Analysis

  • max time kernel
    95s
  • max time network
    100s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-01-2025 18:59

General

  • Target

    db55b9cb29193e52fe1aa08bdeb872392885cc1fe8a17883d163d87818b969bbN.exe

  • Size

    3.6MB

  • MD5

    c1b291109f5b8e4e2bd958cf377867f0

  • SHA1

    636e6e1279746ef11f8445360a3ca1855f13e715

  • SHA256

    db55b9cb29193e52fe1aa08bdeb872392885cc1fe8a17883d163d87818b969bb

  • SHA512

    23a35524da71ef18dcba22d5b42c3f6131258d2040077b14a0a3f7f7820911694fc5c1f92933d39a41437b12de734225589ef02df8805d597e6b746443402b1a

  • SSDEEP

    98304:lkqXf0FlL9nrYAWAZi6sfLxkuahjCOeX9YG9see5GnRyCAm0makxH13:lkSIlLtzWAXAkuujCPX9YG9he5GnQCAo

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

C2

51.89.44.68:8848

Mutex

etb3t1tr5n

Attributes
  • delay

    1

  • install

    true

  • install_file

    svchost.exe

  • install_folder

    %Temp%

aes.plain

Signatures

  • AsyncRat

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

  • Asyncrat family
  • Async RAT payload 1 IoCs
  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 5 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 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.

  • 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 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 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
  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 26 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\db55b9cb29193e52fe1aa08bdeb872392885cc1fe8a17883d163d87818b969bbN.exe
    "C:\Users\Admin\AppData\Local\Temp\db55b9cb29193e52fe1aa08bdeb872392885cc1fe8a17883d163d87818b969bbN.exe"
    1⤵
    • Checks computer location settings
    • Accesses Microsoft Outlook profiles
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:3128
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:756
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      "C:\Users\Admin\AppData\Roaming\svchost.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:3912
    • C:\Windows\SYSTEM32\cmd.exe
      "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
      2⤵
      • System Network Configuration Discovery: Wi-Fi Discovery
      • Suspicious use of WriteProcessMemory
      PID:1540
      • C:\Windows\system32\chcp.com
        chcp 65001
        3⤵
          PID:2600
        • C:\Windows\system32\netsh.exe
          netsh wlan show profile
          3⤵
          • Event Triggered Execution: Netsh Helper DLL
          • System Network Configuration Discovery: Wi-Fi Discovery
          PID:4688
        • C:\Windows\system32\findstr.exe
          findstr All
          3⤵
            PID:1384
        • C:\Windows\SYSTEM32\cmd.exe
          "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2508
          • C:\Windows\system32\chcp.com
            chcp 65001
            3⤵
              PID:4360
            • C:\Windows\system32\netsh.exe
              netsh wlan show networks mode=bssid
              3⤵
              • Event Triggered Execution: Netsh Helper DLL
              PID:2792
          • C:\Users\Admin\AppData\Roaming\svchost.exe
            "C:\Users\Admin\AppData\Roaming\svchost.exe"
            2⤵
            • Executes dropped EXE
            • Suspicious use of AdjustPrivilegeToken
            PID:5036
          • C:\Users\Admin\AppData\Roaming\svchost.exe
            "C:\Users\Admin\AppData\Roaming\svchost.exe"
            2⤵
            • Executes dropped EXE
            PID:3192
          • C:\Users\Admin\AppData\Roaming\svchost.exe
            "C:\Users\Admin\AppData\Roaming\svchost.exe"
            2⤵
            • Executes dropped EXE
            PID:1056
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\8c577c3e-831b-45f4-8b49-f7feb9ebcef6.bat"
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2560
            • C:\Windows\system32\chcp.com
              chcp 65001
              3⤵
                PID:4708
              • C:\Windows\system32\taskkill.exe
                taskkill /F /PID 3128
                3⤵
                • Kills process with taskkill
                PID:1808
              • C:\Windows\system32\timeout.exe
                timeout /T 2 /NOBREAK
                3⤵
                • Delays execution with timeout.exe
                PID:3912
          • C:\Windows\system32\msiexec.exe
            C:\Windows\system32\msiexec.exe /V
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:2376

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\4df93425b2bc8b01400a74898be079a0\Admin@YQRLKYON_en-US\Browsers\Firefox\Bookmarks.txt

            Filesize

            220B

            MD5

            2ab1fd921b6c195114e506007ba9fe05

            SHA1

            90033c6ee56461ca959482c9692cf6cfb6c5c6af

            SHA256

            c79cfdd6d0757eb52fbb021e7f0da1a2a8f1dd81dcd3a4e62239778545a09ecc

            SHA512

            4f0570d7c7762ecb4dcf3171ae67da3c56aa044419695e5a05f318e550f1a910a616f5691b15abfe831b654718ec97a534914bd172aa7a963609ebd8e1fae0a5

          • C:\Users\Admin\AppData\Local\4df93425b2bc8b01400a74898be079a0\Admin@YQRLKYON_en-US\System\Apps.txt

            Filesize

            4KB

            MD5

            bfea0eaca7ccaf9020971c28130a1b5f

            SHA1

            012e8f95c2ad6a2debad1fd707f7269d70fe622d

            SHA256

            b7632c5e6ac0660d8e0bb6dd86a1ddeafa74113272f9142e75ae26f60a5bcb23

            SHA512

            989249780162cee3eb28a491f1d887e5f4ce150d79491865a2ebc56b14f2c31cae9f5c0ef43bea973d8f97c9887abe46c461447f906f908c7b52bce76c99c37f

          • C:\Users\Admin\AppData\Local\4df93425b2bc8b01400a74898be079a0\Admin@YQRLKYON_en-US\System\Process.txt

            Filesize

            595B

            MD5

            3d64c8ffb19722e1aea117fa4f14ec29

            SHA1

            40da5106f1b93a5dda5acd1c481add9e4ca55e10

            SHA256

            df67b98303feb0d396aa132ad85743dd891fcfcbc4d26c8a20013c0f77078e56

            SHA512

            e1b8fafa48eeac90f09b67d570fbabd59b39f7ee13ee817b029882004560cc873390c355d536a5bd0437934afa03e56815989caef58954b87da8947add93e7cf

          • C:\Users\Admin\AppData\Local\4df93425b2bc8b01400a74898be079a0\Admin@YQRLKYON_en-US\System\Process.txt

            Filesize

            1KB

            MD5

            1622abd58936afcc29796dae9faac6da

            SHA1

            91d904fbb593a4942748bf560406925f5a30a8f7

            SHA256

            bb3f46c15f6cdd25d5e279a6029323ca3574776cf2f1138ee0c9036b71e3fa84

            SHA512

            bb19e175848e0653fad82bc8287bef56d4e6fc2e10e0b0a84688e642d703e5a9769c31e4ab277504806ed36a80c8e274dc35b5eecce8ebfd951434868a8c17b5

          • C:\Users\Admin\AppData\Local\4df93425b2bc8b01400a74898be079a0\Admin@YQRLKYON_en-US\System\Process.txt

            Filesize

            3KB

            MD5

            da34ed1bd337784a0044133b90e3d705

            SHA1

            d519166b7ed63651526dbc81c4e8157c9e59f606

            SHA256

            a3587af37e695d45dbb9593511400e6825be426347a91bcc877817da91a6bbd9

            SHA512

            49e3e722fa0a6e425925fe324e114e377cbe1fdfec709c132c72022a558245a2fa173d80944dd3cae211176ba77273a4729b608a82eb9443785b8bc8900ab02b

          • C:\Users\Admin\AppData\Local\4df93425b2bc8b01400a74898be079a0\Admin@YQRLKYON_en-US\System\Process.txt

            Filesize

            4KB

            MD5

            3c71113859bf05a162effc761e9e5c7d

            SHA1

            d05dd611066923c02cc11db979c91478267b38dc

            SHA256

            92ae8906029d0bcc956c9cbca4be40ff6019d73fe8e5f0aabbd94f3dc7cd20bb

            SHA512

            8ae8f448c90328346f5f6e557268fa99564243a65d1c06638b4c07086ff1ce1b5b8f34bc0202534babeb02a5fbad81c8bc97fd1ef7582934f7fda7cceef576a0

          • C:\Users\Admin\AppData\Local\4df93425b2bc8b01400a74898be079a0\msgid.dat

            Filesize

            4B

            MD5

            c6bff625bdb0393992c9d4db0c6bbe45

            SHA1

            551220deeb362077f5df356bdebaf94f34f93f0c

            SHA256

            36ab771eba23f49d7ae43af88c601f3de8fccb201250906a4085444ae765f2db

            SHA512

            0766127a24f99a611a52d2b3c8404af038dfa3cf0bf587c12976211480d466ddd0892fcbca79d44bb7d2eb931182f1f2b7e758d93f440edefc21dc86f9c6ebd2

          • C:\Users\Admin\AppData\Local\Temp\8c577c3e-831b-45f4-8b49-f7feb9ebcef6.bat

            Filesize

            152B

            MD5

            b3ef71a1b83f1839294253dfc54c5809

            SHA1

            9fc98ef0308eec857fb81f1b5e644b5c1b08a61e

            SHA256

            474b31704767383c1f2a04cccdb19458448876e93d67ea7b192a531e4b922c69

            SHA512

            3c96fa08e0864bac6f43b62cb69a41b36f31d9a0ae09435b11a4595d7b89e94e19ef9f5701a3dbfd4982b7a197e83a4ac094a839b1ac557453914eb9bd77c121

          • C:\Users\Admin\AppData\Local\Temp\Stealerium-Latest.log

            Filesize

            4KB

            MD5

            777779bdb1f6d618c5fba10afd6bf57f

            SHA1

            ccfe3735cc2f5c8b4df590105315a6e0d61d1892

            SHA256

            b84f9341d126f1bae5a4f07f1521a3076f26d319599fc83aa2f6d5615a7cbf5e

            SHA512

            ff95be2c95b541f34d49217706e81e2f42a95fa09151e050dcb62012922b28e70d196e97c06fc5f8d0951be9e551e349089e08517502a62c32c97ae7d660447a

          • C:\Users\Admin\AppData\Local\Temp\Stealerium-Latest.log

            Filesize

            2KB

            MD5

            e74f46aef2c0076895b4fdacf0a06d51

            SHA1

            aca45e39d619f7fe4315746039feccc7f73bf27c

            SHA256

            43e72c1c52af66b238d8f50e69ea61bd6605634a093ab5b13defdd0bc80ffc97

            SHA512

            e93fc77ca989eb1d4b856300965ac435d492278e550ca23037557ec415e4b7a1753a1d3070354645773575e5e65b5fe1982297737223b993ccf9f330dcbd7abd

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

            Filesize

            63KB

            MD5

            67ca41c73d556cc4cfc67fc5b425bbbd

            SHA1

            ada7f812cd581c493630eca83bf38c0f8b32b186

            SHA256

            23d2e491a8c7f2f7f344764e6879d9566c9a3e55a3788038e48b346c068dde5b

            SHA512

            0dceb6468147cd2497adf31843389a78460ed5abe2c5a13488fc55a2d202ee6ce0271821d3cf12bc1f09a4d6b79a737ea3bccfc2bb87f89b3fff6410fa85ec02

          • memory/756-24-0x00007FF96A280000-0x00007FF96AD41000-memory.dmp

            Filesize

            10.8MB

          • memory/756-23-0x0000000000E70000-0x0000000000E86000-memory.dmp

            Filesize

            88KB

          • memory/756-49-0x00007FF96A280000-0x00007FF96AD41000-memory.dmp

            Filesize

            10.8MB

          • memory/3128-247-0x00007FF96A283000-0x00007FF96A285000-memory.dmp

            Filesize

            8KB

          • memory/3128-290-0x00007FF96A280000-0x00007FF96AD41000-memory.dmp

            Filesize

            10.8MB

          • memory/3128-1-0x000001F7E1F90000-0x000001F7E232C000-memory.dmp

            Filesize

            3.6MB

          • memory/3128-330-0x000001F7FDED0000-0x000001F7FDF14000-memory.dmp

            Filesize

            272KB

          • memory/3128-331-0x000001F7FDF10000-0x000001F7FDF2A000-memory.dmp

            Filesize

            104KB

          • memory/3128-426-0x000001F7FDF30000-0x000001F7FDFE2000-memory.dmp

            Filesize

            712KB

          • memory/3128-427-0x000001F7FE010000-0x000001F7FE032000-memory.dmp

            Filesize

            136KB

          • memory/3128-429-0x000001F7FE040000-0x000001F7FE0E0000-memory.dmp

            Filesize

            640KB

          • memory/3128-6-0x00007FF96A280000-0x00007FF96AD41000-memory.dmp

            Filesize

            10.8MB

          • memory/3128-0-0x00007FF96A283000-0x00007FF96A285000-memory.dmp

            Filesize

            8KB

          • memory/3128-468-0x00007FF96A280000-0x00007FF96AD41000-memory.dmp

            Filesize

            10.8MB