Analysis

  • max time kernel
    690s
  • max time network
    620s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    30-06-2024 20:33

General

  • Target

    https://cdn.discordapp.com/attachments/1253476705885093940/1253601576019562569/catgirl_1.21.dll?ex=6682f932&is=6681a7b2&hm=ecec821da5fe1d40f601755020a4bf92cf63e3d286f240bfe40c204d20a10cbf&

Score
8/10

Malware Config

Signatures

  • Downloads MZ/PE file
  • Themida packer 1 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 36 IoCs
  • Suspicious use of SendNotifyMessage 24 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe" --disable-background-networking --disable-component-update --simulate-outdated-no-au='Tue, 31 Dec 2099 23:59:59 GMT' --single-argument https://cdn.discordapp.com/attachments/1253476705885093940/1253601576019562569/catgirl_1.21.dll?ex=6682f932&is=6681a7b2&hm=ecec821da5fe1d40f601755020a4bf92cf63e3d286f240bfe40c204d20a10cbf&
    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:1004
    • 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=0xcc,0xd0,0xd4,0xa8,0xd8,0x7ff8964d9758,0x7ff8964d9768,0x7ff8964d9778
      2⤵
        PID:2420
      • 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=1612 --field-trial-handle=1740,i,13185136708851476715,15412022047040028993,131072 /prefetch:2
        2⤵
          PID:4432
        • 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=1980 --field-trial-handle=1740,i,13185136708851476715,15412022047040028993,131072 /prefetch:8
          2⤵
            PID:3656
          • 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=2004 --field-trial-handle=1740,i,13185136708851476715,15412022047040028993,131072 /prefetch:8
            2⤵
              PID:1768
            • 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=2828 --field-trial-handle=1740,i,13185136708851476715,15412022047040028993,131072 /prefetch:1
              2⤵
                PID:2644
              • 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=2836 --field-trial-handle=1740,i,13185136708851476715,15412022047040028993,131072 /prefetch:1
                2⤵
                  PID:1324
                • 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=4936 --field-trial-handle=1740,i,13185136708851476715,15412022047040028993,131072 /prefetch:8
                  2⤵
                    PID:2224
                  • 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=5212 --field-trial-handle=1740,i,13185136708851476715,15412022047040028993,131072 /prefetch:8
                    2⤵
                      PID:1464
                    • C:\Program Files\Google\Chrome\Application\chrome.exe
                      "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=5336 --field-trial-handle=1740,i,13185136708851476715,15412022047040028993,131072 /prefetch:8
                      2⤵
                        PID:4912
                      • C:\Program Files\Google\Chrome\Application\chrome.exe
                        "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=5544 --field-trial-handle=1740,i,13185136708851476715,15412022047040028993,131072 /prefetch:8
                        2⤵
                          PID:1320
                        • 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=5576 --field-trial-handle=1740,i,13185136708851476715,15412022047040028993,131072 /prefetch:8
                          2⤵
                            PID:2676
                          • C:\Program Files\Google\Chrome\Application\chrome.exe
                            "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=5320 --field-trial-handle=1740,i,13185136708851476715,15412022047040028993,131072 /prefetch:8
                            2⤵
                              PID:3396
                            • C:\Program Files\Google\Chrome\Application\chrome.exe
                              "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=5596 --field-trial-handle=1740,i,13185136708851476715,15412022047040028993,131072 /prefetch:8
                              2⤵
                                PID:1640
                              • C:\Program Files\Google\Chrome\Application\chrome.exe
                                "C:\Program Files\Google\Chrome\Application\chrome.exe" --type=gpu-process --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=4318 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.15063.0 --gpu-preferences=UAAAAAAAAADoAAAYAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAACQAAAAAAAAAAAAAAAAAAAAAAAAAEgAAAAAAAAASAAAAAAAAAAYAAAAAgAAABAAAAAAAAAAGAAAAAAAAAAQAAAAAAAAAAAAAAAOAAAAEAAAAAAAAAABAAAADgAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=3960 --field-trial-handle=1740,i,13185136708851476715,15412022047040028993,131072 /prefetch:2
                                2⤵
                                • Suspicious behavior: EnumeratesProcesses
                                PID:4544
                            • 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:2184
                              • C:\Windows\System32\rundll32.exe
                                C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                                1⤵
                                  PID:4176
                                • C:\Windows\System32\cmd.exe
                                  "C:\Windows\System32\cmd.exe"
                                  1⤵
                                    PID:4784

                                  Network

                                  MITRE ATT&CK Matrix ATT&CK v13

                                  Discovery

                                  Query Registry

                                  1
                                  T1012

                                  System Information Discovery

                                  1
                                  T1082

                                  Replay Monitor

                                  Loading Replay Monitor...

                                  Downloads

                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Network\Network Persistent State
                                    Filesize

                                    678B

                                    MD5

                                    f4d7d2e0a65e33fb8c59e98fff1d4a33

                                    SHA1

                                    4e0ac303e388274ed8c425e252e62b0e0ebdc6bb

                                    SHA256

                                    9308071bead1b3ad5f2e7dcae9db5e7aafc7c509d0eb93d497fcc520a58208c8

                                    SHA512

                                    fbf02c7d0a14d8926212f5a31ce28885f7b1c9a554c18cc050873252958047d1ba58d7a2e5917b752c30bd5433e264542c746008c1dc29e34efc5aff64f35588

                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                    Filesize

                                    5KB

                                    MD5

                                    751f7aee11bd4be1ae38179213241635

                                    SHA1

                                    4c7a111f765a8fdc2748bf8b0e8a3507b510adb9

                                    SHA256

                                    dc6c6658583bd07dd709b04dc27a8c12c65cc7c428f14e260eaef949a79f4ffc

                                    SHA512

                                    fa694d09f3a0fae61bc0ea5a69068c762ea0d42dc53685627f45df84b0908685ff012717d3a1771cfd38363e1eedd9ff48eb4a41f8adcc1a365a03dd6920633f

                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                    Filesize

                                    5KB

                                    MD5

                                    78027098df458882e6959bafb524198e

                                    SHA1

                                    4110a9597f48bb1eddf6cd75e69bb5c7f43badbb

                                    SHA256

                                    142e104cb1d54211ec64258026cee64310f42e17d4a87f850768148ab23a4ac2

                                    SHA512

                                    a92fb87f28e0b64dcaed8c4a8d609f95f88fa64b07af40eaa92bd12436d499a37f2a461b152384d1c3bbb7bd2478503a0a000892da0ea34bab516d41fa3917c8

                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Preferences
                                    Filesize

                                    6KB

                                    MD5

                                    f87d0593e30747e5f2aefd14cf16d2d8

                                    SHA1

                                    c6e946a97acfc14886902f508da6421aeec1be6d

                                    SHA256

                                    db40bf218b39b60c9d420bcfbdb12f2f364a1d79ba2806edf873d071f3da70ca

                                    SHA512

                                    8442acb3585c5e4600e83f17af9bab0f450d6700c19e99ccf63306867c41b7f6f4db569bf43ef13030500def632ac9daea8417e5f75761e27fce3f1dc5edcb56

                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Local State
                                    Filesize

                                    136KB

                                    MD5

                                    93bcda014726b9fe4200103b72135aa1

                                    SHA1

                                    5ae4b9e195ebe30ff9aae28bcb79fdb84054b9b3

                                    SHA256

                                    8911027f6965fa77b342077fd15b3e60edad114330e6089c3b0f3f052457e310

                                    SHA512

                                    314cdd1d43ec3cf39753bedf0dd92375eb2f883433170ee4fd60125abcfc7135d25aa7a9c37ac756efab1bd8d71fa39e8bbeb0931d5cc3a6084e3015cbe76b38

                                  • C:\Users\Admin\AppData\Local\Google\Chrome\User Data\persisted_first_party_sets.json
                                    Filesize

                                    2B

                                    MD5

                                    99914b932bd37a50b983c5e7c90ae93b

                                    SHA1

                                    bf21a9e8fbc5a3846fb05b4fa0859e0917b2202f

                                    SHA256

                                    44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a

                                    SHA512

                                    27c74670adb75075fad058d5ceaf7b20c4e7786c83bae8a32f626f9782af34c9a33c2046ef60fd2a7878d378e29fec851806bbd9a67878f3a9f1cda4830763fd

                                  • C:\Users\Admin\Downloads\Unconfirmed 565190.crdownload
                                    Filesize

                                    6.8MB

                                    MD5

                                    85c9c29093b3097df94a680a8345e631

                                    SHA1

                                    9d45177aa70eb3c18c4a1896335533e86618d7d6

                                    SHA256

                                    bc0fd649456fb61a9b11c1194ce3398254344e1e26f586b1f910cdd1ebd98d51

                                    SHA512

                                    5293de3a7d4f5a373b8dc4f9ce64ce259f21e5d72b7e8020a8345f1956091ec3d2a0767ab3477764a7924e0f9ad1261bf8f113015535acfe4468d666a7febd97

                                  • \??\pipe\crashpad_1004_JUGCFQFYNVQYAWWP
                                    MD5

                                    d41d8cd98f00b204e9800998ecf8427e

                                    SHA1

                                    da39a3ee5e6b4b0d3255bfef95601890afd80709

                                    SHA256

                                    e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                                    SHA512

                                    cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e