Analysis

  • max time kernel
    60s
  • max time network
    21s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    04-01-2025 19:04

General

  • Target

    187ae0cb45f21b2fee6eacaf297bd965acdcd3822b3d0cd09602add1cf03cb40.exe

  • Size

    518KB

  • MD5

    f249f6f4f9d8c37b6eaa483e188b844e

  • SHA1

    fb2bc26dafdf08f306307c201575a2babf3046e7

  • SHA256

    187ae0cb45f21b2fee6eacaf297bd965acdcd3822b3d0cd09602add1cf03cb40

  • SHA512

    1e2ba01ad35fb34d4ff3af4acbe4f62c543a27db8e189eec91fcced1128f28999391efffbfcc2af55bbef6eb37004b1198f852b03605ce3eb29e0cb11fc052ec

  • SSDEEP

    6144:fSncRljDubaBBOBIIj6HLLYLCYJqvc1DiFGPNv67EA7bYiiRGbNGfAJDubaBBOBY:a4IbaMUbHiRcNqnbaExhNbxykvgItw

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/bot7549728726:AAHzXc-gyGOx-FQMI8AFOLjShmKqbPw-tWU/sendMessage?chat_id=6759888267

https://api.telegram.org/bot7289188591:AAFXBqcWy9p_LgUKTwd-Pcl7lvzedUGWL1E/sendMessage?chat_id=8079461533

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain
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 4 IoCs
  • Stormkitty family
  • Async RAT payload 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • 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) 10 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.

  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 12 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 19 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 4 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 4 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\187ae0cb45f21b2fee6eacaf297bd965acdcd3822b3d0cd09602add1cf03cb40.exe
    "C:\Users\Admin\AppData\Local\Temp\187ae0cb45f21b2fee6eacaf297bd965acdcd3822b3d0cd09602add1cf03cb40.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1796
    • C:\Users\Admin\AppData\Local\Temp\DXX.EXE
      "C:\Users\Admin\AppData\Local\Temp\DXX.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:2652
      • 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:2188
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2748
        • 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:564
        • C:\Windows\SysWOW64\findstr.exe
          findstr All
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2336
      • 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:2512
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1440
        • 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:2072
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /f /sc ONLOGON /RL HIGHEST /tn "Chrome Update" /tr "C:\Users\Admin\AppData\Local\Temp\DXX.EXE"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1688
    • C:\Users\Admin\AppData\Local\Temp\SVCHOST.EXE
      "C:\Users\Admin\AppData\Local\Temp\SVCHOST.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:1264
      • 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:1700
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2856
        • 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:1804
        • C:\Windows\SysWOW64\findstr.exe
          findstr All
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2280
      • 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:2196
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2728
        • 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:2348
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /f /sc ONLOGON /RL HIGHEST /tn "Chrome Update" /tr "C:\Users\Admin\AppData\Local\Temp\SVCHOST.EXE"
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2896

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\places.raw

    Filesize

    5.0MB

    MD5

    4c6b96a63ce26be74c69ac9aba134c92

    SHA1

    96c525141582bd9be736a1a664290e10dbf746cc

    SHA256

    0cd0934c0d26e45d6a878470ff659ff53a3800da396065e129c249273a8d6fff

    SHA512

    719180cd3767657637507e37038f9ff63b652f34e6fc22a82ac025cbe91df2a984cb6fec9111e8894c9a89d911a34049574ef2991aebecdecf6097420111bc52

  • C:\Users\Admin\AppData\Local\Temp\tmpD1D0.tmp.dat

    Filesize

    92KB

    MD5

    5a11d4c52a76804780cbb414b2595bdb

    SHA1

    14c89a2283c41b10ce8f1576404e1541c04a8125

    SHA256

    e1b3260b2607c6a5fcf91575d1de278deceaf4e5f9f0530a3782c6d9567749d8

    SHA512

    0bffe811cbba5278d39e20b66a5c4770e3855d1f5cbd45161e8ad304b78da73f555a3c42a198378efab3dfc81f384fdaefc6cbb893a708c7e2649a89fdd11762

  • C:\Users\Admin\AppData\Local\Temp\tmpD1E1.tmp.dat

    Filesize

    148KB

    MD5

    90a1d4b55edf36fa8b4cc6974ed7d4c4

    SHA1

    aba1b8d0e05421e7df5982899f626211c3c4b5c1

    SHA256

    7cf3e9e8619904e72ea6608cc43e9b6c9f8aa2af02476f60c2b3daf33075981c

    SHA512

    ea0838be754e1258c230111900c5937d2b0788f90bbf7c5f82b2ceda7868e50afb86c301f313267eaa912778da45755560b5434885521bf915967a7863922ae2

  • C:\Users\Admin\AppData\Local\c8c682ce3a5f31eff676f37a3ca575e2\msgid.dat

    Filesize

    1B

    MD5

    cfcd208495d565ef66e7dff9f98764da

    SHA1

    b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

    SHA256

    5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

    SHA512

    31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

  • C:\Users\Admin\AppData\Local\d62581080bf849b6ce23e848ef1d547d\Admin@VORHPBAB_en-US\Browsers\Firefox\Bookmarks.txt

    Filesize

    105B

    MD5

    2e9d094dda5cdc3ce6519f75943a4ff4

    SHA1

    5d989b4ac8b699781681fe75ed9ef98191a5096c

    SHA256

    c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

    SHA512

    d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

  • \Users\Admin\AppData\Local\Temp\DXX.EXE

    Filesize

    232KB

    MD5

    dc72ad72d4a83486477121eb6679ce77

    SHA1

    155d45d74ad3c17fc8186584c1d20fa0f8ef80e6

    SHA256

    a43d0af6d5d0ec78f6f9be2f5ee6acc80d3b3244a85c2a15ead0ca32f7e9fe43

    SHA512

    a77e0f65fdc93b07119e34265391886e095108349bdbab0440feb2ed49b3aef504337a9aab525b2265da488b3bbc5e46772c8a3da69547487b2da9000231b4ca

  • \Users\Admin\AppData\Local\Temp\SVCHOST.EXE

    Filesize

    232KB

    MD5

    905d8f8b1d16ce5c63f6a806e1efeb98

    SHA1

    75c8c39c0bb5e48f53f1585a9cefa03a997dc680

    SHA256

    78dcc1bbf29a5d6e5cb57506f273d41e8629232bc733bb4126955f40f60f63f4

    SHA512

    f0c00f773909bc0b04e638196f902f314d75000e04ed7bc72b3d9b35c4278de3f18d7e02aaf85e70207860aa3d920d167c62e14bbdf9289481bcf516ebf87a5f

  • memory/1264-163-0x00000000749C0000-0x00000000750AE000-memory.dmp

    Filesize

    6.9MB

  • memory/1264-15-0x00000000012C0000-0x0000000001300000-memory.dmp

    Filesize

    256KB

  • memory/1264-17-0x00000000749C0000-0x00000000750AE000-memory.dmp

    Filesize

    6.9MB

  • memory/1264-165-0x00000000749C0000-0x00000000750AE000-memory.dmp

    Filesize

    6.9MB

  • memory/1264-19-0x00000000749C0000-0x00000000750AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2652-16-0x0000000000C50000-0x0000000000C90000-memory.dmp

    Filesize

    256KB

  • memory/2652-162-0x00000000749CE000-0x00000000749CF000-memory.dmp

    Filesize

    4KB

  • memory/2652-164-0x00000000749C0000-0x00000000750AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2652-18-0x00000000749C0000-0x00000000750AE000-memory.dmp

    Filesize

    6.9MB

  • memory/2652-14-0x00000000749CE000-0x00000000749CF000-memory.dmp

    Filesize

    4KB