Analysis

  • max time kernel
    86s
  • max time network
    166s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    25-05-2022 00:20

General

  • Target

    f8557cf122b8c7257284773993de2934d76c7671acf45b50ffa0763dfd2902e6.exe

  • Size

    908KB

  • MD5

    54f2a09e7dcf732daf36be10f49facf9

  • SHA1

    e0e03909338924dc725a836b4e75335641419fbb

  • SHA256

    f8557cf122b8c7257284773993de2934d76c7671acf45b50ffa0763dfd2902e6

  • SHA512

    b2057be66590b4f97aca6f3ba3f04f0f21fe869c279a8b3b95b2a1383660769b6ffe18e947f0e0ec942478313f60002f9afdc127c2cf60fac42679514b917a41

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\f8557cf122b8c7257284773993de2934d76c7671acf45b50ffa0763dfd2902e6.exe
    "C:\Users\Admin\AppData\Local\Temp\f8557cf122b8c7257284773993de2934d76c7671acf45b50ffa0763dfd2902e6.exe"
    1⤵
      PID:1684
    • 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:2024
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2024 CREDAT:275457 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1568
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2024 CREDAT:930821 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:828
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
        PID:1612
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1612 CREDAT:275457 /prefetch:2
          2⤵
            PID:1336

        Network

        MITRE ATT&CK Matrix ATT&CK v6

        Defense Evasion

        Modify Registry

        1
        T1112

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1684-54-0x0000000075941000-0x0000000075943000-memory.dmp
          Filesize

          8KB

        • memory/1684-56-0x0000000000400000-0x00000000004E5000-memory.dmp
          Filesize

          916KB

        • memory/1684-55-0x00000000003A0000-0x00000000003AC000-memory.dmp
          Filesize

          48KB

        • memory/1684-57-0x00000000003E0000-0x00000000003F1000-memory.dmp
          Filesize

          68KB