Analysis

  • max time kernel
    168s
  • max time network
    169s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-11-2022 14:04

General

  • Target

    d286ed84a6945afda0bc60f1c56b023dbe0dee8ee9ceba597ae413166f8b24f4.exe

  • Size

    763KB

  • MD5

    851f987b82ccc428c864f912d6002deb

  • SHA1

    e13c811442b810d1a23bfaf76fe9b0f7a3a85c4e

  • SHA256

    d286ed84a6945afda0bc60f1c56b023dbe0dee8ee9ceba597ae413166f8b24f4

  • SHA512

    b762ba618ec9722491e39087a7b7b84479b4a15f6c76bc9f601414514eacd3528cde201731f08da710dc11992ac69e54aadc1da5ae58fe4dc48dd1862bc57cc4

  • SSDEEP

    12288:+afVuVRDTPlRE7oqb8vyzHwPDkUXImNqpwGdu3UKr4+fW9Y/d4+ai73UmK:+awVR3Pj4b+WHwrZ0fKs+uY/d4ji0

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.gmail.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    better0704A

Signatures

  • HawkEye

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

  • NirSoft MailPassView 5 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 6 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 10 IoCs
  • Executes dropped EXE 4 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 1 IoCs

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

  • Maps connected drives based on registry 3 TTPs 6 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 4 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 behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 49 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d286ed84a6945afda0bc60f1c56b023dbe0dee8ee9ceba597ae413166f8b24f4.exe
    "C:\Users\Admin\AppData\Local\Temp\d286ed84a6945afda0bc60f1c56b023dbe0dee8ee9ceba597ae413166f8b24f4.exe"
    1⤵
    • Checks computer location settings
    • Maps connected drives based on registry
    • Suspicious behavior: RenamesItself
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3596
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c reg add "HKCU\Software\Microsoft\WindowsNT\CurrentVersion\Windows" /f /v "Load" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\taskhost.exe" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:480
      • C:\Windows\SysWOW64\reg.exe
        reg add "HKCU\Software\Microsoft\WindowsNT\CurrentVersion\Windows" /f /v "Load" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\taskhost.exe"
        3⤵
          PID:4116
      • C:\Users\Admin\AppData\Local\Temp\taskhost.exe
        "C:\Users\Admin\AppData\Local\Temp\taskhost.exe"
        2⤵
        • Maps connected drives based on registry
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1484
        • C:\Users\Admin\AppData\Local\Temp\taskhost.exe
          "C:\Users\Admin\AppData\Local\Temp\taskhost.exe"
          3⤵
          • Executes dropped EXE
          • Checks computer location settings
          • Suspicious use of WriteProcessMemory
          PID:5032
          • C:\Users\Admin\AppData\Roaming\Windows Update.exe
            "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
            4⤵
            • Executes dropped EXE
            • Maps connected drives based on registry
            • Suspicious use of AdjustPrivilegeToken
            PID:4516
        • C:\Users\Admin\AppData\Local\Temp\taskhost.exe
          "C:\Users\Admin\AppData\Local\Temp\taskhost.exe"
          3⤵
          • Executes dropped EXE
          PID:3828
        • C:\Users\Admin\AppData\Local\Temp\taskhost.exe
          "C:\Users\Admin\AppData\Local\Temp\taskhost.exe"
          3⤵
          • 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:2480
          • 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"
            4⤵
            • Accesses Microsoft Outlook accounts
            PID:4120
          • 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"
            4⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:1360

    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

    Query Registry

    2
    T1012

    System Information Discovery

    3
    T1082

    Peripheral Device Discovery

    1
    T1120

    Collection

    Data from Local System

    1
    T1005

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\taskhost.exe.log
      Filesize

      594B

      MD5

      fdb26b3b547022b45cfaeee57eafd566

      SHA1

      11c6798b8a59233f404014c5e79b3363cd564b37

      SHA256

      2707fc7f074413881b7bafca05079327b188db6005709951e7f69d39a2af97c0

      SHA512

      44d9bb8c0f0b341690d00eda86e15a50f7f29ce9595925c1a2a7e19ad26202d10049a7a97bea278ecb7d429ad555de8edceeffff664d4b06309a9410a09bb700

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

      46B

      MD5

      7cbb367bcd0dceb3bcb838b8f91aa764

      SHA1

      2c7a2f639747cc0180ba659a2d0fccdd6b59d9ab

      SHA256

      82872e70a5aacd44eca28d1f780f7f75c276389d4aed11b39fc265f82ed47ac7

      SHA512

      a58b4126e00cd3ff634cc7502a23809cec7cb5204265316671db8727d01951260f0fc075bfea3a29a8bf18315b163c44c8d2aef6ccb85e4078ae49be36b02a92

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

      3KB

      MD5

      f94dc819ca773f1e3cb27abbc9e7fa27

      SHA1

      9a7700efadc5ea09ab288544ef1e3cd876255086

      SHA256

      a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92

      SHA512

      72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196

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

      763KB

      MD5

      851f987b82ccc428c864f912d6002deb

      SHA1

      e13c811442b810d1a23bfaf76fe9b0f7a3a85c4e

      SHA256

      d286ed84a6945afda0bc60f1c56b023dbe0dee8ee9ceba597ae413166f8b24f4

      SHA512

      b762ba618ec9722491e39087a7b7b84479b4a15f6c76bc9f601414514eacd3528cde201731f08da710dc11992ac69e54aadc1da5ae58fe4dc48dd1862bc57cc4

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

      763KB

      MD5

      851f987b82ccc428c864f912d6002deb

      SHA1

      e13c811442b810d1a23bfaf76fe9b0f7a3a85c4e

      SHA256

      d286ed84a6945afda0bc60f1c56b023dbe0dee8ee9ceba597ae413166f8b24f4

      SHA512

      b762ba618ec9722491e39087a7b7b84479b4a15f6c76bc9f601414514eacd3528cde201731f08da710dc11992ac69e54aadc1da5ae58fe4dc48dd1862bc57cc4

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

      763KB

      MD5

      851f987b82ccc428c864f912d6002deb

      SHA1

      e13c811442b810d1a23bfaf76fe9b0f7a3a85c4e

      SHA256

      d286ed84a6945afda0bc60f1c56b023dbe0dee8ee9ceba597ae413166f8b24f4

      SHA512

      b762ba618ec9722491e39087a7b7b84479b4a15f6c76bc9f601414514eacd3528cde201731f08da710dc11992ac69e54aadc1da5ae58fe4dc48dd1862bc57cc4

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

      763KB

      MD5

      851f987b82ccc428c864f912d6002deb

      SHA1

      e13c811442b810d1a23bfaf76fe9b0f7a3a85c4e

      SHA256

      d286ed84a6945afda0bc60f1c56b023dbe0dee8ee9ceba597ae413166f8b24f4

      SHA512

      b762ba618ec9722491e39087a7b7b84479b4a15f6c76bc9f601414514eacd3528cde201731f08da710dc11992ac69e54aadc1da5ae58fe4dc48dd1862bc57cc4

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

      763KB

      MD5

      851f987b82ccc428c864f912d6002deb

      SHA1

      e13c811442b810d1a23bfaf76fe9b0f7a3a85c4e

      SHA256

      d286ed84a6945afda0bc60f1c56b023dbe0dee8ee9ceba597ae413166f8b24f4

      SHA512

      b762ba618ec9722491e39087a7b7b84479b4a15f6c76bc9f601414514eacd3528cde201731f08da710dc11992ac69e54aadc1da5ae58fe4dc48dd1862bc57cc4

    • memory/480-133-0x0000000000000000-mapping.dmp
    • memory/1360-163-0x0000000000000000-mapping.dmp
    • memory/1360-164-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1360-166-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1360-169-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1360-167-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/1484-135-0x0000000000000000-mapping.dmp
    • memory/1484-156-0x00000000747D0000-0x0000000074D81000-memory.dmp
      Filesize

      5.7MB

    • memory/1484-137-0x00000000747D0000-0x0000000074D81000-memory.dmp
      Filesize

      5.7MB

    • memory/2480-149-0x0000000000000000-mapping.dmp
    • memory/2480-154-0x00000000747D0000-0x0000000074D81000-memory.dmp
      Filesize

      5.7MB

    • memory/2480-157-0x00000000747D0000-0x0000000074D81000-memory.dmp
      Filesize

      5.7MB

    • memory/3596-132-0x00000000747D0000-0x0000000074D81000-memory.dmp
      Filesize

      5.7MB

    • memory/3596-136-0x00000000747D0000-0x0000000074D81000-memory.dmp
      Filesize

      5.7MB

    • memory/3828-147-0x0000000000000000-mapping.dmp
    • memory/4116-134-0x0000000000000000-mapping.dmp
    • memory/4120-162-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/4120-158-0x0000000000000000-mapping.dmp
    • memory/4120-159-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/4120-161-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/4516-146-0x00000000747D0000-0x0000000074D81000-memory.dmp
      Filesize

      5.7MB

    • memory/4516-142-0x0000000000000000-mapping.dmp
    • memory/4516-153-0x00000000747D0000-0x0000000074D81000-memory.dmp
      Filesize

      5.7MB

    • memory/5032-141-0x00000000747D0000-0x0000000074D81000-memory.dmp
      Filesize

      5.7MB

    • memory/5032-139-0x0000000000400000-0x000000000048C000-memory.dmp
      Filesize

      560KB

    • memory/5032-138-0x0000000000000000-mapping.dmp
    • memory/5032-145-0x00000000747D0000-0x0000000074D81000-memory.dmp
      Filesize

      5.7MB