Resubmissions

18/03/2024, 14:39

240318-r1efcsbg4x10

18/03/2024, 14:35

240318-rx8vssbf8110

Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/03/2024, 14:35

General

  • Target
    celex.exe
  • Size 227KB
  • Sample240318-rx8vssbf81
  • SHA256 d94fca1806e2fd56a8d56dd4599ba69f39633a0247b78922773da7504d51cf19
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10

Malware Config

Signatures

  • Detect Umbral payload 1 IoCs
  • Umbral

    Umbral stealer is an opensource moduler stealer written in C#.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 26 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\celex.exe
    "C:\Users\Admin\AppData\Local\Temp\celex.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1236
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic.exe" csproduct get uuid
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:5088
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:3884
    • 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:4432
      • 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=0x11c,0x120,0x124,0xf8,0x128,0x7fff14059758,0x7fff14059768,0x7fff14059778
        2⤵
          PID:1504
        • 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=1768 --field-trial-handle=1932,i,1613203252454439802,10894082045873653182,131072 /prefetch:2
          2⤵
            PID:4024
          • 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=2152 --field-trial-handle=1932,i,1613203252454439802,10894082045873653182,131072 /prefetch:8
            2⤵
              PID:3328
            • 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=2220 --field-trial-handle=1932,i,1613203252454439802,10894082045873653182,131072 /prefetch:8
              2⤵
                PID:2896
              • 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=3088 --field-trial-handle=1932,i,1613203252454439802,10894082045873653182,131072 /prefetch:1
                2⤵
                  PID:4416
                • 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=3120 --field-trial-handle=1932,i,1613203252454439802,10894082045873653182,131072 /prefetch:1
                  2⤵
                    PID:2076
                  • 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=7 --mojo-platform-channel-handle=4624 --field-trial-handle=1932,i,1613203252454439802,10894082045873653182,131072 /prefetch:1
                    2⤵
                      PID:3660
                    • 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 --mojo-platform-channel-handle=5160 --field-trial-handle=1932,i,1613203252454439802,10894082045873653182,131072 /prefetch:8
                      2⤵
                        PID:5356
                      • 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=5152 --field-trial-handle=1932,i,1613203252454439802,10894082045873653182,131072 /prefetch:8
                        2⤵
                          PID:5440
                        • 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=5280 --field-trial-handle=1932,i,1613203252454439802,10894082045873653182,131072 /prefetch:8
                          2⤵
                            PID:5448
                          • 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=11 --mojo-platform-channel-handle=2860 --field-trial-handle=1932,i,1613203252454439802,10894082045873653182,131072 /prefetch:1
                            2⤵
                              PID:5540
                            • 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=12 --mojo-platform-channel-handle=4860 --field-trial-handle=1932,i,1613203252454439802,10894082045873653182,131072 /prefetch:1
                              2⤵
                                PID:5600
                              • 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=13 --mojo-platform-channel-handle=5384 --field-trial-handle=1932,i,1613203252454439802,10894082045873653182,131072 /prefetch:1
                                2⤵
                                  PID:5252
                                • 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=14 --mojo-platform-channel-handle=5572 --field-trial-handle=1932,i,1613203252454439802,10894082045873653182,131072 /prefetch:1
                                  2⤵
                                    PID:5176
                                  • 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=15 --mojo-platform-channel-handle=5772 --field-trial-handle=1932,i,1613203252454439802,10894082045873653182,131072 /prefetch:1
                                    2⤵
                                      PID:1128
                                    • 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=16 --mojo-platform-channel-handle=1128 --field-trial-handle=1932,i,1613203252454439802,10894082045873653182,131072 /prefetch:1
                                      2⤵
                                        PID:1396
                                      • 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=17 --mojo-platform-channel-handle=1764 --field-trial-handle=1932,i,1613203252454439802,10894082045873653182,131072 /prefetch:1
                                        2⤵
                                          PID:4424
                                      • 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:4212

                                        Network

                                              MITRE ATT&CK Enterprise v15

                                              Replay Monitor

                                              Loading Replay Monitor...

                                              Downloads

                                              f_000001

                                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Cache\Cache_Data\f_000001
                                              • Size 30KB
                                              • SHA256 05a43f3e84b7439b3d5e193079c665dd46ba639a69f4ba8c5819c89294e5e6a5
                                              • 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 432B
                                              • SHA256 e6c989ddf612eb33d96b6edbf17c75118183a3d021d135528a110706e1bccb9b
                                              • MD5 SHA1 SHA512

                                              Network Persistent State

                                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\Network Persistent State
                                              • Size 1KB
                                              • SHA256 91e603aa8d9e12613ae8f3fd719ec150a5e3838869d23f1155ef6c6f2870d558
                                              • MD5 SHA1 SHA512

                                              TransportSecurity

                                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity
                                              • Size 371B
                                              • SHA256 e9d6044e07f09f16d64ef8d3b8aea095d390d322788f8f40ec3f178725a92919
                                              • MD5 SHA1 SHA512

                                              TransportSecurity

                                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity
                                              • Size 705B
                                              • SHA256 1b6166f748ca42f7ba6923e47e7fe5599f3ae85332881b4181288b92cbf466fc
                                              • MD5 SHA1 SHA512

                                              TransportSecurity

                                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity
                                              • Size 705B
                                              • SHA256 41a8f0b09f66278aaabf08a23399c084f3466f6ec62f81f5eee5729eef5d28b5
                                              • MD5 SHA1 SHA512

                                              TransportSecurity

                                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity
                                              • Size 705B
                                              • SHA256 d2e33e4253d3c3fe89b43f2af18efa392c98d1c588542d9540ab51369320a469
                                              • MD5 SHA1 SHA512

                                              TransportSecurity

                                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\TransportSecurity
                                              • Size 705B
                                              • SHA256 4e757ec06bb92cf7426129b76e5ba1b35da7c75421615bd16559533d766cd090
                                              • MD5 SHA1 SHA512

                                              Preferences

                                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                              • Size 6KB
                                              • SHA256 f984bc70389deee063e1bcfbe55334691ba244bb0359bba37bc1975a6cb13d98
                                              • MD5 SHA1 SHA512 SSDEEP

                                              Preferences

                                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                              • Size 6KB
                                              • SHA256 551af33c9d6cdda4be2711d0ce18addbc25f77b7cb5196c4cc1614f6be3f42d4
                                              • MD5 SHA1 SHA512 SSDEEP

                                              Preferences

                                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                              • Size 6KB
                                              • SHA256 b892ece922b60f13cdec83054bd6733f37bd168c30703ba831db6e3c3710b7de
                                              • MD5 SHA1 SHA512 SSDEEP

                                              Preferences

                                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                              • Size 6KB
                                              • SHA256 9e4cb827209bdbc22047b774362bd7e2c941aa302ff5ce0d1d07bd7b690af411
                                              • MD5 SHA1 SHA512 SSDEEP

                                              Preferences

                                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                              • Size 6KB
                                              • SHA256 64094f12acefb0fdeece0d5b510066fef4aa14f3240b027fced9a8e45aca05cf
                                              • MD5 SHA1 SHA512 SSDEEP

                                              Preferences

                                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                              • Size 6KB
                                              • SHA256 31218253dc96b73ea179100620f5b1e1328b09320dbfe8a38c12ab18d52da00e
                                              • MD5 SHA1 SHA512 SSDEEP

                                              Secure Preferences

                                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Secure Preferences
                                              • Size 15KB
                                              • SHA256 fef68537a31ac7770fe35640f3130e38f0afaf57e4d58f8d27e8cb0618d8fe72
                                              • MD5 SHA1 SHA512 SSDEEP

                                              Local State

                                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                              • Size 258KB
                                              • SHA256 04abbb89b267f480a37916cbc91961f44291553b47dc6ee57f969157c39f38c3
                                              • MD5 SHA1 SHA512 SSDEEP

                                              Local State

                                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                              • Size 258KB
                                              • SHA256 b44c183dc2b110c130290b3b465c49ce0e78ec805d880519f69c5bbc65ddc5f6
                                              • MD5 SHA1 SHA512 SSDEEP

                                              persisted_first_party_sets.json

                                              • Path C:\Users\Admin\AppData\Local\Google\Chrome\User Data\persisted_first_party_sets.json
                                              • Size 2B
                                              • SHA256 44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a
                                              • MD5 SHA1 SHA512

                                              memory/1236-4-0x00007FFF152B0000-0x00007FFF15D71000-memory.dmp

                                              memory/1236-2-0x000002BDFD1C0000-0x000002BDFD1D0000-memory.dmp

                                              memory/1236-0-0x000002BDE2CF0000-0x000002BDE2D30000-memory.dmp

                                              memory/1236-1-0x00007FFF152B0000-0x00007FFF15D71000-memory.dmp