Resubmissions

14/10/2026, 01:54

261014-cb2f9sty7k10

14/10/2026, 01:51

261014-b92dgsty5p10

Analysis

  • user interaction
    yes
  • max time kernel
    149s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    14/10/2026, 01:51

General

  • Target
    FL Studio 25.exe
  • Size 144KB
  • Sample261014-b92dgsty5p
  • SHA256 f6aaeb3d9ea91538739ed36f5b8f53eac68b0050562e3f14019ad4ab8a9a7d53
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.8

Botnet
  • Default

Mutex
  • CJjWFKOVKRYV

Attributes
  • delay

    3

  • install

    true

  • install_file

    FL Studio 25.exe

  • install_folder

    %AppData%

  • local_host

    127.0.0.1

aes.plain

Signatures

  • Family: AsyncRat

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

  • 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
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • Executes a command shell one-liner 1 TTPs 2 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Time Discovery 1 TTPs 1 IoCs

    Adversary may gather the system time and/or time zone settings from a local or remote system.

  • Delays execution with timeout.exe 1 IoCs
  • Enumerates system info in registry 2 TTPs 3 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 23 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\FL Studio 25.exe
    "C:\Users\Admin\AppData\Local\Temp\FL Studio 25.exe"
    1⤵
    • Checks computer location settings
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2532
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "FL Studio 25" /tr '"C:\Users\Admin\AppData\Roaming\FL Studio 25.exe"' & exit
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:812
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "FL Studio 25" /tr '"C:\Users\Admin\AppData\Roaming\FL Studio 25.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2996
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpF6AF.tmp.bat""
      2⤵
      • Executes a command shell one-liner
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3580
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:868
      • C:\Users\Admin\AppData\Roaming\FL Studio 25.exe
        "C:\Users\Admin\AppData\Roaming\FL Studio 25.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:1628
  • C:\Users\Admin\AppData\Roaming\FL Studio 25.exe
    "C:\Users\Admin\AppData\Roaming\FL Studio 25.exe"
    1⤵
    • Executes dropped EXE
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:3744
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:3864
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --default-search-provider=? --out-pipe-name=MSEdgeDefaultaa84c0f9h43b1h456dhb3e7hd0e6a6c8108f
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:4028
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --default-search-provider=? --out-pipe-name=MSEdgeDefaultaa84c0f9h43b1h456dhb3e7hd0e6a6c8108f --edge-skip-compat-layer-relaunch
        2⤵
        • Enumerates system info in registry
        • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
        • Suspicious use of WriteProcessMemory
        PID:2260
        • 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:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=139.0.7258.155 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 --annotation=prod=Edge --annotation=ver=139.0.3405.125 --initial-client-data=0x234,0x238,0x23c,0x230,0x244,0x7ff82863c188,0x7ff82863c194,0x7ff82863c1a0
          3⤵
            PID:3764
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --no-pre-read-main-dll --force-high-res-timeticks=disabled --gpu-preferences=SAAAAAAAAADgAAAIAAAAAAAAAAAAAGAAAQAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQAAAAAAAAABAAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --always-read-main-dll --metrics-shmem-handle=1684,i,14241604417549563012,15428756183648487496,262144 --field-trial-handle=2292,i,15160490564007242701,68864773983274018,262144 --variations-seed-version --mojo-platform-channel-handle=2288 /prefetch:2
            3⤵
              PID:3248
            • 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 --lang=en-US --service-sandbox-type=none --no-pre-read-main-dll --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=1824,i,1316789088740945037,12070589768707238830,524288 --field-trial-handle=2292,i,15160490564007242701,68864773983274018,262144 --variations-seed-version --mojo-platform-channel-handle=2320 /prefetch:3
              3⤵
              • System Time Discovery
              PID:4876
            • 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 --lang=en-US --service-sandbox-type=service --force-high-res-timeticks=disabled --always-read-main-dll --metrics-shmem-handle=2572,i,17078750093548190102,7646731131305842558,524288 --field-trial-handle=2292,i,15160490564007242701,68864773983274018,262144 --variations-seed-version --mojo-platform-channel-handle=2560 /prefetch:8
              3⤵
                PID:3820
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --extension-process --renderer-sub-type=extension --pdf-upsell-enabled --force-high-res-timeticks=disabled --video-capture-use-gpu-memory-buffer --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --always-read-main-dll --metrics-shmem-handle=3252,i,4574476853618030341,9306827474473534507,2097152 --field-trial-handle=2292,i,15160490564007242701,68864773983274018,262144 --variations-seed-version --mojo-platform-channel-handle=3304 /prefetch:2
                3⤵
                  PID:2248
            • C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\elevation_service.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\139.0.3405.125\elevation_service.exe"
              1⤵
                PID:2836

              Network

                    MITRE ATT&CK Enterprise v16

                    Replay Monitor

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                    Downloads

                    FL Studio 25.exe.log

                    • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\FL Studio 25.exe.log
                    • Size 614B
                    • SHA256 9ed5449a36700939987209c7a2974b9cc669b8b22c7c4e7936f35dda0a4dc359
                    • MD5 SHA1 SHA512 TLSH

                    04854b3b-e67f-473b-8675-a1111490f812.tmp

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\04854b3b-e67f-473b-8675-a1111490f812.tmp
                    • Size 9KB
                    • SHA256 e8cd0312dee24b1b176dea527281e374fedd6ff7ad21724ddb2abaf5ae3db34e
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    0ff8ffd1-e7d3-4421-818f-9e85d2511080.tmp

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\0ff8ffd1-e7d3-4421-818f-9e85d2511080.tmp
                    • Size 8KB
                    • SHA256 10cd1da645e3f3103b9e4fd31d3b781ffee8e6d82a3a6edbf4c7a4b482837aeb
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    3534d60c-b9f3-4e9f-9094-7cb86074842f.tmp

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\3534d60c-b9f3-4e9f-9094-7cb86074842f.tmp
                    • Size 9KB
                    • SHA256 dc4439fb7c84683688ba774a01c71150dba3065f461f24f2caded297f3d6c303
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    settings.dat

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                    • Size 280B
                    • SHA256 7481989667805f861819a64a3969aaaf46d409d3cc4fe4b19154b579a00c6e16
                    • MD5 SHA1 SHA512 TLSH

                    settings.dat

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat
                    • Size 280B
                    • SHA256 d11bd63a3c8c3641d5bd4407fbf20115daee67c3050695788e54c8df9585c700
                    • MD5 SHA1 SHA512 TLSH

                    14d20b5a-851a-4979-b90c-b3836a7b5edc.tmp

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\14d20b5a-851a-4979-b90c-b3836a7b5edc.tmp
                    • Size 70KB
                    • SHA256 31a226211c491e1b0832d4cd3cf34d97165e24a7ce4ec655259cd188f3a2bd88
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    84639255-43eb-4936-87ec-b2ed0ec8c929.tmp

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\84639255-43eb-4936-87ec-b2ed0ec8c929.tmp
                    • Size 26KB
                    • SHA256 1cbda41b8e0ac179fa37b3e35bee30eb8542037ab7982e1adc3f5d180281d5e3
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    91ee14e9-dc63-4080-a91c-96ecfcc918e4.tmp

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\91ee14e9-dc63-4080-a91c-96ecfcc918e4.tmp
                    • Size 7KB
                    • SHA256 be451712ef45825838dd728aa98014351fcf1dc8649dd08c9abfa558207c3088
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    73c9817e-0e7a-452b-83c7-2a410ed84cb2.tmp

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\DualEngine\73c9817e-0e7a-452b-83c7-2a410ed84cb2.tmp
                    • Size 2B
                    • SHA256 44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a
                    • MD5 SHA1 SHA512

                    97a81470-d2b1-47b6-9b13-bfe40401719f.tmp

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\97a81470-d2b1-47b6-9b13-bfe40401719f.tmp
                    • Size 61B
                    • SHA256 e1b77550222c2451772c958e44026abe518a2c8766862f331765788ddd196377
                    • MD5 SHA1 SHA512 TLSH

                    ecd23cc3-9ce1-4ffd-9a70-068fb7c1ca4a.tmp

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\ecd23cc3-9ce1-4ffd-9a70-068fb7c1ca4a.tmp
                    • Size 2B
                    • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                    • MD5 SHA1 SHA512

                    b31d8448-b240-44e6-934b-3505f83d1c56.tmp

                    • Path C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\b31d8448-b240-44e6-934b-3505f83d1c56.tmp
                    • Size 8KB
                    • SHA256 6769e510d8e03d03a40677147397beac944b8bf1112600995483fe0ab6867047
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    tmpF6AF.tmp.bat

                    • Path C:\Users\Admin\AppData\Local\Temp\tmpF6AF.tmp.bat
                    • Size 156B
                    • SHA256 53f8c0c535ea0aa1c796ecbb6903f2f89e36d52027fb1650d8b8ff173fd2d4d4
                    • MD5 SHA1 SHA512 TLSH

                    FL Studio 25.exe

                    • Path C:\Users\Admin\AppData\Roaming\FL Studio 25.exe
                    • Size 144KB
                    • SHA256 f6aaeb3d9ea91538739ed36f5b8f53eac68b0050562e3f14019ad4ab8a9a7d53
                    • MD5 SHA1 SHA512 SSDEEP TLSH

                    memory/2532-3-0x00000000059E0000-0x0000000005A7C000-memory.dmp

                    memory/2532-2-0x0000000005530000-0x0000000005596000-memory.dmp

                    memory/2532-1-0x00000000055F0000-0x0000000005600000-memory.dmp

                    memory/2532-0-0x0000000000B70000-0x0000000000B9A000-memory.dmp