Analysis

  • max time kernel
    132s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    25-12-2024 18:37

General

  • Target

    client.exe

  • Size

    521KB

  • MD5

    2578480b80b3aa3ddbec90695c375eae

  • SHA1

    022e141419de6a895b75e3cd4bc549a049f661ee

  • SHA256

    e8107c2899dbe1bda257098d3ec2a561babb52d7d201a43fd3f3a8580cab728f

  • SHA512

    7040fba6260b3ef7b132d596c954be19f8c15a60c90f7ab8fddf0d7b4a07a29874b81d92f7fcc23c6364c37bf27d71d650b331db5b2a06daf7e5c9acff4cda85

  • SSDEEP

    6144:7utqVhunhbS/QTjhUqBfxrwEnuNcSsm7IoYGW0VvBXCAt6kihwE+VDpJYWmlwnxH:7unhQtqB5urTIoYWBQk1E+VF9mOx9ki

Malware Config

Signatures

  • HawkEye

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

  • Hawkeye family
  • Detected Nirsoft tools 8 IoCs

    Free utilities often used by attackers which can steal passwords, product keys, etc.

  • NirSoft MailPassView 5 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 4 IoCs

    Password recovery tool for various web browsers

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • 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.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\client.exe
    "C:\Users\Admin\AppData\Local\Temp\client.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2672
    • C:\Users\Admin\AppData\Roaming\Windows Update.exe
      "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3028
      • 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"
        3⤵
        • Accesses Microsoft Outlook accounts
        • System Location Discovery: System Language Discovery
        PID:376
      • 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"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2660
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
        dw20.exe -x -s 1072
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        PID:2984

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    44B

    MD5

    742160e4a4a1d12b2e9682bc6116fc9c

    SHA1

    bc3f16b140dfdbf5b4de6ee73659162d4f3ca2f4

    SHA256

    23c1afadb9dd7c91730ca7f9b483f2b4b2b5c9ff2fc6b095ee071e2c99f03a77

    SHA512

    2b49f5b5030298f3aa171d190afdfe61ed1e5bc409ddba64fb36c72656b8205afca9e325e4e4577acb9f66aafbb2bb5693255b313a2e293f2c7bdc7a8ab55875

  • 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

    521KB

    MD5

    2578480b80b3aa3ddbec90695c375eae

    SHA1

    022e141419de6a895b75e3cd4bc549a049f661ee

    SHA256

    e8107c2899dbe1bda257098d3ec2a561babb52d7d201a43fd3f3a8580cab728f

    SHA512

    7040fba6260b3ef7b132d596c954be19f8c15a60c90f7ab8fddf0d7b4a07a29874b81d92f7fcc23c6364c37bf27d71d650b331db5b2a06daf7e5c9acff4cda85

  • memory/376-25-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/376-23-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/376-21-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/376-28-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2660-37-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/2660-31-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/2660-30-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/2672-0-0x0000000074451000-0x0000000074452000-memory.dmp

    Filesize

    4KB

  • memory/2672-11-0x0000000074450000-0x00000000749FB000-memory.dmp

    Filesize

    5.7MB

  • memory/2672-2-0x0000000074450000-0x00000000749FB000-memory.dmp

    Filesize

    5.7MB

  • memory/2672-1-0x0000000074450000-0x00000000749FB000-memory.dmp

    Filesize

    5.7MB

  • memory/3028-14-0x0000000074450000-0x00000000749FB000-memory.dmp

    Filesize

    5.7MB

  • memory/3028-29-0x0000000074450000-0x00000000749FB000-memory.dmp

    Filesize

    5.7MB

  • memory/3028-24-0x0000000074450000-0x00000000749FB000-memory.dmp

    Filesize

    5.7MB

  • memory/3028-20-0x0000000074450000-0x00000000749FB000-memory.dmp

    Filesize

    5.7MB

  • memory/3028-12-0x0000000074450000-0x00000000749FB000-memory.dmp

    Filesize

    5.7MB

  • memory/3028-13-0x0000000074450000-0x00000000749FB000-memory.dmp

    Filesize

    5.7MB

  • memory/3028-40-0x0000000074450000-0x00000000749FB000-memory.dmp

    Filesize

    5.7MB