Analysis

  • max time kernel
    156s
  • max time network
    171s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    07-02-2022 03:01

General

  • Target

    359b201b01aee5f412ec6a65e9504a70459ebbe77ebfdb6eb37b42651d6c7c59.exe

  • Size

    112KB

  • MD5

    8b7611f961f0e2654905ef70c64643d8

  • SHA1

    6179240e198d9cb07b2703be0b725f852303cc97

  • SHA256

    359b201b01aee5f412ec6a65e9504a70459ebbe77ebfdb6eb37b42651d6c7c59

  • SHA512

    708e2ba0d0703e0b392654f928b9c0f478d86a60be9568a0bc9bb080a21ee32fed24d8cdedfe1c6e6651918af6d13a0f23e730c40ae038448d99bcf728195737

Malware Config

Signatures

  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

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

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 7 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\359b201b01aee5f412ec6a65e9504a70459ebbe77ebfdb6eb37b42651d6c7c59.exe
    "C:\Users\Admin\AppData\Local\Temp\359b201b01aee5f412ec6a65e9504a70459ebbe77ebfdb6eb37b42651d6c7c59.exe"
    1⤵
    • Modifies system executable filetype association
    • Checks computer location settings
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3588
    • C:\Users\Admin\AppData\Local\Temp\3582-490\359b201b01aee5f412ec6a65e9504a70459ebbe77ebfdb6eb37b42651d6c7c59.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\359b201b01aee5f412ec6a65e9504a70459ebbe77ebfdb6eb37b42651d6c7c59.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1944
      • C:\Windows\system32\cmd.exe
        "C:\Windows\sysnative\cmd" /c "C:\Users\Admin\AppData\Local\Temp\B9D7.tmp\B9D8.bat C:\Users\Admin\AppData\Local\Temp\3582-490\359b201b01aee5f412ec6a65e9504a70459ebbe77ebfdb6eb37b42651d6c7c59.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2284
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c reg query "HKLM\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile" /v EnableFirewall
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:4392
          • C:\Windows\system32\reg.exe
            reg query "HKLM\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile" /v EnableFirewall
            5⤵
              PID:1292
          • C:\Windows\system32\netsh.exe
            netsh advfirewall set privateprofile state on
            4⤵
              PID:4788
            • C:\Windows\system32\reg.exe
              Reg.exe add "HKLM\SOFTWARE\Classes\Directory\background\shell\FirewallOnOff" /v "Icon" /t REG_SZ /d "C:\Windows\system32\imageres.dll,101" /f
              4⤵
              • Modifies registry class
              PID:1200
            • C:\Windows\system32\reg.exe
              Reg.exe add "HKLM\SOFTWARE\Classes\Directory\background\shell\FirewallOnOff" /ve /t REG_SZ /d "╣µ╚¡║« ╗τ┐δ ╛╚╟╘" /f
              4⤵
              • Modifies registry class
              PID:2704
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
        1⤵
        • Drops file in Windows directory
        • Suspicious use of AdjustPrivilegeToken
        PID:2440

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Temp\3582-490\359b201b01aee5f412ec6a65e9504a70459ebbe77ebfdb6eb37b42651d6c7c59.exe
        MD5

        4c7f6c95f09cad4461bd307a2c66d3f8

        SHA1

        add6f61d5490c5873872d313b8d0486ec08c3ed7

        SHA256

        a3e6aa14ac199c4c051c2646a15bb1d6b6fdfc53afde6b0c43886d2b21e35927

        SHA512

        3e0310da9041f6ecb8f3f12fd08076def65b4c9bdf14b48701d0c297571180f844d6c71d4c943eade5a4ad877ae471758584576c93188476ea92b3c313429da2

      • C:\Users\Admin\AppData\Local\Temp\3582-490\359b201b01aee5f412ec6a65e9504a70459ebbe77ebfdb6eb37b42651d6c7c59.exe
        MD5

        4c7f6c95f09cad4461bd307a2c66d3f8

        SHA1

        add6f61d5490c5873872d313b8d0486ec08c3ed7

        SHA256

        a3e6aa14ac199c4c051c2646a15bb1d6b6fdfc53afde6b0c43886d2b21e35927

        SHA512

        3e0310da9041f6ecb8f3f12fd08076def65b4c9bdf14b48701d0c297571180f844d6c71d4c943eade5a4ad877ae471758584576c93188476ea92b3c313429da2

      • C:\Users\Admin\AppData\Local\Temp\B9D7.tmp\B9D8.bat
        MD5

        0eb9a79994c76138fede24c947c5b616

        SHA1

        4953b14a02ebd61c7f112e1be2f5befa41d82ca6

        SHA256

        eb9a37341edc21ca2e5c199637269425d978ca3b41ae23d6486cd125204e0cca

        SHA512

        b106115e734afc090645092effec1015f051d394897ca584601a5a6960686e7046021fde7ec94555fc3c4c3c42f59b81b2920e665e87b231bbe74e64aa4dea27

      • memory/2440-137-0x000001E482390000-0x000001E4823A0000-memory.dmp
        Filesize

        64KB

      • memory/2440-144-0x000001E485770000-0x000001E485774000-memory.dmp
        Filesize

        16KB