Analysis

  • max time kernel
    147s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    24-09-2022 16:00

General

  • Target

    20_89_27.exe

  • Size

    9.4MB

  • MD5

    0894f84db87ca8148cd35781341489a2

  • SHA1

    de5b88287a6454115d06de0d555e94820c3791c8

  • SHA256

    c06cab989e964346467e4190f382ebc1777ef20786ac7f190ae080b8422f2d88

  • SHA512

    00579a26b5640deae733df142f3e86a4b62c9a52828256d7ce165ad8ac7ffb2233a8e1f9a96268e3391e0ebcabb136e62633660881b8dbafc410b7531731566c

  • SSDEEP

    49152:aJJKPuu28T4Vlp50dmHwWrwIdECy8AmY+VG9hk:1uu2r950873yr

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

bit9090.duckdns.org:9090

Attributes
  • communication_password

    e10adc3949ba59abbe56e057f20f883e

  • tor_process

    tor

Extracted

Family

njrat

Version

v2.0

Botnet

May4000

C2

dan4000.duckdns.org:4000

Mutex

Windows

Attributes
  • reg_key

    Windows

  • splitter

    |-F-|

Signatures

  • BitRAT

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

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 3 IoCs
  • UPX packed file 16 IoCs

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

  • Drops startup file 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 7 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 3 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 21 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\20_89_27.exe
    "C:\Users\Admin\AppData\Local\Temp\20_89_27.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1048
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Roaming\HJGGJHG.exe'" /f
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1508
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Roaming\HJGGJHG.exe'" /f
        3⤵
        • Creates scheduled task(s)
        PID:1356
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\20_89_27.exe" "C:\Users\Admin\AppData\Roaming\HJGGJHG.exe"
      2⤵
        PID:1424
      • 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 AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:1316
      • C:\Users\Admin\AppData\Local\Temp\dan4000new.exe
        "C:\Users\Admin\AppData\Local\Temp\dan4000new.exe"
        2⤵
        • Executes dropped EXE
        • Drops startup file
        • Suspicious use of AdjustPrivilegeToken
        PID:772
    • C:\Windows\system32\taskeng.exe
      taskeng.exe {0039E18C-9650-4305-9FA2-D1BB38F144D9} S-1-5-21-2292972927-2705560509-2768824231-1000:GRXNNIIE\Admin:Interactive:[1]
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:1604
      • C:\Users\Admin\AppData\Roaming\HJGGJHG.exe
        C:\Users\Admin\AppData\Roaming\HJGGJHG.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1208
        • C:\Windows\SysWOW64\cmd.exe
          "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Roaming\HJGGJHG.exe'" /f
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1568
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Roaming\HJGGJHG.exe'" /f
            4⤵
            • Creates scheduled task(s)
            PID:980
        • C:\Windows\SysWOW64\cmd.exe
          "cmd" /c copy "C:\Users\Admin\AppData\Roaming\HJGGJHG.exe" "C:\Users\Admin\AppData\Roaming\HJGGJHG.exe"
          3⤵
            PID:924
          • 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:2004
        • C:\Users\Admin\AppData\Roaming\HJGGJHG.exe
          C:\Users\Admin\AppData\Roaming\HJGGJHG.exe
          2⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of WriteProcessMemory
          PID:1424
          • C:\Windows\SysWOW64\cmd.exe
            "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Roaming\HJGGJHG.exe'" /f
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:1284
            • C:\Windows\SysWOW64\schtasks.exe
              schtasks /create /sc minute /mo 1 /tn "Nafdfnasia" /tr "'C:\Users\Admin\AppData\Roaming\HJGGJHG.exe'" /f
              4⤵
              • Creates scheduled task(s)
              PID:368
          • C:\Windows\SysWOW64\cmd.exe
            "cmd" /c copy "C:\Users\Admin\AppData\Roaming\HJGGJHG.exe" "C:\Users\Admin\AppData\Roaming\HJGGJHG.exe"
            3⤵
              PID:1540
            • 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:2000

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\dan4000new.exe

          Filesize

          27KB

          MD5

          3a523f042269c18d7ee4ab65970c765b

          SHA1

          3dc6182faa831f570beb8445f20f76e2e1f27827

          SHA256

          c7dcb35fe7258ccbebe3b42065a24813c0a012a26fdd3990627114687ca3d3b3

          SHA512

          08f1af47db96836452624f032cd59d7b435ef86a7ca45284a3948a23a37401df6a96cdc599a805098a35c7f8c5719a077d180c778d82127521b9f31f02ed9add

        • C:\Users\Admin\AppData\Local\Temp\dan4000new.exe

          Filesize

          27KB

          MD5

          3a523f042269c18d7ee4ab65970c765b

          SHA1

          3dc6182faa831f570beb8445f20f76e2e1f27827

          SHA256

          c7dcb35fe7258ccbebe3b42065a24813c0a012a26fdd3990627114687ca3d3b3

          SHA512

          08f1af47db96836452624f032cd59d7b435ef86a7ca45284a3948a23a37401df6a96cdc599a805098a35c7f8c5719a077d180c778d82127521b9f31f02ed9add

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

          Filesize

          9.4MB

          MD5

          0894f84db87ca8148cd35781341489a2

          SHA1

          de5b88287a6454115d06de0d555e94820c3791c8

          SHA256

          c06cab989e964346467e4190f382ebc1777ef20786ac7f190ae080b8422f2d88

          SHA512

          00579a26b5640deae733df142f3e86a4b62c9a52828256d7ce165ad8ac7ffb2233a8e1f9a96268e3391e0ebcabb136e62633660881b8dbafc410b7531731566c

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

          Filesize

          9.4MB

          MD5

          0894f84db87ca8148cd35781341489a2

          SHA1

          de5b88287a6454115d06de0d555e94820c3791c8

          SHA256

          c06cab989e964346467e4190f382ebc1777ef20786ac7f190ae080b8422f2d88

          SHA512

          00579a26b5640deae733df142f3e86a4b62c9a52828256d7ce165ad8ac7ffb2233a8e1f9a96268e3391e0ebcabb136e62633660881b8dbafc410b7531731566c

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

          Filesize

          9.4MB

          MD5

          0894f84db87ca8148cd35781341489a2

          SHA1

          de5b88287a6454115d06de0d555e94820c3791c8

          SHA256

          c06cab989e964346467e4190f382ebc1777ef20786ac7f190ae080b8422f2d88

          SHA512

          00579a26b5640deae733df142f3e86a4b62c9a52828256d7ce165ad8ac7ffb2233a8e1f9a96268e3391e0ebcabb136e62633660881b8dbafc410b7531731566c

        • \Users\Admin\AppData\Local\Temp\dan4000new.exe

          Filesize

          27KB

          MD5

          3a523f042269c18d7ee4ab65970c765b

          SHA1

          3dc6182faa831f570beb8445f20f76e2e1f27827

          SHA256

          c7dcb35fe7258ccbebe3b42065a24813c0a012a26fdd3990627114687ca3d3b3

          SHA512

          08f1af47db96836452624f032cd59d7b435ef86a7ca45284a3948a23a37401df6a96cdc599a805098a35c7f8c5719a077d180c778d82127521b9f31f02ed9add

        • memory/368-109-0x0000000000000000-mapping.dmp

        • memory/772-86-0x0000000073A40000-0x0000000073FEB000-memory.dmp

          Filesize

          5.7MB

        • memory/772-77-0x0000000073A40000-0x0000000073FEB000-memory.dmp

          Filesize

          5.7MB

        • memory/772-72-0x0000000000000000-mapping.dmp

        • memory/924-89-0x0000000000000000-mapping.dmp

        • memory/980-90-0x0000000000000000-mapping.dmp

        • memory/1048-54-0x00000000002B0000-0x000000000044A000-memory.dmp

          Filesize

          1.6MB

        • memory/1048-55-0x0000000076171000-0x0000000076173000-memory.dmp

          Filesize

          8KB

        • memory/1208-81-0x0000000000F40000-0x00000000010DA000-memory.dmp

          Filesize

          1.6MB

        • memory/1208-79-0x0000000000000000-mapping.dmp

        • memory/1284-108-0x0000000000000000-mapping.dmp

        • memory/1316-65-0x0000000000400000-0x00000000007E4000-memory.dmp

          Filesize

          3.9MB

        • memory/1316-83-0x0000000000260000-0x000000000026A000-memory.dmp

          Filesize

          40KB

        • memory/1316-70-0x0000000000400000-0x00000000007E4000-memory.dmp

          Filesize

          3.9MB

        • memory/1316-69-0x0000000000400000-0x00000000007E4000-memory.dmp

          Filesize

          3.9MB

        • memory/1316-66-0x0000000000400000-0x00000000007E4000-memory.dmp

          Filesize

          3.9MB

        • memory/1316-64-0x00000000007E2730-mapping.dmp

        • memory/1316-63-0x0000000000400000-0x00000000007E4000-memory.dmp

          Filesize

          3.9MB

        • memory/1316-76-0x0000000000400000-0x00000000007E4000-memory.dmp

          Filesize

          3.9MB

        • memory/1316-84-0x0000000000260000-0x000000000026A000-memory.dmp

          Filesize

          40KB

        • memory/1316-85-0x0000000000400000-0x00000000007E4000-memory.dmp

          Filesize

          3.9MB

        • memory/1316-62-0x0000000000400000-0x00000000007E4000-memory.dmp

          Filesize

          3.9MB

        • memory/1316-87-0x0000000000260000-0x000000000026A000-memory.dmp

          Filesize

          40KB

        • memory/1316-59-0x0000000000400000-0x00000000007E4000-memory.dmp

          Filesize

          3.9MB

        • memory/1316-60-0x0000000000400000-0x00000000007E4000-memory.dmp

          Filesize

          3.9MB

        • memory/1356-57-0x0000000000000000-mapping.dmp

        • memory/1424-58-0x0000000000000000-mapping.dmp

        • memory/1424-105-0x0000000000000000-mapping.dmp

        • memory/1508-56-0x0000000000000000-mapping.dmp

        • memory/1540-110-0x0000000000000000-mapping.dmp

        • memory/1568-88-0x0000000000000000-mapping.dmp

        • memory/2000-124-0x0000000000400000-0x00000000007E4000-memory.dmp

          Filesize

          3.9MB

        • memory/2000-123-0x0000000000400000-0x00000000007E4000-memory.dmp

          Filesize

          3.9MB

        • memory/2000-116-0x00000000007E2730-mapping.dmp

        • memory/2004-97-0x0000000000470000-0x0000000000854000-memory.dmp

          Filesize

          3.9MB

        • memory/2004-92-0x00000000006E2000-0x0000000000853000-memory.dmp

          Filesize

          1.4MB

        • memory/2004-104-0x0000000000470000-0x0000000000854000-memory.dmp

          Filesize

          3.9MB

        • memory/2004-103-0x0000000000470000-0x0000000000854000-memory.dmp

          Filesize

          3.9MB

        • memory/2004-96-0x00000000007E2730-mapping.dmp

        • memory/2004-98-0x0000000000470000-0x0000000000854000-memory.dmp

          Filesize

          3.9MB

        • memory/2004-101-0x0000000000470000-0x0000000000854000-memory.dmp

          Filesize

          3.9MB