Resubmissions

03/05/2024, 03:00

240503-dhq5jsdd5110

03/05/2024, 02:57

240503-dfyfvafe5410

Analysis

  • max time kernel
    149s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/05/2024, 02:57

General

  • Target
    asd.exe
  • Size 74KB
  • Sample240503-dfyfvafe54
  • SHA256 916049b956a4db4cbcbdfb612f7cb13413e4beb2282f6cddee30038378ce3748
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • asyncrat

Version
  • Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet
  • Default

C2
  • 147.185.221.19:42550

Attributes
  • delay

    1

  • install

    true

  • install_file

    test.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • 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 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 26 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\asd.exe
    "C:\Users\Admin\AppData\Local\Temp\asd.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1964
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "test" /tr '"C:\Users\Admin\AppData\Roaming\test.exe"' & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:5004
      • C:\Windows\system32\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "test" /tr '"C:\Users\Admin\AppData\Roaming\test.exe"'
        3⤵
        • Creates scheduled task(s)
        PID:2056
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp449A.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3180
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:1984
      • C:\Users\Admin\AppData\Roaming\test.exe
        "C:\Users\Admin\AppData\Roaming\test.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:4780
  • C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe"
    1⤵
    • Enumerates system info in registry
    • Modifies data under HKEY_USERS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:3760
    • C:\Program Files\Google\Chrome\Application\chrome.exe
      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=123.0.6312.106 --initial-client-data=0x118,0x11c,0x120,0xf4,0x124,0x7ffa21a9cc40,0x7ffa21a9cc4c,0x7ffa21a9cc58
      2⤵
        PID:2764
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --no-appcompat-clear --gpu-preferences=WAAAAAAAAADgAAAMAAAAAAAAAAAAAAAAAABgAAEAAAA4AAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --field-trial-handle=2032,i,6146399195221550200,222639339462543626,262144 --variations-seed-version=20240418-180204.077000 --mojo-platform-channel-handle=2028 /prefetch:2
        2⤵
          PID:1408
        • C:\Program Files\Google\Chrome\Application\chrome.exe
          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --no-appcompat-clear --field-trial-handle=1884,i,6146399195221550200,222639339462543626,262144 --variations-seed-version=20240418-180204.077000 --mojo-platform-channel-handle=2540 /prefetch:3
          2⤵
            PID:2100
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --lang=en-US --service-sandbox-type=service --no-appcompat-clear --field-trial-handle=2136,i,6146399195221550200,222639339462543626,262144 --variations-seed-version=20240418-180204.077000 --mojo-platform-channel-handle=2688 /prefetch:8
            2⤵
              PID:4972
            • C:\Program Files\Google\Chrome\Application\chrome.exe
              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-chrome-cart --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --field-trial-handle=3192,i,6146399195221550200,222639339462543626,262144 --variations-seed-version=20240418-180204.077000 --mojo-platform-channel-handle=3200 /prefetch:1
              2⤵
                PID:3884
              • C:\Program Files\Google\Chrome\Application\chrome.exe
                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-chrome-cart --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --field-trial-handle=3208,i,6146399195221550200,222639339462543626,262144 --variations-seed-version=20240418-180204.077000 --mojo-platform-channel-handle=3288 /prefetch:1
                2⤵
                  PID:2324
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-chrome-cart --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --field-trial-handle=4588,i,6146399195221550200,222639339462543626,262144 --variations-seed-version=20240418-180204.077000 --mojo-platform-channel-handle=4600 /prefetch:1
                  2⤵
                    PID:516
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --no-appcompat-clear --field-trial-handle=4720,i,6146399195221550200,222639339462543626,262144 --variations-seed-version=20240418-180204.077000 --mojo-platform-channel-handle=4732 /prefetch:8
                    2⤵
                      PID:3064
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --no-appcompat-clear --field-trial-handle=4580,i,6146399195221550200,222639339462543626,262144 --variations-seed-version=20240418-180204.077000 --mojo-platform-channel-handle=4876 /prefetch:8
                      2⤵
                        PID:2372
                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-chrome-cart --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --field-trial-handle=4440,i,6146399195221550200,222639339462543626,262144 --variations-seed-version=20240418-180204.077000 --mojo-platform-channel-handle=4732 /prefetch:1
                        2⤵
                          PID:4360
                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.ProcessorMetrics --lang=en-US --service-sandbox-type=none --no-appcompat-clear --field-trial-handle=3580,i,6146399195221550200,222639339462543626,262144 --variations-seed-version=20240418-180204.077000 --mojo-platform-channel-handle=3436 /prefetch:8
                          2⤵
                            PID:1504
                          • C:\Program Files\Google\Chrome\Application\chrome.exe
                            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=data_decoder.mojom.DataDecoderService --lang=en-US --service-sandbox-type=service --no-appcompat-clear --field-trial-handle=3548,i,6146399195221550200,222639339462543626,262144 --variations-seed-version=20240418-180204.077000 --mojo-platform-channel-handle=3536 /prefetch:8
                            2⤵
                              PID:3316
                            • C:\Program Files\Google\Chrome\Application\chrome.exe
                              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-chrome-cart --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=13 --field-trial-handle=4808,i,6146399195221550200,222639339462543626,262144 --variations-seed-version=20240418-180204.077000 --mojo-platform-channel-handle=4716 /prefetch:1
                              2⤵
                                PID:5828
                              • C:\Program Files\Google\Chrome\Application\chrome.exe
                                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-chrome-cart --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=14 --field-trial-handle=4904,i,6146399195221550200,222639339462543626,262144 --variations-seed-version=20240418-180204.077000 --mojo-platform-channel-handle=4788 /prefetch:1
                                2⤵
                                  PID:2132
                                • C:\Program Files\Google\Chrome\Application\chrome.exe
                                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --enable-chrome-cart --no-appcompat-clear --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=15 --field-trial-handle=3536,i,6146399195221550200,222639339462543626,262144 --variations-seed-version=20240418-180204.077000 --mojo-platform-channel-handle=5200 /prefetch:1
                                  2⤵
                                    PID:3888
                                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --lang=en-US --service-sandbox-type=none --no-appcompat-clear --field-trial-handle=5352,i,6146399195221550200,222639339462543626,262144 --variations-seed-version=20240418-180204.077000 --mojo-platform-channel-handle=5500 /prefetch:8
                                    2⤵
                                    • Modifies registry class
                                    PID:6128
                                • C:\Program Files\Google\Chrome\Application\123.0.6312.106\elevation_service.exe
                                  "C:\Program Files\Google\Chrome\Application\123.0.6312.106\elevation_service.exe"
                                  1⤵
                                    PID:2180
                                  • C:\Windows\system32\svchost.exe
                                    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s NgcSvc
                                    1⤵
                                      PID:2384

                                    Network

                                          MITRE ATT&CK Enterprise v15

                                          Replay Monitor

                                          Loading Replay Monitor...

                                          Downloads

                                          BrowsingTopicsState

                                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\BrowsingTopicsState
                                          • Size 649B
                                          • SHA256 c5e8cb6640d21791bf270280cf00313f586e85b42e69af72f0d81500c6cf5b1d
                                          • MD5 SHA1 SHA512

                                          f_00000e

                                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Cache\Cache_Data\f_00000e
                                          • Size 27KB
                                          • SHA256 751f9ea75e28033193df30031bf3d33e0553e1644ccbaecb26fe7d3bda21b78c
                                          • MD5 SHA1 SHA512 SSDEEP

                                          f_00000f

                                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Cache\Cache_Data\f_00000f
                                          • Size 64KB
                                          • SHA256 91eb454ba34c3c40bd85158046f285e797a21dc861e5b60cf05ad7b604a539d8
                                          • MD5 SHA1 SHA512 SSDEEP

                                          f_000012

                                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Cache\Cache_Data\f_000012
                                          • Size 20KB
                                          • SHA256 e18d7214e7d3d47d913c0436f5308b9296ca3c6cd34059bf9cbf03126bafafe9
                                          • MD5 SHA1 SHA512 SSDEEP

                                          f_000013

                                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Cache\Cache_Data\f_000013
                                          • Size 78KB
                                          • SHA256 3dfb4715163bdd16d75d0b225bfba302a544c0ce6ea8276027e948d5f0fcb5fb
                                          • MD5 SHA1 SHA512 SSDEEP

                                          f_000014

                                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Cache\Cache_Data\f_000014
                                          • Size 94KB
                                          • SHA256 0f985b3647f4da56867208cb6c583e7a3f7b20c09f4ab11355094ab80ec95cfa
                                          • MD5 SHA1 SHA512 SSDEEP

                                          f_00002b

                                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Cache\Cache_Data\f_00002b
                                          • Size 29KB
                                          • SHA256 4b0beec41cb9785652a4a3172a4badbdaa200b5e0b17a7bcc81af25afd9b2432
                                          • MD5 SHA1 SHA512 SSDEEP

                                          f_00002c

                                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Cache\Cache_Data\f_00002c
                                          • Size 60KB
                                          • SHA256 4b285731dab9dd9e7e3b0c694653a6a74bccc16fe34c96d0516bf8960b5689bc
                                          • MD5 SHA1 SHA512 SSDEEP

                                          the-real-index

                                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Code Cache\js\index-dir\the-real-index
                                          • Size 1KB
                                          • SHA256 98eb079e9488430677ab31577623ae9bff3042cfa263e6cc57dff728ac674c43
                                          • MD5 SHA1 SHA512

                                          SCT Auditing Pending Reports

                                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\SCT Auditing Pending Reports
                                          • Size 2B
                                          • SHA256 4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945
                                          • MD5 SHA1 SHA512

                                          TransportSecurity

                                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity
                                          • Size 1KB
                                          • SHA256 9b1dea16cbb1625a1beb8dfb1066250d0b765aa1168824861ead0d21c74f11ff
                                          • MD5 SHA1 SHA512

                                          TransportSecurity

                                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity
                                          • Size 1KB
                                          • SHA256 1664396ef005d6b2b8341eb44498b3776ada623e0bae3949125df317814f0b1b
                                          • MD5 SHA1 SHA512

                                          TransportSecurity

                                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity
                                          • Size 1KB
                                          • SHA256 8d9fe64d6fb928516a23eead0e2ea0d1a2325da367c4091b93596d48af67f887
                                          • MD5 SHA1 SHA512

                                          Preferences

                                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                          • Size 10KB
                                          • SHA256 ffbbe1421748e74a8bbd3559cdde84fdf7a0fe91d2248aaee23926edb0c0f2d3
                                          • MD5 SHA1 SHA512 SSDEEP

                                          Preferences

                                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                          • Size 10KB
                                          • SHA256 b0307e95dd73345badebc0234a030f70abf1406749b636d6abae4838a64d7808
                                          • MD5 SHA1 SHA512 SSDEEP

                                          Preferences

                                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                          • Size 10KB
                                          • SHA256 28caed28cd8fc5b7ceac960f2e80308741c43d5a3d4e245cc815070eac385330
                                          • MD5 SHA1 SHA512 SSDEEP

                                          Preferences

                                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                          • Size 10KB
                                          • SHA256 28f244a7268833781d8640feeb57d60b698761c9f987552791e617210e8d7486
                                          • MD5 SHA1 SHA512 SSDEEP

                                          the-real-index

                                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Service Worker\ScriptCache\index-dir\the-real-index
                                          • Size 120B
                                          • SHA256 b6e2e90336637bbaea489aeaf1634ad1d3f0986667b973b6ce62d03519eeaa35
                                          • MD5 SHA1 SHA512

                                          d2fd33a3-f08b-4780-b4a5-b569866d52ab.tmp

                                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\d2fd33a3-f08b-4780-b4a5-b569866d52ab.tmp
                                          • Size 15KB
                                          • SHA256 239122fd2938267802c39868a26f305e9ed9e78b16deded81fdfff1a84251b46
                                          • MD5 SHA1 SHA512 SSDEEP

                                          Local State

                                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                          • Size 151KB
                                          • SHA256 d02a9223b7acd6069bdc9d5e36651cc9f96e4dd96b4a61f5d226eccd7bb681d7
                                          • MD5 SHA1 SHA512 SSDEEP

                                          d8062147-4361-4e39-ac12-3ef42ac260de.tmp

                                          • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\d8062147-4361-4e39-ac12-3ef42ac260de.tmp
                                          • Size 151KB
                                          • SHA256 94b53007124a696b7e8d3e261f1cb433ce64bd5ae65e6a59887154dbd27fdef2
                                          • MD5 SHA1 SHA512 SSDEEP

                                          tmp449A.tmp.bat

                                          • Path C:\Users\Admin\AppData\Local\Temp\tmp449A.tmp.bat
                                          • Size 148B
                                          • SHA256 e462644adcd5efd89a992bd4d98c6d752aa420bbd6ca4786ae51bfbaf49e1f1a
                                          • MD5 SHA1 SHA512

                                          default.dic

                                          • Path C:\Users\Admin\AppData\Roaming\Microsoft\Spelling\en-US\default.dic
                                          • Size 2B
                                          • SHA256 b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209
                                          • MD5 SHA1 SHA512

                                          DataLogs.conf

                                          • Path C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf
                                          • Size 8B
                                          • SHA256 c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761
                                          • MD5 SHA1 SHA512

                                          test.exe

                                          • Path C:\Users\Admin\AppData\Roaming\test.exe
                                          • Size 74KB
                                          • SHA256 916049b956a4db4cbcbdfb612f7cb13413e4beb2282f6cddee30038378ce3748
                                          • MD5 SHA1 SHA512 SSDEEP

                                          memory/1964-8-0x00007FFA2AC00000-0x00007FFA2B6C1000-memory.dmp

                                          memory/1964-3-0x00007FFA2AC00000-0x00007FFA2B6C1000-memory.dmp

                                          memory/1964-9-0x00007FFA2AC00000-0x00007FFA2B6C1000-memory.dmp

                                          memory/1964-0-0x0000000000CE0000-0x0000000000CF8000-memory.dmp

                                          memory/1964-1-0x00007FFA2AC03000-0x00007FFA2AC05000-memory.dmp

                                          memory/4780-17-0x000000001C7D0000-0x000000001C846000-memory.dmp

                                          memory/4780-18-0x00000000029C0000-0x00000000029D0000-memory.dmp

                                          memory/4780-19-0x000000001B8A0000-0x000000001B8BE000-memory.dmp