Analysis

  • max time kernel
    147s
  • max time network
    171s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    20-05-2022 21:59

General

  • Target

    68bfe6b5c89702ecd6a5fc1061a57c2bc6c5e492af781c664a6d59b99b1c9524.exe

  • Size

    908KB

  • MD5

    8deccf75394b06fe4699e615d912fbc8

  • SHA1

    4beeecd6565d3660bd69bd0987bef5ab2e56d640

  • SHA256

    68bfe6b5c89702ecd6a5fc1061a57c2bc6c5e492af781c664a6d59b99b1c9524

  • SHA512

    800c5669043146d40ed6d190643989a1bc8747030304fb4a86f323cf06cc76ad9a91ed6837038729c66e5f1a636c4dfeceb227b9739e768a74cb6c24d312d086

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 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\68bfe6b5c89702ecd6a5fc1061a57c2bc6c5e492af781c664a6d59b99b1c9524.exe
    "C:\Users\Admin\AppData\Local\Temp\68bfe6b5c89702ecd6a5fc1061a57c2bc6c5e492af781c664a6d59b99b1c9524.exe"
    1⤵
      PID:1752
    • 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:1868
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1868 CREDAT:275457 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1236
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1868 CREDAT:406537 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1456
    • 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:1732
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1732 CREDAT:275457 /prefetch:2
        2⤵
        • Suspicious use of SetWindowsHookEx
        PID:1180
    • 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:1680
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1680 CREDAT:275457 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:660

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Modify Registry

    1
    T1112

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1752-54-0x00000000750C1000-0x00000000750C3000-memory.dmp
      Filesize

      8KB

    • memory/1752-55-0x00000000002A0000-0x00000000002AC000-memory.dmp
      Filesize

      48KB

    • memory/1752-56-0x0000000000400000-0x00000000004E5000-memory.dmp
      Filesize

      916KB

    • memory/1752-57-0x00000000002C0000-0x00000000002D1000-memory.dmp
      Filesize

      68KB