Analysis

  • max time kernel
    149s
  • max time network
    158s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    14-09-2023 19:14

General

  • Target

    docbit20230908.exe

  • Size

    400.0MB

  • MD5

    81e0872e2be9487534ddd879b05e6f62

  • SHA1

    f97c783cb79036a9f2ff27e70a182f1b6919da18

  • SHA256

    d54df888565db74fd2065bfa327e5b5d2476df10564a25f2b99f3bf7f9504ab0

  • SHA512

    40bfff8cb99869510332a8f2c4f62a354de1ed0aa02fcef522c38deecac90c5429a19ee31c1d3eac6bf10f3e7e9cd3439891c949f5d2763bf2463d7bcdab6f90

  • SSDEEP

    98304:XZ7MAV7nUqgfiWsNkFi589X/JiQGTfZ5MULBhT8i4wv7:XZ7tVDUq6iPkFiedRiQePLBpUw

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

homesafe1000.duckdns.org:1234

Attributes
  • communication_password

    81dc9bdb52d04dc20036dbd8313ed055

  • tor_process

    tor

Signatures

  • BitRAT

    BitRAT is a remote access tool written in C++ and uses leaked source code from other families.

  • XenArmor Suite

    XenArmor is as suite of password recovery tools for various application.

  • ACProtect 1.3x - 1.4x DLL software 2 IoCs

    Detects file using ACProtect software.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads local data of messenger clients 2 TTPs

    Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Drops file in Windows directory 26 IoCs
  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\docbit20230908.exe
    "C:\Users\Admin\AppData\Local\Temp\docbit20230908.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:388
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of SetThreadContext
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2756
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        -a "C:\Users\Admin\AppData\Local\ed01f8a1\plg\TNvfYPJf.json"
        3⤵
        • Suspicious use of SetThreadContext
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:1592
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          -a "C:\Users\Admin\AppData\Local\Temp\unk.xml"
          4⤵
          • Loads dropped DLL
          • Accesses Microsoft Outlook accounts
          • Drops file in Windows directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1980
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\svchost"
      2⤵
        PID:2840
      • C:\Windows\SysWOW64\cmd.exe
        "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\docbit20230908.exe" "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"
        2⤵
          PID:2668
        • C:\Windows\SysWOW64\cmd.exe
          "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2104
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
            3⤵
            • Creates scheduled task(s)
            PID:2680
      • C:\Windows\system32\taskeng.exe
        taskeng.exe {C83DD212-71F5-4B5E-9D6E-75E074635B8A} S-1-5-21-3513876443-2771975297-1923446376-1000:GPFFWLPI\Admin:Interactive:[1]
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:1088
        • C:\Users\Admin\AppData\Roaming\svchost\svchost.exe
          C:\Users\Admin\AppData\Roaming\svchost\svchost.exe
          2⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of WriteProcessMemory
          PID:916
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            3⤵
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            • Suspicious use of AdjustPrivilegeToken
            PID:1772
          • C:\Windows\SysWOW64\cmd.exe
            "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\svchost"
            3⤵
              PID:1912
            • C:\Windows\SysWOW64\cmd.exe
              "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
              3⤵
                PID:1496
                • C:\Windows\SysWOW64\schtasks.exe
                  schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
                  4⤵
                  • Creates scheduled task(s)
                  PID:2824
              • C:\Windows\SysWOW64\cmd.exe
                "cmd" /c copy "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe" "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"
                3⤵
                  PID:1920
              • C:\Users\Admin\AppData\Roaming\svchost\svchost.exe
                C:\Users\Admin\AppData\Roaming\svchost\svchost.exe
                2⤵
                • Executes dropped EXE
                PID:536

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • C:\Users\Admin\AppData\Local\Temp\unk.xml

              Filesize

              98B

              MD5

              67efe59fbf8aaf3e8de7d67dab21c2a7

              SHA1

              0869d3ea3b16639ed4a0803acea1c476e199b16c

              SHA256

              63ca5c5c3cf4be4765115926225c060d89ef54d6f6fc3ec284cb3ecb398b0cb1

              SHA512

              75f162ff2cc23dd7df018109264f157727fdecc869e3f493e4d0bed26b4429ab00fc9724a5ea420488ba1b4b102a07992357c0d3567c7acea6dd5333cd8cebbb

            • C:\Users\Admin\AppData\Local\ed01f8a1\plg\TNvfYPJf.json

              Filesize

              98B

              MD5

              67efe59fbf8aaf3e8de7d67dab21c2a7

              SHA1

              0869d3ea3b16639ed4a0803acea1c476e199b16c

              SHA256

              63ca5c5c3cf4be4765115926225c060d89ef54d6f6fc3ec284cb3ecb398b0cb1

              SHA512

              75f162ff2cc23dd7df018109264f157727fdecc869e3f493e4d0bed26b4429ab00fc9724a5ea420488ba1b4b102a07992357c0d3567c7acea6dd5333cd8cebbb

            • C:\Users\Admin\AppData\Roaming\svchost\svchost.exe

              Filesize

              400.0MB

              MD5

              81e0872e2be9487534ddd879b05e6f62

              SHA1

              f97c783cb79036a9f2ff27e70a182f1b6919da18

              SHA256

              d54df888565db74fd2065bfa327e5b5d2476df10564a25f2b99f3bf7f9504ab0

              SHA512

              40bfff8cb99869510332a8f2c4f62a354de1ed0aa02fcef522c38deecac90c5429a19ee31c1d3eac6bf10f3e7e9cd3439891c949f5d2763bf2463d7bcdab6f90

            • C:\Users\Admin\AppData\Roaming\svchost\svchost.exe

              Filesize

              400.0MB

              MD5

              81e0872e2be9487534ddd879b05e6f62

              SHA1

              f97c783cb79036a9f2ff27e70a182f1b6919da18

              SHA256

              d54df888565db74fd2065bfa327e5b5d2476df10564a25f2b99f3bf7f9504ab0

              SHA512

              40bfff8cb99869510332a8f2c4f62a354de1ed0aa02fcef522c38deecac90c5429a19ee31c1d3eac6bf10f3e7e9cd3439891c949f5d2763bf2463d7bcdab6f90

            • C:\Users\Admin\AppData\Roaming\svchost\svchost.exe

              Filesize

              30.0MB

              MD5

              0d93dcc547eab04c3e29636e6d14b8b6

              SHA1

              c435ead1255a38b7188b321bce5d03c60cfe22da

              SHA256

              189da8b47feaa3c76abd282627007c34accd5e9dd98375fbc0b1e4b4a3400c66

              SHA512

              c8043eb4b958f1928bb186e3125997a71b5f83f878b7b07253581cda5b5a80018c87d3470f27150f8950ab92e18e521d999e1abd9ed7f671b78cc1391f677534

            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\License.XenArmor

              Filesize

              104B

              MD5

              4f3bde9212e17ef18226866d6ac739b6

              SHA1

              732733bec8314beb81437e60876ffa75e72ae6cd

              SHA256

              212173a405c78d70f90e8ec0699a60ed2f4a9f3a8070de62eabd666c268fb174

              SHA512

              10b7cdae0b9a7b0f8e1bfc66a60675fa9b25c523864d5ae3da243f4e6e4c5194f3bd92af57ac956157442f66414bdd3393d0a1e5ba4ef0f192561e8524d4e744

            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\License.XenArmor

              Filesize

              104B

              MD5

              bf5da170f7c9a8eae88d1cb1a191ff80

              SHA1

              dd1b991a1b03587a5d1edc94e919a2070e325610

              SHA256

              e5d5110feb21939d82d962981aeaaafc4643b40a9b87cbed800ace82135d57cd

              SHA512

              9e32247d8556fd6efffbf7b6b9c325652d8c4b223b0fa38020879171476a49ab1f64d8897b5d8d92b79c5484fd9d5899be26ca5f664ee1f9c2acb0857084121e

            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\Unknown.dll

              Filesize

              793KB

              MD5

              86114faba7e1ec4a667d2bcb2e23f024

              SHA1

              670df6e1ba1dc6bece046e8b2e573dd36748245e

              SHA256

              568da887725ccfdc4c5aae3ff66792fe60eca4e0818338f6a8434be66a6fe46d

              SHA512

              d26ee0da6ccd4022982cf848c46e40f6781b667e39d0c5daf5ea8d74c44e55c55a5f7590a4d2a60aa1911358ca783c4276a9b4e6311c4cea20df1ebd4f7f457f

            • \Windows\Microsoft.NET\Framework\v4.0.30319\Unknown.dll

              Filesize

              793KB

              MD5

              86114faba7e1ec4a667d2bcb2e23f024

              SHA1

              670df6e1ba1dc6bece046e8b2e573dd36748245e

              SHA256

              568da887725ccfdc4c5aae3ff66792fe60eca4e0818338f6a8434be66a6fe46d

              SHA512

              d26ee0da6ccd4022982cf848c46e40f6781b667e39d0c5daf5ea8d74c44e55c55a5f7590a4d2a60aa1911358ca783c4276a9b4e6311c4cea20df1ebd4f7f457f

            • memory/388-26-0x0000000074100000-0x00000000747EE000-memory.dmp

              Filesize

              6.9MB

            • memory/388-5-0x0000000005490000-0x0000000005858000-memory.dmp

              Filesize

              3.8MB

            • memory/388-4-0x0000000004EA0000-0x0000000004EE0000-memory.dmp

              Filesize

              256KB

            • memory/388-3-0x0000000074100000-0x00000000747EE000-memory.dmp

              Filesize

              6.9MB

            • memory/388-2-0x0000000004EA0000-0x0000000004EE0000-memory.dmp

              Filesize

              256KB

            • memory/388-0-0x0000000000A20000-0x0000000000E22000-memory.dmp

              Filesize

              4.0MB

            • memory/388-1-0x0000000074100000-0x00000000747EE000-memory.dmp

              Filesize

              6.9MB

            • memory/536-259-0x0000000072A30000-0x000000007311E000-memory.dmp

              Filesize

              6.9MB

            • memory/536-261-0x0000000000D50000-0x0000000000D90000-memory.dmp

              Filesize

              256KB

            • memory/536-260-0x0000000000FC0000-0x00000000013C2000-memory.dmp

              Filesize

              4.0MB

            • memory/916-190-0x00000000009D0000-0x0000000000DD2000-memory.dmp

              Filesize

              4.0MB

            • memory/916-189-0x0000000073120000-0x000000007380E000-memory.dmp

              Filesize

              6.9MB

            • memory/916-200-0x0000000073120000-0x000000007380E000-memory.dmp

              Filesize

              6.9MB

            • memory/916-203-0x0000000004A20000-0x0000000004A60000-memory.dmp

              Filesize

              256KB

            • memory/916-242-0x0000000073120000-0x000000007380E000-memory.dmp

              Filesize

              6.9MB

            • memory/916-191-0x0000000004A20000-0x0000000004A60000-memory.dmp

              Filesize

              256KB

            • memory/1592-103-0x0000000000400000-0x00000000008DC000-memory.dmp

              Filesize

              4.9MB

            • memory/1592-184-0x0000000000400000-0x00000000008DC000-memory.dmp

              Filesize

              4.9MB

            • memory/1772-255-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/1772-250-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/1980-159-0x0000000000400000-0x00000000006FE000-memory.dmp

              Filesize

              3.0MB

            • memory/1980-146-0x0000000010000000-0x0000000010227000-memory.dmp

              Filesize

              2.2MB

            • memory/1980-160-0x0000000010000000-0x0000000010227000-memory.dmp

              Filesize

              2.2MB

            • memory/1980-142-0x0000000000400000-0x00000000006FE000-memory.dmp

              Filesize

              3.0MB

            • memory/2756-31-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-49-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-53-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-54-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-55-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-57-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-58-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-60-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-62-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-61-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-64-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-66-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-67-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-69-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-70-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-71-0x0000000000360000-0x000000000036A000-memory.dmp

              Filesize

              40KB

            • memory/2756-72-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-73-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-74-0x0000000000360000-0x000000000036A000-memory.dmp

              Filesize

              40KB

            • memory/2756-75-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-76-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-51-0x0000000000360000-0x000000000036A000-memory.dmp

              Filesize

              40KB

            • memory/2756-50-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-52-0x0000000000360000-0x000000000036A000-memory.dmp

              Filesize

              40KB

            • memory/2756-48-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-45-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-46-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-44-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-43-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-42-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-39-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-37-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-35-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-33-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-29-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-27-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-24-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-22-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-20-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

              Filesize

              4KB

            • memory/2756-16-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-14-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-12-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-10-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-8-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-7-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB

            • memory/2756-6-0x0000000000400000-0x00000000007CE000-memory.dmp

              Filesize

              3.8MB