Analysis

  • max time kernel
    144s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    24-05-2022 22:54

General

  • Target

    4d7c734849cf9964df97eff81f74165c819f785d9bb0e797261e7739913b08cd.exe

  • Size

    908KB

  • MD5

    4e1a0b71686a80234773940b91f205b5

  • SHA1

    8d072451c55371162c6d6ff7c6fa1fd54ec48098

  • SHA256

    4d7c734849cf9964df97eff81f74165c819f785d9bb0e797261e7739913b08cd

  • SHA512

    158b4ae197c7c408355b6198a06892fd8ca94ffc1eca3de00d2da896d56aa3041294f33be0c2ac9b643097eb7b9af74d61ac0c926727e68b378ab9477e1cdb64

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 61 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4d7c734849cf9964df97eff81f74165c819f785d9bb0e797261e7739913b08cd.exe
    "C:\Users\Admin\AppData\Local\Temp\4d7c734849cf9964df97eff81f74165c819f785d9bb0e797261e7739913b08cd.exe"
    1⤵
      PID:112
    • 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:1536
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1536 CREDAT:275457 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:992
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1536 CREDAT:996356 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:688
    • 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:1588
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1588 CREDAT:275457 /prefetch:2
        2⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:572

    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

      ea7fbf5069abc1ae21d30b8093df1b82

      SHA1

      1a88b90197f9374366e0de69fa815a605bf92d78

      SHA256

      94c189f45ac12eff0670a154d9f834401bc058d88e72d2d32127c44aede7bc7a

      SHA512

      ce8266f06c3d9dbe2c0a8cb9f1140120405c5366e6d6647d29c6e86af563299b43d9e4311a86416278c22cdb07c0d33e51f7b82d4bbc1619a7d1821f454df2a1

    • memory/112-54-0x0000000076191000-0x0000000076193000-memory.dmp

      Filesize

      8KB

    • memory/112-55-0x0000000000220000-0x000000000022C000-memory.dmp

      Filesize

      48KB

    • memory/112-56-0x0000000000400000-0x00000000004E5000-memory.dmp

      Filesize

      916KB

    • memory/112-57-0x00000000002D0000-0x00000000002E1000-memory.dmp

      Filesize

      68KB