Resubmissions

15-02-2021 10:32

210215-rbd8jp8by2 10

15-02-2021 10:26

210215-1va7r5ahjn 10

Analysis

  • max time kernel
    1800s
  • max time network
    1800s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    15-02-2021 10:32

General

  • Target

    e0a124e431d01bf7b194ad5a2f8c0435471c0e1b062e165c3db211186a1ea901.exe

  • Size

    698KB

  • MD5

    f3e344b63fd98041b0551c0a329e85fb

  • SHA1

    ac086b6e0b21648088c8d098c68adfab38927e61

  • SHA256

    e0a124e431d01bf7b194ad5a2f8c0435471c0e1b062e165c3db211186a1ea901

  • SHA512

    7ead065043f00dee8654f10c358448c9521a2825036cf4c09fbc9f334c9d3815f1cbaae722757968d1347f394da58fbd8aa35ac87c221079cdf0a765af0dfc5a

Malware Config

Signatures

  • BetaBot

    Beta Bot is a Trojan that infects computers and disables Antivirus.

  • Modifies firewall policy service 2 TTPs 4 IoCs
  • Executes dropped EXE 2 IoCs
  • Sets file execution options in registry 2 TTPs
  • Checks BIOS information in registry 2 TTPs 1 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Deletes itself 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 9 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • NSIS installer 10 IoCs
  • Checks processor information in registry 2 TTPs 4 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies Internet Explorer Protected Mode 1 TTPs 4 IoCs
  • Modifies Internet Explorer Protected Mode Banner 1 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Runs ping.exe 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 29 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1260
      • C:\Users\Admin\AppData\Local\Temp\e0a124e431d01bf7b194ad5a2f8c0435471c0e1b062e165c3db211186a1ea901.exe
        "C:\Users\Admin\AppData\Local\Temp\e0a124e431d01bf7b194ad5a2f8c0435471c0e1b062e165c3db211186a1ea901.exe"
        2⤵
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1932
        • C:\Users\Admin\AppData\Local\Temp\AudioSes.exe
          "C:\Users\Admin\AppData\Local\Temp\AudioSes.exe"
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of WriteProcessMemory
          PID:1752
          • C:\Users\Admin\AppData\Local\Temp\AudioSes.exe
            "C:\Users\Admin\AppData\Local\Temp\AudioSes.exe"
            4⤵
            • Executes dropped EXE
            • Checks whether UAC is enabled
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            • Checks processor information in registry
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:1064
            • C:\Windows\SysWOW64\explorer.exe
              C:\Windows\SysWOW64\explorer.exe
              5⤵
              • Modifies firewall policy service
              • Checks BIOS information in registry
              • Adds Run key to start application
              • Suspicious use of NtSetInformationThreadHideFromDebugger
              • Checks processor information in registry
              • Enumerates system info in registry
              • Modifies Internet Explorer Protected Mode
              • Modifies Internet Explorer Protected Mode Banner
              • Modifies Internet Explorer settings
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious behavior: GetForegroundWindowSpam
              • Suspicious behavior: MapViewOfSection
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:372
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /C ping 1.1.1.1 -n 1 -w 100 > Nul & Del "C:\Users\Admin\AppData\Local\Temp\e0a124e431d01bf7b194ad5a2f8c0435471c0e1b062e165c3db211186a1ea901.exe"& ping 1.1.1.1 -n 1 -w 900 > Nul & Del "C:\Users\Admin\AppData\Local\Temp\e0a124e431d01bf7b194ad5a2f8c0435471c0e1b062e165c3db211186a1ea901.exe"
          3⤵
          • Deletes itself
          • Suspicious use of WriteProcessMemory
          PID:604
          • C:\Windows\SysWOW64\PING.EXE
            ping 1.1.1.1 -n 1 -w 100
            4⤵
            • Runs ping.exe
            PID:348
          • C:\Windows\SysWOW64\PING.EXE
            ping 1.1.1.1 -n 1 -w 900
            4⤵
            • Runs ping.exe
            PID:576
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1208

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Persistence

      Modify Existing Service

      1
      T1031

      Registry Run Keys / Startup Folder

      2
      T1060

      Defense Evasion

      Modify Registry

      6
      T1112

      Discovery

      Query Registry

      3
      T1012

      System Information Discovery

      5
      T1082

      Remote System Discovery

      1
      T1018

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\AudioSes.exe
        MD5

        043af181d5788fae0a7bc3faf74c287e

        SHA1

        f2a20f5ffd9d2a0cff50c9a030c88e3943a0c65f

        SHA256

        21e58ba4dddbb85983c87192bd76812f06bec3c48582fde844aaf7c16fcbb196

        SHA512

        99108600ca35f217f2cf118ffdf01f983cea903d3bca94d085dfd40e1a91f32eed66a4e8d2655678ee9580c91be2de78a8da4c321c2fae26a7705fcf0d57dda5

      • C:\Users\Admin\AppData\Local\Temp\AudioSes.exe
        MD5

        043af181d5788fae0a7bc3faf74c287e

        SHA1

        f2a20f5ffd9d2a0cff50c9a030c88e3943a0c65f

        SHA256

        21e58ba4dddbb85983c87192bd76812f06bec3c48582fde844aaf7c16fcbb196

        SHA512

        99108600ca35f217f2cf118ffdf01f983cea903d3bca94d085dfd40e1a91f32eed66a4e8d2655678ee9580c91be2de78a8da4c321c2fae26a7705fcf0d57dda5

      • C:\Users\Admin\AppData\Local\Temp\AudioSes.exe
        MD5

        043af181d5788fae0a7bc3faf74c287e

        SHA1

        f2a20f5ffd9d2a0cff50c9a030c88e3943a0c65f

        SHA256

        21e58ba4dddbb85983c87192bd76812f06bec3c48582fde844aaf7c16fcbb196

        SHA512

        99108600ca35f217f2cf118ffdf01f983cea903d3bca94d085dfd40e1a91f32eed66a4e8d2655678ee9580c91be2de78a8da4c321c2fae26a7705fcf0d57dda5

      • \Users\Admin\AppData\Local\Temp\AudioSes.exe
        MD5

        043af181d5788fae0a7bc3faf74c287e

        SHA1

        f2a20f5ffd9d2a0cff50c9a030c88e3943a0c65f

        SHA256

        21e58ba4dddbb85983c87192bd76812f06bec3c48582fde844aaf7c16fcbb196

        SHA512

        99108600ca35f217f2cf118ffdf01f983cea903d3bca94d085dfd40e1a91f32eed66a4e8d2655678ee9580c91be2de78a8da4c321c2fae26a7705fcf0d57dda5

      • \Users\Admin\AppData\Local\Temp\AudioSes.exe
        MD5

        043af181d5788fae0a7bc3faf74c287e

        SHA1

        f2a20f5ffd9d2a0cff50c9a030c88e3943a0c65f

        SHA256

        21e58ba4dddbb85983c87192bd76812f06bec3c48582fde844aaf7c16fcbb196

        SHA512

        99108600ca35f217f2cf118ffdf01f983cea903d3bca94d085dfd40e1a91f32eed66a4e8d2655678ee9580c91be2de78a8da4c321c2fae26a7705fcf0d57dda5

      • \Users\Admin\AppData\Local\Temp\nsxD5B.tmp\System.dll
        MD5

        3f176d1ee13b0d7d6bd92e1c7a0b9bae

        SHA1

        fe582246792774c2c9dd15639ffa0aca90d6fd0b

        SHA256

        fa4ab1d6f79fd677433a31ada7806373a789d34328da46ccb0449bbf347bd73e

        SHA512

        0a69124819b7568d0dea4e9e85ce8fe61c7ba697c934e3a95e2dcfb9f252b1d9da7faf8774b6e8efd614885507acc94987733eba09a2f5e7098b774dfc8524b6

      • memory/348-24-0x0000000000000000-mapping.dmp
      • memory/372-37-0x0000000000000000-mapping.dmp
      • memory/372-39-0x00000000742D1000-0x00000000742D3000-memory.dmp
        Filesize

        8KB

      • memory/372-40-0x0000000076EA0000-0x0000000077021000-memory.dmp
        Filesize

        1.5MB

      • memory/372-41-0x0000000000520000-0x00000000005F6000-memory.dmp
        Filesize

        856KB

      • memory/372-45-0x0000000000250000-0x000000000025C000-memory.dmp
        Filesize

        48KB

      • memory/372-48-0x0000000000600000-0x0000000000602000-memory.dmp
        Filesize

        8KB

      • memory/576-25-0x0000000000000000-mapping.dmp
      • memory/604-23-0x0000000000000000-mapping.dmp
      • memory/1064-35-0x00000000003D0000-0x00000000003D1000-memory.dmp
        Filesize

        4KB

      • memory/1064-36-0x0000000000610000-0x000000000061C000-memory.dmp
        Filesize

        48KB

      • memory/1064-46-0x00000000003F0000-0x00000000003F1000-memory.dmp
        Filesize

        4KB

      • memory/1064-32-0x00000000002B0000-0x0000000000316000-memory.dmp
        Filesize

        408KB

      • memory/1064-34-0x0000000000250000-0x000000000025D000-memory.dmp
        Filesize

        52KB

      • memory/1064-33-0x0000000000240000-0x0000000000241000-memory.dmp
        Filesize

        4KB

      • memory/1064-28-0x00000000004015C6-mapping.dmp
      • memory/1064-31-0x0000000000400000-0x0000000000435000-memory.dmp
        Filesize

        212KB

      • memory/1260-49-0x00000000036D0000-0x00000000036D6000-memory.dmp
        Filesize

        24KB

      • memory/1752-18-0x0000000000000000-mapping.dmp
      • memory/1752-26-0x00000000004A0000-0x00000000004D7000-memory.dmp
        Filesize

        220KB

      • memory/1752-20-0x00000000750C1000-0x00000000750C3000-memory.dmp
        Filesize

        8KB

      • memory/1932-14-0x0000000004994000-0x0000000004996000-memory.dmp
        Filesize

        8KB

      • memory/1932-16-0x000000000499A000-0x00000000049AB000-memory.dmp
        Filesize

        68KB

      • memory/1932-12-0x0000000004992000-0x0000000004993000-memory.dmp
        Filesize

        4KB

      • memory/1932-13-0x0000000004993000-0x0000000004994000-memory.dmp
        Filesize

        4KB

      • memory/1932-11-0x00000000020A0000-0x000000000212B000-memory.dmp
        Filesize

        556KB

      • memory/1932-5-0x00000000047F0000-0x000000000487D000-memory.dmp
        Filesize

        564KB

      • memory/1932-2-0x0000000001FE0000-0x0000000001FF1000-memory.dmp
        Filesize

        68KB

      • memory/1932-4-0x0000000004991000-0x0000000004992000-memory.dmp
        Filesize

        4KB

      • memory/1932-3-0x0000000073D80000-0x000000007446E000-memory.dmp
        Filesize

        6.9MB

      • memory/1932-15-0x0000000002030000-0x0000000002031000-memory.dmp
        Filesize

        4KB