Analysis

  • max time kernel
    150s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    03-05-2023 08:23

General

  • Target

    tmpqlvnosza.exe

  • Size

    658KB

  • MD5

    5e9a63f5b3d8f53478a2889c0eefd510

  • SHA1

    d6d545146b969ac2ea389a1f11ffcda377549da2

  • SHA256

    4c312e3cce557ee17db0299bcc112699e616fb162afdadf12a41815a4a314b5c

  • SHA512

    2ee785eafa4ff4e738f13c26659b479ef84d52977e0c6d054c4b38f228959a0909b8652923b821d557bef7ae3e5f129e6b2c5039b83bb1a71ef464d6e5ef5e87

  • SSDEEP

    12288:gXQnnE6+s3WsZ/lkwR939lgKFWRg1xY0VcRuaHuatAUz3huJ7XrjaJ+:gXQnnYsNHXR9NlgobVcUK7UXrj++

Malware Config

Signatures

  • HawkEye

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

  • NirSoft MailPassView 14 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 13 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 17 IoCs
  • Deletes itself 1 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 3 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 56 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmpqlvnosza.exe
    "C:\Users\Admin\AppData\Local\Temp\tmpqlvnosza.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1104
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe"
      2⤵
        PID:1376
      • C:\Users\Admin\AppData\Local\Temp\tmpqlvnosza.exe
        "C:\Users\Admin\AppData\Local\Temp\tmpqlvnosza.exe"
        2⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1276
        • 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:928
          • C:\Windows\SysWOW64\cmd.exe
            "cmd.exe"
            4⤵
              PID:1536
            • C:\Users\Admin\AppData\Roaming\Windows Update.exe
              "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
              4⤵
              • Deletes itself
              • 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:836
              • 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:1656
              • 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:1728

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

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

          Filesize

          49B

          MD5

          192f84fd20e23fee0b0c37b618a5a3ad

          SHA1

          8aa09422bf68759bf79b374070080760f84ee197

          SHA256

          b5e09479ec3550cdaa5b819cd26f9a0947b09971d01abc2e71bdee8a96e367a8

          SHA512

          518098c115766f1883e1576e80fb855b4be45b45ddcd55cc757da777fef561a818e5fc178f1b82fd86c1f78e9aef9e0c297b467b27a7a8e2681051457ac765d8

        • 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

          658KB

          MD5

          5e9a63f5b3d8f53478a2889c0eefd510

          SHA1

          d6d545146b969ac2ea389a1f11ffcda377549da2

          SHA256

          4c312e3cce557ee17db0299bcc112699e616fb162afdadf12a41815a4a314b5c

          SHA512

          2ee785eafa4ff4e738f13c26659b479ef84d52977e0c6d054c4b38f228959a0909b8652923b821d557bef7ae3e5f129e6b2c5039b83bb1a71ef464d6e5ef5e87

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

          Filesize

          658KB

          MD5

          5e9a63f5b3d8f53478a2889c0eefd510

          SHA1

          d6d545146b969ac2ea389a1f11ffcda377549da2

          SHA256

          4c312e3cce557ee17db0299bcc112699e616fb162afdadf12a41815a4a314b5c

          SHA512

          2ee785eafa4ff4e738f13c26659b479ef84d52977e0c6d054c4b38f228959a0909b8652923b821d557bef7ae3e5f129e6b2c5039b83bb1a71ef464d6e5ef5e87

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

          Filesize

          658KB

          MD5

          5e9a63f5b3d8f53478a2889c0eefd510

          SHA1

          d6d545146b969ac2ea389a1f11ffcda377549da2

          SHA256

          4c312e3cce557ee17db0299bcc112699e616fb162afdadf12a41815a4a314b5c

          SHA512

          2ee785eafa4ff4e738f13c26659b479ef84d52977e0c6d054c4b38f228959a0909b8652923b821d557bef7ae3e5f129e6b2c5039b83bb1a71ef464d6e5ef5e87

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

          Filesize

          658KB

          MD5

          5e9a63f5b3d8f53478a2889c0eefd510

          SHA1

          d6d545146b969ac2ea389a1f11ffcda377549da2

          SHA256

          4c312e3cce557ee17db0299bcc112699e616fb162afdadf12a41815a4a314b5c

          SHA512

          2ee785eafa4ff4e738f13c26659b479ef84d52977e0c6d054c4b38f228959a0909b8652923b821d557bef7ae3e5f129e6b2c5039b83bb1a71ef464d6e5ef5e87

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

          Filesize

          658KB

          MD5

          5e9a63f5b3d8f53478a2889c0eefd510

          SHA1

          d6d545146b969ac2ea389a1f11ffcda377549da2

          SHA256

          4c312e3cce557ee17db0299bcc112699e616fb162afdadf12a41815a4a314b5c

          SHA512

          2ee785eafa4ff4e738f13c26659b479ef84d52977e0c6d054c4b38f228959a0909b8652923b821d557bef7ae3e5f129e6b2c5039b83bb1a71ef464d6e5ef5e87

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

          Filesize

          658KB

          MD5

          5e9a63f5b3d8f53478a2889c0eefd510

          SHA1

          d6d545146b969ac2ea389a1f11ffcda377549da2

          SHA256

          4c312e3cce557ee17db0299bcc112699e616fb162afdadf12a41815a4a314b5c

          SHA512

          2ee785eafa4ff4e738f13c26659b479ef84d52977e0c6d054c4b38f228959a0909b8652923b821d557bef7ae3e5f129e6b2c5039b83bb1a71ef464d6e5ef5e87

        • memory/836-99-0x0000000002250000-0x0000000002290000-memory.dmp

          Filesize

          256KB

        • memory/836-92-0x0000000002250000-0x0000000002290000-memory.dmp

          Filesize

          256KB

        • memory/836-104-0x0000000002250000-0x0000000002290000-memory.dmp

          Filesize

          256KB

        • memory/836-80-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/836-114-0x0000000002250000-0x0000000002290000-memory.dmp

          Filesize

          256KB

        • memory/836-84-0x0000000000140000-0x00000000001C4000-memory.dmp

          Filesize

          528KB

        • memory/836-88-0x0000000000140000-0x00000000001C4000-memory.dmp

          Filesize

          528KB

        • memory/836-91-0x0000000000140000-0x00000000001C4000-memory.dmp

          Filesize

          528KB

        • memory/928-93-0x0000000002100000-0x0000000002140000-memory.dmp

          Filesize

          256KB

        • memory/1104-55-0x0000000000690000-0x00000000006D0000-memory.dmp

          Filesize

          256KB

        • memory/1276-65-0x0000000000400000-0x0000000000484000-memory.dmp

          Filesize

          528KB

        • memory/1276-58-0x0000000000400000-0x0000000000484000-memory.dmp

          Filesize

          528KB

        • memory/1276-61-0x0000000000400000-0x0000000000484000-memory.dmp

          Filesize

          528KB

        • memory/1276-59-0x0000000000400000-0x0000000000484000-memory.dmp

          Filesize

          528KB

        • memory/1276-60-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/1276-56-0x0000000000400000-0x0000000000484000-memory.dmp

          Filesize

          528KB

        • memory/1276-57-0x0000000000400000-0x0000000000484000-memory.dmp

          Filesize

          528KB

        • memory/1276-63-0x0000000000400000-0x0000000000484000-memory.dmp

          Filesize

          528KB

        • memory/1656-103-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB

        • memory/1656-106-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB

        • memory/1656-102-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB

        • memory/1656-100-0x0000000000400000-0x000000000041B000-memory.dmp

          Filesize

          108KB

        • memory/1728-107-0x0000000000400000-0x0000000000458000-memory.dmp

          Filesize

          352KB

        • memory/1728-109-0x0000000000400000-0x0000000000458000-memory.dmp

          Filesize

          352KB

        • memory/1728-113-0x0000000000400000-0x0000000000458000-memory.dmp

          Filesize

          352KB