Analysis

  • max time kernel
    169s
  • max time network
    174s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/10/2022, 17:57

General

  • Target
    b00ff2a223cf00349847087edc1eda231db103625426c732047d10bffaa11ced.exe
  • Size 3.7MB
  • Sample221001-wj35lsaedn
  • SHA256 b00ff2a223cf00349847087edc1eda231db103625426c732047d10bffaa11ced
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Detect Neshta payload 3 IoCs
  • 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 3 IoCs
  • UPX packed file 4 IoCs

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

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Loads dropped DLL 8 IoCs
  • Drops file in Program Files directory 30 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b00ff2a223cf00349847087edc1eda231db103625426c732047d10bffaa11ced.exe
    "C:\Users\Admin\AppData\Local\Temp\b00ff2a223cf00349847087edc1eda231db103625426c732047d10bffaa11ced.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:2288
    • C:\Users\Admin\AppData\Local\Temp\3582-490\b00ff2a223cf00349847087edc1eda231db103625426c732047d10bffaa11ced.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\b00ff2a223cf00349847087edc1eda231db103625426c732047d10bffaa11ced.exe"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Loads dropped DLL
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:4940
      • C:\Windows\svchost.com
        "C:\Windows\svchost.com" "C:\Users\Admin\AppData\Local\Temp\TEAMVI~1\Version7\TEAMVI~1.EXE"
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:2404
        • C:\Users\Admin\AppData\Local\Temp\TEAMVI~1\Version7\TEAMVI~1.EXE
          C:\Users\Admin\AppData\Local\Temp\TEAMVI~1\Version7\TEAMVI~1.EXE
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3176

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        b00ff2a223cf00349847087edc1eda231db103625426c732047d10bffaa11ced.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3582-490\b00ff2a223cf00349847087edc1eda231db103625426c732047d10bffaa11ced.exe
        • Size 3.6MB
        • SHA256 0f5f032332f7c343f0d8dfa9561a18b44da8106bac9885feac44fa83e35066d7
        • MD5 SHA1 SHA512 SSDEEP

        b00ff2a223cf00349847087edc1eda231db103625426c732047d10bffaa11ced.exe

        • Path C:\Users\Admin\AppData\Local\Temp\3582-490\b00ff2a223cf00349847087edc1eda231db103625426c732047d10bffaa11ced.exe
        • Size 3.6MB
        • SHA256 0f5f032332f7c343f0d8dfa9561a18b44da8106bac9885feac44fa83e35066d7
        • MD5 SHA1 SHA512 SSDEEP

        TEAMVI~1.EXE

        • Path C:\Users\Admin\AppData\Local\Temp\TEAMVI~1\Version7\TEAMVI~1.EXE
        • Size 3.5MB
        • SHA256 810bd053018dd55f8a54e364f03ae6522f037e95328573428012b28c799e1ee4
        • MD5 SHA1 SHA512 SSDEEP

        TeamViewer_.exe

        • Path C:\Users\Admin\AppData\Local\Temp\TeamViewer\Version7\TeamViewer_.exe
        • Size 3.5MB
        • SHA256 810bd053018dd55f8a54e364f03ae6522f037e95328573428012b28c799e1ee4
        • MD5 SHA1 SHA512 SSDEEP

        InstallOptions.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsaACDC.tmp\InstallOptions.dll
        • Size 15KB
        • SHA256 f530069ef87a1c163c4fd63a3d5b053420ce3d7a98739c70211b4a99f90d6277
        • MD5 SHA1 SHA512 SSDEEP

        System.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsaACDC.tmp\System.dll
        • Size 11KB
        • SHA256 7851cb12fa4131f1fee5de390d650ef65cac561279f1cfe70ad16cc9780210af
        • MD5 SHA1 SHA512 SSDEEP

        TvGetVersion.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsaACDC.tmp\TvGetVersion.dll
        • Size 141KB
        • SHA256 80c4332936d17604a2327ae7575fd8553219bd06a35c055ff9f0face1a7a5d59
        • MD5 SHA1 SHA512 SSDEEP

        TvGetVersion.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsaACDC.tmp\TvGetVersion.dll
        • Size 141KB
        • SHA256 80c4332936d17604a2327ae7575fd8553219bd06a35c055ff9f0face1a7a5d59
        • MD5 SHA1 SHA512 SSDEEP

        TvGetVersion.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsaACDC.tmp\TvGetVersion.dll
        • Size 141KB
        • SHA256 80c4332936d17604a2327ae7575fd8553219bd06a35c055ff9f0face1a7a5d59
        • MD5 SHA1 SHA512 SSDEEP

        UserInfo.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsaACDC.tmp\UserInfo.dll
        • Size 4KB
        • SHA256 6293408a5fa6d0f55f0a4d01528eb5b807ee9447a75a28b5986267475ebcd3ae
        • MD5 SHA1 SHA512

        UserInfo.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsaACDC.tmp\UserInfo.dll
        • Size 4KB
        • SHA256 6293408a5fa6d0f55f0a4d01528eb5b807ee9447a75a28b5986267475ebcd3ae
        • MD5 SHA1 SHA512

        TvGetVersion.dll

        • Path C:\Users\Admin\AppData\Local\Temp\nsh9914.tmp\TvGetVersion.dll
        • Size 130KB
        • SHA256 681cb2b67e87915f37b6f716d53626b939d534c0c3e5e9810ad025760c798270
        • MD5 SHA1 SHA512 SSDEEP

        svchost.com

        • Path C:\Windows\svchost.com
        • Size 40KB
        • SHA256 9bb8da63d146a60cc76c7aa73a1e31fcaac703968cd765ce261886ed6ee26b0b
        • MD5 SHA1 SHA512 SSDEEP

        svchost.com

        • Path C:\Windows\svchost.com
        • Size 40KB
        • SHA256 9bb8da63d146a60cc76c7aa73a1e31fcaac703968cd765ce261886ed6ee26b0b
        • MD5 SHA1 SHA512 SSDEEP

        OFFICE~1.EXE

        • Path C:\odt\OFFICE~1.EXE
        • Size 5.1MB
        • SHA256 2a1ed24be7e3859b46ec3ebc316789ead5f12055853f86a9656e04b4bb771842
        • MD5 SHA1 SHA512 SSDEEP

        memory/4940-141-0x0000000000400000-0x000000000043E000-memory.dmp

        memory/4940-135-0x0000000000400000-0x000000000043E000-memory.dmp