Analysis

  • max time kernel
    75s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    01/07/2024, 13:18

General

  • Target
    fix.exe
  • Size 35KB
  • Sample240701-qjyl8stdna
  • SHA256 99bf031f23b1759702a56ccfc9425f0a063654dcc4a94d8feeb89792c82f3082
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • xworm

Version
  • 5.0

C2
  • 20.ip.gl.ply.gg:53765

Mutex
  • JCfj6Aifpywc6Ul9

Attributes
  • Install_directory

    %AppData%

  • install_file

    svchost.exe

aes.plain

Extracted

Family
  • 44caliber

C2
  • https://discordapp.com/api/webhooks/1257280785476489217/L0UpV_ifGB55FAhZrd11A9RdK3XS9SxV4y_plmFbDZcUnmaJOTP9fgCIl4fpiKvDuv1o

Signatures

  • 44Caliber

    An open source infostealer written in C#.

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 58 IoCs
  • Suspicious use of FindShellTrayWindow 34 IoCs
  • Suspicious use of SendNotifyMessage 32 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fix.exe
    "C:\Users\Admin\AppData\Local\Temp\fix.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2024
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\fix.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2460
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'fix.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2800
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\svchost.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2656
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2164
    • C:\Users\Admin\AppData\Local\Temp\nvbpln.exe
      "C:\Users\Admin\AppData\Local\Temp\nvbpln.exe"
      2⤵
        PID:2732
      • C:\Users\Admin\AppData\Local\Temp\jhvbeh.exe
        "C:\Users\Admin\AppData\Local\Temp\jhvbeh.exe"
        2⤵
          PID:844
      • C:\Program Files\Google\Chrome\Application\chrome.exe
        "C:\Program Files\Google\Chrome\Application\chrome.exe"
        1⤵
        • Enumerates system info in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of WriteProcessMemory
        PID:372
        • 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:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Google\Chrome\User Data" --url=https://clients2.google.com/cr/report --annotation=channel= --annotation=plat=Win64 --annotation=prod=Chrome --annotation=ver=106.0.5249.119 --initial-client-data=0xc0,0xc4,0xc8,0x94,0xcc,0x7fef1a89758,0x7fef1a89768,0x7fef1a89778
          2⤵
            PID:1964
          • C:\Program Files\Google\Chrome\Application\chrome.exe
            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1092 --field-trial-handle=1348,i,10381174491199984685,13930553844737196264,131072 /prefetch:2
            2⤵
              PID:1620
            • 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 --mojo-platform-channel-handle=1500 --field-trial-handle=1348,i,10381174491199984685,13930553844737196264,131072 /prefetch:8
              2⤵
                PID:1208
              • 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=utility --mojo-platform-channel-handle=1596 --field-trial-handle=1348,i,10381174491199984685,13930553844737196264,131072 /prefetch:8
                2⤵
                  PID:1996
                • C:\Program Files\Google\Chrome\Application\chrome.exe
                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --first-renderer-process --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --mojo-platform-channel-handle=2308 --field-trial-handle=1348,i,10381174491199984685,13930553844737196264,131072 /prefetch:1
                  2⤵
                    PID:2356
                  • C:\Program Files\Google\Chrome\Application\chrome.exe
                    "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --mojo-platform-channel-handle=2316 --field-trial-handle=1348,i,10381174491199984685,13930553844737196264,131072 /prefetch:1
                    2⤵
                      PID:1108
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --gpu-preferences=UAAAAAAAAADgAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --use-gl=angle --use-angle=swiftshader-webgl --mojo-platform-channel-handle=1372 --field-trial-handle=1348,i,10381174491199984685,13930553844737196264,131072 /prefetch:2
                      2⤵
                        PID:1140
                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --mojo-platform-channel-handle=3128 --field-trial-handle=1348,i,10381174491199984685,13930553844737196264,131072 /prefetch:1
                        2⤵
                          PID:600
                        • 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 --mojo-platform-channel-handle=3380 --field-trial-handle=1348,i,10381174491199984685,13930553844737196264,131072 /prefetch:8
                          2⤵
                            PID:868
                          • 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 --mojo-platform-channel-handle=3528 --field-trial-handle=1348,i,10381174491199984685,13930553844737196264,131072 /prefetch:8
                            2⤵
                              PID:2472
                            • C:\Program Files\Google\Chrome\Application\chrome.exe
                              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --mojo-platform-channel-handle=3600 --field-trial-handle=1348,i,10381174491199984685,13930553844737196264,131072 /prefetch:1
                              2⤵
                                PID:2680
                              • 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 --mojo-platform-channel-handle=1468 --field-trial-handle=1348,i,10381174491199984685,13930553844737196264,131072 /prefetch:8
                                2⤵
                                  PID:2820
                                • C:\Program Files\Google\Chrome\Application\chrome.exe
                                  "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=renderer --display-capture-permissions-policy-allowed --disable-gpu-compositing --lang=en-US --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=13 --mojo-platform-channel-handle=3448 --field-trial-handle=1348,i,10381174491199984685,13930553844737196264,131072 /prefetch:1
                                  2⤵
                                    PID:2108
                                • C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe
                                  "C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe"
                                  1⤵
                                    PID:840

                                  Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

                                        Loading Replay Monitor...

                                        Downloads

                                        94308059B57B3142E455B38A6EB92015

                                        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
                                        • Size 342B
                                        • SHA256 e3e064a262dafb7329c5d14a3f8bb4f36cc277841a5015429e439b2d165a0978
                                        • MD5 SHA1 SHA512

                                        94308059B57B3142E455B38A6EB92015

                                        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
                                        • Size 342B
                                        • SHA256 5f76b2045a5c6a295babf20ea9a5cdf638c9dd025f57ed0d5588e3e732009d9b
                                        • MD5 SHA1 SHA512

                                        94308059B57B3142E455B38A6EB92015

                                        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
                                        • Size 342B
                                        • SHA256 2df16b2441c7842f241ebf76a1274b08462a0657bd210eba86b19455e850e304
                                        • MD5 SHA1 SHA512

                                        000006.dbtmp

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GCM Store\Encryption\000006.dbtmp
                                        • Size 16B
                                        • SHA256 4166bf17b2da789b0d0cc5c74203041d98005f5d4ef88c27e8281e00148cd611
                                        • MD5 SHA1 SHA512

                                        data_1

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\GPUCache\data_1
                                        • Size 264KB
                                        • SHA256 b1e963d702392fb7224786e7d56d43973e9b9efd1b89c17814d7c558ffc0cdec
                                        • MD5 SHA1 SHA512 SSDEEP

                                        TransportSecurity

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity
                                        • Size 1KB
                                        • SHA256 7baa410ad31de8c6f7dc097c79945925f366adb048c7d4457251908ada2a0a70
                                        • MD5 SHA1 SHA512

                                        TransportSecurity

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity
                                        • Size 1KB
                                        • SHA256 aa8ab791d36e521ca353254ecffbeb53100e90c3f5900c32a09443add8ad9dda
                                        • MD5 SHA1 SHA512

                                        TransportSecurity

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity
                                        • Size 364B
                                        • SHA256 51d2703a4e2f805786b9f76e3d6701dfe470aa691688ad668fae292ec5e2c88f
                                        • MD5 SHA1 SHA512

                                        Preferences

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                        • Size 6KB
                                        • SHA256 bc781529443ef820e3224c67a262b5d954370725d988d8ca3f826a7756d28649
                                        • MD5 SHA1 SHA512 SSDEEP

                                        Preferences

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                        • Size 6KB
                                        • SHA256 8247889a3c222d9c12796a6d274254ef411bb2d528f2954ec120d9e2521c52da
                                        • MD5 SHA1 SHA512 SSDEEP

                                        Preferences

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                        • Size 5KB
                                        • SHA256 0e7ce83c37de488697d13c3f2ffab1bc811bd7ff632363ce87fc60c8cc0b333e
                                        • MD5 SHA1 SHA512 SSDEEP

                                        Preferences

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                        • Size 6KB
                                        • SHA256 776ea32bc27d98dadd829282b30befefc1545580b868285d27993d083a18537b
                                        • MD5 SHA1 SHA512 SSDEEP

                                        000007.dbtmp

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Sync Data\LevelDB\000007.dbtmp
                                        • Size 16B
                                        • SHA256 8af72f43857550b01eab1019335772b367a17a9884a7a759fdf4fe6f272b90aa
                                        • MD5 SHA1 SHA512

                                        Web Data

                                        • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Web Data
                                        • Size 92KB
                                        • SHA256 33d48f5993f3679ec668a5e09c50611ad50cc39fff367c14964056c823693aca
                                        • MD5 SHA1 SHA512 SSDEEP

                                        CabF9DB.tmp

                                        • Path C:\Users\Admin\AppData\Local\Temp\CabF9DB.tmp
                                        • Size 67KB
                                        • SHA256 8714e7be9f9b6de26673d9d09bd4c9f41b1b27ae10b1d56a7ad83abd7430ebd4
                                        • MD5 SHA1 SHA512 SSDEEP

                                        TarFE93.tmp

                                        • Path C:\Users\Admin\AppData\Local\Temp\TarFE93.tmp
                                        • Size 160KB
                                        • SHA256 9a71fa0cb44aa51412b16a0bf83a275977ba4e807d022f78364338b99b3a3eed
                                        • MD5 SHA1 SHA512 SSDEEP

                                        nvbpln.exe

                                        • Path C:\Users\Admin\AppData\Local\Temp\nvbpln.exe
                                        • Size 303KB
                                        • SHA256 69c4efe455f5c826e1c9df05518546a282efd01513c5ac811a9399f74e494216
                                        • MD5 SHA1 SHA512 SSDEEP

                                        Bookmarks.txt

                                        • Path C:\Users\Admin\AppData\Roaming\44\Browsers\Firefox\Bookmarks.txt
                                        • Size 105B
                                        • SHA256 c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142
                                        • MD5 SHA1 SHA512

                                        590aee7bdd69b59b.customDestinations-ms

                                        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
                                        • Size 7KB
                                        • SHA256 f1ccfc0d6e49ad17d23e3cf0219f47b25660ddde916cde1a041344a3f4a2f60d
                                        • MD5 SHA1 SHA512 SSDEEP

                                        memory/844-603-0x0000000000810000-0x0000000000862000-memory.dmp

                                        memory/2024-518-0x00000000005B0000-0x00000000005BC000-memory.dmp

                                        memory/2024-27-0x000000001B250000-0x000000001B2D0000-memory.dmp

                                        memory/2024-0-0x000007FEF5743000-0x000007FEF5744000-memory.dmp

                                        memory/2024-28-0x000007FEF5743000-0x000007FEF5744000-memory.dmp

                                        memory/2024-29-0x000000001B250000-0x000000001B2D0000-memory.dmp

                                        memory/2024-1-0x0000000000DA0000-0x0000000000DB0000-memory.dmp

                                        memory/2460-8-0x0000000001FF0000-0x0000000001FF8000-memory.dmp

                                        memory/2460-7-0x000000001B740000-0x000000001BA22000-memory.dmp

                                        memory/2460-6-0x0000000002E20000-0x0000000002EA0000-memory.dmp

                                        memory/2732-561-0x0000000000D10000-0x0000000000D62000-memory.dmp

                                        memory/2800-15-0x00000000027F0000-0x00000000027F8000-memory.dmp

                                        memory/2800-14-0x000000001B5E0000-0x000000001B8C2000-memory.dmp