Analysis

  • max time kernel
    165s
  • max time network
    180s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    01/02/2022, 08:51

General

  • Target
    eecd9a9813b954f7daf54b1e0bc34fb46c6b13cf2aa2f3051975548943682468.exe
  • Size 54KB
  • Sample220201-ksb7psbgbl
  • SHA256 eecd9a9813b954f7daf54b1e0bc34fb46c6b13cf2aa2f3051975548943682468
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • gozi_rm3

Attributes
  • exe_type

    loader

Extracted

Family
  • gozi_rm3

Botnet
  • 913101

C2
  • https://veraensue.xyz

Attributes
  • build

    300913

  • dga_base_url

    constitution.org/usdeclar.txt

  • dga_crc

    0x4eb7d2ca

  • dga_season

    10

  • dga_tlds

    com

    ru

    org

  • exe_type

    loader

  • non_target_locale

    RU

  • server_id

    12

  • url_path

    index.htm

rsa_pubkey.plain
serpent.plain

Signatures

  • Gozi RM3

    A heavily modified version of Gozi using RM3 loader.

  • Sets service image path in registry 2 TTPs
  • Drops file in Windows directory 6 IoCs
  • Modifies Internet Explorer settings 1 TTPs 56 IoCs
  • Modifies data under HKEY_USERS 41 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\eecd9a9813b954f7daf54b1e0bc34fb46c6b13cf2aa2f3051975548943682468.exe
    "C:\Users\Admin\AppData\Local\Temp\eecd9a9813b954f7daf54b1e0bc34fb46c6b13cf2aa2f3051975548943682468.exe"
    1⤵
      PID:3460
    • C:\Windows\System32\WaaSMedicAgent.exe
      C:\Windows\System32\WaaSMedicAgent.exe 5bc61855168ac6bc8382ba054a3d7d70 HEi96ZH5BEeV6ft6KBdI+g.0.1.0.0.0
      1⤵
      • Modifies data under HKEY_USERS
      PID:4696
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
      1⤵
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:764
    • 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:2964
      • 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:1360
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1360 CREDAT:17410 /prefetch:2
          2⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:3528
      • 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:1168
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1168 CREDAT:17410 /prefetch:2
          2⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:1440
      • 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:1976
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1976 CREDAT:17410 /prefetch:2
          2⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:3928

      Network

            MITRE ATT&CK Enterprise v6

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            Downloads

            memory/764-145-0x000001B80C340000-0x000001B80C344000-memory.dmp

            memory/3460-130-0x00000000001C0000-0x00000000001D7000-memory.dmp