Analysis

  • max time kernel
    147s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    09-08-2023 16:15

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
  • 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.

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\worldwind.exe
    "C:\Users\Admin\AppData\Local\Temp\worldwind.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2796
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2232
      • C:\Windows\SysWOW64\chcp.com
        chcp 65001
        3⤵
          PID:2248
        • C:\Windows\SysWOW64\netsh.exe
          netsh wlan show profile
          3⤵
            PID:1052
          • C:\Windows\SysWOW64\findstr.exe
            findstr All
            3⤵
              PID:692
          • C:\Windows\SysWOW64\cmd.exe
            "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3028
            • C:\Windows\SysWOW64\chcp.com
              chcp 65001
              3⤵
                PID:3068
              • C:\Windows\SysWOW64\netsh.exe
                netsh wlan show networks mode=bssid
                3⤵
                  PID:2816

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

              Filesize

              344B

              MD5

              cca7c51abdb5eb40b98dd694b609de41

              SHA1

              1406b480deae05d35b3b567ce83c11184afb1f11

              SHA256

              d46540e170ae06c525a7cf49f7bcdf75b5bc640f5a94721cc8253129763110be

              SHA512

              71df4488b9016108ebedf252b3f4658c3701a5c2f248532472e813ec10e88cbb6e862ebdebeba0cad59d85b8f8fc65a2f16344f4097afc08991aaa2c62378b17

            • C:\Users\Admin\AppData\Local\Temp\CabD246.tmp

              Filesize

              62KB

              MD5

              3ac860860707baaf32469fa7cc7c0192

              SHA1

              c33c2acdaba0e6fa41fd2f00f186804722477639

              SHA256

              d015145d551ecd14916270efad773bbc9fd57fad2228d2c24559f696c961d904

              SHA512

              d62ad2408c969a95550fb87efda50f988770ba5e39972041bf85924275baf156b8bec309ecc6409e5acdd37ec175dea40eff921ab58933b5b5b5d35a6147567c

            • C:\Users\Admin\AppData\Local\Temp\TarD304.tmp

              Filesize

              164KB

              MD5

              4ff65ad929cd9a367680e0e5b1c08166

              SHA1

              c0af0d4396bd1f15c45f39d3b849ba444233b3a2

              SHA256

              c8733c93cc5aaf5ca206d06af22ee8dbdec764fb5085019a6a9181feb9dfdee6

              SHA512

              f530dc0d024a5a3b8903ffaaa41b608a5ccdd6da4ba1949f2c2e55a9fca475fec5c8d2119b5763cabe7ef1c3788fb9dcac621869db51d65b1d83cfe404fb4c27

            • C:\Users\Admin\AppData\Local\b7f186f541a1f48a930cf97e81cb8399\msgid.dat

              Filesize

              1B

              MD5

              cfcd208495d565ef66e7dff9f98764da

              SHA1

              b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

              SHA256

              5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

              SHA512

              31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

            • memory/2796-54-0x00000000011E0000-0x0000000001212000-memory.dmp

              Filesize

              200KB

            • memory/2796-55-0x0000000074280000-0x000000007496E000-memory.dmp

              Filesize

              6.9MB

            • memory/2796-56-0x00000000010B0000-0x00000000010F0000-memory.dmp

              Filesize

              256KB

            • memory/2796-123-0x0000000074280000-0x000000007496E000-memory.dmp

              Filesize

              6.9MB

            • memory/2796-124-0x00000000010B0000-0x00000000010F0000-memory.dmp

              Filesize

              256KB

            • memory/2796-126-0x00000000010B0000-0x00000000010F0000-memory.dmp

              Filesize

              256KB

            • memory/2796-195-0x00000000010B0000-0x00000000010F0000-memory.dmp

              Filesize

              256KB