Analysis

  • max time kernel
    94s
  • max time network
    205s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    24-05-2022 22:54

General

  • Target

    17748fbfb1fff859df80148a390e9a6f571cf4550f1295dcbb8561efc06c317c.exe

  • Size

    72KB

  • MD5

    ffd9cefe91a9cf391a04187d0a05c39b

  • SHA1

    8bcda3c8068ef39b4c0662bdbed5cfa6426af9b0

  • SHA256

    17748fbfb1fff859df80148a390e9a6f571cf4550f1295dcbb8561efc06c317c

  • SHA512

    83701dd5b5aa21c5a9e020ed850761ca8f1490ad054779e5ccbeb418dab836090ba77103358036c0a9bb1e8d8f803fa8c8626a7f1bc01943d442e95761481bcc

Malware Config

Extracted

Family

gozi_rm3

Attributes
  • build

    300854

Extracted

Family

gozi_rm3

Botnet

202004022

C2

https://karntnatural.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 50 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\17748fbfb1fff859df80148a390e9a6f571cf4550f1295dcbb8561efc06c317c.exe
    "C:\Users\Admin\AppData\Local\Temp\17748fbfb1fff859df80148a390e9a6f571cf4550f1295dcbb8561efc06c317c.exe"
    1⤵
      PID:1724
    • 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:2016
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2016 CREDAT:275457 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:388
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2016 CREDAT:537616 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1416
    • 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:968
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:968 CREDAT:275457 /prefetch:2
        2⤵
          PID:1672
      • C:\Program Files\Internet Explorer\iexplore.exe
        "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
        1⤵
          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⤵
              PID:268
          • C:\Program Files\Internet Explorer\iexplore.exe
            "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
            1⤵
              PID:1716
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1716 CREDAT:275457 /prefetch:2
                2⤵
                  PID:2032
              • C:\Program Files\Internet Explorer\iexplore.exe
                "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
                1⤵
                  PID:1096
                  • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                    "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1096 CREDAT:275457 /prefetch:2
                    2⤵
                      PID:1484

                  Network

                  MITRE ATT&CK Enterprise v6

                  Replay Monitor

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                  Downloads

                  • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\{4CEFF2E3-DBC6-11EC-BE80-5AC3572C4626}.dat

                    Filesize

                    4KB

                    MD5

                    dccf13992b48aefcadcc7e745789c430

                    SHA1

                    5a0d2cf61d83b6c968a8369335ee132279310dfe

                    SHA256

                    d0e6b3dc40e521c808a9ea30ef0d61f11ca68f0a6318a6011a6204aca5117d25

                    SHA512

                    f7b21192fb33e3c7749950ea515a77bc4a607a8e2809d92298bf68a0c5bee460a3bff34e3679a070f5af91b041b5c1deefe6fb70114688e38cd894ee68f1b787

                  • memory/1724-54-0x0000000000220000-0x000000000022C000-memory.dmp

                    Filesize

                    48KB

                  • memory/1724-55-0x0000000000400000-0x0000000000413000-memory.dmp

                    Filesize

                    76KB

                  • memory/1724-56-0x00000000752B1000-0x00000000752B3000-memory.dmp

                    Filesize

                    8KB

                  • memory/1724-57-0x00000000002C0000-0x00000000002D1000-memory.dmp

                    Filesize

                    68KB