Analysis

  • max time kernel
    129s
  • max time network
    147s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    24-05-2022 15:42

General

  • Target

    9efcb531d4ed1cd2d01f6d7ea4f743b78283f50efd81261a7ffb65ef931d4984.exe

  • Size

    249KB

  • MD5

    06c57423bd524418b88dd9f33dc9d14b

  • SHA1

    fc5d7d53efef62bc24285061399c8dc26327952d

  • SHA256

    9efcb531d4ed1cd2d01f6d7ea4f743b78283f50efd81261a7ffb65ef931d4984

  • SHA512

    d59c38ac4e1094fe766725a22265b9068f76b93f81a374ce6e47d56ba29ab2e77917c1c7d0b0b76262f885b6acc2b6b95ce7dbc6cbae8aab486ad351ff70eb8f

Malware Config

Extracted

Family

gozi_rm3

Attributes
  • build

    300904

Extracted

Family

gozi_rm3

Botnet

90420251

C2

https://vvietnamnews.xyz

Attributes
  • build

    300904

  • dga_base_url

    constitution.org/usdeclar.txt

  • dga_crc

    0x4eb7d2ca

  • dga_season

    10

  • dga_tlds

    com

    ru

    org

  • exe_type

    loader

  • non_target_locale

    RU

  • 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 30 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9efcb531d4ed1cd2d01f6d7ea4f743b78283f50efd81261a7ffb65ef931d4984.exe
    "C:\Users\Admin\AppData\Local\Temp\9efcb531d4ed1cd2d01f6d7ea4f743b78283f50efd81261a7ffb65ef931d4984.exe"
    1⤵
      PID:1652
    • 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:1728
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1728 CREDAT:275457 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1520
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
        PID:964
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:964 CREDAT:275457 /prefetch:2
          2⤵
            PID:1468

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1652-54-0x0000000076721000-0x0000000076723000-memory.dmp

          Filesize

          8KB

        • memory/1652-56-0x0000000000400000-0x000000000043F000-memory.dmp

          Filesize

          252KB

        • memory/1652-55-0x0000000000220000-0x0000000000248000-memory.dmp

          Filesize

          160KB

        • memory/1652-57-0x0000000000280000-0x0000000000297000-memory.dmp

          Filesize

          92KB