Analysis

  • max time kernel
    129s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    25-05-2022 00:08

General

  • Target

    f739cc7db37683186b5b28c6f1a0ba35da7cf4562837e78503cefbfb6c315d85.exe

  • Size

    908KB

  • MD5

    3e7a7d933d8f69e61cd6f815dcbcf842

  • SHA1

    f1025574dfd4995487a7d6169579782e96bd137c

  • SHA256

    f739cc7db37683186b5b28c6f1a0ba35da7cf4562837e78503cefbfb6c315d85

  • SHA512

    a322be0b35fd1195c0300b8e6b84541346e625768d45254411b605e123722a53067a19a4ae0e12cb08c206c68035e87bae9407b80efcd817d448925ccfbc783a

Malware Config

Extracted

Family

gozi_rm3

Attributes
  • build

    300854

  • exe_type

    loader

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 64 IoCs
  • Suspicious use of FindShellTrayWindow 5 IoCs
  • Suspicious use of SetWindowsHookEx 22 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f739cc7db37683186b5b28c6f1a0ba35da7cf4562837e78503cefbfb6c315d85.exe
    "C:\Users\Admin\AppData\Local\Temp\f739cc7db37683186b5b28c6f1a0ba35da7cf4562837e78503cefbfb6c315d85.exe"
    1⤵
      PID:1860
    • 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:4176
      • 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:1892
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1892 CREDAT:17410 /prefetch:2
          2⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:4260
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1892 CREDAT:82950 /prefetch:2
          2⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:4568
      • 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:1288
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1288 CREDAT:17410 /prefetch:2
          2⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:2460
      • 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:3932
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3932 CREDAT:17410 /prefetch:2
          2⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:1372
      • 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:2536
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2536 CREDAT:17410 /prefetch:2
          2⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:900
      • C:\Program Files\Internet Explorer\iexplore.exe
        "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
        1⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1724
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1724 CREDAT:17410 /prefetch:2
          2⤵
            PID:3892

        Network

        MITRE ATT&CK Matrix ATT&CK v6

        Defense Evasion

        Modify Registry

        1
        T1112

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1860-130-0x0000000002240000-0x0000000002251000-memory.dmp
          Filesize

          68KB

        • memory/1860-136-0x0000000002220000-0x000000000222C000-memory.dmp
          Filesize

          48KB

        • memory/1860-137-0x0000000000400000-0x00000000004E5000-memory.dmp
          Filesize

          916KB