Analysis

  • max time kernel
    149s
  • max time network
    168s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-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

  • exe_type

    loader

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 10 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\17748fbfb1fff859df80148a390e9a6f571cf4550f1295dcbb8561efc06c317c.exe
    "C:\Users\Admin\AppData\Local\Temp\17748fbfb1fff859df80148a390e9a6f571cf4550f1295dcbb8561efc06c317c.exe"
    1⤵
      PID:2920
    • C:\Program Files (x86)\Internet Explorer\ielowutil.exe
      "C:\Program Files (x86)\Internet Explorer\ielowutil.exe" -CLSID:{0002DF01-0000-0000-C000-000000000046} -Embedding
      1⤵
        PID:4928
      • 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:2992
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2992 CREDAT:17410 /prefetch:2
          2⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:1632
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2992 CREDAT:82950 /prefetch:2
          2⤵
            PID:4472
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
          1⤵
            PID:4044
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4044 CREDAT:17410 /prefetch:2
              2⤵
                PID:3660
            • C:\Program Files\Internet Explorer\iexplore.exe
              "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
              1⤵
                PID:2924
                • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2924 CREDAT:17410 /prefetch:2
                  2⤵
                    PID:1864
                • C:\Program Files\Internet Explorer\iexplore.exe
                  "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
                  1⤵
                    PID:1088
                    • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                      "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1088 CREDAT:17410 /prefetch:2
                      2⤵
                        PID:2112
                    • C:\Program Files\Internet Explorer\iexplore.exe
                      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
                      1⤵
                        PID:2848
                        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2848 CREDAT:17410 /prefetch:2
                          2⤵
                            PID:4692
                        • C:\Program Files\Internet Explorer\iexplore.exe
                          "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
                          1⤵
                            PID:1280
                            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1280 CREDAT:17410 /prefetch:2
                              2⤵
                                PID:4856

                            Network

                            MITRE ATT&CK Enterprise v6

                            Replay Monitor

                            Loading Replay Monitor...

                            Downloads

                            • memory/2920-130-0x00000000004E0000-0x00000000004EC000-memory.dmp

                              Filesize

                              48KB

                            • memory/2920-132-0x0000000000500000-0x0000000000511000-memory.dmp

                              Filesize

                              68KB

                            • memory/2920-131-0x0000000000400000-0x0000000000413000-memory.dmp

                              Filesize

                              76KB