Analysis

  • max time kernel
    152s
  • max time network
    166s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    20-05-2022 06:47

General

  • Target

    4fca49395c8ab232b530439beb94f03c06d9c6447aa0ac153bdcbc8af94d547e.exe

  • Size

    619KB

  • MD5

    8f0710c9aad0a0b3d467840a0d8c0821

  • SHA1

    c75ece5ebabe0b1caa90fc04c62b9e7d5e7aefb9

  • SHA256

    4fca49395c8ab232b530439beb94f03c06d9c6447aa0ac153bdcbc8af94d547e

  • SHA512

    a25a440f16cc8195ead6a5501cc663b6e662284841a2e4577dd556a18bb384e8bd8b1d31710d8e8c8d5ca48eac92665e7b05cfa1b3ef6440c4f21e00f433b2b5

Malware Config

Extracted

Family

gozi_rm3

Attributes
  • build

    300900

Extracted

Family

gozi_rm3

Botnet

90020242

C2

https://vrhgroups.xyz

Attributes
  • build

    300900

  • 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 4 IoCs
  • Suspicious use of SetWindowsHookEx 16 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4fca49395c8ab232b530439beb94f03c06d9c6447aa0ac153bdcbc8af94d547e.exe
    "C:\Users\Admin\AppData\Local\Temp\4fca49395c8ab232b530439beb94f03c06d9c6447aa0ac153bdcbc8af94d547e.exe"
    1⤵
      PID:1420
    • 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:1884
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1884 CREDAT:275457 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1280
    • 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:1004
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1004 CREDAT:275457 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1620
    • 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:568
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:568 CREDAT:275457 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:572
    • 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:1184
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1184 CREDAT:275457 /prefetch:2
        2⤵
        • Suspicious use of SetWindowsHookEx
        PID:1624

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1420-54-0x00000000752B1000-0x00000000752B3000-memory.dmp

      Filesize

      8KB

    • memory/1420-55-0x0000000000220000-0x0000000000248000-memory.dmp

      Filesize

      160KB

    • memory/1420-56-0x0000000000400000-0x000000000049B000-memory.dmp

      Filesize

      620KB

    • memory/1420-57-0x0000000000280000-0x0000000000296000-memory.dmp

      Filesize

      88KB