Analysis

  • max time kernel
    149s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    10-05-2023 14:35

General

  • Target

    241b2515168df42784e10af72536a6d661d8bd483abae1931d81f11c8ebcdf7b.exe

  • Size

    688KB

  • MD5

    02e2a992875b23ec7aae8081b368b779

  • SHA1

    491b4ed14c4eccef51e4b980a59efeecea8b6dd0

  • SHA256

    241b2515168df42784e10af72536a6d661d8bd483abae1931d81f11c8ebcdf7b

  • SHA512

    44fec96393f437c7576f2c54cd7bb2d2fee82b3fe040240fda494ab71164301e621c2a2c54a1d2b272f89b8c9abc882b7e93d05a4a5af3cfba22ce8c3ed578c1

  • SSDEEP

    12288:WErur6nhxWCV8OO13OzEuXZtRLe8S542pExolJgiiy:WEarKhxWCcOz7XZrLYi

Malware Config

Signatures

  • HawkEye

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

  • NirSoft MailPassView 11 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 10 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 14 IoCs
  • Executes dropped EXE 2 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
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 2 IoCs

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

  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 48 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\241b2515168df42784e10af72536a6d661d8bd483abae1931d81f11c8ebcdf7b.exe
    "C:\Users\Admin\AppData\Local\Temp\241b2515168df42784e10af72536a6d661d8bd483abae1931d81f11c8ebcdf7b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2040
    • C:\Users\Admin\AppData\Local\Temp\241b2515168df42784e10af72536a6d661d8bd483abae1931d81f11c8ebcdf7b.exe
      "C:\Users\Admin\AppData\Local\Temp\241b2515168df42784e10af72536a6d661d8bd483abae1931d81f11c8ebcdf7b.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:924
      • 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 behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1484
        • C:\Users\Admin\AppData\Roaming\Windows Update.exe
          "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
          4⤵
          • Executes dropped EXE
          • 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:788
          • 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\holdermail.txt"
            5⤵
            • Accesses Microsoft Outlook accounts
            PID:1540
          • 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:944

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scripting

    1
    T1064

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Scripting

    1
    T1064

    Modify Registry

    1
    T1112

    Credential Access

    Credentials in Files

    1
    T1081

    Discovery

    System Information Discovery

    1
    T1082

    Collection

    Data from Local System

    1
    T1005

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      102B

      MD5

      7b5995f2306dbbff4e2b039a50205130

      SHA1

      fb2023b5af85ad8e53de92215e3f0d907938b368

      SHA256

      153ce0f68e35f10e3a82e05526ae2c8024c5c449899403561a847d7203adc001

      SHA512

      a7158f0c48053cd7ba25ea6de86001200e4a7800ed8641eaaf6663232a9ac0c9ad95cfdd4839362949c437f24ea8ec6d63a5b599b74a46f5c5f6f5c32eed9c39

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

      2B

      MD5

      f3b25701fe362ec84616a93a45ce9998

      SHA1

      d62636d8caec13f04e28442a0a6fa1afeb024bbb

      SHA256

      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

      SHA512

      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

    • C:\Users\Admin\AppData\Local\Temp\svhost.exe
      Filesize

      85KB

      MD5

      2e5f1cf69f92392f8829fc9c9263ae9b

      SHA1

      97b9ca766bbbdaa8c9ec960dc41b598f7fad82a5

      SHA256

      51985a57e085d8b17042f0cdc1f905380b792854733eb3275fd8fce4e3bb886b

      SHA512

      f7e096dd9d0fa3a3c04c01bf229c4b344798a4c8b7b848588c1d78cb9fadfa9b1d0fd53c1fe74d191d5561e9eb551a4a3fc918363f119ea60024dd3d67c83883

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

      688KB

      MD5

      02e2a992875b23ec7aae8081b368b779

      SHA1

      491b4ed14c4eccef51e4b980a59efeecea8b6dd0

      SHA256

      241b2515168df42784e10af72536a6d661d8bd483abae1931d81f11c8ebcdf7b

      SHA512

      44fec96393f437c7576f2c54cd7bb2d2fee82b3fe040240fda494ab71164301e621c2a2c54a1d2b272f89b8c9abc882b7e93d05a4a5af3cfba22ce8c3ed578c1

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

      688KB

      MD5

      02e2a992875b23ec7aae8081b368b779

      SHA1

      491b4ed14c4eccef51e4b980a59efeecea8b6dd0

      SHA256

      241b2515168df42784e10af72536a6d661d8bd483abae1931d81f11c8ebcdf7b

      SHA512

      44fec96393f437c7576f2c54cd7bb2d2fee82b3fe040240fda494ab71164301e621c2a2c54a1d2b272f89b8c9abc882b7e93d05a4a5af3cfba22ce8c3ed578c1

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

      688KB

      MD5

      02e2a992875b23ec7aae8081b368b779

      SHA1

      491b4ed14c4eccef51e4b980a59efeecea8b6dd0

      SHA256

      241b2515168df42784e10af72536a6d661d8bd483abae1931d81f11c8ebcdf7b

      SHA512

      44fec96393f437c7576f2c54cd7bb2d2fee82b3fe040240fda494ab71164301e621c2a2c54a1d2b272f89b8c9abc882b7e93d05a4a5af3cfba22ce8c3ed578c1

    • C:\Users\Admin\AppData\Roaming\WindowsUpdate.exe
      Filesize

      688KB

      MD5

      02e2a992875b23ec7aae8081b368b779

      SHA1

      491b4ed14c4eccef51e4b980a59efeecea8b6dd0

      SHA256

      241b2515168df42784e10af72536a6d661d8bd483abae1931d81f11c8ebcdf7b

      SHA512

      44fec96393f437c7576f2c54cd7bb2d2fee82b3fe040240fda494ab71164301e621c2a2c54a1d2b272f89b8c9abc882b7e93d05a4a5af3cfba22ce8c3ed578c1

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

      688KB

      MD5

      02e2a992875b23ec7aae8081b368b779

      SHA1

      491b4ed14c4eccef51e4b980a59efeecea8b6dd0

      SHA256

      241b2515168df42784e10af72536a6d661d8bd483abae1931d81f11c8ebcdf7b

      SHA512

      44fec96393f437c7576f2c54cd7bb2d2fee82b3fe040240fda494ab71164301e621c2a2c54a1d2b272f89b8c9abc882b7e93d05a4a5af3cfba22ce8c3ed578c1

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

      688KB

      MD5

      02e2a992875b23ec7aae8081b368b779

      SHA1

      491b4ed14c4eccef51e4b980a59efeecea8b6dd0

      SHA256

      241b2515168df42784e10af72536a6d661d8bd483abae1931d81f11c8ebcdf7b

      SHA512

      44fec96393f437c7576f2c54cd7bb2d2fee82b3fe040240fda494ab71164301e621c2a2c54a1d2b272f89b8c9abc882b7e93d05a4a5af3cfba22ce8c3ed578c1

    • memory/788-96-0x0000000000BE0000-0x0000000000C20000-memory.dmp
      Filesize

      256KB

    • memory/788-81-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
      Filesize

      4KB

    • memory/788-88-0x0000000000BE0000-0x0000000000C20000-memory.dmp
      Filesize

      256KB

    • memory/788-93-0x0000000000BE0000-0x0000000000C20000-memory.dmp
      Filesize

      256KB

    • memory/788-109-0x0000000000BE0000-0x0000000000C20000-memory.dmp
      Filesize

      256KB

    • memory/924-65-0x0000000000400000-0x0000000000484000-memory.dmp
      Filesize

      528KB

    • memory/924-66-0x00000000024C0000-0x0000000002500000-memory.dmp
      Filesize

      256KB

    • memory/924-56-0x0000000000400000-0x0000000000484000-memory.dmp
      Filesize

      528KB

    • memory/924-63-0x0000000000400000-0x0000000000484000-memory.dmp
      Filesize

      528KB

    • memory/924-57-0x0000000000400000-0x0000000000484000-memory.dmp
      Filesize

      528KB

    • memory/924-61-0x0000000000400000-0x0000000000484000-memory.dmp
      Filesize

      528KB

    • memory/924-60-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
      Filesize

      4KB

    • memory/924-59-0x0000000000400000-0x0000000000484000-memory.dmp
      Filesize

      528KB

    • memory/924-58-0x0000000000400000-0x0000000000484000-memory.dmp
      Filesize

      528KB

    • memory/944-102-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/944-104-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/944-107-0x0000000000460000-0x00000000004C7000-memory.dmp
      Filesize

      412KB

    • memory/944-108-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1484-89-0x0000000000BB0000-0x0000000000BF0000-memory.dmp
      Filesize

      256KB

    • memory/1540-99-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1540-100-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1540-101-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1540-97-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/2040-54-0x0000000000560000-0x00000000005A0000-memory.dmp
      Filesize

      256KB