Analysis

  • max time kernel
    148s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-08-2023 16:13

General

  • Target

    worldwind.exe

  • Size

    175KB

  • MD5

    fafd2fee2145a1c0cff13d372694aa11

  • SHA1

    dd1e28ddfacc273e94fa34846db572e601248db1

  • SHA256

    b9602df895cfa8ceb21f3b08dc54ba282fc257d8446bdc3e8a8e5ae6c9e78ef1

  • SHA512

    9f7acc21019fb734d8eccdfbe6930e31148227a633d0f1f4e36cfb36c41e35e0a2723b4cfd93bcdf20de851397c8d33e0062c1068e2ff6ebcb37aea23f616447

  • SSDEEP

    3072:Ee8p6ewdOIwQx76vK/bvTv0cU+lL/dMlZZUZ0b2gTJwARE+WpCc:g6ewwIwQJ6vKX0c5MlYZ0b2i

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

https://api.telegram.org/bot5680540790:AAEdId7f5SV2tnT6kXxK3ECoPzVFCgY9fQs/sendMessage?chat_id=6186135789

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • StormKitty

    StormKitty is an open source info stealer written in C#.

  • StormKitty payload 1 IoCs
  • Async RAT payload 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Drops desktop.ini file(s) 8 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Looks up external IP address via web service 1 IoCs

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

  • Looks up geolocation information via web service

    Uses a legitimate geolocation service to find the infected system's geolocation info.

  • Suspicious behavior: EnumeratesProcesses 25 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\worldwind.exe
    "C:\Users\Admin\AppData\Local\Temp\worldwind.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2656
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:5108
      • C:\Windows\SysWOW64\chcp.com
        chcp 65001
        3⤵
          PID:968
        • C:\Windows\SysWOW64\netsh.exe
          netsh wlan show profile
          3⤵
            PID:1724
          • C:\Windows\SysWOW64\findstr.exe
            findstr All
            3⤵
              PID:2460
          • C:\Windows\SysWOW64\cmd.exe
            "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:5096
            • C:\Windows\SysWOW64\chcp.com
              chcp 65001
              3⤵
                PID:4648
              • C:\Windows\SysWOW64\netsh.exe
                netsh wlan show networks mode=bssid
                3⤵
                  PID:3808

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • C:\Users\Admin\AppData\Local\8d12af14ca776079b8c90d07c7f612c5\Admin@MNHMTTDP_en-US\Browsers\Firefox\Bookmarks.txt

              Filesize

              105B

              MD5

              2e9d094dda5cdc3ce6519f75943a4ff4

              SHA1

              5d989b4ac8b699781681fe75ed9ef98191a5096c

              SHA256

              c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

              SHA512

              d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

            • C:\Users\Admin\AppData\Local\8d12af14ca776079b8c90d07c7f612c5\Admin@MNHMTTDP_en-US\System\Process.txt

              Filesize

              4KB

              MD5

              ac9cb1df9d33693cdd07e86904ca2640

              SHA1

              89627e50d0e12c92a0eb9f86773548f3c4fc9487

              SHA256

              26d83d9826e1611f9d2c5c502306e9ef3b94016ade5cf35b90e2b83f948e3631

              SHA512

              81c7344132365ba3aed5d6496315e9ee0a7f587ac6142ca9f34f6fa9cccb3ad7dd591e52cd5de4bcc41efa1969b60502245fd5ea79ce0b7f20ed651236e29e60

            • C:\Users\Admin\AppData\Local\deb0abca1089d7577428c4dec4abce7f\msgid.dat

              Filesize

              1B

              MD5

              cfcd208495d565ef66e7dff9f98764da

              SHA1

              b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

              SHA256

              5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

              SHA512

              31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

            • memory/2656-136-0x0000000005670000-0x00000000056D6000-memory.dmp

              Filesize

              408KB

            • memory/2656-202-0x0000000074830000-0x0000000074FE0000-memory.dmp

              Filesize

              7.7MB

            • memory/2656-210-0x00000000055F0000-0x0000000005600000-memory.dmp

              Filesize

              64KB

            • memory/2656-133-0x0000000000B40000-0x0000000000B72000-memory.dmp

              Filesize

              200KB

            • memory/2656-284-0x00000000055F0000-0x0000000005600000-memory.dmp

              Filesize

              64KB

            • memory/2656-285-0x0000000005FB0000-0x0000000006042000-memory.dmp

              Filesize

              584KB

            • memory/2656-286-0x0000000006B30000-0x00000000070D4000-memory.dmp

              Filesize

              5.6MB

            • memory/2656-290-0x0000000006070000-0x000000000607A000-memory.dmp

              Filesize

              40KB

            • memory/2656-135-0x00000000055F0000-0x0000000005600000-memory.dmp

              Filesize

              64KB

            • memory/2656-296-0x0000000006640000-0x0000000006652000-memory.dmp

              Filesize

              72KB

            • memory/2656-134-0x0000000074830000-0x0000000074FE0000-memory.dmp

              Filesize

              7.7MB

            • memory/2656-321-0x00000000055F0000-0x0000000005600000-memory.dmp

              Filesize

              64KB