

      476KB

    • memory/2780-7019-0x0000000002380000-0x0000000002456000-memory.dmp

      Filesize

      856KB

    • memory/2780-7020-0x0000000000400000-0x0000000000529000-memory.dmp

      Filesize

      1.2MB

    • memory/2780-7021-0x0000000000400000-0x0000000000529000-memory.dmp

      Filesize

      1.2MB

    • memory/2780-130-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-7030-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-126-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-7032-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-7033-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-7031-0x0000000000400000-0x0000000000529000-memory.dmp

      Filesize

      1.2MB

    • memory/2780-7339-0x0000000000400000-0x0000000000529000-memory.dmp

      Filesize

      1.2MB

    • memory/2780-7035-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-7036-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-7037-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-7038-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-7039-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-7040-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-7041-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-7042-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-7043-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-7044-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-7045-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-7046-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-7048-0x00000000029F0000-0x0000000002BBC000-memory.dmp

      Filesize

      1.8MB

    • memory/2780-7049-0x0000000002690000-0x0000000002820000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-7050-0x0000000002380000-0x0000000002456000-memory.dmp

      Filesize

      856KB

    • memory/2780-125-0x0000000000400000-0x0000000000529000-memory.dmp

      Filesize

      1.2MB

    • memory/2780-124-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-123-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-122-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-121-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-120-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-119-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-118-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/2780-117-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/4336-7025-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/4336-7026-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/4336-7027-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/4336-7028-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB

    • memory/4336-7029-0x0000000076FB0000-0x000000007713E000-memory.dmp

      Filesize

      1.6MB