Analysis

  • max time kernel
    152s
  • max time network
    159s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    12-10-2023 11:08

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 3 IoCs
  • Blocklisted process makes network request 5 IoCs
  • Downloads MZ/PE file
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • 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 use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 27 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:2064
    • 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 use of WriteProcessMemory
      PID:2360
      • 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:2024
        • 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:2412
          • 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:1672
    • 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:2800
      • C:\Windows\system32\choice.exe
        choice /C Y /N /D Y /T 1
        3⤵
          PID:2472

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\Cab8CC7.tmp

      Filesize

      61KB

      MD5

      f3441b8572aae8801c04f3060b550443

      SHA1

      4ef0a35436125d6821831ef36c28ffaf196cda15

      SHA256

      6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

      SHA512

      5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

    • C:\Users\Admin\AppData\Local\Temp\Tar8EFC.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\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/2024-23-0x0000000000400000-0x000000000048A000-memory.dmp

      Filesize

      552KB

    • memory/2024-40-0x0000000073E90000-0x000000007457E000-memory.dmp

      Filesize

      6.9MB

    • memory/2024-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2024-29-0x0000000000400000-0x000000000048A000-memory.dmp

      Filesize

      552KB

    • memory/2024-37-0x0000000000400000-0x000000000048A000-memory.dmp

      Filesize

      552KB

    • memory/2024-27-0x0000000000400000-0x000000000048A000-memory.dmp

      Filesize

      552KB

    • memory/2024-25-0x0000000000400000-0x000000000048A000-memory.dmp

      Filesize

      552KB

    • memory/2024-38-0x0000000073E90000-0x000000007457E000-memory.dmp

      Filesize

      6.9MB

    • memory/2024-32-0x0000000000400000-0x000000000048A000-memory.dmp

      Filesize

      552KB

    • memory/2024-34-0x0000000000400000-0x000000000048A000-memory.dmp

      Filesize

      552KB

    • memory/2064-0-0x000007FEF57A0000-0x000007FEF618C000-memory.dmp

      Filesize

      9.9MB

    • memory/2064-1-0x000000013FE80000-0x000000013FE8A000-memory.dmp

      Filesize

      40KB

    • memory/2064-4-0x000000001BC10000-0x000000001BC90000-memory.dmp

      Filesize

      512KB

    • memory/2064-12-0x000007FEF57A0000-0x000007FEF618C000-memory.dmp

      Filesize

      9.9MB

    • memory/2064-2-0x000007FEF57A0000-0x000007FEF618C000-memory.dmp

      Filesize

      9.9MB

    • memory/2064-3-0x000000001BC10000-0x000000001BC90000-memory.dmp

      Filesize

      512KB

    • memory/2360-21-0x0000000004E30000-0x0000000004E70000-memory.dmp

      Filesize

      256KB

    • memory/2360-35-0x0000000074580000-0x0000000074C6E000-memory.dmp

      Filesize

      6.9MB

    • memory/2360-22-0x0000000004E30000-0x0000000004E70000-memory.dmp

      Filesize

      256KB

    • memory/2360-20-0x0000000074580000-0x0000000074C6E000-memory.dmp

      Filesize

      6.9MB

    • memory/2360-19-0x0000000004E30000-0x0000000004E70000-memory.dmp

      Filesize

      256KB

    • memory/2360-18-0x0000000002120000-0x000000000212A000-memory.dmp

      Filesize

      40KB

    • memory/2360-17-0x0000000004E70000-0x000000000506A000-memory.dmp

      Filesize

      2.0MB

    • memory/2360-16-0x0000000004E30000-0x0000000004E70000-memory.dmp

      Filesize

      256KB

    • memory/2360-15-0x0000000005070000-0x0000000005268000-memory.dmp

      Filesize

      2.0MB

    • memory/2360-14-0x0000000004E30000-0x0000000004E70000-memory.dmp

      Filesize

      256KB

    • memory/2360-13-0x0000000074580000-0x0000000074C6E000-memory.dmp

      Filesize

      6.9MB