Analysis

  • max time kernel
    55s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    25-05-2022 00:19

General

  • Target

    74f31c7df9a18f4cd83f98eeb247095ad465866f418f7a412617d0916e23a913.exe

  • Size

    909KB

  • MD5

    3f6aa40faf3ce8a8687498da71706b72

  • SHA1

    a56d3e58fc1df38ec102e005d33aa1567bba1f8e

  • SHA256

    74f31c7df9a18f4cd83f98eeb247095ad465866f418f7a412617d0916e23a913

  • SHA512

    21876bb1f8e6c0d195eda27bcc42358c4a537159f47d4362e7176899a38f2b991ba340e6012b9a4f533a9931744be36532afc2ae5236552c73f126bd8cab99a5

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 24 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\74f31c7df9a18f4cd83f98eeb247095ad465866f418f7a412617d0916e23a913.exe
    "C:\Users\Admin\AppData\Local\Temp\74f31c7df9a18f4cd83f98eeb247095ad465866f418f7a412617d0916e23a913.exe"
    1⤵
      PID:1444
    • 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:1156
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1156 CREDAT:275457 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1240
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1156 CREDAT:472076 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:536
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
        PID:1292
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1292 CREDAT:275457 /prefetch:2
          2⤵
            PID:1484
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
          1⤵
            PID:1708
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1708 CREDAT:275457 /prefetch:2
              2⤵
                PID:872

            Network

            MITRE ATT&CK Matrix ATT&CK v6

            Defense Evasion

            Modify Registry

            1
            T1112

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • memory/1444-54-0x0000000076431000-0x0000000076433000-memory.dmp
              Filesize

              8KB

            • memory/1444-55-0x0000000000220000-0x000000000022C000-memory.dmp
              Filesize

              48KB

            • memory/1444-56-0x0000000000400000-0x00000000004E5000-memory.dmp
              Filesize

              916KB

            • memory/1444-57-0x0000000000240000-0x0000000000251000-memory.dmp
              Filesize

              68KB