Analysis

  • max time kernel
    81s
  • max time network
    172s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    25-05-2022 00:14

General

  • Target

    b2d539f0a6b0ba2b2f1b0cbedecb295ed0b02520c8efa281bb4fef6ac63fb56a.exe

  • Size

    908KB

  • MD5

    bf6239f4ae7969d2d236287e9ea69525

  • SHA1

    53717e61a1622a84a397e8d77928a2545e7f56cf

  • SHA256

    b2d539f0a6b0ba2b2f1b0cbedecb295ed0b02520c8efa281bb4fef6ac63fb56a

  • SHA512

    d41e45f5b8afa5fb306fd96c601431ce2bb6760bcf2a66c7ad27063d77e95b39d161be98542d6dd4841c0be9968dd20643e80028aaad7794280583474a44e1d4

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\b2d539f0a6b0ba2b2f1b0cbedecb295ed0b02520c8efa281bb4fef6ac63fb56a.exe
    "C:\Users\Admin\AppData\Local\Temp\b2d539f0a6b0ba2b2f1b0cbedecb295ed0b02520c8efa281bb4fef6ac63fb56a.exe"
    1⤵
      PID:1896
    • 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:1984
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1984 CREDAT:275457 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1088
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1984 CREDAT:275470 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1536
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
        PID:924
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:924 CREDAT:275457 /prefetch:2
          2⤵
            PID:1708
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
          1⤵
            PID:1144
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1144 CREDAT:275457 /prefetch:2
              2⤵
                PID:1588

            Network

            MITRE ATT&CK Matrix ATT&CK v6

            Defense Evasion

            Modify Registry

            1
            T1112

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • memory/1896-54-0x00000000765F1000-0x00000000765F3000-memory.dmp
              Filesize

              8KB

            • memory/1896-55-0x0000000000220000-0x000000000022C000-memory.dmp
              Filesize

              48KB

            • memory/1896-56-0x0000000000400000-0x00000000004E5000-memory.dmp
              Filesize

              916KB

            • memory/1896-57-0x0000000000240000-0x0000000000251000-memory.dmp
              Filesize

              68KB