Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 06:46

General

  • Target

    a3a965b776fe693f43ffa11192054a6fe337b4557598e9b5f47dd92922bd6766.exe

  • Size

    908KB

  • MD5

    cdbe2aaea22adb0631a3b87eb23196b3

  • SHA1

    364f87fdc234ad1e907c9afccb0b472bfe0a8b72

  • SHA256

    a3a965b776fe693f43ffa11192054a6fe337b4557598e9b5f47dd92922bd6766

  • SHA512

    a14d84390bcc54a305b1dd43ab595c7ba690ce327ac6b3db2056ad2c1b6884c3fe2a71d0e5fb5bf5ddffc914fcf862819834c0cd71d0c8d5e7901914ea847a62

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 3 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a3a965b776fe693f43ffa11192054a6fe337b4557598e9b5f47dd92922bd6766.exe
    "C:\Users\Admin\AppData\Local\Temp\a3a965b776fe693f43ffa11192054a6fe337b4557598e9b5f47dd92922bd6766.exe"
    1⤵
      PID:3220
    • 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:2052
      • 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:2068
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2068 CREDAT:17410 /prefetch:2
          2⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:4288
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2068 CREDAT:82952 /prefetch:2
          2⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:2328
      • 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:5076
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:5076 CREDAT:17410 /prefetch:2
          2⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:3124

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\28c8b86deab549a1.customDestinations-ms

        Filesize

        3KB

        MD5

        42ffdd27c7e79d5468cdcc787d2e0a40

        SHA1

        bb3f9192d9577f25ca652eebc1685e95b3fb10ae

        SHA256

        788dee3d14f743361da7389f5dee1e2b7fe454c0f86b3d7927dad106b9614b4f

        SHA512

        93952946303dcfe11e7059ca543547c2e99c6bd0d17a950241a890d0e587a339ea991281648a2444f566de6c24b1ee1db158ca2a640fb0876d35f60a21b41dfd

      • memory/3220-130-0x0000000002220000-0x000000000222C000-memory.dmp

        Filesize

        48KB

      • memory/3220-131-0x0000000000400000-0x00000000004E5000-memory.dmp

        Filesize

        916KB

      • memory/3220-132-0x0000000002250000-0x0000000002261000-memory.dmp

        Filesize

        68KB