Analysis

  • max time kernel
    72s
  • max time network
    170s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    24-05-2022 21:54

General

  • Target

    58a61f5b21ee6b5a9f79f843d09bd75439c6a4dc0e4942c2f5f0d53e88387c7b.exe

  • Size

    909KB

  • MD5

    79dfa0b071be90bf392cbbe78934bdd7

  • SHA1

    ba2c5379611561589d8d2c372c45d41f66e88a67

  • SHA256

    58a61f5b21ee6b5a9f79f843d09bd75439c6a4dc0e4942c2f5f0d53e88387c7b

  • SHA512

    66e43a1c6ac77ed4fbc8b58c6abdf77256fa43f9aecdc9736297a2233b77e9a44c97493ced3551d5466acbfff44a755115ffa3f32881029d1e68111521cae8ce

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 26 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\58a61f5b21ee6b5a9f79f843d09bd75439c6a4dc0e4942c2f5f0d53e88387c7b.exe
    "C:\Users\Admin\AppData\Local\Temp\58a61f5b21ee6b5a9f79f843d09bd75439c6a4dc0e4942c2f5f0d53e88387c7b.exe"
    1⤵
      PID:1904
    • 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:2044
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2044 CREDAT:275457 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:740
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2044 CREDAT:472076 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:2024
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
        PID:1092
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1092 CREDAT:275457 /prefetch:2
          2⤵
            PID:1608
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
          1⤵
            PID:1516
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1516 CREDAT:275457 /prefetch:2
              2⤵
                PID:1644

            Network

            MITRE ATT&CK Matrix ATT&CK v6

            Defense Evasion

            Modify Registry

            1
            T1112

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • memory/1904-54-0x0000000075FB1000-0x0000000075FB3000-memory.dmp
              Filesize

              8KB

            • memory/1904-55-0x00000000003A0000-0x00000000003AC000-memory.dmp
              Filesize

              48KB

            • memory/1904-56-0x0000000000400000-0x00000000004E5000-memory.dmp
              Filesize

              916KB

            • memory/1904-57-0x00000000003C0000-0x00000000003D1000-memory.dmp
              Filesize

              68KB