Resubmissions

13/01/2025, 01:07

250113-bg171syjbs 10

12/01/2025, 12:47

250112-pz9h1avpfj 10

10/01/2025, 14:48

250110-r6gsnsxmd1 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
    13/01/2025, 01:07

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 28 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 29 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:4376
    • 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:2112
      • 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:3008
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:4636
        • 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:1844
        • C:\Windows\SysWOW64\findstr.exe
          findstr All
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2576
      • 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:1084
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:744
        • 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:5052

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\8021b00d6f678d9c214b48708e90550c\Admin@HGNBWBGW_en-US\Browsers\Firefox\Bookmarks.txt

    Filesize

    105B

    MD5

    2e9d094dda5cdc3ce6519f75943a4ff4

    SHA1

    5d989b4ac8b699781681fe75ed9ef98191a5096c

    SHA256

    c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

    SHA512

    d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

  • C:\Users\Admin\AppData\Local\8021b00d6f678d9c214b48708e90550c\Admin@HGNBWBGW_en-US\System\Process.txt

    Filesize

    4KB

    MD5

    6df56aebe4c4f22f89b13f6fb0f41c55

    SHA1

    3791c272fc1f361d7cc3f341bbbc7aae7d92c4a9

    SHA256

    d105e8389c20a3ca74640acd1406de72f53ba7ab0df7e8bfc938a0d5fd91565d

    SHA512

    6033a9f8e816d9ecb7f3bbb6cbecf20b2130a9b7813a16719997efd172ee1c9d8cd15c652038c10230a208828a5d7d3b6543979c66af37983b8c63cd56fe1b0d

  • C:\Users\Admin\AppData\Local\858b037c9991c1287bcbc54bdc9c6d9d\msgid.dat

    Filesize

    1B

    MD5

    cfcd208495d565ef66e7dff9f98764da

    SHA1

    b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

    SHA256

    5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

    SHA512

    31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

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

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • memory/2112-14-0x00000000752D0000-0x0000000075A80000-memory.dmp

    Filesize

    7.7MB

  • memory/2112-174-0x00000000752D0000-0x0000000075A80000-memory.dmp

    Filesize

    7.7MB

  • memory/2112-168-0x0000000005ED0000-0x0000000005EDA000-memory.dmp

    Filesize

    40KB

  • memory/2112-165-0x00000000752D0000-0x0000000075A80000-memory.dmp

    Filesize

    7.7MB

  • memory/2112-162-0x00000000752D0000-0x0000000075A80000-memory.dmp

    Filesize

    7.7MB

  • memory/2112-161-0x00000000752D0000-0x0000000075A80000-memory.dmp

    Filesize

    7.7MB

  • memory/2112-17-0x0000000005140000-0x00000000051A6000-memory.dmp

    Filesize

    408KB

  • memory/2112-11-0x0000000000400000-0x0000000000432000-memory.dmp

    Filesize

    200KB

  • memory/2112-16-0x00000000752D0000-0x0000000075A80000-memory.dmp

    Filesize

    7.7MB

  • memory/4376-9-0x0000000004870000-0x00000000048E6000-memory.dmp

    Filesize

    472KB

  • memory/4376-15-0x00000000752D0000-0x0000000075A80000-memory.dmp

    Filesize

    7.7MB

  • memory/4376-0-0x00000000752DE000-0x00000000752DF000-memory.dmp

    Filesize

    4KB

  • memory/4376-10-0x000000000C1D0000-0x000000000C26C000-memory.dmp

    Filesize

    624KB

  • memory/4376-3-0x0000000004EB0000-0x0000000004F42000-memory.dmp

    Filesize

    584KB

  • memory/4376-2-0x0000000005460000-0x0000000005A04000-memory.dmp

    Filesize

    5.6MB

  • memory/4376-4-0x00000000752D0000-0x0000000075A80000-memory.dmp

    Filesize

    7.7MB

  • memory/4376-8-0x00000000752D0000-0x0000000075A80000-memory.dmp

    Filesize

    7.7MB

  • memory/4376-7-0x00000000752DE000-0x00000000752DF000-memory.dmp

    Filesize

    4KB

  • memory/4376-6-0x0000000005010000-0x0000000005036000-memory.dmp

    Filesize

    152KB

  • memory/4376-1-0x00000000003C0000-0x0000000000484000-memory.dmp

    Filesize

    784KB

  • memory/4376-5-0x0000000004E60000-0x0000000004E6A000-memory.dmp

    Filesize

    40KB