Analysis

  • max time kernel
    131s
  • max time network
    143s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    25-05-2022 00:08

General

  • Target

    f739cc7db37683186b5b28c6f1a0ba35da7cf4562837e78503cefbfb6c315d85.exe

  • Size

    908KB

  • MD5

    3e7a7d933d8f69e61cd6f815dcbcf842

  • SHA1

    f1025574dfd4995487a7d6169579782e96bd137c

  • SHA256

    f739cc7db37683186b5b28c6f1a0ba35da7cf4562837e78503cefbfb6c315d85

  • SHA512

    a322be0b35fd1195c0300b8e6b84541346e625768d45254411b605e123722a53067a19a4ae0e12cb08c206c68035e87bae9407b80efcd817d448925ccfbc783a

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 64 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SetWindowsHookEx 14 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f739cc7db37683186b5b28c6f1a0ba35da7cf4562837e78503cefbfb6c315d85.exe
    "C:\Users\Admin\AppData\Local\Temp\f739cc7db37683186b5b28c6f1a0ba35da7cf4562837e78503cefbfb6c315d85.exe"
    1⤵
      PID:1460
    • 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:1696
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1696 CREDAT:275457 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1388
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1696 CREDAT:930820 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1776
    • 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:928
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:928 CREDAT:275457 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1584
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
      • Modifies Internet Explorer settings
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:324
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:324 CREDAT:275457 /prefetch:2
        2⤵
          PID:1996

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/1460-54-0x00000000769D1000-0x00000000769D3000-memory.dmp

        Filesize

        8KB

      • memory/1460-55-0x0000000000220000-0x000000000022C000-memory.dmp

        Filesize

        48KB

      • memory/1460-56-0x0000000000400000-0x00000000004E5000-memory.dmp

        Filesize

        916KB

      • memory/1460-57-0x0000000000240000-0x0000000000251000-memory.dmp

        Filesize

        68KB