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Resubmissions

02/05/2024, 02:59

240502-dg26eshb97 10

02/05/2024, 02:36

240502-c3k9csef7t 10

Analysis

  • max time kernel
    290s
  • max time network
    309s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/05/2024, 02:59

General

  • Target

    a ton of ya/ya - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy -.exe

  • Size

    63KB

  • MD5

    222c2d239f4c8a1d73c736c9cc712807

  • SHA1

    c3aa61bd6f8cc640bcfa74c40d9283c9c08c7b3c

  • SHA256

    ff43049677c57277f12a1d97f02af3029d7b75b5ad40303a28f1b0452997969d

  • SHA512

    1f2fea85e45e93916306c234b916d6b4b200dac9656e44f4555f825dd8677cb5e927bd5e7a74bf2fb2f6972a3e6e2d294a6104add162ba3d53a0e6cfedef6a02

  • SSDEEP

    1536:tJc/5q1qoR5PDdAZcIED4VuCkbFybjQ9f0jQRmONww+W:7c/iqoJekbFEQ9W+mONP+W

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:23638

209.25.140.1:5525:23638

bring-recorder.gl.at.ply.gg:23638

action-yesterday.gl.at.ply.gg:23638

147.185.221.19:23638

then-wheel.gl.at.ply.gg::23638

then-wheel.gl.at.ply.gg:23638

teen-modes.gl.at.ply.gg:23638

Attributes
  • Install_directory

    %LocalAppData%

  • install_file

    uwumonster.exe

Signatures

  • Detect Xworm Payload 2 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Checks computer location settings 2 TTPs 4 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 2 IoCs
  • Executes dropped EXE 19 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 2 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating 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.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of WriteProcessMemory 47 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\a ton of ya\ya - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy -.exe
    "C:\Users\Admin\AppData\Local\Temp\a ton of ya\ya - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy - Copy -.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4296
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "uwumonster" /tr "C:\Users\Admin\AppData\Local\uwumonster.exe"
      2⤵
      • Creates scheduled task(s)
      PID:2012
    • C:\Users\Admin\AppData\Local\Temp\jaddmt.exe
      "C:\Users\Admin\AppData\Local\Temp\jaddmt.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1252
      • C:\Users\Admin\AppData\Local\Temp\jaddmt.exe
        "C:\Users\Admin\AppData\Local\Temp\jaddmt.exe" /watchdog
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        PID:3020
      • C:\Users\Admin\AppData\Local\Temp\jaddmt.exe
        "C:\Users\Admin\AppData\Local\Temp\jaddmt.exe" /watchdog
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        PID:5012
      • C:\Users\Admin\AppData\Local\Temp\jaddmt.exe
        "C:\Users\Admin\AppData\Local\Temp\jaddmt.exe" /watchdog
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        PID:688
      • C:\Users\Admin\AppData\Local\Temp\jaddmt.exe
        "C:\Users\Admin\AppData\Local\Temp\jaddmt.exe" /watchdog
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        PID:3308
      • C:\Users\Admin\AppData\Local\Temp\jaddmt.exe
        "C:\Users\Admin\AppData\Local\Temp\jaddmt.exe" /watchdog
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        PID:2860
      • C:\Users\Admin\AppData\Local\Temp\jaddmt.exe
        "C:\Users\Admin\AppData\Local\Temp\jaddmt.exe" /main
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Writes to the Master Boot Record (MBR)
        • Suspicious use of WriteProcessMemory
        PID:3608
        • C:\Windows\SysWOW64\notepad.exe
          "C:\Windows\System32\notepad.exe" \note.txt
          4⤵
            PID:3868
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument http://google.co.ck/search?q=john+cena+midi+legit+not+converted
            4⤵
              PID:532
        • C:\Users\Admin\AppData\Local\Temp\oyioui.exe
          "C:\Users\Admin\AppData\Local\Temp\oyioui.exe"
          2⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious use of WriteProcessMemory
          PID:908
          • C:\Users\Admin\AppData\Local\Temp\oyioui.exe
            "C:\Users\Admin\AppData\Local\Temp\oyioui.exe" /watchdog
            3⤵
            • Executes dropped EXE
            PID:3424
          • C:\Users\Admin\AppData\Local\Temp\oyioui.exe
            "C:\Users\Admin\AppData\Local\Temp\oyioui.exe" /watchdog
            3⤵
            • Executes dropped EXE
            PID:4372
          • C:\Users\Admin\AppData\Local\Temp\oyioui.exe
            "C:\Users\Admin\AppData\Local\Temp\oyioui.exe" /watchdog
            3⤵
            • Executes dropped EXE
            PID:4864
          • C:\Users\Admin\AppData\Local\Temp\oyioui.exe
            "C:\Users\Admin\AppData\Local\Temp\oyioui.exe" /watchdog
            3⤵
            • Executes dropped EXE
            PID:572
          • C:\Users\Admin\AppData\Local\Temp\oyioui.exe
            "C:\Users\Admin\AppData\Local\Temp\oyioui.exe" /watchdog
            3⤵
            • Executes dropped EXE
            PID:3244
          • C:\Users\Admin\AppData\Local\Temp\oyioui.exe
            "C:\Users\Admin\AppData\Local\Temp\oyioui.exe" /main
            3⤵
            • Executes dropped EXE
            • Writes to the Master Boot Record (MBR)
            PID:3772
            • C:\Windows\SysWOW64\notepad.exe
              "C:\Windows\System32\notepad.exe" \note.txt
              4⤵
                PID:2596
        • C:\Users\Admin\AppData\Local\uwumonster.exe
          C:\Users\Admin\AppData\Local\uwumonster.exe
          1⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:2492
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4136 --field-trial-handle=2744,i,16362475727591565961,3676688664819797550,262144 --variations-seed-version /prefetch:8
          1⤵
            PID:3036
          • C:\Users\Admin\AppData\Local\uwumonster.exe
            C:\Users\Admin\AppData\Local\uwumonster.exe
            1⤵
            • Executes dropped EXE
            • Suspicious use of AdjustPrivilegeToken
            PID:2184
          • C:\Users\Admin\AppData\Local\uwumonster.exe
            C:\Users\Admin\AppData\Local\uwumonster.exe
            1⤵
            • Executes dropped EXE
            • Suspicious use of AdjustPrivilegeToken
            PID:2892
          • C:\Users\Admin\AppData\Local\uwumonster.exe
            C:\Users\Admin\AppData\Local\uwumonster.exe
            1⤵
            • Executes dropped EXE
            • Suspicious use of AdjustPrivilegeToken
            PID:2340
          • C:\Users\Admin\AppData\Local\uwumonster.exe
            C:\Users\Admin\AppData\Local\uwumonster.exe
            1⤵
            • Executes dropped EXE
            • Suspicious use of AdjustPrivilegeToken
            PID:3004
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --no-appcompat-clear --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=18 --mojo-platform-channel-handle=5016 --field-trial-handle=2744,i,16362475727591565961,3676688664819797550,262144 --variations-seed-version /prefetch:1
            1⤵
              PID:3464
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --no-appcompat-clear --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=19 --mojo-platform-channel-handle=4060 --field-trial-handle=2744,i,16362475727591565961,3676688664819797550,262144 --variations-seed-version /prefetch:1
              1⤵
                PID:3036
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=5540 --field-trial-handle=2744,i,16362475727591565961,3676688664819797550,262144 --variations-seed-version /prefetch:8
                1⤵
                  PID:2060
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --no-appcompat-clear --disable-gpu-compositing --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=21 --mojo-platform-channel-handle=4608 --field-trial-handle=2744,i,16362475727591565961,3676688664819797550,262144 --variations-seed-version /prefetch:1
                  1⤵
                    PID:752
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --no-appcompat-clear --disable-gpu-compositing --lang=en-US --js-flags=--ms-user-locale= --device-scale-factor=1 --num-raster-threads=1 --renderer-client-id=22 --mojo-platform-channel-handle=4760 --field-trial-handle=2744,i,16362475727591565961,3676688664819797550,262144 --variations-seed-version /prefetch:1
                    1⤵
                      PID:3576

                    Network

                    MITRE ATT&CK Enterprise v15

                    Replay Monitor

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                    Downloads

                    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\uwumonster.exe.log

                      Filesize

                      654B

                      MD5

                      2ff39f6c7249774be85fd60a8f9a245e

                      SHA1

                      684ff36b31aedc1e587c8496c02722c6698c1c4e

                      SHA256

                      e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

                      SHA512

                      1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

                    • C:\Users\Admin\AppData\Local\Temp\jaddmt.exe

                      Filesize

                      16KB

                      MD5

                      1d5ad9c8d3fee874d0feb8bfac220a11

                      SHA1

                      ca6d3f7e6c784155f664a9179ca64e4034df9595

                      SHA256

                      3872c12d31fc9825e8661ac01ecee2572460677afbc7093f920a8436a42e28ff

                      SHA512

                      c8246f4137416be33b6d1ac89f2428b7c44d9376ac8489a9fbf65ef128a6c53fb50479e1e400c8e201c8611992ab1d6c1bd3d6cece89013edb4d35cdd22305b1

                    • C:\Users\Admin\AppData\Local\uwumonster.exe

                      Filesize

                      63KB

                      MD5

                      222c2d239f4c8a1d73c736c9cc712807

                      SHA1

                      c3aa61bd6f8cc640bcfa74c40d9283c9c08c7b3c

                      SHA256

                      ff43049677c57277f12a1d97f02af3029d7b75b5ad40303a28f1b0452997969d

                      SHA512

                      1f2fea85e45e93916306c234b916d6b4b200dac9656e44f4555f825dd8677cb5e927bd5e7a74bf2fb2f6972a3e6e2d294a6104add162ba3d53a0e6cfedef6a02

                    • C:\note.txt

                      Filesize

                      218B

                      MD5

                      afa6955439b8d516721231029fb9ca1b

                      SHA1

                      087a043cc123c0c0df2ffadcf8e71e3ac86bbae9

                      SHA256

                      8e9f20f6864c66576536c0b866c6ffdcf11397db67fe120e972e244c3c022270

                      SHA512

                      5da21a31fbc4e8250dffed30f66b896bdf007ac91948140334fe36a3f010e1bac3e70a07e9f3eb9da8633189091fd5cadcabbaacd3e01da0fe7ae28a11b3dddf

                    • memory/2492-11-0x00007FF82DDE0000-0x00007FF82E8A1000-memory.dmp

                      Filesize

                      10.8MB

                    • memory/2492-13-0x00007FF82DDE0000-0x00007FF82E8A1000-memory.dmp

                      Filesize

                      10.8MB

                    • memory/4296-0-0x00007FF82DDE3000-0x00007FF82DDE5000-memory.dmp

                      Filesize

                      8KB

                    • memory/4296-1-0x0000000000D10000-0x0000000000D26000-memory.dmp

                      Filesize

                      88KB

                    • memory/4296-6-0x00007FF82DDE0000-0x00007FF82E8A1000-memory.dmp

                      Filesize

                      10.8MB

                    • memory/4296-7-0x00007FF82DDE3000-0x00007FF82DDE5000-memory.dmp

                      Filesize

                      8KB

                    • memory/4296-8-0x00007FF82DDE0000-0x00007FF82E8A1000-memory.dmp

                      Filesize

                      10.8MB