Resubmissions

13-01-2025 01:17

250113-bnqd4a1mgp 10

12-01-2025 12:38

250112-pt27qssmew 10

11-01-2025 05:37

250111-gbhrdawrds 10

Analysis

  • max time kernel
    896s
  • max time network
    438s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-01-2025 12:38

General

  • Target

    e1e6a513abf55583458cd88ec8b7af9ce2a60d169526b0e6a31183a7688b8480.exe

  • Size

    760KB

  • MD5

    d2b8506820fe3c39b6b5e891170f3451

  • SHA1

    30f6fa21f06d99b0254fa1ff387c45921317eda7

  • SHA256

    e1e6a513abf55583458cd88ec8b7af9ce2a60d169526b0e6a31183a7688b8480

  • SHA512

    15b10c694ff797b8ffbcde18752c2df2d16f961d367794df7f8932bb5bc861faef9984b6b780910eb28c5e1caaa302a0d39d9ca44fb988e84a232d24b7f28781

  • SSDEEP

    12288:YjlIpHtMPku+l0CPPoJts5Pic17D44ehsA4iFMZUiqrbA8yJNB:YjlIhSPd+pWtAPic17Dehx442B

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/bot6331768257:AAE1Rrc3F4A-nTJkfXEukNBriTate8i72L8/sendMessage?chat_id=5287158069

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#.

  • Asyncrat family
  • StormKitty

    StormKitty is an open source info stealer written in C#.

  • StormKitty payload 1 IoCs
  • Stormkitty family
  • Reads user/profile data of web browsers 3 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 2 IoCs

    Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 30 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e1e6a513abf55583458cd88ec8b7af9ce2a60d169526b0e6a31183a7688b8480.exe
    C:\Users\Admin\AppData\Local\Temp\e1e6a513abf55583458cd88ec8b7af9ce2a60d169526b0e6a31183a7688b8480.exe cmd /c %SIGILL% "SIGTERM|DELETE|SIGKILL"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:824
    • C:\Users\Admin\AppData\Local\Temp\e1e6a513abf55583458cd88ec8b7af9ce2a60d169526b0e6a31183a7688b8480.exe
      "C:\Users\Admin\AppData\Local\Temp\e1e6a513abf55583458cd88ec8b7af9ce2a60d169526b0e6a31183a7688b8480.exe"
      2⤵
        PID:4468
      • C:\Users\Admin\AppData\Local\Temp\e1e6a513abf55583458cd88ec8b7af9ce2a60d169526b0e6a31183a7688b8480.exe
        "C:\Users\Admin\AppData\Local\Temp\e1e6a513abf55583458cd88ec8b7af9ce2a60d169526b0e6a31183a7688b8480.exe"
        2⤵
        • Drops desktop.ini file(s)
        • System Location Discovery: System Language Discovery
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1576
        • C:\Windows\SysWOW64\cmd.exe
          "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
          3⤵
          • System Location Discovery: System Language Discovery
          • System Network Configuration Discovery: Wi-Fi Discovery
          • Suspicious use of WriteProcessMemory
          PID:3200
          • C:\Windows\SysWOW64\chcp.com
            chcp 65001
            4⤵
            • System Location Discovery: System Language Discovery
            PID:2416
          • C:\Windows\SysWOW64\netsh.exe
            netsh wlan show profile
            4⤵
            • Event Triggered Execution: Netsh Helper DLL
            • System Location Discovery: System Language Discovery
            • System Network Configuration Discovery: Wi-Fi Discovery
            PID:4680
          • C:\Windows\SysWOW64\findstr.exe
            findstr All
            4⤵
            • System Location Discovery: System Language Discovery
            PID:2556
        • C:\Windows\SysWOW64\cmd.exe
          "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3624
          • C:\Windows\SysWOW64\chcp.com
            chcp 65001
            4⤵
            • System Location Discovery: System Language Discovery
            PID:4976
          • C:\Windows\SysWOW64\netsh.exe
            netsh wlan show networks mode=bssid
            4⤵
            • Event Triggered Execution: Netsh Helper DLL
            • System Location Discovery: System Language Discovery
            PID:1168

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\e1e6a513abf55583458cd88ec8b7af9ce2a60d169526b0e6a31183a7688b8480.exe.log

      Filesize

      1KB

      MD5

      8ec831f3e3a3f77e4a7b9cd32b48384c

      SHA1

      d83f09fd87c5bd86e045873c231c14836e76a05c

      SHA256

      7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

      SHA512

      26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

    • C:\Users\Admin\AppData\Local\dfb609e2a7ae0b0fab490ff79f15c6f7\msgid.dat

      Filesize

      1B

      MD5

      cfcd208495d565ef66e7dff9f98764da

      SHA1

      b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

      SHA256

      5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

      SHA512

      31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

    • C:\Users\Admin\AppData\Local\eed2bd628da1c2f6ff9a0b2cbae35763\Admin@HGNBWBGW_en-US\Browsers\Firefox\Bookmarks.txt

      Filesize

      105B

      MD5

      2e9d094dda5cdc3ce6519f75943a4ff4

      SHA1

      5d989b4ac8b699781681fe75ed9ef98191a5096c

      SHA256

      c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

      SHA512

      d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

    • C:\Users\Admin\AppData\Local\eed2bd628da1c2f6ff9a0b2cbae35763\Admin@HGNBWBGW_en-US\System\Process.txt

      Filesize

      4KB

      MD5

      25246520519d5055de12e2baaa38ac32

      SHA1

      63e8ed96ef8f4ff6163bba57956ec15cc14d2571

      SHA256

      7be6fb25a4f212520d3fb4f7f6f312187f238081fbc2f9d81bdaad98550733c9

      SHA512

      904dadc95cefe5fac3b2fabf8776325d3a1600e14939145e28841857dac8f9eca232fed84cf460e475bc2dd475befb768557b2691fe8b142206bec5af3386c43

    • memory/824-8-0x0000000075350000-0x0000000075B00000-memory.dmp

      Filesize

      7.7MB

    • memory/824-5-0x0000000005380000-0x000000000538A000-memory.dmp

      Filesize

      40KB

    • memory/824-6-0x00000000057B0000-0x00000000057D6000-memory.dmp

      Filesize

      152KB

    • memory/824-7-0x000000007535E000-0x000000007535F000-memory.dmp

      Filesize

      4KB

    • memory/824-4-0x0000000075350000-0x0000000075B00000-memory.dmp

      Filesize

      7.7MB

    • memory/824-9-0x0000000004E00000-0x0000000004E76000-memory.dmp

      Filesize

      472KB

    • memory/824-10-0x000000000C6A0000-0x000000000C73C000-memory.dmp

      Filesize

      624KB

    • memory/824-3-0x00000000053C0000-0x0000000005452000-memory.dmp

      Filesize

      584KB

    • memory/824-0-0x000000007535E000-0x000000007535F000-memory.dmp

      Filesize

      4KB

    • memory/824-2-0x0000000005A30000-0x0000000005FD4000-memory.dmp

      Filesize

      5.6MB

    • memory/824-1-0x00000000008E0000-0x00000000009A4000-memory.dmp

      Filesize

      784KB

    • memory/824-16-0x0000000075350000-0x0000000075B00000-memory.dmp

      Filesize

      7.7MB

    • memory/1576-14-0x0000000075350000-0x0000000075B00000-memory.dmp

      Filesize

      7.7MB

    • memory/1576-17-0x0000000005190000-0x00000000051F6000-memory.dmp

      Filesize

      408KB

    • memory/1576-117-0x0000000075350000-0x0000000075B00000-memory.dmp

      Filesize

      7.7MB

    • memory/1576-15-0x0000000075350000-0x0000000075B00000-memory.dmp

      Filesize

      7.7MB

    • memory/1576-162-0x0000000075350000-0x0000000075B00000-memory.dmp

      Filesize

      7.7MB

    • memory/1576-163-0x0000000075350000-0x0000000075B00000-memory.dmp

      Filesize

      7.7MB

    • memory/1576-168-0x0000000005E70000-0x0000000005E7A000-memory.dmp

      Filesize

      40KB

    • memory/1576-11-0x0000000000400000-0x0000000000432000-memory.dmp

      Filesize

      200KB

    • memory/1576-174-0x0000000075350000-0x0000000075B00000-memory.dmp

      Filesize

      7.7MB