Analysis

  • max time kernel
    155s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/10/2023, 23:33

General

  • Target

    b1aeffc018e1c7c27e49b24af943455b3822637c6c1a7ac83fe9255e51b85668.exe

  • Size

    29KB

  • MD5

    a4b2905234a753d106727854a99cc1db

  • SHA1

    9e3d72686118276feefdf348ba1e5745181da136

  • SHA256

    b1aeffc018e1c7c27e49b24af943455b3822637c6c1a7ac83fe9255e51b85668

  • SHA512

    c2cb1e1b464f8a2572c5fefec982e5d97470b7e4ce6b8414129c0df1e5a5c53b2f8ddd9d326f6c064b60f953eb67e8df5f28cc6b0dd2457c158626081355bb26

  • SSDEEP

    384:NbbkHk81Gt5M0zhIV/DZ3KZp7JcTO4yf9Knuf2MqlUV2V9wVfUnfRqOzGOnJh:pmn16GVRu1yK9fMnJG2V9dHS8

Score
6/10

Malware Config

Signatures

  • Enumerates connected drives 3 TTPs 21 IoCs

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

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 20 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:3232
      • C:\Users\Admin\AppData\Local\Temp\b1aeffc018e1c7c27e49b24af943455b3822637c6c1a7ac83fe9255e51b85668.exe
        "C:\Users\Admin\AppData\Local\Temp\b1aeffc018e1c7c27e49b24af943455b3822637c6c1a7ac83fe9255e51b85668.exe"
        2⤵
        • Enumerates connected drives
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4596
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3044
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
              PID:4964

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files\7-Zip\7zG.exe

        Filesize

        597KB

        MD5

        aac8a9c7339273e71c8fbcfb6ea635f2

        SHA1

        9006a0e17c7e6bb42bb75e866005b4a2c025748c

        SHA256

        73551453edf1a9bab241936e8c0063ac49231ad3a8f5ddb9cf542e3a08dbe7d1

        SHA512

        e13264af4aed9c340ba2b8a5c3d7391b86a7689780cae819657fb721464286a77f8e69c567275d89773945956e0d4484a76f0ec7e6856b395a328d0ab30576b0

      • F:\$RECYCLE.BIN\S-1-5-21-2344688013-2965468717-2034126-1000\_desktop.ini

        Filesize

        10B

        MD5

        dbf19ca54500e964528b156763234c1d

        SHA1

        05376f86423aec8badf0adbc47887234ac83ef5a

        SHA256

        bfa0ad2e861e2369dc239edf8f62fbe1c4507d877ec2f76e46e48f1e68fdd5ae

        SHA512

        fb8ce1253ad6d3c1b7d970614dbc2d21574576336a490b54a8dc705a3d8637c0669747ba821fb2f4da14d7447dc24607aca988b0cd3bd9fc4d9d5988b4b631d0

      • memory/4596-23-0x0000000000400000-0x0000000000436000-memory.dmp

        Filesize

        216KB

      • memory/4596-6-0x0000000000400000-0x0000000000436000-memory.dmp

        Filesize

        216KB

      • memory/4596-13-0x0000000000400000-0x0000000000436000-memory.dmp

        Filesize

        216KB

      • memory/4596-19-0x0000000000400000-0x0000000000436000-memory.dmp

        Filesize

        216KB

      • memory/4596-0-0x0000000000400000-0x0000000000436000-memory.dmp

        Filesize

        216KB

      • memory/4596-24-0x0000000000400000-0x0000000000436000-memory.dmp

        Filesize

        216KB

      • memory/4596-26-0x0000000000400000-0x0000000000436000-memory.dmp

        Filesize

        216KB

      • memory/4596-30-0x0000000000400000-0x0000000000436000-memory.dmp

        Filesize

        216KB

      • memory/4596-5-0x0000000000400000-0x0000000000436000-memory.dmp

        Filesize

        216KB

      • memory/4596-63-0x0000000000400000-0x0000000000436000-memory.dmp

        Filesize

        216KB

      • memory/4596-163-0x0000000000400000-0x0000000000436000-memory.dmp

        Filesize

        216KB