Analysis

  • max time kernel
    94s
  • max time network
    169s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    25-05-2022 00:08

General

  • Target

    89cb0c7c835e9a8f77e78f26c0ee38f83bf9da8b31dcd08ed9326fdd3958f534.exe

  • Size

    619KB

  • MD5

    f243b66901d4a69ded543d8bd4bc8db5

  • SHA1

    603f66c0f68441528fe1ab7b39d1023fef266c3d

  • SHA256

    89cb0c7c835e9a8f77e78f26c0ee38f83bf9da8b31dcd08ed9326fdd3958f534

  • SHA512

    f092cb8565f0d346025b7e70069a8c218e07f07f151a6a37c624f63baf71bd46e00bfef6225722d5c2128de8fd397111d485036d1545cd07530d6b4fb5fe6ff7

Malware Config

Extracted

Family

gozi_rm3

Attributes
  • build

    300900

Extracted

Family

gozi_rm3

Botnet

90020242

C2

https://vrhgroups.xyz

Attributes
  • build

    300900

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\89cb0c7c835e9a8f77e78f26c0ee38f83bf9da8b31dcd08ed9326fdd3958f534.exe
    "C:\Users\Admin\AppData\Local\Temp\89cb0c7c835e9a8f77e78f26c0ee38f83bf9da8b31dcd08ed9326fdd3958f534.exe"
    1⤵
      PID:960
    • 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:580
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:580 CREDAT:275457 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:328
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
        PID:588
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:588 CREDAT:275457 /prefetch:2
          2⤵
            PID:764
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
          1⤵
            PID:1672
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1672 CREDAT:275457 /prefetch:2
              2⤵
                PID:1544

            Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • memory/960-54-0x0000000075711000-0x0000000075713000-memory.dmp

              Filesize

              8KB

            • memory/960-55-0x0000000000220000-0x0000000000248000-memory.dmp

              Filesize

              160KB

            • memory/960-56-0x0000000000400000-0x000000000049B000-memory.dmp

              Filesize

              620KB

            • memory/960-57-0x0000000000280000-0x0000000000296000-memory.dmp

              Filesize

              88KB