Analysis

  • max time kernel
    163s
  • max time network
    181s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    15-02-2022 11:05

General

  • Target

    5a06437829417f3cafac0bdbb335300b187d670e66bcf2993ad662d2c672d4d2.exe

  • Size

    908KB

  • MD5

    452d7b7ded1a8b82959dc61c6d64652b

  • SHA1

    48cbb6c1f87741f3f77f52495bbef7ac296bbc56

  • SHA256

    5a06437829417f3cafac0bdbb335300b187d670e66bcf2993ad662d2c672d4d2

  • SHA512

    86162626ddcae09ae8a37a620a5658fb484a55024b448757b7495341f0017e49515aee0ad1155c9248ff542a3b24260929504a855ab9e638bf1cec6bc0c86ab8

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.

  • Drops file in Windows directory 3 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies Internet Explorer settings 1 TTPs 20 IoCs
  • Modifies data under HKEY_USERS 49 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5a06437829417f3cafac0bdbb335300b187d670e66bcf2993ad662d2c672d4d2.exe
    "C:\Users\Admin\AppData\Local\Temp\5a06437829417f3cafac0bdbb335300b187d670e66bcf2993ad662d2c672d4d2.exe"
    1⤵
      PID:2088
    • C:\Windows\system32\MusNotifyIcon.exe
      %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
      1⤵
      • Checks processor information in registry
      PID:4040
    • 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:3636
      • 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:3400
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3400 CREDAT:17410 /prefetch:2
          2⤵
            PID:3136
        • C:\Windows\System32\svchost.exe
          C:\Windows\System32\svchost.exe -k NetworkService -p
          1⤵
          • Drops file in Windows directory
          • Modifies data under HKEY_USERS
          PID:2020
        • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
          C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
          1⤵
          • Drops file in Windows directory
          • Suspicious use of AdjustPrivilegeToken
          PID:2600

        Network

        MITRE ATT&CK Matrix ATT&CK v6

        Defense Evasion

        Modify Registry

        1
        T1112

        Discovery

        Query Registry

        1
        T1012

        System Information Discovery

        1
        T1082

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/2088-134-0x0000000000400000-0x000000000040F000-memory.dmp
          Filesize

          60KB

        • memory/2088-133-0x00000000006A0000-0x00000000006AC000-memory.dmp
          Filesize

          48KB

        • memory/2088-135-0x0000000002240000-0x0000000002251000-memory.dmp
          Filesize

          68KB