Analysis

  • max time kernel
    55s
  • max time network
    37s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    13-10-2024 19:32

General

  • Target

    20f0f8622c856bf79b4b4b740c4dbe961a04dc7a290d9375093eb0e7c01c9c6f.exe

  • Size

    741KB

  • MD5

    49a235f58aa7c4ee39535a7f81e67bea

  • SHA1

    39a0ff2c70e01ec04d4ea45b19ccad37615446d9

  • SHA256

    20f0f8622c856bf79b4b4b740c4dbe961a04dc7a290d9375093eb0e7c01c9c6f

  • SHA512

    d53fe2cd7e49a844a8dfd09f8dd673e85fd50670b36d2668dffa5449d3e49a6ae369ddf1082097bd3a93d8a1b214a2028b0a2ea3d06c758690a25b16ae5578e3

  • SSDEEP

    12288:Z0nyfXuIBDtfu3d34SafixO5Sizm4qT9c4jF0ju+mZMk:Wny/f9utISauqU9cU4u+uZ

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/bot7386776614:AAE49J6grELkpFfFaKkddIuaU586DDiQPYY/sendMessage?chat_id=5373795817

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#.

  • StormKitty

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

  • StormKitty payload 2 IoCs
  • Async RAT payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 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) 14 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 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.

  • Drops file in Program Files directory 7 IoCs
  • 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 17 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.

  • Suspicious behavior: EnumeratesProcesses 46 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 48 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\20f0f8622c856bf79b4b4b740c4dbe961a04dc7a290d9375093eb0e7c01c9c6f.exe
    "C:\Users\Admin\AppData\Local\Temp\20f0f8622c856bf79b4b4b740c4dbe961a04dc7a290d9375093eb0e7c01c9c6f.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1224
    • C:\Program Files (x86)\New\Server.exe
      "C:\Program Files (x86)\New\Server.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:3564
      • 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:5112
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:3476
        • 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:3736
        • C:\Windows\SysWOW64\findstr.exe
          findstr All
          4⤵
          • System Location Discovery: System Language Discovery
          PID:3108
      • 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:3204
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:4728
        • 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:1956
    • C:\Program Files (x86)\New\Server.exe
      "C:\Program Files (x86)\New\Server.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:5052
      • 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:4232
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:324
        • 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:544
        • C:\Windows\SysWOW64\findstr.exe
          findstr All
          4⤵
          • System Location Discovery: System Language Discovery
          PID:3212
      • 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:1708
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1688
        • 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:3932

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\New\Server.exe

    Filesize

    175KB

    MD5

    f6de529f44ce715ca2229e72f80bb2c9

    SHA1

    b8fdc1415fdf3b2cf64c018f1f53bec4affdafca

    SHA256

    f6a225855d7af90a9d3cfe74eeb5735dccbcab1b6cc6d6941a91af6be5b19da8

    SHA512

    28a109d54ff5ecbb232351cc59c46dbf07c6825242c3a49b6046e3ae23994171d89157f8167b6e11418cb108c7c3f1dab4e9edbc088d8699cff5e7511ac9d277

  • C:\Users\Admin\AppData\Local\39e62868d08a4bdcb37d42f544f8ee24\msgid.dat

    Filesize

    1B

    MD5

    cfcd208495d565ef66e7dff9f98764da

    SHA1

    b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

    SHA256

    5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

    SHA512

    31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

  • C:\Users\Admin\AppData\Local\Temp\tmpE9B8.tmp.dat

    Filesize

    114KB

    MD5

    e3bad5a8407ce8be2e003acd06598035

    SHA1

    a6bc025a692ae74493b231311373d214b72fd9b1

    SHA256

    29a8f30850aa6f08ad492c71594de5844e11ab1a9bc4b8e0432b137fb8ca2d69

    SHA512

    cce663e7318c9a9723a676e100dc77c47399f3ca3c25729781eddd4c63e7797c93ccca34c49a0eb725806691ffbec2699dd7d450f14cbbaeff8a3bb07a57e082

  • C:\Users\Admin\AppData\Local\Temp\tmpE9BA.tmp.dat

    Filesize

    160KB

    MD5

    f310cf1ff562ae14449e0167a3e1fe46

    SHA1

    85c58afa9049467031c6c2b17f5c12ca73bb2788

    SHA256

    e187946249cd390a3c1cf5d4e3b0d8f554f9acdc416bf4e7111fff217bb08855

    SHA512

    1196371de08c964268c44103ccaed530bda6a145df98e0f480d8ee5ad58cb6fb33ca4c9195a52181fe864726dcf52e6a7a466d693af0cda43400a3a7ef125fad

  • C:\Users\Admin\AppData\Local\Temp\tmpE9D8.tmp.dat

    Filesize

    116KB

    MD5

    f70aa3fa04f0536280f872ad17973c3d

    SHA1

    50a7b889329a92de1b272d0ecf5fce87395d3123

    SHA256

    8d782aa65de6db3538a14da82216e96d5e0a3c60496726e3541a8165bccc65f8

    SHA512

    30675c5c610d9aa32a4c4a4d9c3af7570823cd197f8d2a709222c78e2cd15304bbed80e233e3674ec2f6e33d1961c67fd6a46dc8ba8b1a301cd0722932c03c84

  • C:\Users\Admin\AppData\Local\Temp\tmpE9FD.tmp.dat

    Filesize

    5.0MB

    MD5

    ddaffee708f22a13d50fe4cf14cf49d9

    SHA1

    16a3a568ed44926aeff80727aa23f67f70d5e571

    SHA256

    56d4aaee3d420e8f4aa59e4c3becb04308e217675a838553291a899e29be02c2

    SHA512

    8afd7e846ae2d793c6a8cca93d9255622db2cba5725a0505b680366698401cbc3b175dab1a0218dba5e3aa6480f2a6e0625c07a9e0a3959ad624462220f64244

  • C:\Users\Admin\AppData\Local\a77ad8e141853a696cf469fe9d86fd45\Admin@OZMCVSQS_en-US.zip

    Filesize

    73KB

    MD5

    147ba619a7c84ee5b7722360d4c22c9e

    SHA1

    92a6a273c80ccafa295f0b138ed8c8b215ab3715

    SHA256

    3765f3c551d0855575c4b2d08cb086fdb6302416be29fca7b972018f3d79e914

    SHA512

    0cbd43b6d8f70d09439e1842dd7da49e794591f26f9dfee8af7b182a793293adcad558e8db1974a69d6f638a574c6ea7fb15296d2a2f5056347b6e9097a90f37

  • C:\Users\Admin\AppData\Local\a77ad8e141853a696cf469fe9d86fd45\Admin@OZMCVSQS_en-US\Browsers\Firefox\Bookmarks.txt

    Filesize

    105B

    MD5

    2e9d094dda5cdc3ce6519f75943a4ff4

    SHA1

    5d989b4ac8b699781681fe75ed9ef98191a5096c

    SHA256

    c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

    SHA512

    d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

  • C:\Users\Admin\AppData\Local\a77ad8e141853a696cf469fe9d86fd45\Admin@OZMCVSQS_en-US\System\Process.txt

    Filesize

    4KB

    MD5

    207095483dfdb1b09934bc7aa364bb97

    SHA1

    508242c44d1c903ed8117286c92e6ac10e576bba

    SHA256

    e12efa50642f04ae0a2e28fff8cb1e10fbc059bd05aa6eba6bca0741bc586cf1

    SHA512

    e841a9012f97d21ebd92be4041675302373ad115218bb4e5a4aebf00e8b22d7e5db16a06e63bf0c5cbcf9f7d92a58467e958a969d2085688bcf05c47d089ba78

  • memory/3564-337-0x0000000006330000-0x0000000006342000-memory.dmp

    Filesize

    72KB

  • memory/3564-25-0x0000000072940000-0x00000000730F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3564-387-0x0000000072940000-0x00000000730F0000-memory.dmp

    Filesize

    7.7MB

  • memory/3564-189-0x0000000072940000-0x00000000730F0000-memory.dmp

    Filesize

    7.7MB

  • memory/5052-188-0x000000007294E000-0x000000007294F000-memory.dmp

    Filesize

    4KB

  • memory/5052-319-0x0000000006560000-0x0000000006B04000-memory.dmp

    Filesize

    5.6MB

  • memory/5052-326-0x0000000006030000-0x000000000603A000-memory.dmp

    Filesize

    40KB

  • memory/5052-318-0x0000000005F10000-0x0000000005FA2000-memory.dmp

    Filesize

    584KB

  • memory/5052-26-0x00000000053A0000-0x0000000005406000-memory.dmp

    Filesize

    408KB

  • memory/5052-24-0x00000000009B0000-0x00000000009E2000-memory.dmp

    Filesize

    200KB

  • memory/5052-23-0x000000007294E000-0x000000007294F000-memory.dmp

    Filesize

    4KB