Analysis

  • max time kernel
    151s
  • max time network
    140s
  • 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

    4ae73bfefefb1e74a928827cf4f59b3f136e739775209353af6d43bb5bde0d44.exe

  • Size

    742KB

  • MD5

    0c27d36bd2796e873a7f5a45915e85b3

  • SHA1

    e6c30d3e932f6c00dac3c8d65edd59e3cb667a03

  • SHA256

    4ae73bfefefb1e74a928827cf4f59b3f136e739775209353af6d43bb5bde0d44

  • SHA512

    b705af364764061f7ed044771dc2ad48256bcc4a8166ef1bb3319bebdee440e172102000b02c4f8ea1b1d4f4594ba439a05efed895e033822a9462d98f8beef2

  • SSDEEP

    12288:g/MwIMg8dyQjNrrQzo6xAFix8eylAYjzFpRgeZL7+sHKd:g/SgXvQM2DdlYjvfqd

Malware Config

Signatures

  • HawkEye

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

  • NirSoft MailPassView 13 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 12 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 16 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 48 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4ae73bfefefb1e74a928827cf4f59b3f136e739775209353af6d43bb5bde0d44.exe
    "C:\Users\Admin\AppData\Local\Temp\4ae73bfefefb1e74a928827cf4f59b3f136e739775209353af6d43bb5bde0d44.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2028
    • C:\Users\Admin\AppData\Local\Temp\4ae73bfefefb1e74a928827cf4f59b3f136e739775209353af6d43bb5bde0d44.exe
      "C:\Users\Admin\AppData\Local\Temp\4ae73bfefefb1e74a928827cf4f59b3f136e739775209353af6d43bb5bde0d44.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1980
      • 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:376
        • 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:280
          • 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:2044
          • 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:1704

    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

      bc6e44f26c673ae5933f8fc2c1655b0e

      SHA1

      f2f4fcfcb8a4e6ccaf9a34a7294927593dbfc57f

      SHA256

      6133dd139c15b93f1bd500322493fbece9d99be8a95d138c48b4135c9a40cf21

      SHA512

      391c3a2320332c4155fa90d5fbee1c172cde8451555e4c6a0ab0164953b8b99fc6931e32571846edcc23178de19628d29d221b2437c2c894f3f66b370ad7c59c

    • 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

      742KB

      MD5

      0c27d36bd2796e873a7f5a45915e85b3

      SHA1

      e6c30d3e932f6c00dac3c8d65edd59e3cb667a03

      SHA256

      4ae73bfefefb1e74a928827cf4f59b3f136e739775209353af6d43bb5bde0d44

      SHA512

      b705af364764061f7ed044771dc2ad48256bcc4a8166ef1bb3319bebdee440e172102000b02c4f8ea1b1d4f4594ba439a05efed895e033822a9462d98f8beef2

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

      742KB

      MD5

      0c27d36bd2796e873a7f5a45915e85b3

      SHA1

      e6c30d3e932f6c00dac3c8d65edd59e3cb667a03

      SHA256

      4ae73bfefefb1e74a928827cf4f59b3f136e739775209353af6d43bb5bde0d44

      SHA512

      b705af364764061f7ed044771dc2ad48256bcc4a8166ef1bb3319bebdee440e172102000b02c4f8ea1b1d4f4594ba439a05efed895e033822a9462d98f8beef2

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

      742KB

      MD5

      0c27d36bd2796e873a7f5a45915e85b3

      SHA1

      e6c30d3e932f6c00dac3c8d65edd59e3cb667a03

      SHA256

      4ae73bfefefb1e74a928827cf4f59b3f136e739775209353af6d43bb5bde0d44

      SHA512

      b705af364764061f7ed044771dc2ad48256bcc4a8166ef1bb3319bebdee440e172102000b02c4f8ea1b1d4f4594ba439a05efed895e033822a9462d98f8beef2

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

      742KB

      MD5

      0c27d36bd2796e873a7f5a45915e85b3

      SHA1

      e6c30d3e932f6c00dac3c8d65edd59e3cb667a03

      SHA256

      4ae73bfefefb1e74a928827cf4f59b3f136e739775209353af6d43bb5bde0d44

      SHA512

      b705af364764061f7ed044771dc2ad48256bcc4a8166ef1bb3319bebdee440e172102000b02c4f8ea1b1d4f4594ba439a05efed895e033822a9462d98f8beef2

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

      742KB

      MD5

      0c27d36bd2796e873a7f5a45915e85b3

      SHA1

      e6c30d3e932f6c00dac3c8d65edd59e3cb667a03

      SHA256

      4ae73bfefefb1e74a928827cf4f59b3f136e739775209353af6d43bb5bde0d44

      SHA512

      b705af364764061f7ed044771dc2ad48256bcc4a8166ef1bb3319bebdee440e172102000b02c4f8ea1b1d4f4594ba439a05efed895e033822a9462d98f8beef2

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

      742KB

      MD5

      0c27d36bd2796e873a7f5a45915e85b3

      SHA1

      e6c30d3e932f6c00dac3c8d65edd59e3cb667a03

      SHA256

      4ae73bfefefb1e74a928827cf4f59b3f136e739775209353af6d43bb5bde0d44

      SHA512

      b705af364764061f7ed044771dc2ad48256bcc4a8166ef1bb3319bebdee440e172102000b02c4f8ea1b1d4f4594ba439a05efed895e033822a9462d98f8beef2

    • memory/280-94-0x00000000005E0000-0x0000000000620000-memory.dmp
      Filesize

      256KB

    • memory/280-100-0x00000000005E0000-0x0000000000620000-memory.dmp
      Filesize

      256KB

    • memory/280-105-0x00000000005E0000-0x0000000000620000-memory.dmp
      Filesize

      256KB

    • memory/280-86-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
      Filesize

      4KB

    • memory/280-115-0x00000000005E0000-0x0000000000620000-memory.dmp
      Filesize

      256KB

    • memory/280-90-0x0000000000400000-0x0000000000484000-memory.dmp
      Filesize

      528KB

    • memory/280-92-0x0000000000400000-0x0000000000484000-memory.dmp
      Filesize

      528KB

    • memory/376-93-0x0000000000340000-0x0000000000380000-memory.dmp
      Filesize

      256KB

    • memory/1704-108-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1704-110-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1704-114-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1980-70-0x0000000000080000-0x0000000000104000-memory.dmp
      Filesize

      528KB

    • memory/1980-60-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
      Filesize

      4KB

    • memory/1980-67-0x0000000000080000-0x0000000000104000-memory.dmp
      Filesize

      528KB

    • memory/1980-63-0x0000000000080000-0x0000000000104000-memory.dmp
      Filesize

      528KB

    • memory/1980-56-0x0000000000080000-0x0000000000104000-memory.dmp
      Filesize

      528KB

    • memory/1980-57-0x0000000000080000-0x0000000000104000-memory.dmp
      Filesize

      528KB

    • memory/1980-71-0x00000000020D0000-0x0000000002110000-memory.dmp
      Filesize

      256KB

    • memory/1980-62-0x0000000000080000-0x0000000000104000-memory.dmp
      Filesize

      528KB

    • memory/1980-58-0x0000000000080000-0x0000000000104000-memory.dmp
      Filesize

      528KB

    • memory/1980-59-0x0000000000080000-0x0000000000104000-memory.dmp
      Filesize

      528KB

    • memory/2028-54-0x0000000002030000-0x0000000002070000-memory.dmp
      Filesize

      256KB

    • memory/2044-104-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/2044-107-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/2044-106-0x0000000000420000-0x0000000000487000-memory.dmp
      Filesize

      412KB

    • memory/2044-103-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/2044-101-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB