Analysis

  • max time kernel
    35s
  • max time network
    36s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240611-en
  • resource tags

    arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    25-06-2024 16:17

General

  • Target

    https://cdn.discordapp.com/attachments/1254334525543288915/1254336947875217519/solarabootstraper.exe?ex=667bc2d0&is=667a7150&hm=9e37d9feda8ac823db279851a858c2d999a629b641924f99d34c335af2ab7d6e&

Malware Config

Extracted

Family

discordrat

Attributes
  • discord_token

    MTIzOTEzMTk4MTc4NzI5OTkxMg.G2PouQ.rmLVRC29c13dyUDlcJhFL4MtNpJCMM3OTOmuyI

  • server_id

    1254334525543288912

Signatures

  • Discord RAT

    A RAT written in C# using Discord as a C2.

  • Downloads MZ/PE file
  • Executes dropped EXE 4 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 5 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
  • Modifies registry class 1 IoCs
  • NTFS ADS 2 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 36 IoCs
  • Suspicious use of SendNotifyMessage 12 IoCs
  • Suspicious use of WriteProcessMemory 64 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:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --single-argument https://cdn.discordapp.com/attachments/1254334525543288915/1254336947875217519/solarabootstraper.exe?ex=667bc2d0&is=667a7150&hm=9e37d9feda8ac823db279851a858c2d999a629b641924f99d34c335af2ab7d6e&
    1⤵
    • Enumerates system info in registry
    • Modifies registry class
    • NTFS ADS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:1072
    • 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=90.0.4430.212 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=90.0.818.66 --initial-client-data=0x100,0x104,0x108,0xdc,0x10c,0x7ffc88d73cb8,0x7ffc88d73cc8,0x7ffc88d73cd8
      2⤵
        PID:1160
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=1944,1475745350021549697,7179849141680011808,131072 --gpu-preferences=SAAAAAAAAADgAAAwAAAAAAAAAAAAAAAAAABgAAAAAAAoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAB4AAAAAAAAAHgAAAAAAAAAKAAAAAQAAAAgAAAAAAAAACgAAAAAAAAAMAAAAAAAAAA4AAAAAAAAABAAAAAAAAAAAAAAAAUAAAAQAAAAAAAAAAAAAAAGAAAAEAAAAAAAAAABAAAABQAAABAAAAAAAAAAAQAAAAYAAAAIAAAAAAAAAAgAAAAAAAAA --mojo-platform-channel-handle=1952 /prefetch:2
        2⤵
          PID:3184
        • 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=1944,1475745350021549697,7179849141680011808,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2328 /prefetch:3
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:1428
        • 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=1944,1475745350021549697,7179849141680011808,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2628 /prefetch:8
          2⤵
            PID:2548
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1944,1475745350021549697,7179849141680011808,131072 --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=3240 /prefetch:1
            2⤵
              PID:2544
            • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
              "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1944,1475745350021549697,7179849141680011808,131072 --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=3256 /prefetch:1
              2⤵
                PID:4376
              • C:\Program Files (x86)\Microsoft\Edge\Application\90.0.818.66\identity_helper.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\90.0.818.66\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=1944,1475745350021549697,7179849141680011808,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5332 /prefetch:8
                2⤵
                • Suspicious behavior: EnumeratesProcesses
                PID:2224
              • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1944,1475745350021549697,7179849141680011808,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=9 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5108 /prefetch:1
                2⤵
                  PID:628
                • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=chrome.mojom.UtilReadIcon --field-trial-handle=1944,1475745350021549697,7179849141680011808,131072 --lang=en-US --service-sandbox-type=icon_reader --mojo-platform-channel-handle=5848 /prefetch:8
                  2⤵
                    PID:3504
                  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1944,1475745350021549697,7179849141680011808,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5852 /prefetch:1
                    2⤵
                      PID:3008
                    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1944,1475745350021549697,7179849141680011808,131072 --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=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5932 /prefetch:1
                      2⤵
                        PID:3652
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=chrome.mojom.UtilWin --field-trial-handle=1944,1475745350021549697,7179849141680011808,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5060 /prefetch:8
                        2⤵
                        • Suspicious behavior: EnumeratesProcesses
                        PID:1508
                      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1944,1475745350021549697,7179849141680011808,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=14 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5444 /prefetch:1
                        2⤵
                          PID:3388
                        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=1944,1475745350021549697,7179849141680011808,131072 --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=15 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=6180 /prefetch:1
                          2⤵
                            PID:3816
                          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
                            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=quarantine.mojom.Quarantine --field-trial-handle=1944,1475745350021549697,7179849141680011808,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5940 /prefetch:8
                            2⤵
                            • NTFS ADS
                            • Suspicious behavior: EnumeratesProcesses
                            PID:4008
                          • C:\Users\Admin\Downloads\solarabootstraper.exe
                            "C:\Users\Admin\Downloads\solarabootstraper.exe"
                            2⤵
                            • Executes dropped EXE
                            PID:1432
                            • C:\Users\Admin\AppData\Local\Temp\RarSFX0\test.exe
                              "C:\Users\Admin\AppData\Local\Temp\RarSFX0\test.exe"
                              3⤵
                              • Executes dropped EXE
                              • Suspicious use of AdjustPrivilegeToken
                              PID:1508
                        • C:\Windows\System32\CompPkgSrv.exe
                          C:\Windows\System32\CompPkgSrv.exe -Embedding
                          1⤵
                            PID:2152
                          • C:\Windows\System32\CompPkgSrv.exe
                            C:\Windows\System32\CompPkgSrv.exe -Embedding
                            1⤵
                              PID:4468
                            • C:\Windows\System32\rundll32.exe
                              C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                              1⤵
                                PID:2436
                              • C:\Users\Admin\Downloads\solarabootstraper.exe
                                "C:\Users\Admin\Downloads\solarabootstraper.exe"
                                1⤵
                                • Executes dropped EXE
                                PID:4544
                                • C:\Users\Admin\AppData\Local\Temp\RarSFX1\test.exe
                                  "C:\Users\Admin\AppData\Local\Temp\RarSFX1\test.exe"
                                  2⤵
                                  • Executes dropped EXE
                                  • Suspicious use of AdjustPrivilegeToken
                                  PID:760
                                  • C:\Windows\SYSTEM32\SCHTASKS.exe
                                    "SCHTASKS.exe" /create /tn "$77test.exe" /tr "'C:\Users\Admin\AppData\Local\Temp\RarSFX1\test.exe'" /sc onlogon /rl HIGHEST
                                    3⤵
                                    • Scheduled Task/Job: Scheduled Task
                                    PID:3544

                              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

                                2dfecbb576ee9795c5284da8a2a3c7f5

                                SHA1

                                f1f0a6a97850aca2b4ab267a017564af02f24948

                                SHA256

                                dca6901942fa748fc01339192c0738a06847d8497c9c61298f1e5df1f8352fb0

                                SHA512

                                d664cc261113427810dd0b2d32763ddd08611a528fe6b285782d6b8ac03304b72a90fe7f3f7142e825ab8d948d5c9cf52f420546f3796b2ac23f3d00f3c17389

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

                                Filesize

                                152B

                                MD5

                                6486ee9e961a437dadb68ff1544d18a8

                                SHA1

                                05f4daccca0bc1ce73fe71ad2325ba5dadd3df25

                                SHA256

                                9a98b4686c9e90672a548c873943b3027fb111f7992263111d912318429f5834

                                SHA512

                                ee3659f68a46f37f340f98b85a7aa289e700c5ced2a4f0104673bb5f18cc82d1e9b838ec0278407213c6ed2073998e7aad78a7a39390b7e460c8e26dfa91d0e9

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

                                Filesize

                                186B

                                MD5

                                094ab275342c45551894b7940ae9ad0d

                                SHA1

                                2e7ce26fe2eb9be641ae929d0c9cc0dfa26c018e

                                SHA256

                                ef1739b833a1048ee1bd55dcbac5b1397396faca1ad771f4d6c2fe58899495a3

                                SHA512

                                19d0c688dc1121569247111e45de732b2ab86c71aecdde34b157cfd1b25c53473ed3ade49a97f8cb2ddc4711be78fa26c9330887094e031e9a71bb5c29080b0d

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

                                Filesize

                                5KB

                                MD5

                                6bb479f02e9f99e9f6f64e4f766c971e

                                SHA1

                                939b1443319bbcc7d5d06651fe2fdf4de98278be

                                SHA256

                                6086b52e88cca4fa38a588bc5d64177b28b3ffbc7dd3181ed1141819a78ce894

                                SHA512

                                42816870eab81a819348b1348d440322ffbc1ef5dcf446d5209fb934709cb934ea3f7f4eb58f39dea0aeb04d7610d9c2ec157122468a9888d1c6c1816e81025e

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

                                Filesize

                                5KB

                                MD5

                                7fb5c272f46e540446a11eb9f344e44f

                                SHA1

                                0805ffbb55674fb641a4652889c112a57c7b091b

                                SHA256

                                b957ab036d18fcd2f4a3c7fb4b9378abaa4c68499bbb97a4737388085edddfe8

                                SHA512

                                7b7125431f2e120a0d756786c8acc75ba494750440e0f1761d23865fb7425c9c2003c843b672939a0ea03593dad0155a1c1887acfad10189c1fc2b9abe9b0fc4

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

                                Filesize

                                5KB

                                MD5

                                02b8522ea80c0cb8d7021779266297ca

                                SHA1

                                6b85fed2154369f4e81d7bcd5ea0552fef36aebe

                                SHA256

                                2f910e4bce972873bbefd0f125d8c0129efd08a4a6a13fa571425e0810fb6245

                                SHA512

                                b396975948e30402857eb724bb9782212d35d873a1a66400843f5a1ddb4bbf0e56632435cecb0cb48c5510a50fc9d5871564219045251476732016d09fc82cd8

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

                                Filesize

                                16B

                                MD5

                                46295cac801e5d4857d09837238a6394

                                SHA1

                                44e0fa1b517dbf802b18faf0785eeea6ac51594b

                                SHA256

                                0f1bad70c7bd1e0a69562853ec529355462fcd0423263a3d39d6d0d70b780443

                                SHA512

                                8969402593f927350e2ceb4b5bc2a277f3754697c1961e3d6237da322257fbab42909e1a742e22223447f3a4805f8d8ef525432a7c3515a549e984d3eff72b23

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

                                Filesize

                                16B

                                MD5

                                206702161f94c5cd39fadd03f4014d98

                                SHA1

                                bd8bfc144fb5326d21bd1531523d9fb50e1b600a

                                SHA256

                                1005a525006f148c86efcbfb36c6eac091b311532448010f70f7de9a68007167

                                SHA512

                                0af09f26941b11991c750d1a2b525c39a8970900e98cba96fd1b55dbf93fee79e18b8aab258f48b4f7bda40d059629bc7770d84371235cdb1352a4f17f80e145

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

                                Filesize

                                11KB

                                MD5

                                082bdadb00f75e4adbfe76cd7ea0127f

                                SHA1

                                324ccdfcce3b3ffb22f736c83c795ff5810ea2f7

                                SHA256

                                96e7fb09cad8f00de03057a203f18a27812673dd2d0f8164e70c42f2e924fb06

                                SHA512

                                313d8f1102314863c0120e7306739e70e03957237a6ed8b77e65af84557f2d767002b78938aee8f5188e3c5de7a3ce1d7e967164e58d2cc3662dd6cd7e944117

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

                                Filesize

                                11KB

                                MD5

                                fb3abfa1fa889d358de7bed6edb7b4ca

                                SHA1

                                dc2181014d3a460210c231ea2484f5994027e779

                                SHA256

                                50a5e8baf732b46a6d716753ecbbc2ff509e648722a7174767f59ca576563d57

                                SHA512

                                9c72a6d9a71bf7d2ab2bcbbc9391b034cb2e74e6be2d4608b3115b0e6bab66e8010c4bfc5b1d804a13b79e39c83383517ea3fda644c3db36f1c787835cdc4d38

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

                                Filesize

                                11KB

                                MD5

                                15360d3ef63d3571b79e9d2cb7189f9c

                                SHA1

                                d2870d7c791c5abb0fd2e5dd9384a8f8c7dc44f0

                                SHA256

                                b3b64c2868980d7eb3e9c7257895fe0700379413ac73b5deeeb42ac6835a1069

                                SHA512

                                45a830b0314c7f3d135c53e7594c33f27a4af9fc54777c1283663dc935265447446953ac15c0541d3932fc5fb2f8596ed93ec364cf33c175167acf04d0787636

                              • C:\Users\Admin\AppData\Local\Temp\RarSFX0\test.exe

                                Filesize

                                78KB

                                MD5

                                cd0398fb5a04ce43be2b1183e7dfad06

                                SHA1

                                e1e9ac1f1f2533f3bfec802cae2cbeeeac65c181

                                SHA256

                                c4fb94399b109d19585a03233be7663000aae8c7c7f8661ce744c59bfa8ced08

                                SHA512

                                50bfd2614078082fd83e43e61a36b086eae0fec2399fae5655c6442a474ffb7c25cabe43b4c484c85acc4fac72c2f2613dc00e85045242dfcdd91093519699bc

                              • C:\Users\Admin\Downloads\Unconfirmed 444575.crdownload

                                Filesize

                                497KB

                                MD5

                                48258af1b1134dffa388c6f2590325c3

                                SHA1

                                e2fa6a4351d7b358e6b20e9194b63b54751458d4

                                SHA256

                                d0452f63e207ead4ba0828fba9cd46d54c08906ac3f35f1c0b27dda2d60fbc83

                                SHA512

                                1eeceefb8843f72b55e1b517039ab53cd72af3bb294fe9b06ce0a6207749506bf299cd913a4a1088ffa002069821d346ec3fc045fa701014110beec03d7d208c

                              • C:\Users\Admin\Downloads\solarabootstraper.exe:Zone.Identifier

                                Filesize

                                229B

                                MD5

                                d1a3dba820e810bf857af29be2174171

                                SHA1

                                1c14f3fb4d2f99de64385f405a768cba12bd6993

                                SHA256

                                24b83d81b6ed1f53babbae3ac4af8e18dd376a5f1a2bdb1d4859d4cd2e2e5cc8

                                SHA512

                                e39d2d0ab8d6e3caed651b4ec7ff1d9754b452ad6b325e58fe3f8a73a8c9cc686385190153f5ca647880fcfeca57eeac4fae35c8b83a5fb5f71a941c2cfc162a

                              • memory/1508-102-0x0000027ACCF90000-0x0000027ACCFA8000-memory.dmp

                                Filesize

                                96KB

                              • memory/1508-103-0x0000027AE7630000-0x0000027AE77F2000-memory.dmp

                                Filesize

                                1.8MB

                              • memory/1508-113-0x0000027AE7E80000-0x0000027AE83A8000-memory.dmp

                                Filesize

                                5.2MB