Analysis

  • max time kernel
    68s
  • max time network
    182s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    25-05-2022 01:51

General

  • Target

    b8314f5c8a3e09c76b50c26b5607a0ffc63ed15d15f97cc0ae81bc6472e48aae.exe

  • Size

    908KB

  • MD5

    8d42bbfbed93e7e397a8bf5ba4c1a700

  • SHA1

    dd20aa55fa7d42ec209ab9ef403264f813cbfad1

  • SHA256

    b8314f5c8a3e09c76b50c26b5607a0ffc63ed15d15f97cc0ae81bc6472e48aae

  • SHA512

    438389de1a22c4565a5c9aedb368dc2ba0a68dfe4557efb8a88384b1951699ca06513f6f41f72f943fe4fefa58cef94774e58042e242621fe386f132116c8de3

Malware Config

Extracted

Family

gozi_rm3

Attributes
  • build

    300854

Extracted

Family

gozi_rm3

Botnet

202004141

C2

https://devicelease.xyz

Attributes
  • build

    300854

  • dga_base_url

    constitution.org/usdeclar.txt

  • dga_crc

    0x4eb7d2ca

  • dga_season

    10

  • dga_tlds

    com

    ru

    org

  • exe_type

    loader

  • server_id

    12

  • url_path

    index.htm

rsa_pubkey.plain
serpent.plain

Signatures

  • Gozi RM3

    A heavily modified version of Gozi using RM3 loader.

  • Modifies Internet Explorer settings 1 TTPs 26 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b8314f5c8a3e09c76b50c26b5607a0ffc63ed15d15f97cc0ae81bc6472e48aae.exe
    "C:\Users\Admin\AppData\Local\Temp\b8314f5c8a3e09c76b50c26b5607a0ffc63ed15d15f97cc0ae81bc6472e48aae.exe"
    1⤵
      PID:1656
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:952
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:952 CREDAT:275457 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1400
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:952 CREDAT:275470 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:956
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
        PID:1784
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1784 CREDAT:275457 /prefetch:2
          2⤵
            PID:1740
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
          1⤵
            PID:1868
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1868 CREDAT:275457 /prefetch:2
              2⤵
                PID:1440

            Network

            MITRE ATT&CK Matrix ATT&CK v6

            Defense Evasion

            Modify Registry

            1
            T1112

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • memory/1656-54-0x0000000075361000-0x0000000075363000-memory.dmp
              Filesize

              8KB

            • memory/1656-55-0x00000000003A0000-0x00000000003AC000-memory.dmp
              Filesize

              48KB

            • memory/1656-56-0x0000000000400000-0x00000000004E5000-memory.dmp
              Filesize

              916KB

            • memory/1656-57-0x00000000003C0000-0x00000000003D1000-memory.dmp
              Filesize

              68KB