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Resubmissions

22/09/2022, 17:11 UTC

220922-vqawzacac6 10

20/09/2022, 13:07 UTC

220920-qct1gachf4 10

Analysis

  • max time kernel
    142s
  • max time network
    52s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    22/09/2022, 17:11 UTC

General

  • Target

    data64_1.exe

  • Size

    159KB

  • MD5

    95749d6bae439efc267962c9bc3cb2d6

  • SHA1

    236763d6a739c9a68350c5e9775ea8723de2a916

  • SHA256

    f464ed5d98af0625c6c4678b916aa465f47a938e1cf4ad3bf5a95d129f8fb5f9

  • SHA512

    3ee8697c54d69b837f0f81979edde35049904d677a849cfcd943d45d2615581cc18e78318e8d5d35e75273d732d6e06545edca7a4000222c766b4d8789a95fc6

  • SSDEEP

    3072:Um/E8k9ZjpIL+zNch12KbAwSaSbJSp8Bb8EG:N/E8k91zz6/t88EG

Malware Config

Extracted

Family

marsstealer

Botnet

Default

C2

gg.gemkan.online/gate.php

Signatures

  • Mars Stealer

    An infostealer written in C++ based on other infostealers.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\data64_1.exe
    "C:\Users\Admin\AppData\Local\Temp\data64_1.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1376
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1376 -s 784
      2⤵
      • Program crash
      PID:524

Network

  • flag-us
    DNS
    gg.gemkan.online
    data64_1.exe
    Remote address:
    8.8.8.8:53
    Request
    gg.gemkan.online
    IN A
    Response
    gg.gemkan.online
    IN A
    203.175.9.27
  • flag-id
    GET
    http://gg.gemkan.online/gate.php
    data64_1.exe
    Remote address:
    203.175.9.27:80
    Request
    GET /gate.php HTTP/1.1
    Host: gg.gemkan.online
    Connection: Keep-Alive
    Cache-Control: no-cache
    Response
    HTTP/1.1 302 Found
    Date: Thu, 22 Sep 2022 17:11:41 GMT
    Server: Apache
    Location: http://gg.gemkan.online/cgi-sys/suspendedpage.cgi
    Content-Length: 233
    Keep-Alive: timeout=5, max=100
    Connection: Keep-Alive
    Content-Type: text/html; charset=iso-8859-1
  • flag-id
    GET
    http://gg.gemkan.online/cgi-sys/suspendedpage.cgi
    data64_1.exe
    Remote address:
    203.175.9.27:80
    Request
    GET /cgi-sys/suspendedpage.cgi HTTP/1.1
    Host: gg.gemkan.online
    Connection: Keep-Alive
    Cache-Control: no-cache
    Response
    HTTP/1.1 200 OK
    Date: Thu, 22 Sep 2022 17:11:41 GMT
    Server: Apache
    Vary: Accept-Encoding
    Keep-Alive: timeout=5, max=99
    Connection: Keep-Alive
    Transfer-Encoding: chunked
    Content-Type: text/html
  • flag-id
    GET
    http://gg.gemkan.online/request
    data64_1.exe
    Remote address:
    203.175.9.27:80
    Request
    GET /request HTTP/1.1
    Host: gg.gemkan.online
    Cache-Control: no-cache
    Response
    HTTP/1.1 302 Found
    Date: Thu, 22 Sep 2022 17:11:41 GMT
    Server: Apache
    Location: http://gg.gemkan.online/cgi-sys/suspendedpage.cgi
    Content-Length: 233
    Content-Type: text/html; charset=iso-8859-1
  • flag-id
    GET
    http://gg.gemkan.online/cgi-sys/suspendedpage.cgi
    data64_1.exe
    Remote address:
    203.175.9.27:80
    Request
    GET /cgi-sys/suspendedpage.cgi HTTP/1.1
    Host: gg.gemkan.online
    Cache-Control: no-cache
    Connection: Keep-Alive
    Response
    HTTP/1.1 200 OK
    Date: Thu, 22 Sep 2022 17:11:42 GMT
    Server: Apache
    Vary: Accept-Encoding
    Keep-Alive: timeout=5, max=97
    Connection: Keep-Alive
    Transfer-Encoding: chunked
    Content-Type: text/html
  • 203.175.9.27:80
    http://gg.gemkan.online/cgi-sys/suspendedpage.cgi
    http
    data64_1.exe
    853 B
    2.2kB
    10
    15

    HTTP Request

    GET http://gg.gemkan.online/gate.php

    HTTP Response

    302

    HTTP Request

    GET http://gg.gemkan.online/cgi-sys/suspendedpage.cgi

    HTTP Response

    200

    HTTP Request

    GET http://gg.gemkan.online/request

    HTTP Response

    302

    HTTP Request

    GET http://gg.gemkan.online/cgi-sys/suspendedpage.cgi

    HTTP Response

    200
  • 8.8.8.8:53
    gg.gemkan.online
    dns
    data64_1.exe
    62 B
    78 B
    1
    1

    DNS Request

    gg.gemkan.online

    DNS Response

    203.175.9.27

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1376-54-0x0000000000400000-0x000000000043D000-memory.dmp

    Filesize

    244KB

  • memory/1376-55-0x0000000075091000-0x0000000075093000-memory.dmp

    Filesize

    8KB

  • memory/1376-57-0x0000000000400000-0x000000000043D000-memory.dmp

    Filesize

    244KB

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