Analysis

  • max time kernel
    60s
  • max time network
    53s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    25/03/2025, 19:09

General

  • Target

    8eb0decf8260bff5514cdae9f536b7af282c514d2bed4770ce887ac86d767196.exe

  • Size

    34.8MB

  • MD5

    cb0a22d05978b2e41a38dbc0b8e18519

  • SHA1

    c07e0f474595ed1bf9a040b7f72902e32d83cd1a

  • SHA256

    8eb0decf8260bff5514cdae9f536b7af282c514d2bed4770ce887ac86d767196

  • SHA512

    c92a79e3ed02756d38150edf493cb4df4a61537594bc6c8b926c058a20be4d8041d1e360e8649d2ce2969388f5856fe43d54baf15438bd094df4e672e0faddf8

  • SSDEEP

    786432:Wb3crXJY6tIHUrznnbjYWtND+rhvviy2BFo0yqPoYmBR73h5ITWb59ZHWdp:WbsrZY0rznn3YWWlvT27Jo5B9RWTWb5c

Malware Config

Extracted

Family

asyncrat

Version

1.0.7 - modded by last

Botnet

Default

C2

letaryzipthone.ddns.net:9899

Mutex

DcRatMutex_qwqdanchun

Attributes
  • delay

    1

  • install

    true

  • install_file

    RuntimeBroker.exe

  • install_folder

    %AppData%

aes.plain

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/bot7375914494:AAFg7abzayPkXsZ-aOwL0bNzXG_Do7nWn34/sendMessage?chat_id=5723422959

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

letaryzipthone.ddns.net:4444

Mutex

2f8a8ccfde8351da368cd6477cb06a99

Attributes
  • reg_key

    2f8a8ccfde8351da368cd6477cb06a99

  • splitter

    |'|'|

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Asyncrat family
  • Njrat family
  • StormKitty

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

  • StormKitty payload 2 IoCs
  • Stormkitty family
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Async RAT payload 3 IoCs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 7 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • 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.

  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Detects Pyinstaller 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 9 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 11 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.

  • Delays execution with timeout.exe 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 16 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\8eb0decf8260bff5514cdae9f536b7af282c514d2bed4770ce887ac86d767196.exe
    "C:\Users\Admin\AppData\Local\Temp\8eb0decf8260bff5514cdae9f536b7af282c514d2bed4770ce887ac86d767196.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:3068
    • C:\Users\Admin\AppData\Roaming\UltimateLogChecker.exe
      "C:\Users\Admin\AppData\Roaming\UltimateLogChecker.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2356
      • C:\Users\Admin\AppData\Roaming\UltimateLogChecker.exe
        "C:\Users\Admin\AppData\Roaming\UltimateLogChecker.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        PID:2444
    • C:\Users\Admin\AppData\Roaming\Client.exe
      "C:\Users\Admin\AppData\Roaming\Client.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1440
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "RuntimeBroker" /tr '"C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe"' & exit
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1976
        • C:\Windows\system32\schtasks.exe
          schtasks /create /f /sc onlogon /rl highest /tn "RuntimeBroker" /tr '"C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe"'
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:864
      • C:\Windows\system32\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpED8A.tmp.bat""
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2628
        • C:\Windows\system32\timeout.exe
          timeout 3
          4⤵
          • Delays execution with timeout.exe
          PID:2016
        • C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe
          "C:\Users\Admin\AppData\Roaming\RuntimeBroker.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:1900
    • C:\Users\Admin\AppData\Roaming\ShellExperienceHost.exe
      "C:\Users\Admin\AppData\Roaming\ShellExperienceHost.exe"
      2⤵
      • Executes dropped EXE
      • 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:2188
      • 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:2668
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2804
        • 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:2684
        • C:\Windows\SysWOW64\findstr.exe
          findstr All
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2812
      • 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:2644
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2712
        • 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:2760
    • C:\Users\Admin\AppData\Roaming\Server.exe
      "C:\Users\Admin\AppData\Roaming\Server.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1032
      • C:\Users\Admin\AppData\Roaming\Shell Infrastructure Host.exe
        "C:\Users\Admin\AppData\Roaming\Shell Infrastructure Host.exe"
        3⤵
        • Drops startup file
        • Executes dropped EXE
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:1716
        • C:\Windows\SysWOW64\netsh.exe
          netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\Shell Infrastructure Host.exe" "Shell Infrastructure Host.exe" ENABLE
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          PID:1036

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\7b9b06d97359a1d6ea9fdf7ca3bd41c9\msgid.dat

    Filesize

    1B

    MD5

    cfcd208495d565ef66e7dff9f98764da

    SHA1

    b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

    SHA256

    5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

    SHA512

    31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

  • C:\Users\Admin\AppData\Local\Temp\_MEI23562\python310.dll

    Filesize

    4.3MB

    MD5

    316ce972b0104d68847ab38aba3de06a

    SHA1

    ca1e227fd7f1cfb1382102320dadef683213024b

    SHA256

    34f0e44a0d089587e1ea48c1cc4c3164a1819c6db27a7c1b746af46d6388c26e

    SHA512

    a11da6590a71d977c62b1c26c275763413f6a455e6d85fa052654d05d845dbbe8122bbd8e0a23887f9873d4291382ebbd5df19674ad2dda1cf0ff3206054939b

  • C:\Users\Admin\AppData\Local\Temp\tmpED8A.tmp.bat

    Filesize

    157B

    MD5

    393eca2caa87c8948c305c071233029b

    SHA1

    e0eaa14061f8d2651a38680581b6786bd60d41b0

    SHA256

    59d0a47a66c66c8a8133ab3592cf9554b87d2adc405a9ca716cd8d5afb899e4b

    SHA512

    138340ae56395c8fb91ddbf5c48dad57a53ccb786ae2ffc76653c3299167feccb653d5db84d768b2037fb3d4f369447d0c4024d0b06064f9ccaafbf28a3c8bb6

  • C:\Users\Admin\AppData\Roaming\Client.exe

    Filesize

    63KB

    MD5

    49f8b45538cd2fa2b2f13a7c98736971

    SHA1

    147e4bfd982902583d320869c32745a1e1ea6f4b

    SHA256

    509495c19a2442b30ded385e32aa696d5e6ee6da45bef081ad2c0c1f4a0c9ac8

    SHA512

    78eeb42a2170ccd44de6593e267b1a22fe2484c9bc1acbcb63c107a95fdd3b0aec655859f0d5cf2522ea73b2227be89ab7a7324249ffaf6a9d91bcf5dcd392d1

  • C:\Users\Admin\AppData\Roaming\Server.exe

    Filesize

    23KB

    MD5

    04265e612f3a7c2328bdcdd28da2ae44

    SHA1

    d0e77cfd68d7585ef53c6755f482f4f3ca08d5d1

    SHA256

    511f7b85ac2b7830278f14c51c8c8bfe400d4764a767189158508cb0246392f5

    SHA512

    c8660324686d8a4db8e526dff943218eba931f3b93ac1b2a58039c2169baf4ec43137e88071f0dff096b49c18e2dc8a2e7bccf5fe0ca9b69dde2356f17b3f9b3

  • C:\Users\Admin\AppData\Roaming\ShellExperienceHost.exe

    Filesize

    175KB

    MD5

    a7e64a526fc947df9acbdebf7e34f094

    SHA1

    820da6a50c70f3e11e03446ed86a9cccec7cd093

    SHA256

    da98da5a5e1e680594895cc513d1ac6245a82ad64b4850f66ead878e0d1e110b

    SHA512

    c6d3143218d027e5df753d30bf56e3d7cb5ad55d82ce6207f3c33d6373266f1e7b24726f2ab5c0c6af7c4a755e7f4930d369a5a7c282a4fd1e47d4b1c32100ef

  • \Users\Admin\AppData\Roaming\UltimateLogChecker.exe

    Filesize

    34.5MB

    MD5

    3bf5ce667dcc119c3371a0206c0f10e7

    SHA1

    ee5e36bba76f79025af13d4285a0759029a89f5b

    SHA256

    690b88e7ae00c04cef2e0aaef3251241f63137b55499d2d6a5b8d0a10e6e69e9

    SHA512

    947d058334fe72cb67fee7fa0ff9989ad1cf0af2cdcaaa784fca39969468ff5008306f32b3e6523dd5865cd8293760bddc91a03bd1391ec8ba9f8fd6885e60e0

  • memory/1032-26-0x0000000000E60000-0x0000000000EA0000-memory.dmp

    Filesize

    256KB

  • memory/1440-25-0x00000000000F0000-0x0000000000106000-memory.dmp

    Filesize

    88KB

  • memory/1900-196-0x0000000000EE0000-0x0000000000EF6000-memory.dmp

    Filesize

    88KB

  • memory/2188-31-0x0000000001140000-0x0000000001172000-memory.dmp

    Filesize

    200KB

  • memory/3068-0-0x000007FEF5AB3000-0x000007FEF5AB4000-memory.dmp

    Filesize

    4KB

  • memory/3068-1-0x0000000001070000-0x0000000003342000-memory.dmp

    Filesize

    34.8MB