Resubmissions

07-06-2024 18:59

240607-xncc5acb8y 10

07-06-2024 18:55

240607-xk2tlsdb53 10

Analysis

  • max time kernel
    148s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    07-06-2024 18:59

General

  • Target

    femordial.dll

  • Size

    36.1MB

  • MD5

    38bf550f8d73ea9791d7778d9b6b44a8

  • SHA1

    67bf70a4d78f9f18b1af30cd9c85c632b52188c1

  • SHA256

    ed6566cd8828d0d9a7bd2bd7731df7703977d9b18fa7ede31bb8b1835b12da78

  • SHA512

    cfff6d55b90a42be22d09aaf30eed718b71fff8bfddab2404e968359a18ab8aec679a4ca85e144d3527602fd515a03724e897addd68865e796b0a387f582fd7f

  • SSDEEP

    393216:g4S82OrtN+zJkGsF20dH5ZXtpKjzw1QxgvLqmNAmjpy:7OOrtN+zJkGsF2OZZXuv4GcLjp

Score
8/10

Malware Config

Signatures

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell and hide display window.

  • Loads dropped DLL 1 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 23 IoCs
  • Drops file in Windows directory 12 IoCs
  • Program crash 1 IoCs
  • Modifies data under HKEY_USERS 46 IoCs
  • Modifies registry class 35 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of WriteProcessMemory 21 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.

  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\femordial.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2140
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\femordial.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1708
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1708 -s 268
        3⤵
        • Program crash
        PID:2224
  • 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=1296 --field-trial-handle=1192,i,17039147612780266031,14761863587135020153,131072 /prefetch:2
    1⤵
      PID:2980
    • 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=1 --renderer-client-id=8 --mojo-platform-channel-handle=3216 --field-trial-handle=1192,i,17039147612780266031,14761863587135020153,131072 /prefetch:1
      1⤵
        PID:948
      • 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=3452 --field-trial-handle=1192,i,17039147612780266031,14761863587135020153,131072 /prefetch:8
        1⤵
          PID:1944
        • 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=3600 --field-trial-handle=1192,i,17039147612780266031,14761863587135020153,131072 /prefetch:8
          1⤵
            PID:1616
          • 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=2744 --field-trial-handle=1192,i,17039147612780266031,14761863587135020153,131072 /prefetch:8
            1⤵
              PID:1488
            • 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=1 --renderer-client-id=12 --mojo-platform-channel-handle=3720 --field-trial-handle=1192,i,17039147612780266031,14761863587135020153,131072 /prefetch:1
              1⤵
                PID:568
              • 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=1 --renderer-client-id=13 --mojo-platform-channel-handle=3868 --field-trial-handle=1192,i,17039147612780266031,14761863587135020153,131072 /prefetch:1
                1⤵
                  PID:1960
                • 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=1 --renderer-client-id=14 --mojo-platform-channel-handle=2724 --field-trial-handle=1192,i,17039147612780266031,14761863587135020153,131072 /prefetch:1
                  1⤵
                    PID:1684
                  • 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=3536 --field-trial-handle=1192,i,17039147612780266031,14761863587135020153,131072 /prefetch:8
                    1⤵
                      PID:768
                    • 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=1 --renderer-client-id=16 --mojo-platform-channel-handle=3544 --field-trial-handle=1192,i,17039147612780266031,14761863587135020153,131072 /prefetch:1
                      1⤵
                        PID:1192
                      • 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=1 --renderer-client-id=17 --mojo-platform-channel-handle=3728 --field-trial-handle=1192,i,17039147612780266031,14761863587135020153,131072 /prefetch:1
                        1⤵
                          PID:2984
                        • 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=4320 --field-trial-handle=1192,i,17039147612780266031,14761863587135020153,131072 /prefetch:8
                          1⤵
                            PID:2680
                          • 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=1 --renderer-client-id=19 --mojo-platform-channel-handle=4284 --field-trial-handle=1192,i,17039147612780266031,14761863587135020153,131072 /prefetch:1
                            1⤵
                              PID:1972
                            • 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=1 --renderer-client-id=20 --mojo-platform-channel-handle=4080 --field-trial-handle=1192,i,17039147612780266031,14761863587135020153,131072 /prefetch:1
                              1⤵
                                PID:1148
                              • 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=1 --renderer-client-id=21 --mojo-platform-channel-handle=4016 --field-trial-handle=1192,i,17039147612780266031,14761863587135020153,131072 /prefetch:1
                                1⤵
                                  PID:472
                                • 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=1 --renderer-client-id=22 --mojo-platform-channel-handle=2728 --field-trial-handle=1192,i,17039147612780266031,14761863587135020153,131072 /prefetch:1
                                  1⤵
                                    PID:1672
                                  • 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=1 --renderer-client-id=23 --mojo-platform-channel-handle=3756 --field-trial-handle=1192,i,17039147612780266031,14761863587135020153,131072 /prefetch:1
                                    1⤵
                                      PID:1992
                                    • 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=1 --renderer-client-id=24 --mojo-platform-channel-handle=4124 --field-trial-handle=1192,i,17039147612780266031,14761863587135020153,131072 /prefetch:1
                                      1⤵
                                        PID:2248
                                      • 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=5112 --field-trial-handle=1192,i,17039147612780266031,14761863587135020153,131072 /prefetch:8
                                        1⤵
                                          PID:2676
                                        • C:\Program Files\Google\Chrome\Application\chrome.exe
                                          "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=quarantine.mojom.Quarantine --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2024 --field-trial-handle=1192,i,17039147612780266031,14761863587135020153,131072 /prefetch:8
                                          1⤵
                                            PID:2272
                                          • C:\Windows\System32\msiexec.exe
                                            "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\Downloads\JJSploit_7.3.0_x86_en-US.msi"
                                            1⤵
                                            • Enumerates connected drives
                                            • Suspicious use of AdjustPrivilegeToken
                                            • Suspicious use of FindShellTrayWindow
                                            PID:2920
                                          • C:\Windows\system32\msiexec.exe
                                            C:\Windows\system32\msiexec.exe /V
                                            1⤵
                                            • Enumerates connected drives
                                            • Drops file in Program Files directory
                                            • Drops file in Windows directory
                                            • Modifies data under HKEY_USERS
                                            • Modifies registry class
                                            • Suspicious behavior: EnumeratesProcesses
                                            • Suspicious use of AdjustPrivilegeToken
                                            • Suspicious use of WriteProcessMemory
                                            PID:2760
                                            • C:\Windows\syswow64\MsiExec.exe
                                              C:\Windows\syswow64\MsiExec.exe -Embedding 898124D0002E27ADC4DBC72717815A5E C
                                              2⤵
                                              • Loads dropped DLL
                                              PID:1944
                                            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                                              powershell.exe -NoProfile -windowstyle hidden try { [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12 } catch {}; Invoke-WebRequest -Uri "https://go.microsoft.com/fwlink/p/?LinkId=2124703" -OutFile "$env:TEMP\MicrosoftEdgeWebview2Setup.exe" ; Start-Process -FilePath "$env:TEMP\MicrosoftEdgeWebview2Setup.exe" -ArgumentList ('/silent', '/install') -Wait
                                              2⤵
                                              • Command and Scripting Interpreter: PowerShell
                                              • Drops file in Program Files directory
                                              • Suspicious behavior: EnumeratesProcesses
                                              PID:1748
                                          • C:\Windows\system32\vssvc.exe
                                            C:\Windows\system32\vssvc.exe
                                            1⤵
                                              PID:2140
                                            • C:\Windows\system32\taskmgr.exe
                                              "C:\Windows\system32\taskmgr.exe" /4
                                              1⤵
                                              • Suspicious behavior: EnumeratesProcesses
                                              • Suspicious behavior: GetForegroundWindowSpam
                                              • Suspicious use of FindShellTrayWindow
                                              • Suspicious use of SendNotifyMessage
                                              PID:2976
                                            • C:\Windows\system32\DrvInst.exe
                                              DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000005B8" "000000000000059C"
                                              1⤵
                                              • Drops file in Windows directory
                                              • Modifies data under HKEY_USERS
                                              PID:2016
                                            • C:\Windows\explorer.exe
                                              "C:\Windows\explorer.exe"
                                              1⤵
                                                PID:1948
                                              • C:\Windows\system32\AUDIODG.EXE
                                                C:\Windows\system32\AUDIODG.EXE 0x49c
                                                1⤵
                                                  PID:2612

                                                Network

                                                MITRE ATT&CK Enterprise v15

                                                Replay Monitor

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                                                Downloads

                                                • C:\Users\Admin\AppData\Local\Temp\MSI6577.tmp

                                                  Filesize

                                                  113KB

                                                  MD5

                                                  4fdd16752561cf585fed1506914d73e0

                                                  SHA1

                                                  f00023b9ae3c8ce5b7bb92f25011eaebe6f9d424

                                                  SHA256

                                                  aecd2d2fe766f6d439acc2bbf1346930ecc535012cf5ad7b3273d2875237b7e7

                                                  SHA512

                                                  3695e7eb1e35ec959243a91ab5b4454eb59aeef0f2699aa5de8e03de8fbb89f756a89130526da5c08815408cb700284a17936522ad2cad594c3e6e9d18a3f600

                                                • memory/2976-4-0x0000000140000000-0x00000001405E8000-memory.dmp

                                                  Filesize

                                                  5.9MB

                                                • memory/2976-5-0x0000000140000000-0x00000001405E8000-memory.dmp

                                                  Filesize

                                                  5.9MB

                                                • memory/2976-6-0x0000000140000000-0x00000001405E8000-memory.dmp

                                                  Filesize

                                                  5.9MB

                                                • memory/2976-7-0x0000000140000000-0x00000001405E8000-memory.dmp

                                                  Filesize

                                                  5.9MB