Analysis

  • max time kernel
    121s
  • max time network
    225s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    24-05-2022 22:53

General

  • Target

    77b558cdf1632ee728dfbb10f2f13aa415a8ff9d72fbd4e5f4874beeae523c7a.exe

  • Size

    908KB

  • MD5

    eaeba1a1735070ac50ac444460eb8362

  • SHA1

    75f76fa95e83f4f86523051cc87a039aed48aa6a

  • SHA256

    77b558cdf1632ee728dfbb10f2f13aa415a8ff9d72fbd4e5f4874beeae523c7a

  • SHA512

    ee54faf6440d47fc9a4771de7d47a0fa983c2990993fd42192cc56e7e142508de15031c4d272e5b752ca56e88b972979a4cffd7447756ef67b66bff65bc5f915

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 32 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\77b558cdf1632ee728dfbb10f2f13aa415a8ff9d72fbd4e5f4874beeae523c7a.exe
    "C:\Users\Admin\AppData\Local\Temp\77b558cdf1632ee728dfbb10f2f13aa415a8ff9d72fbd4e5f4874beeae523c7a.exe"
    1⤵
      PID:1080
    • 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:708
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:708 CREDAT:275457 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1980
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:708 CREDAT:537611 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1940
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
      1⤵
        PID:692
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:692 CREDAT:275457 /prefetch:2
          2⤵
            PID:1720
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
          1⤵
            PID:1336
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1336 CREDAT:275457 /prefetch:2
              2⤵
                PID:1964

            Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • memory/1080-54-0x0000000075DF1000-0x0000000075DF3000-memory.dmp

              Filesize

              8KB

            • memory/1080-55-0x0000000000220000-0x000000000022C000-memory.dmp

              Filesize

              48KB

            • memory/1080-56-0x0000000000400000-0x00000000004E5000-memory.dmp

              Filesize

              916KB

            • memory/1080-57-0x0000000000240000-0x0000000000251000-memory.dmp

              Filesize

              68KB