Analysis

  • max time kernel
    152s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 17:17

General

  • Target

    4b9dbeee2dbe681468c1b8456226ff110e8e09914a84c5b190da6ae3f8e702f1.exe

  • Size

    513KB

  • MD5

    51fe45f2ba4d782a5bdf6d19c465269b

  • SHA1

    2a05df60cd38f24ad6f68be193eeb89029a03611

  • SHA256

    4b9dbeee2dbe681468c1b8456226ff110e8e09914a84c5b190da6ae3f8e702f1

  • SHA512

    e02e1462c3cc4845bd32da4bfb4188ad0ec7841d636a796369b235ceb9e2ed79a2b3b6a79e019dd26191c3f833bf5472f6a7b08e5aaee3c3408ca199dc757b06

  • SSDEEP

    12288:5o40ZPBwUNEN7qauy6y19wlR9EOFRXz+q/LJzZ8F:5oJBwwCruy6yKEOjTT

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.ru
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    favour123

Signatures

  • HawkEye

    HawkEye is a malware kit that has seen continuous development since at least 2013.

  • NirSoft WebBrowserPassView 12 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 12 IoCs
  • Executes dropped EXE 2 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Uses the VBS compiler for execution 1 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 3 IoCs

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

  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4b9dbeee2dbe681468c1b8456226ff110e8e09914a84c5b190da6ae3f8e702f1.exe
    "C:\Users\Admin\AppData\Local\Temp\4b9dbeee2dbe681468c1b8456226ff110e8e09914a84c5b190da6ae3f8e702f1.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1656
    • C:\Users\Admin\AppData\Local\Temp\4b9dbeee2dbe681468c1b8456226ff110e8e09914a84c5b190da6ae3f8e702f1.exe
      "C:\Users\Admin\AppData\Local\Temp\4b9dbeee2dbe681468c1b8456226ff110e8e09914a84c5b190da6ae3f8e702f1.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1156
      • C:\Users\Admin\AppData\Roaming\Windows Update.exe
        "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:292
        • C:\Users\Admin\AppData\Roaming\Windows Update.exe
          "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
          4⤵
          • Executes dropped EXE
          • Deletes itself
          • Adds Run key to start application
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:972
          • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
            C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"
            5⤵
              PID:1572

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\SysInfo.txt

      Filesize

      102B

      MD5

      c13f4576b7d7df925547cfff8a181932

      SHA1

      4301794103ed33d6a38f43e8f34341d68db16d0d

      SHA256

      26138f60b670698bafeb62c2789ab9add37ebef0e79210e32cd9133151e3f7ad

      SHA512

      f7f0ad7e66be154343a43f0ba5c12525baac0083c1470559935b98a042d1ebdd0679c2fdbcc03a1bd943f1f41e343c0d9b6f8b9fec6f2af6014cf05f9f6266bc

    • C:\Users\Admin\AppData\Local\Temp\holderwb.txt

      Filesize

      2B

      MD5

      f3b25701fe362ec84616a93a45ce9998

      SHA1

      d62636d8caec13f04e28442a0a6fa1afeb024bbb

      SHA256

      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

      SHA512

      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

    • C:\Users\Admin\AppData\Roaming\Windows Update.exe

      Filesize

      513KB

      MD5

      51fe45f2ba4d782a5bdf6d19c465269b

      SHA1

      2a05df60cd38f24ad6f68be193eeb89029a03611

      SHA256

      4b9dbeee2dbe681468c1b8456226ff110e8e09914a84c5b190da6ae3f8e702f1

      SHA512

      e02e1462c3cc4845bd32da4bfb4188ad0ec7841d636a796369b235ceb9e2ed79a2b3b6a79e019dd26191c3f833bf5472f6a7b08e5aaee3c3408ca199dc757b06

    • C:\Users\Admin\AppData\Roaming\Windows Update.exe

      Filesize

      513KB

      MD5

      51fe45f2ba4d782a5bdf6d19c465269b

      SHA1

      2a05df60cd38f24ad6f68be193eeb89029a03611

      SHA256

      4b9dbeee2dbe681468c1b8456226ff110e8e09914a84c5b190da6ae3f8e702f1

      SHA512

      e02e1462c3cc4845bd32da4bfb4188ad0ec7841d636a796369b235ceb9e2ed79a2b3b6a79e019dd26191c3f833bf5472f6a7b08e5aaee3c3408ca199dc757b06

    • C:\Users\Admin\AppData\Roaming\Windows Update.exe

      Filesize

      513KB

      MD5

      51fe45f2ba4d782a5bdf6d19c465269b

      SHA1

      2a05df60cd38f24ad6f68be193eeb89029a03611

      SHA256

      4b9dbeee2dbe681468c1b8456226ff110e8e09914a84c5b190da6ae3f8e702f1

      SHA512

      e02e1462c3cc4845bd32da4bfb4188ad0ec7841d636a796369b235ceb9e2ed79a2b3b6a79e019dd26191c3f833bf5472f6a7b08e5aaee3c3408ca199dc757b06

    • \Users\Admin\AppData\Roaming\Windows Update.exe

      Filesize

      513KB

      MD5

      51fe45f2ba4d782a5bdf6d19c465269b

      SHA1

      2a05df60cd38f24ad6f68be193eeb89029a03611

      SHA256

      4b9dbeee2dbe681468c1b8456226ff110e8e09914a84c5b190da6ae3f8e702f1

      SHA512

      e02e1462c3cc4845bd32da4bfb4188ad0ec7841d636a796369b235ceb9e2ed79a2b3b6a79e019dd26191c3f833bf5472f6a7b08e5aaee3c3408ca199dc757b06

    • \Users\Admin\AppData\Roaming\Windows Update.exe

      Filesize

      513KB

      MD5

      51fe45f2ba4d782a5bdf6d19c465269b

      SHA1

      2a05df60cd38f24ad6f68be193eeb89029a03611

      SHA256

      4b9dbeee2dbe681468c1b8456226ff110e8e09914a84c5b190da6ae3f8e702f1

      SHA512

      e02e1462c3cc4845bd32da4bfb4188ad0ec7841d636a796369b235ceb9e2ed79a2b3b6a79e019dd26191c3f833bf5472f6a7b08e5aaee3c3408ca199dc757b06

    • memory/292-90-0x0000000074EE0000-0x000000007548B000-memory.dmp

      Filesize

      5.7MB

    • memory/292-78-0x0000000074EE0000-0x000000007548B000-memory.dmp

      Filesize

      5.7MB

    • memory/292-77-0x0000000074EE0000-0x000000007548B000-memory.dmp

      Filesize

      5.7MB

    • memory/292-72-0x0000000000000000-mapping.dmp

    • memory/972-94-0x0000000074F50000-0x00000000754FB000-memory.dmp

      Filesize

      5.7MB

    • memory/972-86-0x0000000000466A2E-mapping.dmp

    • memory/972-96-0x0000000074F50000-0x00000000754FB000-memory.dmp

      Filesize

      5.7MB

    • memory/1156-58-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/1156-57-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/1156-63-0x0000000000466A2E-mapping.dmp

    • memory/1156-76-0x0000000074EE0000-0x000000007548B000-memory.dmp

      Filesize

      5.7MB

    • memory/1156-62-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/1156-61-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/1156-60-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/1156-68-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/1156-70-0x0000000074EE0000-0x000000007548B000-memory.dmp

      Filesize

      5.7MB

    • memory/1156-65-0x0000000000400000-0x000000000046C000-memory.dmp

      Filesize

      432KB

    • memory/1572-97-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1572-98-0x0000000000442628-mapping.dmp

    • memory/1572-101-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1572-102-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1572-104-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1656-54-0x00000000767D1000-0x00000000767D3000-memory.dmp

      Filesize

      8KB

    • memory/1656-56-0x0000000074F50000-0x00000000754FB000-memory.dmp

      Filesize

      5.7MB

    • memory/1656-67-0x0000000074F50000-0x00000000754FB000-memory.dmp

      Filesize

      5.7MB

    • memory/1656-55-0x0000000074F50000-0x00000000754FB000-memory.dmp

      Filesize

      5.7MB