Resubmissions

13-01-2025 01:07

250113-bgptzs1kbk 10

12-01-2025 12:48

250112-p1vq8sspex 10

10-01-2025 14:37

250110-rzbm3sxkfw 10

Analysis

  • max time kernel
    894s
  • max time network
    443s
  • 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 12:48

General

  • Target

    153a321e178bc28e0f2c6432763bb44fc47b573596387ec241ca45d8775e12af.exe

  • Size

    175KB

  • MD5

    f69889d705f5d72d65661b48535ae1b3

  • SHA1

    4c8f3cf14130e6519339a370bba4527ecb012cde

  • SHA256

    153a321e178bc28e0f2c6432763bb44fc47b573596387ec241ca45d8775e12af

  • SHA512

    a182272541b22dd58d44db506f0c3368fd0e54d0e616d48b6980563eb12d8d9a377bb0d0272c0c2576d36359f10367e27043d3c3106e5d985be0843112fedb3d

  • SSDEEP

    3072:Ke8p6ewdOIwQx76vK/bvTv0cU+lL/dMlZZUZ0b2gT8wARE+WpCc:66ewwIwQJ6vKX0c5MlYZ0b2R

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.

  • 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 8 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 25 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\153a321e178bc28e0f2c6432763bb44fc47b573596387ec241ca45d8775e12af.exe
    C:\Users\Admin\AppData\Local\Temp\153a321e178bc28e0f2c6432763bb44fc47b573596387ec241ca45d8775e12af.exe cmd /c %SIGILL% "SIGTERM|DELETE|SIGKILL"
    1⤵
    • 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:4448
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Wi-Fi Discovery
      • Suspicious use of WriteProcessMemory
      PID:3128
      • C:\Windows\SysWOW64\chcp.com
        chcp 65001
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4860
      • C:\Windows\SysWOW64\netsh.exe
        netsh wlan show profile
        3⤵
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Wi-Fi Discovery
        PID:4852
      • C:\Windows\SysWOW64\findstr.exe
        findstr All
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2196
    • C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4620
      • C:\Windows\SysWOW64\chcp.com
        chcp 65001
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2340
      • C:\Windows\SysWOW64\netsh.exe
        netsh wlan show networks mode=bssid
        3⤵
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        PID:3968

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\4851f241b52c67b0bfd14954771782f3\Admin@GLZCSNLK_en-US\System\Process.txt

    Filesize

    4KB

    MD5

    ef02d533c2a39f05d3192eacb79d7569

    SHA1

    995745bf7b37333e8c6344e1466e1d1da6bacb78

    SHA256

    14a90f838da5cfdcb3d48129a78d1e11aef55c34a02f3c7395f9fe88f87b6b73

    SHA512

    a923219944ca842d39c9e54c2e9a3291af98c3a2d598e8f57d4054387ca5ec92ae21b630b7f8c30aee90906602d50146891027409679c4b487d4d3808ebc759f

  • C:\Users\Admin\AppData\Local\fda0a38000a2af762e53f92d990c653e\msgid.dat

    Filesize

    1B

    MD5

    cfcd208495d565ef66e7dff9f98764da

    SHA1

    b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

    SHA256

    5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

    SHA512

    31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

  • memory/4448-131-0x00000000743F0000-0x0000000074BA0000-memory.dmp

    Filesize

    7.7MB

  • memory/4448-3-0x0000000004DE0000-0x0000000004E46000-memory.dmp

    Filesize

    408KB

  • memory/4448-111-0x00000000743FE000-0x00000000743FF000-memory.dmp

    Filesize

    4KB

  • memory/4448-2-0x00000000743F0000-0x0000000074BA0000-memory.dmp

    Filesize

    7.7MB

  • memory/4448-0-0x00000000743FE000-0x00000000743FF000-memory.dmp

    Filesize

    4KB

  • memory/4448-147-0x00000000743F0000-0x0000000074BA0000-memory.dmp

    Filesize

    7.7MB

  • memory/4448-148-0x0000000005920000-0x00000000059B2000-memory.dmp

    Filesize

    584KB

  • memory/4448-149-0x0000000005F70000-0x0000000006514000-memory.dmp

    Filesize

    5.6MB

  • memory/4448-153-0x0000000005A40000-0x0000000005A4A000-memory.dmp

    Filesize

    40KB

  • memory/4448-1-0x00000000003D0000-0x0000000000402000-memory.dmp

    Filesize

    200KB

  • memory/4448-159-0x00000000743F0000-0x0000000074BA0000-memory.dmp

    Filesize

    7.7MB