Analysis

  • max time kernel
    150s
  • max time network
    160s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    14/09/2023, 19:21

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 3 IoCs

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

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
  • Suspicious use of SetThreadContext 5 IoCs
  • Drops file in Windows directory 26 IoCs
  • Creates scheduled task(s) 1 TTPs 3 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 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:2604
    • 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:2692
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        -a "C:\Users\Admin\AppData\Local\ed01f8a1\plg\OWaKPgDg.json"
        3⤵
        • Suspicious use of SetThreadContext
        • Drops file in Windows directory
        PID:1724
        • 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:768
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\svchost"
      2⤵
        PID:2684
      • 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:2144
        • 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:2880
      • 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:2424
      • C:\Windows\system32\taskeng.exe
        taskeng.exe {20599A6A-7DF5-4618-BA0E-D80B634F858B} S-1-5-21-686452656-3203474025-4140627569-1000:UUVOHKNL\Admin:Interactive:[1]
        1⤵
        • Suspicious use of WriteProcessMemory
        PID:1284
        • 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:1388
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            3⤵
              PID:2680
            • C:\Windows\SysWOW64\cmd.exe
              "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\svchost"
              3⤵
                PID:3004
              • 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:2216
                • 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:2084
                    • 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:1132
                • C:\Users\Admin\AppData\Roaming\svchost\svchost.exe
                  C:\Users\Admin\AppData\Roaming\svchost\svchost.exe
                  2⤵
                  • Executes dropped EXE
                  • Suspicious use of SetThreadContext
                  PID:2024
                  • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                    3⤵
                      PID:2588
                    • C:\Windows\SysWOW64\cmd.exe
                      "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\svchost"
                      3⤵
                        PID:872
                      • 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:2892
                          • 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:560
                        • 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:2400

                      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\OWaKPgDg.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

                        400.0MB

                        MD5

                        81e0872e2be9487534ddd879b05e6f62

                        SHA1

                        f97c783cb79036a9f2ff27e70a182f1b6919da18

                        SHA256

                        d54df888565db74fd2065bfa327e5b5d2476df10564a25f2b99f3bf7f9504ab0

                        SHA512

                        40bfff8cb99869510332a8f2c4f62a354de1ed0aa02fcef522c38deecac90c5429a19ee31c1d3eac6bf10f3e7e9cd3439891c949f5d2763bf2463d7bcdab6f90

                      • 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/768-202-0x0000000000400000-0x00000000006FE000-memory.dmp

                        Filesize

                        3.0MB

                      • memory/768-183-0x0000000010000000-0x0000000010227000-memory.dmp

                        Filesize

                        2.2MB

                      • memory/768-177-0x0000000000400000-0x00000000006FE000-memory.dmp

                        Filesize

                        3.0MB

                      • memory/768-203-0x0000000010000000-0x0000000010227000-memory.dmp

                        Filesize

                        2.2MB

                      • memory/1388-140-0x0000000073A90000-0x000000007417E000-memory.dmp

                        Filesize

                        6.9MB

                      • memory/1388-81-0x0000000004FA0000-0x0000000004FE0000-memory.dmp

                        Filesize

                        256KB

                      • memory/1388-77-0x0000000073A90000-0x000000007417E000-memory.dmp

                        Filesize

                        6.9MB

                      • memory/1388-58-0x0000000004FA0000-0x0000000004FE0000-memory.dmp

                        Filesize

                        256KB

                      • memory/1388-57-0x0000000073A90000-0x000000007417E000-memory.dmp

                        Filesize

                        6.9MB

                      • memory/1388-56-0x00000000009F0000-0x0000000000DF2000-memory.dmp

                        Filesize

                        4.0MB

                      • memory/1724-134-0x0000000000400000-0x00000000008DC000-memory.dmp

                        Filesize

                        4.9MB

                      • memory/1724-201-0x0000000000400000-0x00000000008DC000-memory.dmp

                        Filesize

                        4.9MB

                      • memory/1724-227-0x0000000000400000-0x00000000008DC000-memory.dmp

                        Filesize

                        4.9MB

                      • memory/2024-265-0x00000000733A0000-0x0000000073A8E000-memory.dmp

                        Filesize

                        6.9MB

                      • memory/2024-238-0x00000000733A0000-0x0000000073A8E000-memory.dmp

                        Filesize

                        6.9MB

                      • memory/2024-239-0x0000000004B20000-0x0000000004B60000-memory.dmp

                        Filesize

                        256KB

                      • memory/2024-187-0x00000000009F0000-0x0000000000DF2000-memory.dmp

                        Filesize

                        4.0MB

                      • memory/2024-190-0x0000000004B20000-0x0000000004B60000-memory.dmp

                        Filesize

                        256KB

                      • memory/2024-189-0x00000000733A0000-0x0000000073A8E000-memory.dmp

                        Filesize

                        6.9MB

                      • memory/2604-2-0x0000000004BC0000-0x0000000004C00000-memory.dmp

                        Filesize

                        256KB

                      • memory/2604-4-0x0000000004BC0000-0x0000000004C00000-memory.dmp

                        Filesize

                        256KB

                      • memory/2604-5-0x0000000005480000-0x0000000005848000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2604-3-0x0000000074D90000-0x000000007547E000-memory.dmp

                        Filesize

                        6.9MB

                      • memory/2604-21-0x0000000074D90000-0x000000007547E000-memory.dmp

                        Filesize

                        6.9MB

                      • memory/2604-0-0x0000000074D90000-0x000000007547E000-memory.dmp

                        Filesize

                        6.9MB

                      • memory/2604-1-0x00000000000D0000-0x00000000004D2000-memory.dmp

                        Filesize

                        4.0MB

                      • memory/2692-74-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-83-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-53-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-29-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-25-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-23-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-51-0x00000000002A0000-0x00000000002AA000-memory.dmp

                        Filesize

                        40KB

                      • memory/2692-20-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-59-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-62-0x00000000002A0000-0x00000000002AA000-memory.dmp

                        Filesize

                        40KB

                      • memory/2692-61-0x00000000002A0000-0x00000000002AA000-memory.dmp

                        Filesize

                        40KB

                      • memory/2692-65-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-66-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-69-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-70-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-31-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-76-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-18-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-78-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-79-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-80-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-14-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-82-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-52-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-84-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-50-0x00000000002A0000-0x00000000002AA000-memory.dmp

                        Filesize

                        40KB

                      • memory/2692-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

                        Filesize

                        4KB

                      • memory/2692-15-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-13-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-12-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-10-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-8-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-49-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-6-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-48-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-47-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-44-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-45-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-43-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-42-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-41-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-40-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-39-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-37-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-35-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB

                      • memory/2692-33-0x0000000000400000-0x00000000007CE000-memory.dmp

                        Filesize

                        3.8MB