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Analysis

  • max time kernel
    146s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230621-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/06/2023, 11:57

General

  • Target

    1006.exe

  • Size

    225KB

  • MD5

    883784a3500e2389e6e1816696dba87b

  • SHA1

    f4364ff100c016d5cf78a3a4e3bedb287555f2ce

  • SHA256

    0373eb783358fbf3b810fe1156efffd5847913c62db0e6c690e802300a5640ab

  • SHA512

    f5d4d508dfeee159d339b9833d8128a6486b866639cd5dcba381b873188c3a6e643961477e723e38d100c3a5b47b0c83499e18504b1a6e5f5e68a73bf01e73f3

  • SSDEEP

    3072:/+STW8djpN6izj8mZwgWDZ5IRN9MBQVahUbBEgDzazaLEV55NlmwXcFOC+UX6+WO:08XN6W8mmgqQMhUbOKEV55NlXkOI

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/bot6154715708:AAHDKp_4g6Ye1lnxUlsJvFSuNl2Zm6A__-E/sendMessage?chat_id=1165040754

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.

  • Drops file in System32 directory 8 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\1006.exe
    "C:\Users\Admin\AppData\Local\Temp\1006.exe"
    1⤵
    • Drops desktop.ini file(s)
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5084
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1192
      • C:\Windows\SysWOW64\chcp.com
        chcp 65001
        3⤵
          PID:3624
        • C:\Windows\SysWOW64\netsh.exe
          netsh wlan show profile
          3⤵
            PID:3224
          • C:\Windows\SysWOW64\findstr.exe
            findstr All
            3⤵
              PID:2040
          • C:\Windows\SysWOW64\cmd.exe
            "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4276
            • C:\Windows\SysWOW64\chcp.com
              chcp 65001
              3⤵
                PID:2300
              • C:\Windows\SysWOW64\netsh.exe
                netsh wlan show networks mode=bssid
                3⤵
                  PID:4316
            • C:\Windows\System32\svchost.exe
              C:\Windows\System32\svchost.exe -k netsvcs -p
              1⤵
              • Drops file in System32 directory
              PID:1876

            Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • C:\Users\Admin\AppData\Local\00339c4758b6a02bbf789851014a1569\msgid.dat

              Filesize

              4B

              MD5

              fa733611ef13bd333ebfbab7eed14b63

              SHA1

              a3fc12f37f04ba3fa82daefe36bd945eee45682f

              SHA256

              d5202cfaa87f58037dbd7143fd3a1336dd15c50d58269d1f6a9dc3ea307dbb53

              SHA512

              c2671da490ca8d57b424e013f8886d43ef64061591a16673c0b355d2326d46ade7fff529a499019af547dc841851af281b97388505cc58c0360b63b9aa2ae10e

            • C:\Users\Admin\AppData\Local\286bbe96ed7078654695404e9c7a0e8e\Admin@HGXAIWVE_en-US\Browsers\Firefox\Bookmarks.txt

              Filesize

              105B

              MD5

              2e9d094dda5cdc3ce6519f75943a4ff4

              SHA1

              5d989b4ac8b699781681fe75ed9ef98191a5096c

              SHA256

              c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

              SHA512

              d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

            • C:\Users\Admin\AppData\Local\286bbe96ed7078654695404e9c7a0e8e\Admin@HGXAIWVE_en-US\System\Process.txt

              Filesize

              4KB

              MD5

              e92bf9c721dae145a350dd4fdd144ef1

              SHA1

              2307fa250244bc419de1dbe3ac561e959ddcb17b

              SHA256

              1f64d3fe94de462aa5d9667758034b2cbae00362bf2cf965099c82049ffcd417

              SHA512

              4d4606cd626f96a5f5d4d9dd19b316391b2c84d1ed992fa04b76b30f8ee3fd89b3d9fe13f5eeac3f319f0030bae22d85153a5f4efa901b17fc48e92191ecee3f

            • memory/5084-273-0x0000000005B00000-0x0000000005B92000-memory.dmp

              Filesize

              584KB

            • memory/5084-201-0x0000000005150000-0x0000000005160000-memory.dmp

              Filesize

              64KB

            • memory/5084-135-0x00000000053D0000-0x0000000005436000-memory.dmp

              Filesize

              408KB

            • memory/5084-133-0x0000000000700000-0x000000000073E000-memory.dmp

              Filesize

              248KB

            • memory/5084-274-0x0000000006770000-0x0000000006D14000-memory.dmp

              Filesize

              5.6MB

            • memory/5084-276-0x0000000005150000-0x0000000005160000-memory.dmp

              Filesize

              64KB

            • memory/5084-279-0x0000000005C30000-0x0000000005C3A000-memory.dmp

              Filesize

              40KB

            • memory/5084-134-0x0000000005150000-0x0000000005160000-memory.dmp

              Filesize

              64KB

            • memory/5084-285-0x0000000006380000-0x0000000006392000-memory.dmp

              Filesize

              72KB

            • memory/5084-309-0x0000000005150000-0x0000000005160000-memory.dmp

              Filesize

              64KB