Analysis

  • max time kernel
    48s
  • max time network
    169s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    24-05-2022 22:15

General

  • Target

    f50d1e63bce73f3e0862b38da0aee680f3da928e716f4c12c1fb4e129eb3806d.exe

  • Size

    908KB

  • MD5

    79c0f0633ec1caf5c12ac4d50d31237a

  • SHA1

    03d2470b0ae2b4097d35c9937ed88fb221a60507

  • SHA256

    f50d1e63bce73f3e0862b38da0aee680f3da928e716f4c12c1fb4e129eb3806d

  • SHA512

    44c3e64737c9e520d270c8c9a7cee2439f59390b8771abac117bc04ca3aba5fdd06e4a521a44e2fcd2d0085c134663eb3005a0e15e447ed4da3edc235c8929f7

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 23 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f50d1e63bce73f3e0862b38da0aee680f3da928e716f4c12c1fb4e129eb3806d.exe
    "C:\Users\Admin\AppData\Local\Temp\f50d1e63bce73f3e0862b38da0aee680f3da928e716f4c12c1fb4e129eb3806d.exe"
    1⤵
      PID:1812
    • 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:1996
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1996 CREDAT:275457 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1056
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1996 CREDAT:275470 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        PID:1356
    • 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:832
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
          1⤵
            PID:1488
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1488 CREDAT:275457 /prefetch:2
              2⤵
                PID:1468

            Network

            MITRE ATT&CK Matrix ATT&CK v6

            Defense Evasion

            Modify Registry

            1
            T1112

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • memory/1812-54-0x00000000755C1000-0x00000000755C3000-memory.dmp
              Filesize

              8KB

            • memory/1812-56-0x0000000000400000-0x00000000004E5000-memory.dmp
              Filesize

              916KB

            • memory/1812-55-0x0000000000220000-0x000000000022C000-memory.dmp
              Filesize

              48KB

            • memory/1812-57-0x00000000002C0000-0x00000000002D1000-memory.dmp
              Filesize

              68KB