Analysis

  • max time kernel
    182s
  • max time network
    199s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    25-05-2022 02:18

General

  • Target

    3ce1a0b8cf3bee00089a91c662f0a0e7d9ac4d1e0c3984df55163f88c864ea0a.exe

  • Size

    908KB

  • MD5

    fa4108c7d2f3513bc69ba5a2dc5442ee

  • SHA1

    5568156adac734cc6a3d7e02fb63fba222363284

  • SHA256

    3ce1a0b8cf3bee00089a91c662f0a0e7d9ac4d1e0c3984df55163f88c864ea0a

  • SHA512

    e9876aacdb627c18811a43ae8ddec67e2c05f974385cf6c6527366fc18ab4f7d3523a97c0f4c06ea5a0a7b6f33503552c94a556516fe24fde15984e6b08e0a4f

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 5 IoCs
  • Suspicious use of SetWindowsHookEx 20 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3ce1a0b8cf3bee00089a91c662f0a0e7d9ac4d1e0c3984df55163f88c864ea0a.exe
    "C:\Users\Admin\AppData\Local\Temp\3ce1a0b8cf3bee00089a91c662f0a0e7d9ac4d1e0c3984df55163f88c864ea0a.exe"
    1⤵
      PID:1872
    • 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:4836
      • 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:1640
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1640 CREDAT:17410 /prefetch:2
          2⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:2692
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1640 CREDAT:82950 /prefetch:2
          2⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:2444
      • 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:2796
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2796 CREDAT:17410 /prefetch:2
          2⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:3840
      • 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:4456
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4456 CREDAT:17410 /prefetch:2
          2⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:1000
      • 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:3912
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3912 CREDAT:17410 /prefetch:2
          2⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:2052

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Defense Evasion

      Modify Registry

      1
      T1112

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\{372445ED-DBE4-11EC-AC67-7E9F925D3B67}.dat
        Filesize

        3KB

        MD5

        4b86a495e424ef5a999fdbb0372549ef

        SHA1

        b870a093a9b6bdf4a9bc9b5e377e312d587df46c

        SHA256

        3e8ed81f7236897c206c800e7e0ad7a18273d4c97b8bd384f9c6a3b3efb5310a

        SHA512

        99450e60783e5a2366b73fc082a3e5ba043b1264862169709111cc4c6356576dd4735475afe3543bb77df3fdcb0c14172710b9e61cd99e0b2b720497b16fa858

      • memory/1872-131-0x0000000000400000-0x00000000004E5000-memory.dmp
        Filesize

        916KB

      • memory/1872-130-0x0000000000560000-0x000000000056C000-memory.dmp
        Filesize

        48KB

      • memory/1872-132-0x0000000000580000-0x0000000000591000-memory.dmp
        Filesize

        68KB