Analysis

  • max time kernel
    4294180s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20220311-en
  • submitted
    11-04-2022 03:07

General

  • Target

    fileman.dll

  • Size

    213KB

  • MD5

    6f3be0dfe6b5971b16464b7924772445

  • SHA1

    8af5e975c00f5bdbd843f644a60adbb5f8da8a0d

  • SHA256

    b51cb6fa584a073fe95bcf8749cf84363cb431f520a5d97cec92aae88329b7cb

  • SHA512

    a1a8d49ec7610c37284a2e9f7409f1f93343c7d9c676985b9a3759388835880e7e376451e89294654cb4fc0f6c6386876896da50347c8bc4a98b80b1825cd5ef

Malware Config

Extracted

Family

bazarloader

C2

148.163.42.213

5.255.102.10

188.127.235.177

23.160.193.221

reddew28c.bazar

bluehail.bazar

whitestorm9p.bazar

Signatures

  • Bazar Loader

    Detected loader normally used to deploy BazarBackdoor malware.

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\fileman.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2032
    • C:\Windows\system32\cmd.exe
      cmd /c ping 192.0.2.78 -n 7 -4 -w 1000 & "C:\Windows\system32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\fileman.dll", #1 wD6bUqfE kO5rG7fD & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:764
      • C:\Windows\system32\PING.EXE
        ping 192.0.2.78 -n 7 -4 -w 1000
        3⤵
        • Runs ping.exe
        PID:1820
      • C:\Windows\system32\rundll32.exe
        "C:\Windows\system32\rundll32.exe" "C:\Users\Admin\AppData\Local\Temp\fileman.dll", #1 wD6bUqfE kO5rG7fD
        3⤵
          PID:1144

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Discovery

    Remote System Discovery

    1
    T1018

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/764-55-0x0000000000000000-mapping.dmp
    • memory/1144-57-0x0000000000000000-mapping.dmp
    • memory/1144-58-0x0000000001B00000-0x0000000001B20000-memory.dmp
      Filesize

      128KB

    • memory/1820-56-0x0000000000000000-mapping.dmp
    • memory/2032-54-0x00000000001D0000-0x00000000001F0000-memory.dmp
      Filesize

      128KB