Analysis

  • max time kernel
    67s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    25-05-2022 01:49

General

  • Target

    1c6852799eabf0c9e744016a3113af6d1185c3de41acdbf90c95297d252d01f9.exe

  • Size

    144KB

  • MD5

    37d8bced898bf955130f39645eba3f0a

  • SHA1

    c411ffa43ad7cf7bf321017e9a2d7d9bae1f0cf5

  • SHA256

    1c6852799eabf0c9e744016a3113af6d1185c3de41acdbf90c95297d252d01f9

  • SHA512

    1ae8c515a0a820552c8861fdde197dee0ea0f7fabae74ee4fac9c345f0e1dadf5448b0787cbedfa9e960980419dd3f59fbb8cae8da84df74283348ac80554eaa

Score
10/10

Malware Config

Extracted

Family

buer

C2

https://rawcookies.ru/

https://westkingz.ru/

Signatures

  • Buer

    Buer is a new modular loader first seen in August 2019.

  • Buer Loader 7 IoCs

    Detects Buer loader in memory or disk.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1c6852799eabf0c9e744016a3113af6d1185c3de41acdbf90c95297d252d01f9.exe
    "C:\Users\Admin\AppData\Local\Temp\1c6852799eabf0c9e744016a3113af6d1185c3de41acdbf90c95297d252d01f9.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1276
    • C:\Users\Admin\AppData\Local\Temp\1c6852799eabf0c9e744016a3113af6d1185c3de41acdbf90c95297d252d01f9.exe
      "{path}"
      2⤵
        PID:2000

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1276-54-0x0000000000B00000-0x0000000000B2A000-memory.dmp

      Filesize

      168KB

    • memory/1276-55-0x00000000003A0000-0x00000000003A8000-memory.dmp

      Filesize

      32KB

    • memory/1276-56-0x0000000000800000-0x0000000000818000-memory.dmp

      Filesize

      96KB

    • memory/2000-60-0x0000000040000000-0x000000004000C000-memory.dmp

      Filesize

      48KB

    • memory/2000-67-0x0000000040000000-0x000000004000C000-memory.dmp

      Filesize

      48KB

    • memory/2000-66-0x0000000075A61000-0x0000000075A63000-memory.dmp

      Filesize

      8KB

    • memory/2000-63-0x0000000040000000-0x000000004000C000-memory.dmp

      Filesize

      48KB

    • memory/2000-62-0x0000000040000000-0x000000004000C000-memory.dmp

      Filesize

      48KB

    • memory/2000-61-0x0000000040000000-0x000000004000C000-memory.dmp

      Filesize

      48KB

    • memory/2000-58-0x0000000040000000-0x000000004000C000-memory.dmp

      Filesize

      48KB

    • memory/2000-57-0x0000000040000000-0x000000004000C000-memory.dmp

      Filesize

      48KB

    • memory/2000-68-0x0000000040000000-0x000000004000C000-memory.dmp

      Filesize

      48KB