Analysis

  • max time kernel
    133s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    12-10-2023 14:54

General

  • Target

    140802200220531MES_S Quote.exe

  • Size

    12KB

  • MD5

    1eef9f1c50a5362d4ff555b6cc5bc5df

  • SHA1

    caa4099e942052634cea6fc2866d9652f09cf546

  • SHA256

    420a2c200fde9d62bc040616edd62949aec77d6e39bf864602f584792fc8e867

  • SHA512

    56c41cf987ba22ddac2cac9ef10e3dbadf2abd99ca0ed3510883d532cc5d1625ce50426308b8e91bd20645e3812074b31b977976646d751621dd18a92b877218

  • SSDEEP

    192:nlv0pHLdF1bvM+A4tLHwpTxHR95w0J1dZdckF+syKtieOv:d+Lxbk+A4tTyFSvsyuDO

Score
10/10

Malware Config

Signatures

  • WSHRAT

    WSHRAT is a variant of Houdini worm and has vbs and js variants.

  • WSHRAT payload 2 IoCs
  • Blocklisted process makes network request 12 IoCs
  • Downloads MZ/PE file
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 4 IoCs
  • Script User-Agent 4 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\140802200220531MES_S Quote.exe
    "C:\Users\Admin\AppData\Local\Temp\140802200220531MES_S Quote.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1856
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\BIN.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\BIN.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2352
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe"
        3⤵
          PID:3028
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2692
          • C:\Windows\SysWOW64\wscript.exe
            "C:\Windows\System32\wscript.exe" "C:\Users\Admin\AppData\Roaming\vVqvy.vbs"
            4⤵
            • Blocklisted process makes network request
            • Suspicious use of WriteProcessMemory
            PID:2564
            • C:\Windows\SysWOW64\wscript.exe
              "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Local\Temp\vVqvy.vbs"
              5⤵
              • Blocklisted process makes network request
              • Modifies system certificate store
              PID:2820
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 1 & Del "C:\Users\Admin\AppData\Local\Temp\140802200220531MES_S Quote.exe"
        2⤵
        • Deletes itself
        • Suspicious use of WriteProcessMemory
        PID:2676
        • C:\Windows\system32\choice.exe
          choice /C Y /N /D Y /T 1
          3⤵
            PID:2740

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\Cab732F.tmp

        Filesize

        61KB

        MD5

        f3441b8572aae8801c04f3060b550443

        SHA1

        4ef0a35436125d6821831ef36c28ffaf196cda15

        SHA256

        6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

        SHA512

        5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

      • C:\Users\Admin\AppData\Local\Temp\Tar7370.tmp

        Filesize

        163KB

        MD5

        9441737383d21192400eca82fda910ec

        SHA1

        725e0d606a4fc9ba44aa8ffde65bed15e65367e4

        SHA256

        bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5

        SHA512

        7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

      • C:\Users\Admin\AppData\Local\Temp\vVqvy.vbs

        Filesize

        180KB

        MD5

        9bcc1d31eae798a11b1d50f46b1de92c

        SHA1

        8bc898b80ead2433ac20eaa9936d2e40ea1db01e

        SHA256

        cc2ca06bf02d0ba8b9ec6874b734bf6a39f84d536f6bb2d7cc5e3d577697e45b

        SHA512

        b0a13f056ce07f5bf1360cb9754759c499c1560ed19c684f50774d0d6f72e0669b9e10a243185d9c31555938ae2799a09222236d960fb36f935bda266b764d6d

      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\BIN.exe

        Filesize

        2.1MB

        MD5

        066dbf69cbfa16c46a2142a257c95f1d

        SHA1

        0300eb287c3e29642877772c348c6b683b86a305

        SHA256

        a075c57c5e9ab478af53bbfa19faf2fecb404abd0d1ba953e84d347d5093f906

        SHA512

        c1874bf3d3c6c56168eec1b18242af7562696e9c556ab7612b4c592b78b76286ce80a44cd55222df39f4e85e27cdf19b084dfd0a24127a73615f04545925da7a

      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\BIN.exe

        Filesize

        2.1MB

        MD5

        066dbf69cbfa16c46a2142a257c95f1d

        SHA1

        0300eb287c3e29642877772c348c6b683b86a305

        SHA256

        a075c57c5e9ab478af53bbfa19faf2fecb404abd0d1ba953e84d347d5093f906

        SHA512

        c1874bf3d3c6c56168eec1b18242af7562696e9c556ab7612b4c592b78b76286ce80a44cd55222df39f4e85e27cdf19b084dfd0a24127a73615f04545925da7a

      • C:\Users\Admin\AppData\Roaming\vVqvy.vbs

        Filesize

        180KB

        MD5

        9bcc1d31eae798a11b1d50f46b1de92c

        SHA1

        8bc898b80ead2433ac20eaa9936d2e40ea1db01e

        SHA256

        cc2ca06bf02d0ba8b9ec6874b734bf6a39f84d536f6bb2d7cc5e3d577697e45b

        SHA512

        b0a13f056ce07f5bf1360cb9754759c499c1560ed19c684f50774d0d6f72e0669b9e10a243185d9c31555938ae2799a09222236d960fb36f935bda266b764d6d

      • memory/1856-0-0x000000013FA50000-0x000000013FA5A000-memory.dmp

        Filesize

        40KB

      • memory/1856-1-0x000007FEF5D80000-0x000007FEF676C000-memory.dmp

        Filesize

        9.9MB

      • memory/1856-2-0x0000000000820000-0x00000000008A0000-memory.dmp

        Filesize

        512KB

      • memory/1856-10-0x000007FEF5D80000-0x000007FEF676C000-memory.dmp

        Filesize

        9.9MB

      • memory/2352-31-0x00000000748A0000-0x0000000074F8E000-memory.dmp

        Filesize

        6.9MB

      • memory/2352-15-0x0000000004E90000-0x000000000508A000-memory.dmp

        Filesize

        2.0MB

      • memory/2352-17-0x0000000004E50000-0x0000000004E90000-memory.dmp

        Filesize

        256KB

      • memory/2352-11-0x00000000748A0000-0x0000000074F8E000-memory.dmp

        Filesize

        6.9MB

      • memory/2352-12-0x0000000004E50000-0x0000000004E90000-memory.dmp

        Filesize

        256KB

      • memory/2352-16-0x0000000000390000-0x000000000039A000-memory.dmp

        Filesize

        40KB

      • memory/2352-13-0x0000000005090000-0x0000000005288000-memory.dmp

        Filesize

        2.0MB

      • memory/2352-14-0x0000000004E50000-0x0000000004E90000-memory.dmp

        Filesize

        256KB

      • memory/2692-22-0x0000000000400000-0x000000000048A000-memory.dmp

        Filesize

        552KB

      • memory/2692-27-0x0000000000400000-0x000000000048A000-memory.dmp

        Filesize

        552KB

      • memory/2692-32-0x0000000000400000-0x000000000048A000-memory.dmp

        Filesize

        552KB

      • memory/2692-29-0x0000000000400000-0x000000000048A000-memory.dmp

        Filesize

        552KB

      • memory/2692-33-0x00000000748A0000-0x0000000074F8E000-memory.dmp

        Filesize

        6.9MB

      • memory/2692-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

        Filesize

        4KB

      • memory/2692-36-0x00000000748A0000-0x0000000074F8E000-memory.dmp

        Filesize

        6.9MB

      • memory/2692-24-0x0000000000400000-0x000000000048A000-memory.dmp

        Filesize

        552KB

      • memory/2692-20-0x0000000000400000-0x000000000048A000-memory.dmp

        Filesize

        552KB

      • memory/2692-18-0x0000000000400000-0x000000000048A000-memory.dmp

        Filesize

        552KB