Analysis

  • max time kernel
    146s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    10-11-2020 11:49

General

  • Target

    d0136345e5d9b60ead6b8eabdd9887f43f96a27bfc2c1812737da9858e32d6ba.exe

  • Size

    365KB

  • MD5

    7012fcbeda3bebbceef18eba8e2a78db

  • SHA1

    64bf265931d406c6c1632c5a6a16cbf335b1202e

  • SHA256

    d0136345e5d9b60ead6b8eabdd9887f43f96a27bfc2c1812737da9858e32d6ba

  • SHA512

    9761ab641cc625e804922522c6b89d95f1dee7325f634d39f6f8eb71cd45af8b75f24152759ee59977cf026fa696d85d77161cd3db246915b2240e31c1f69a6b

Malware Config

Extracted

Family

ursnif

Attributes
  • dga_base_url

  • dga_crc

    0

  • dga_season

    0

  • dga_tlds

  • dns_servers

Signatures

  • Gozi, Gozi IFSB

    Gozi ISFB is a well-known and widely distributed banking trojan.

  • Ursnif, Dreambot

    Ursnif is a variant of the Gozi IFSB with more capabilities.

  • Executes dropped EXE 1 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1268
    • C:\Users\Admin\AppData\Local\Temp\d0136345e5d9b60ead6b8eabdd9887f43f96a27bfc2c1812737da9858e32d6ba.exe
      "C:\Users\Admin\AppData\Local\Temp\d0136345e5d9b60ead6b8eabdd9887f43f96a27bfc2c1812737da9858e32d6ba.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:1744
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\1DDE\EEF.bat" "C:\Users\Admin\AppData\Roaming\Devidisc\bcryider.exe" "C:\Users\Admin\AppData\Local\Temp\D01363~1.EXE""
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1796
        • C:\Windows\SysWOW64\cmd.exe
          cmd /C ""C:\Users\Admin\AppData\Roaming\Devidisc\bcryider.exe" "C:\Users\Admin\AppData\Local\Temp\D01363~1.EXE""
          4⤵
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:344
          • C:\Users\Admin\AppData\Roaming\Devidisc\bcryider.exe
            "C:\Users\Admin\AppData\Roaming\Devidisc\bcryider.exe" "C:\Users\Admin\AppData\Local\Temp\D01363~1.EXE"
            5⤵
            • Executes dropped EXE
            • Deletes itself
            • Suspicious use of SetThreadContext
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of WriteProcessMemory
            PID:1692
            • C:\Windows\system32\svchost.exe
              C:\Windows\system32\svchost.exe
              6⤵
              • Suspicious use of SetThreadContext
              • Suspicious behavior: MapViewOfSection
              • Suspicious use of WriteProcessMemory
              PID:1660
    • C:\Windows\system32\cmd.exe
      cmd /C "nslookup myip.opendns.com resolver1.opendns.com > C:\Users\Admin\AppData\Local\Temp\B934.bi1"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1720
      • C:\Windows\system32\nslookup.exe
        nslookup myip.opendns.com resolver1.opendns.com
        3⤵
          PID:988
      • C:\Windows\system32\cmd.exe
        cmd /C "echo -------- >> C:\Users\Admin\AppData\Local\Temp\B934.bi1"
        2⤵
          PID:1708

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\1DDE\EEF.bat

        MD5

        6b755eae8af19c5c6c577380117cc321

        SHA1

        c274fed0510070d970896aad9ea70ae50deea61f

        SHA256

        c5949aa1c4ae0448e60bdb48f18008a196ed445af9f6a57cd6889a4b0a01d9de

        SHA512

        c8c9d5497d8b452b55182e80b12f236ab5dd4f12276d8f9af9eccb1bc46eae8fac8e1239c11c68b814f44aefd712d83bc1f95b2d7b1d51b7853236bf3942b0c2

      • C:\Users\Admin\AppData\Local\Temp\B934.bi1

        MD5

        c4f77466fa6bb3b7b587745fd51eb73e

        SHA1

        c9ee49b895e2cec4483b9e3d84e32f0d650edcbb

        SHA256

        37d5f9a9a4db772e5bcc6a0211a3092049c09f438067bc36cde152e10b79eeb8

        SHA512

        51c1ddeac48567d106cbcc5bad19b31639b73ec66d11ed83dbc90da880792df0b6bd6c6e28a712e854ceeb6bd96a3985e521cb9d666b0ccd087e96f4a90fc7d7

      • C:\Users\Admin\AppData\Local\Temp\B934.bi1

        MD5

        c4f77466fa6bb3b7b587745fd51eb73e

        SHA1

        c9ee49b895e2cec4483b9e3d84e32f0d650edcbb

        SHA256

        37d5f9a9a4db772e5bcc6a0211a3092049c09f438067bc36cde152e10b79eeb8

        SHA512

        51c1ddeac48567d106cbcc5bad19b31639b73ec66d11ed83dbc90da880792df0b6bd6c6e28a712e854ceeb6bd96a3985e521cb9d666b0ccd087e96f4a90fc7d7

      • C:\Users\Admin\AppData\Roaming\Devidisc\bcryider.exe

        MD5

        7012fcbeda3bebbceef18eba8e2a78db

        SHA1

        64bf265931d406c6c1632c5a6a16cbf335b1202e

        SHA256

        d0136345e5d9b60ead6b8eabdd9887f43f96a27bfc2c1812737da9858e32d6ba

        SHA512

        9761ab641cc625e804922522c6b89d95f1dee7325f634d39f6f8eb71cd45af8b75f24152759ee59977cf026fa696d85d77161cd3db246915b2240e31c1f69a6b

      • C:\Users\Admin\AppData\Roaming\Devidisc\bcryider.exe

        MD5

        7012fcbeda3bebbceef18eba8e2a78db

        SHA1

        64bf265931d406c6c1632c5a6a16cbf335b1202e

        SHA256

        d0136345e5d9b60ead6b8eabdd9887f43f96a27bfc2c1812737da9858e32d6ba

        SHA512

        9761ab641cc625e804922522c6b89d95f1dee7325f634d39f6f8eb71cd45af8b75f24152759ee59977cf026fa696d85d77161cd3db246915b2240e31c1f69a6b

      • \Users\Admin\AppData\Roaming\Devidisc\bcryider.exe

        MD5

        7012fcbeda3bebbceef18eba8e2a78db

        SHA1

        64bf265931d406c6c1632c5a6a16cbf335b1202e

        SHA256

        d0136345e5d9b60ead6b8eabdd9887f43f96a27bfc2c1812737da9858e32d6ba

        SHA512

        9761ab641cc625e804922522c6b89d95f1dee7325f634d39f6f8eb71cd45af8b75f24152759ee59977cf026fa696d85d77161cd3db246915b2240e31c1f69a6b

      • memory/344-2-0x0000000000000000-mapping.dmp

      • memory/988-14-0x0000000000000000-mapping.dmp

      • memory/1660-7-0x0000000000000000-mapping.dmp

      • memory/1660-9-0x000007FFFFFDB000-mapping.dmp

      • memory/1660-10-0x0000000000470000-0x00000000004A5000-memory.dmp

        Filesize

        212KB

      • memory/1660-11-0x0000000002030000-0x00000000020BF000-memory.dmp

        Filesize

        572KB

      • memory/1692-8-0x0000000001F10000-0x0000000001F9F000-memory.dmp

        Filesize

        572KB

      • memory/1692-5-0x0000000000000000-mapping.dmp

      • memory/1708-15-0x0000000000000000-mapping.dmp

      • memory/1720-13-0x0000000000000000-mapping.dmp

      • memory/1796-0-0x0000000000000000-mapping.dmp

      • memory/1816-12-0x000007FEF63D0000-0x000007FEF664A000-memory.dmp

        Filesize

        2.5MB