Analysis

  • max time kernel
    145s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-04-2024 21:11

General

  • Target

    45a379ee5c48fd976a80e2334eeaf27636d5948b6ec20f794a55ab257e22bd4c.dll

  • Size

    127KB

  • MD5

    685fd532cd11d534b3179c56dfab29cf

  • SHA1

    a83a3fec900e523541476d03f75e26a05b3d524f

  • SHA256

    45a379ee5c48fd976a80e2334eeaf27636d5948b6ec20f794a55ab257e22bd4c

  • SHA512

    2d9dc2ad4fa5b93d47c32e4fe5868dcb0340289da77c1dce6e25bc7aede4738298fc2597de0b2b883a1bd0953e2130dd565d22123504bd0b738508cce706d8b1

  • SSDEEP

    3072:0uFa0hGJ5yhppWMy7qWrH4CJWA+26begdDywQp3LnnBphN:+MUARQnr6X26fDvMbnBZ

Score
10/10

Malware Config

Signatures

  • Locky

    Ransomware strain released in 2016, with advanced features like anti-analysis.

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Sets desktop wallpaper using registry 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
  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Modifies Control Panel 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 25 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • 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\45a379ee5c48fd976a80e2334eeaf27636d5948b6ec20f794a55ab257e22bd4c.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1388
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\45a379ee5c48fd976a80e2334eeaf27636d5948b6ec20f794a55ab257e22bd4c.dll,#1
      2⤵
      • Sets desktop wallpaper using registry
      • Modifies Control Panel
      • Suspicious use of WriteProcessMemory
      PID:3556
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument C:\Users\Admin\Desktop\_WHAT_is.html
        3⤵
        • Enumerates system info in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of WriteProcessMemory
        PID:2888
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0x104,0x108,0x10c,0x78,0x110,0x7ffd5fd946f8,0x7ffd5fd94708,0x7ffd5fd94718
          4⤵
            PID:1056
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2144,18159879424235027809,12680446044606333309,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2160 /prefetch:2
            4⤵
              PID:2108
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=2144,18159879424235027809,12680446044606333309,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2212 /prefetch:3
              4⤵
              • Suspicious behavior: EnumeratesProcesses
              PID:2680
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=2144,18159879424235027809,12680446044606333309,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2884 /prefetch:8
              4⤵
                PID:2208
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2144,18159879424235027809,12680446044606333309,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3228 /prefetch:1
                4⤵
                  PID:3016
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2144,18159879424235027809,12680446044606333309,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3240 /prefetch:1
                  4⤵
                    PID:1592
                  • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2144,18159879424235027809,12680446044606333309,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5072 /prefetch:8
                    4⤵
                      PID:3588
                    • C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2144,18159879424235027809,12680446044606333309,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5072 /prefetch:8
                      4⤵
                      • Suspicious behavior: EnumeratesProcesses
                      PID:2028
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2144,18159879424235027809,12680446044606333309,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=2292 /prefetch:1
                      4⤵
                        PID:4160
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2144,18159879424235027809,12680446044606333309,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4708 /prefetch:1
                        4⤵
                          PID:2948
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2144,18159879424235027809,12680446044606333309,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5380 /prefetch:1
                          4⤵
                            PID:3944
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2144,18159879424235027809,12680446044606333309,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5360 /prefetch:1
                            4⤵
                              PID:208
                      • C:\Windows\system32\vssvc.exe
                        C:\Windows\system32\vssvc.exe
                        1⤵
                        • Suspicious use of AdjustPrivilegeToken
                        PID:5024
                      • C:\Windows\system32\vssadmin.exe
                        C:\Windows\system32\vssadmin.exe Delete Shadows /Quiet /All
                        1⤵
                        • Interacts with shadow copies
                        PID:3004
                      • C:\Windows\System32\CompPkgSrv.exe
                        C:\Windows\System32\CompPkgSrv.exe -Embedding
                        1⤵
                          PID:2296
                        • C:\Windows\System32\CompPkgSrv.exe
                          C:\Windows\System32\CompPkgSrv.exe -Embedding
                          1⤵
                            PID:2728

                          Network

                          MITRE ATT&CK Enterprise v15

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

                            Filesize

                            152B

                            MD5

                            279e783b0129b64a8529800a88fbf1ee

                            SHA1

                            204c62ec8cef8467e5729cad52adae293178744f

                            SHA256

                            3619c3b82a8cbdce37bfd88b66d4fdfcd728a1112b05eb26998bea527d187932

                            SHA512

                            32730d9124dd28c196bd4abcfd6a283a04553f3f6b050c057264bc883783d30d6602781137762e66e1f90847724d0e994bddf6e729de11a809f263f139023d3b

                          • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

                            Filesize

                            152B

                            MD5

                            cbec32729772aa6c576e97df4fef48f5

                            SHA1

                            6ec173d5313f27ba1e46ad66c7bbe7c0a9767dba

                            SHA256

                            d34331aa91a21e127bbe68f55c4c1898c429d9d43545c3253d317ffb105aa24e

                            SHA512

                            425b3638fed70da3bc16bba8b9878de528aca98669203f39473b931f487a614d3f66073b8c3d9bc2211e152b4bbdeceb2777001467954eec491f862912f3c7a0

                          • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

                            Filesize

                            6KB

                            MD5

                            ec7091f9200da775eee0e9967ed11990

                            SHA1

                            8a53e23c4f5cbedb20bb57079f52ce7edfd8a09b

                            SHA256

                            cb483dffed6e64c3d9930c6942c6aba61cc183bf5d2493059186bbce66666a3e

                            SHA512

                            ff644b8ce46097da7797e0c4b18f28c1efce4f49c8bc00e91d28951ea8f710187313b66ddbc071331e6ae3d9317211c892fd287b209962b225d72e5d78268cef

                          • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

                            Filesize

                            6KB

                            MD5

                            991afbbd7185b3a9080fd5fdeaba2092

                            SHA1

                            4c588cf5d192a1ef113778ccff2e555383221cee

                            SHA256

                            e6c08e9b52b4a73bdf20387b18f8a85883e655f7efbeaba2716079e6e99c9e8b

                            SHA512

                            8ace18e398cfeef3a6d515eca2b38bc4197db434fbf2305c516e3ff94e14f5dc654cdbc0cf86045e0e3396736fe23c793db72b9d43f14142daa4b208b8bd7c55

                          • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT

                            Filesize

                            16B

                            MD5

                            6752a1d65b201c13b62ea44016eb221f

                            SHA1

                            58ecf154d01a62233ed7fb494ace3c3d4ffce08b

                            SHA256

                            0861415cada612ea5834d56e2cf1055d3e63979b69eb71d32ae9ae394d8306cd

                            SHA512

                            9cfd838d3fb570b44fc3461623ab2296123404c6c8f576b0de0aabd9a6020840d4c9125eb679ed384170dbcaac2fa30dc7fa9ee5b77d6df7c344a0aa030e0389

                          • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State

                            Filesize

                            11KB

                            MD5

                            c7cbfbbea405bcea804eb705fec11041

                            SHA1

                            b8a1e0bde51c39e157350ff73d767aa91e8cb5b9

                            SHA256

                            f27f27607eb52196da24c26fd6bf167c6d4014314dff3a0ca298ee46a63b75c4

                            SHA512

                            ff1aaa24b2d889b1b3cd0bcf36219fe1442642add2e3f173b2308307193c4a60eb296048a67569e46ad5d24e10cb3af0e10993e65b6f8ab2b15902a905defa62

                          • C:\Users\Admin\Music\_4_WHAT_is.html

                            Filesize

                            9KB

                            MD5

                            23567188a9a907538d5149f0766274d6

                            SHA1

                            35a9a1136fb0d96f4e68e2cbd40fe4106f689ab4

                            SHA256

                            b8d03086c7a28a185685dde5d97d673e905559750c756f8a011c9264b9b6c38e

                            SHA512

                            ceac44dbd7179b04e8b35c5d0a696dd3213f012f3e35f68c66c817aba70401999f0e17c23c582a6eefe4f0f912fe8411db7b27b3d228894d4e836fb10b1de5f1

                          • \??\pipe\LOCAL\crashpad_2888_EABMQIBXXDPWDXOY

                            MD5

                            d41d8cd98f00b204e9800998ecf8427e

                            SHA1

                            da39a3ee5e6b4b0d3255bfef95601890afd80709

                            SHA256

                            e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                            SHA512

                            cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                          • memory/3556-0-0x0000000074960000-0x0000000074989000-memory.dmp

                            Filesize

                            164KB

                          • memory/3556-8-0x0000000074960000-0x0000000074989000-memory.dmp

                            Filesize

                            164KB

                          • memory/3556-6-0x0000000000570000-0x0000000000571000-memory.dmp

                            Filesize

                            4KB

                          • memory/3556-4-0x0000000074960000-0x0000000074989000-memory.dmp

                            Filesize

                            164KB

                          • memory/3556-2-0x0000000074960000-0x0000000074989000-memory.dmp

                            Filesize

                            164KB

                          • memory/3556-1-0x0000000000570000-0x0000000000571000-memory.dmp

                            Filesize

                            4KB