Analysis

  • max time kernel
    118s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-12-2024 02:07

General

  • Target

    2e3a5dfa44d59681a60d78b8b08a1af3878d8e270c02d7e31a0876a85eb42a7e.exe

  • Size

    429KB

  • MD5

    51ff79b406cb223dd49dd4c947ec97b0

  • SHA1

    b9b0253480a1b6cbdd673383320fecae5efb3dce

  • SHA256

    2e3a5dfa44d59681a60d78b8b08a1af3878d8e270c02d7e31a0876a85eb42a7e

  • SHA512

    c2b8d15b0dc1b0846f39ce007be2deb41d5b6ae76af90d618f29da8691ed987c42f3c270f0ea7f4d10cbd2d3877118f4133803c9c965b6ff236ff8cfafd9367c

  • SSDEEP

    12288:v4RG6lx/9Njr18QlSfJy4FjMSkJCzDLGDWD:O9NtSTZMzmmD4

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 3 IoCs
  • Drops file in Windows directory 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 2 IoCs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2e3a5dfa44d59681a60d78b8b08a1af3878d8e270c02d7e31a0876a85eb42a7e.exe
    "C:\Users\Admin\AppData\Local\Temp\2e3a5dfa44d59681a60d78b8b08a1af3878d8e270c02d7e31a0876a85eb42a7e.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2972
    • C:\Users\Admin\AppData\Local\Temp\e458d263c0\Gxtuum.exe
      "C:\Users\Admin\AppData\Local\Temp\e458d263c0\Gxtuum.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4464
  • C:\Users\Admin\AppData\Local\Temp\e458d263c0\Gxtuum.exe
    C:\Users\Admin\AppData\Local\Temp\e458d263c0\Gxtuum.exe
    1⤵
    • Executes dropped EXE
    PID:2508
  • C:\Users\Admin\AppData\Local\Temp\e458d263c0\Gxtuum.exe
    C:\Users\Admin\AppData\Local\Temp\e458d263c0\Gxtuum.exe
    1⤵
    • Executes dropped EXE
    PID:380

Network

  • flag-us
    DNS
    8.8.8.8.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    8.8.8.8.in-addr.arpa
    IN PTR
    Response
    8.8.8.8.in-addr.arpa
    IN PTR
    dnsgoogle
  • flag-us
    DNS
    172.210.232.199.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    172.210.232.199.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    209.205.72.20.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    209.205.72.20.in-addr.arpa
    IN PTR
    Response
  • flag-hu
    POST
    http://212.193.31.8/3ofn3jf3e2ljk2/index.php
    Gxtuum.exe
    Remote address:
    212.193.31.8:80
    Request
    POST /3ofn3jf3e2ljk2/index.php HTTP/1.1
    Content-Type: application/x-www-form-urlencoded
    Host: 212.193.31.8
    Content-Length: 4
    Cache-Control: no-cache
    Response
    HTTP/1.1 200 OK
    Date: Sun, 22 Dec 2024 02:08:06 GMT
    Server: Apache/2.4.58 (Ubuntu)
    Content-Length: 8
    Content-Type: text/html; charset=UTF-8
  • flag-hu
    POST
    http://212.193.31.8/3ofn3jf3e2ljk2/index.php
    Gxtuum.exe
    Remote address:
    212.193.31.8:80
    Request
    POST /3ofn3jf3e2ljk2/index.php HTTP/1.1
    Content-Type: application/x-www-form-urlencoded
    Host: 212.193.31.8
    Content-Length: 158
    Cache-Control: no-cache
    Response
    HTTP/1.1 200 OK
    Date: Sun, 22 Dec 2024 02:08:07 GMT
    Server: Apache/2.4.58 (Ubuntu)
    Content-Length: 7
    Content-Type: text/html; charset=UTF-8
  • flag-us
    DNS
    74.32.126.40.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    74.32.126.40.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    95.221.229.192.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    95.221.229.192.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    8.31.193.212.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    8.31.193.212.in-addr.arpa
    IN PTR
    Response
    8.31.193.212.in-addr.arpa
    IN PTR
    ice-cream-strawberryaezanetwork
  • flag-us
    DNS
    97.17.167.52.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    97.17.167.52.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    200.163.202.172.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    200.163.202.172.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    206.23.85.13.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    206.23.85.13.in-addr.arpa
    IN PTR
    Response
  • flag-us
    DNS
    14.227.111.52.in-addr.arpa
    Remote address:
    8.8.8.8:53
    Request
    14.227.111.52.in-addr.arpa
    IN PTR
    Response
  • 212.193.31.8:80
    http://212.193.31.8/3ofn3jf3e2ljk2/index.php
    http
    Gxtuum.exe
    1.1kB
    521 B
    14
    5

    HTTP Request

    POST http://212.193.31.8/3ofn3jf3e2ljk2/index.php

    HTTP Response

    200

    HTTP Request

    POST http://212.193.31.8/3ofn3jf3e2ljk2/index.php

    HTTP Response

    200
  • 8.8.8.8:53
    8.8.8.8.in-addr.arpa
    dns
    66 B
    90 B
    1
    1

    DNS Request

    8.8.8.8.in-addr.arpa

  • 8.8.8.8:53
    209.205.72.20.in-addr.arpa
    dns
    72 B
    158 B
    1
    1

    DNS Request

    209.205.72.20.in-addr.arpa

  • 8.8.8.8:53
    172.210.232.199.in-addr.arpa
    dns
    74 B
    128 B
    1
    1

    DNS Request

    172.210.232.199.in-addr.arpa

  • 8.8.8.8:53
    74.32.126.40.in-addr.arpa
    dns
    71 B
    157 B
    1
    1

    DNS Request

    74.32.126.40.in-addr.arpa

  • 8.8.8.8:53
    95.221.229.192.in-addr.arpa
    dns
    73 B
    144 B
    1
    1

    DNS Request

    95.221.229.192.in-addr.arpa

  • 8.8.8.8:53
    8.31.193.212.in-addr.arpa
    dns
    71 B
    118 B
    1
    1

    DNS Request

    8.31.193.212.in-addr.arpa

  • 8.8.8.8:53
    97.17.167.52.in-addr.arpa
    dns
    71 B
    145 B
    1
    1

    DNS Request

    97.17.167.52.in-addr.arpa

  • 8.8.8.8:53
    200.163.202.172.in-addr.arpa
    dns
    74 B
    160 B
    1
    1

    DNS Request

    200.163.202.172.in-addr.arpa

  • 8.8.8.8:53
    206.23.85.13.in-addr.arpa
    dns
    71 B
    145 B
    1
    1

    DNS Request

    206.23.85.13.in-addr.arpa

  • 8.8.8.8:53
    14.227.111.52.in-addr.arpa
    dns
    72 B
    158 B
    1
    1

    DNS Request

    14.227.111.52.in-addr.arpa

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\e458d263c0\Gxtuum.exe

    Filesize

    429KB

    MD5

    51ff79b406cb223dd49dd4c947ec97b0

    SHA1

    b9b0253480a1b6cbdd673383320fecae5efb3dce

    SHA256

    2e3a5dfa44d59681a60d78b8b08a1af3878d8e270c02d7e31a0876a85eb42a7e

    SHA512

    c2b8d15b0dc1b0846f39ce007be2deb41d5b6ae76af90d618f29da8691ed987c42f3c270f0ea7f4d10cbd2d3877118f4133803c9c965b6ff236ff8cfafd9367c

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