Analysis

  • max time kernel
    146s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-03-2023 02:07

General

  • Target

    88ab07c52703743422b32c40089601ed.exe

  • Size

    72KB

  • MD5

    88ab07c52703743422b32c40089601ed

  • SHA1

    5c3bf16f3db88862a66e99912e6fb82e25ce3a10

  • SHA256

    790ec551f63688e1dbeffa8e41660dca92a554e5960f8c8095b92b0b7e78fc99

  • SHA512

    bf7dc6ba3c378c226bb2f9226219c2267f21c605c7ca28b1ba13f03e248e0a138f307ea4f3d5c84cb5f23af034094968fee1536b9e93bf24bfe70545f9ec68df

  • SSDEEP

    192:G2pN99ZwLa9l7X4nuInO+++++++++++++++++++++++++++++++++++++++++++j:Gsv9WL4xmhZilZq4KCm+ApH1ThO/Ff

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

pradeepprabhu705.hopto.org:312

Attributes
  • communication_password

    827ccb0eea8a706c4c34a16891f84e7b

  • tor_process

    tor

Signatures

  • BitRAT

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\88ab07c52703743422b32c40089601ed.exe
    "C:\Users\Admin\AppData\Local\Temp\88ab07c52703743422b32c40089601ed.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2164
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMQAyADIA
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1800
    • C:\Users\Admin\AppData\Local\Temp\88ab07c52703743422b32c40089601ed.exe
      C:\Users\Admin\AppData\Local\Temp\88ab07c52703743422b32c40089601ed.exe purecrypter.exe
      2⤵
        PID:3464
      • C:\Users\Admin\AppData\Local\Temp\88ab07c52703743422b32c40089601ed.exe
        C:\Users\Admin\AppData\Local\Temp\88ab07c52703743422b32c40089601ed.exe purecrypter.exe
        2⤵
          PID:5060
        • C:\Users\Admin\AppData\Local\Temp\88ab07c52703743422b32c40089601ed.exe
          C:\Users\Admin\AppData\Local\Temp\88ab07c52703743422b32c40089601ed.exe purecrypter.exe
          2⤵
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:1344

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Persistence

      Registry Run Keys / Startup Folder

      1
      T1060

      Defense Evasion

      Modify Registry

      1
      T1112

      Discovery

      Query Registry

      1
      T1012

      System Information Discovery

      2
      T1082

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nxdgzr5y.coj.ps1
        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • memory/1344-175-0x0000000000400000-0x00000000007CE000-memory.dmp
        Filesize

        3.8MB

      • memory/1344-165-0x0000000000400000-0x00000000007CE000-memory.dmp
        Filesize

        3.8MB

      • memory/1344-184-0x0000000000400000-0x00000000007CE000-memory.dmp
        Filesize

        3.8MB

      • memory/1344-163-0x0000000000400000-0x00000000007CE000-memory.dmp
        Filesize

        3.8MB

      • memory/1344-183-0x0000000000400000-0x00000000007CE000-memory.dmp
        Filesize

        3.8MB

      • memory/1344-181-0x0000000000400000-0x00000000007CE000-memory.dmp
        Filesize

        3.8MB

      • memory/1344-180-0x0000000074E80000-0x0000000074EB9000-memory.dmp
        Filesize

        228KB

      • memory/1344-179-0x0000000000400000-0x00000000007CE000-memory.dmp
        Filesize

        3.8MB

      • memory/1344-178-0x0000000000400000-0x00000000007CE000-memory.dmp
        Filesize

        3.8MB

      • memory/1344-166-0x0000000000400000-0x00000000007CE000-memory.dmp
        Filesize

        3.8MB

      • memory/1344-177-0x0000000000400000-0x00000000007CE000-memory.dmp
        Filesize

        3.8MB

      • memory/1344-176-0x0000000000400000-0x00000000007CE000-memory.dmp
        Filesize

        3.8MB

      • memory/1344-170-0x0000000000400000-0x00000000007CE000-memory.dmp
        Filesize

        3.8MB

      • memory/1344-174-0x0000000000400000-0x00000000007CE000-memory.dmp
        Filesize

        3.8MB

      • memory/1344-173-0x0000000000400000-0x00000000007CE000-memory.dmp
        Filesize

        3.8MB

      • memory/1344-172-0x0000000000400000-0x00000000007CE000-memory.dmp
        Filesize

        3.8MB

      • memory/1344-171-0x0000000074B00000-0x0000000074B39000-memory.dmp
        Filesize

        228KB

      • memory/1344-169-0x0000000000400000-0x00000000007CE000-memory.dmp
        Filesize

        3.8MB

      • memory/1344-167-0x0000000000400000-0x00000000007CE000-memory.dmp
        Filesize

        3.8MB

      • memory/1800-151-0x0000000006420000-0x000000000643E000-memory.dmp
        Filesize

        120KB

      • memory/1800-153-0x0000000006940000-0x000000000695A000-memory.dmp
        Filesize

        104KB

      • memory/1800-137-0x0000000005610000-0x0000000005C38000-memory.dmp
        Filesize

        6.2MB

      • memory/1800-136-0x0000000004EA0000-0x0000000004ED6000-memory.dmp
        Filesize

        216KB

      • memory/1800-157-0x0000000004FD0000-0x0000000004FE0000-memory.dmp
        Filesize

        64KB

      • memory/1800-156-0x0000000004FD0000-0x0000000004FE0000-memory.dmp
        Filesize

        64KB

      • memory/1800-158-0x0000000004FD0000-0x0000000004FE0000-memory.dmp
        Filesize

        64KB

      • memory/1800-138-0x0000000005510000-0x0000000005576000-memory.dmp
        Filesize

        408KB

      • memory/1800-154-0x0000000004FD0000-0x0000000004FE0000-memory.dmp
        Filesize

        64KB

      • memory/1800-139-0x0000000005CF0000-0x0000000005D56000-memory.dmp
        Filesize

        408KB

      • memory/1800-152-0x0000000007A50000-0x00000000080CA000-memory.dmp
        Filesize

        6.5MB

      • memory/1800-150-0x0000000004FD0000-0x0000000004FE0000-memory.dmp
        Filesize

        64KB

      • memory/1800-149-0x0000000004FD0000-0x0000000004FE0000-memory.dmp
        Filesize

        64KB

      • memory/2164-134-0x0000000004A70000-0x0000000004A80000-memory.dmp
        Filesize

        64KB

      • memory/2164-135-0x0000000005840000-0x0000000005862000-memory.dmp
        Filesize

        136KB

      • memory/2164-133-0x0000000000060000-0x0000000000078000-memory.dmp
        Filesize

        96KB

      • memory/2164-155-0x0000000004A70000-0x0000000004A80000-memory.dmp
        Filesize

        64KB