Resubmissions

26-10-2023 15:49

231026-s9ggraee74 10

11-10-2023 12:16

231011-pfymdseg4t 7

Analysis

  • max time kernel
    139s
  • max time network
    154s
  • platform
    windows10-1703_x64
  • resource
    win10-20231020-en
  • resource tags

    arch:x64arch:x86image:win10-20231020-enlocale:en-usos:windows10-1703-x64system
  • submitted
    26-10-2023 15:49

General

  • Target

    90e6ebc879283382d8b62679351ee7e1aaf7e79c23dd1e462e840838feaa5e69.exe

  • Size

    1.4MB

  • MD5

    bbf53c2f20ac95a3bc18ea7575f2344b

  • SHA1

    059d27dbb4777ed1f17b2aa42c0e7c19ad29b304

  • SHA256

    90e6ebc879283382d8b62679351ee7e1aaf7e79c23dd1e462e840838feaa5e69

  • SHA512

    1c4816500494015896d5b8d1b0b596d066ebcede33a7f1c8db4ed2708e2cd25c764860f8466d4662b4a402637e5085852fc0dc89f3c6dcd765f22f862ba45368

  • SSDEEP

    24576:H5khuFAeSwW1LS8s2tsiODbdGcE/61SHyV8UuThAbJfm9j+XcK8VodAeLJhUM8YJ:cuZW1LS8s2tsdDbC9SKdincKuodAeMMf

Malware Config

Extracted

Family

bunnyloader

C2

http://37.139.129.145/Bunny/StealerLogs/BunnyLogs_

Signatures

  • BunnyLoader

    BunnyLoader is a loader family written in C++.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Gathers system information 1 TTPs 1 IoCs

    Runs systeminfo.exe.

  • Suspicious use of AdjustPrivilegeToken 42 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\90e6ebc879283382d8b62679351ee7e1aaf7e79c23dd1e462e840838feaa5e69.exe
    "C:\Users\Admin\AppData\Local\Temp\90e6ebc879283382d8b62679351ee7e1aaf7e79c23dd1e462e840838feaa5e69.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:4180
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c wmic /namespace:\\root\SecurityCenter2 path AntiVirusProduct get displayName /value
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:512
      • C:\Windows\SysWOW64\Wbem\WMIC.exe
        wmic /namespace:\\root\SecurityCenter2 path AntiVirusProduct get displayName /value
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:760
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c systeminfo | findstr /B /C:"OS Name"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2104
      • C:\Windows\SysWOW64\systeminfo.exe
        systeminfo
        3⤵
        • Gathers system information
        PID:2128
      • C:\Windows\SysWOW64\findstr.exe
        findstr /B /C:"OS Name"
        3⤵
          PID:4128

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4180-0-0x00000000010E0000-0x000000000124E000-memory.dmp

      Filesize

      1.4MB