Analysis

  • max time kernel
    146s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-08-2023 15:13

General

  • Target

    tmp.exe

  • Size

    1.1MB

  • MD5

    700fc96585a4947fcdf27a271d40876f

  • SHA1

    121edbdefb9a894ff217f20c963626ec1bd94770

  • SHA256

    65a0ece86fe16402e51a637d121bddccfa0d1d026bd0cec7f7ead19c31507eaa

  • SHA512

    748d5fd5421bdb51421dc9a33c2a4ca93a66d1afcdeb03a766513b81e05a337e52ad3fdacb852e8e037e7dfffdb3e6cfec3fe376d885a8c8b8da5188cd4c032e

  • SSDEEP

    12288:VMSApJVYG5lDLyjsb0eOzkv4R7QnvUUilQ35+6G75V9FC9/W74Vf:VnsJ39LyjbJkQFMhmC+6GD9mW7S

Malware Config

Signatures

  • Generic Chinese Botnet

    A botnet originating from China which is currently unnamed publicly.

  • Chinese Botnet payload 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Enumerates connected drives 3 TTPs 22 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    1⤵
    • Adds Run key to start application
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4108
    • C:\Users\Admin\AppData\Local\Temp\._cache_tmp.exe
      "C:\Users\Admin\AppData\Local\Temp\._cache_tmp.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      PID:4388
    • C:\ProgramData\Synaptics\Synaptics.exe
      "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
      2⤵
      • Executes dropped EXE
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:4192
      • C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe
        "C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe" InjUpdate
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Enumerates connected drives
        • Suspicious behavior: EnumeratesProcesses
        PID:1752

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\Synaptics\Synaptics.exe

    Filesize

    1.1MB

    MD5

    700fc96585a4947fcdf27a271d40876f

    SHA1

    121edbdefb9a894ff217f20c963626ec1bd94770

    SHA256

    65a0ece86fe16402e51a637d121bddccfa0d1d026bd0cec7f7ead19c31507eaa

    SHA512

    748d5fd5421bdb51421dc9a33c2a4ca93a66d1afcdeb03a766513b81e05a337e52ad3fdacb852e8e037e7dfffdb3e6cfec3fe376d885a8c8b8da5188cd4c032e

  • C:\ProgramData\Synaptics\Synaptics.exe

    Filesize

    1.1MB

    MD5

    700fc96585a4947fcdf27a271d40876f

    SHA1

    121edbdefb9a894ff217f20c963626ec1bd94770

    SHA256

    65a0ece86fe16402e51a637d121bddccfa0d1d026bd0cec7f7ead19c31507eaa

    SHA512

    748d5fd5421bdb51421dc9a33c2a4ca93a66d1afcdeb03a766513b81e05a337e52ad3fdacb852e8e037e7dfffdb3e6cfec3fe376d885a8c8b8da5188cd4c032e

  • C:\ProgramData\Synaptics\Synaptics.exe

    Filesize

    1.1MB

    MD5

    700fc96585a4947fcdf27a271d40876f

    SHA1

    121edbdefb9a894ff217f20c963626ec1bd94770

    SHA256

    65a0ece86fe16402e51a637d121bddccfa0d1d026bd0cec7f7ead19c31507eaa

    SHA512

    748d5fd5421bdb51421dc9a33c2a4ca93a66d1afcdeb03a766513b81e05a337e52ad3fdacb852e8e037e7dfffdb3e6cfec3fe376d885a8c8b8da5188cd4c032e

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

    Filesize

    352KB

    MD5

    e76dbb2f998c3ccf78e984001c9207c8

    SHA1

    9c27f473c6d8529f77fdfaac6615265d096b4f85

    SHA256

    ac5afced6515d12cf83466ea2dc0e874c9b5491beba0837a344e0e6093febc07

    SHA512

    ed1eea5ef6d894cb460c00a78bb8363159c6afd52d94446b48c644088d3aae0319411175112385d4e92d2f6bd5b89c03b0f6f140eb24d4b72848b8e2b1105b34

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

    Filesize

    352KB

    MD5

    e76dbb2f998c3ccf78e984001c9207c8

    SHA1

    9c27f473c6d8529f77fdfaac6615265d096b4f85

    SHA256

    ac5afced6515d12cf83466ea2dc0e874c9b5491beba0837a344e0e6093febc07

    SHA512

    ed1eea5ef6d894cb460c00a78bb8363159c6afd52d94446b48c644088d3aae0319411175112385d4e92d2f6bd5b89c03b0f6f140eb24d4b72848b8e2b1105b34

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

    Filesize

    352KB

    MD5

    e76dbb2f998c3ccf78e984001c9207c8

    SHA1

    9c27f473c6d8529f77fdfaac6615265d096b4f85

    SHA256

    ac5afced6515d12cf83466ea2dc0e874c9b5491beba0837a344e0e6093febc07

    SHA512

    ed1eea5ef6d894cb460c00a78bb8363159c6afd52d94446b48c644088d3aae0319411175112385d4e92d2f6bd5b89c03b0f6f140eb24d4b72848b8e2b1105b34

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

    Filesize

    352KB

    MD5

    e76dbb2f998c3ccf78e984001c9207c8

    SHA1

    9c27f473c6d8529f77fdfaac6615265d096b4f85

    SHA256

    ac5afced6515d12cf83466ea2dc0e874c9b5491beba0837a344e0e6093febc07

    SHA512

    ed1eea5ef6d894cb460c00a78bb8363159c6afd52d94446b48c644088d3aae0319411175112385d4e92d2f6bd5b89c03b0f6f140eb24d4b72848b8e2b1105b34

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

    Filesize

    352KB

    MD5

    e76dbb2f998c3ccf78e984001c9207c8

    SHA1

    9c27f473c6d8529f77fdfaac6615265d096b4f85

    SHA256

    ac5afced6515d12cf83466ea2dc0e874c9b5491beba0837a344e0e6093febc07

    SHA512

    ed1eea5ef6d894cb460c00a78bb8363159c6afd52d94446b48c644088d3aae0319411175112385d4e92d2f6bd5b89c03b0f6f140eb24d4b72848b8e2b1105b34

  • memory/4108-237-0x0000000000400000-0x000000000051A000-memory.dmp

    Filesize

    1.1MB

  • memory/4108-133-0x00000000024C0000-0x00000000024C1000-memory.dmp

    Filesize

    4KB

  • memory/4192-234-0x00000000006D0000-0x00000000006D1000-memory.dmp

    Filesize

    4KB

  • memory/4192-275-0x0000000000400000-0x000000000051A000-memory.dmp

    Filesize

    1.1MB

  • memory/4192-276-0x00000000006D0000-0x00000000006D1000-memory.dmp

    Filesize

    4KB

  • memory/4192-302-0x0000000000400000-0x000000000051A000-memory.dmp

    Filesize

    1.1MB

  • memory/4388-262-0x0000000010000000-0x0000000010018000-memory.dmp

    Filesize

    96KB