Resubmissions

10/10/2024, 19:45

241010-ygqgvatbmg10

10/10/2024, 19:41

241010-yeebsstake6

10/10/2024, 19:38

241010-ycmkdsshkf6

Analysis

  • max time kernel
    121s
  • max time network
    143s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    10/10/2024, 19:41

General

  • Target
    sample.html
  • Size 21KB
  • Sample241010-yeebsstake
  • SHA256 3e3a0c2cbb2fe6b325f14d2c0a353647dcda20c3bc46d0e8da959ed47b702261
  • MD5 SHA1 SHA512 SSDEEP
Score
6/10

Malware Config

Signatures

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
  • Checks processor information in registry 2 TTPs 6 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 3 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\Mozilla Firefox\firefox.exe
    "C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url "C:\Users\Admin\AppData\Local\Temp\sample.html"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2536
    • C:\Program Files\Mozilla Firefox\firefox.exe
      "C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url C:\Users\Admin\AppData\Local\Temp\sample.html
      2⤵
      • Checks processor information in registry
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:2412
      • C:\Program Files\Mozilla Firefox\firefox.exe
        "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2412.0.230965748\466633469" -parentBuildID 20221007134813 -prefsHandle 1236 -prefMapHandle 1216 -prefsLen 20847 -prefMapSize 233444 -appDir "C:\Program Files\Mozilla Firefox\browser" - {67470465-5e35-4530-aeb7-afe40b5b3e16} 2412 "\\.\pipe\gecko-crash-server-pipe.2412" 1336 129d2c58 gpu
        3⤵
          PID:2848
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2412.1.885950401\610957373" -parentBuildID 20221007134813 -prefsHandle 1504 -prefMapHandle 1500 -prefsLen 21708 -prefMapSize 233444 -appDir "C:\Program Files\Mozilla Firefox\browser" - {013344e0-6cbb-4a3f-b10b-01dcfc6fc62e} 2412 "\\.\pipe\gecko-crash-server-pipe.2412" 1516 12903e58 socket
          3⤵
            PID:2760
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2412.2.1218215905\39513291" -childID 1 -isForBrowser -prefsHandle 2136 -prefMapHandle 2132 -prefsLen 21811 -prefMapSize 233444 -jsInitHandle 856 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {e6d81e58-90db-493a-a269-52b643dc8393} 2412 "\\.\pipe\gecko-crash-server-pipe.2412" 2148 1a89ea58 tab
            3⤵
              PID:3064
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2412.3.2055125735\679138797" -childID 2 -isForBrowser -prefsHandle 2520 -prefMapHandle 2516 -prefsLen 26216 -prefMapSize 233444 -jsInitHandle 856 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {7d15aaf7-365b-4b86-bd82-fc95db8ec548} 2412 "\\.\pipe\gecko-crash-server-pipe.2412" 2532 e69d58 tab
              3⤵
                PID:1936
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2412.4.308721293\1165100627" -childID 3 -isForBrowser -prefsHandle 3768 -prefMapHandle 3764 -prefsLen 26450 -prefMapSize 233444 -jsInitHandle 856 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {860d9ae8-5b16-4090-8f2e-11dc5504fa34} 2412 "\\.\pipe\gecko-crash-server-pipe.2412" 3780 1f82f558 tab
                3⤵
                  PID:1564
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2412.5.1662080077\181959552" -childID 4 -isForBrowser -prefsHandle 3888 -prefMapHandle 3892 -prefsLen 26450 -prefMapSize 233444 -jsInitHandle 856 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {bc70fdbb-d2a8-446e-944c-e75340c967e5} 2412 "\\.\pipe\gecko-crash-server-pipe.2412" 3876 1f9f0858 tab
                  3⤵
                    PID:2476
                  • C:\Program Files\Mozilla Firefox\firefox.exe
                    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="2412.6.151692524\822485959" -childID 5 -isForBrowser -prefsHandle 4072 -prefMapHandle 4076 -prefsLen 26450 -prefMapSize 233444 -jsInitHandle 856 -jsInitLen 246848 -a11yResourceId 64 -parentBuildID 20221007134813 -appDir "C:\Program Files\Mozilla Firefox\browser" - {f8fe1d9d-1b97-4f67-903f-91fcec189f7a} 2412 "\\.\pipe\gecko-crash-server-pipe.2412" 4056 1f9f2958 tab
                    3⤵
                      PID:888

                Network

                      MITRE ATT&CK Enterprise v15

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      activity-stream.discovery_stream.json.tmp

                      • Path C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\ytcgl2sn.default-release\activity-stream.discovery_stream.json.tmp
                      • Size 23KB
                      • SHA256 163e33083d6f6bf76a8f889b3c2ca10b046ab8d26f8168b6ae0e9acb8bc621c3
                      • MD5 SHA1 SHA512 SSDEEP

                      tmpaddon

                      • Path C:\Users\Admin\AppData\Local\Temp\tmpaddon
                      • Size 442KB
                      • SHA256 a9f4281f82b3579581c389e8583dc9f477c7fd0e20c9dfc91a2e611e21e3407e
                      • MD5 SHA1 SHA512 SSDEEP

                      tmpaddon-1

                      • Path C:\Users\Admin\AppData\Local\Temp\tmpaddon-1
                      • Size 8.0MB
                      • SHA256 345d44e3aa3e1967d186a43d732c8051235c43458169a5d7d371780a6475ee42
                      • MD5 SHA1 SHA512 SSDEEP

                      data.safe.bin

                      • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ytcgl2sn.default-release\datareporting\glean\db\data.safe.bin
                      • Size 2KB
                      • SHA256 c730a2728f073d581e982d5099b3bd517e7e7a75d8b13ac126f976a56237cf4f
                      • MD5 SHA1 SHA512

                      6866d5da-a337-483f-b8e7-054317472155

                      • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ytcgl2sn.default-release\datareporting\glean\pending_pings\6866d5da-a337-483f-b8e7-054317472155
                      • Size 11KB
                      • SHA256 5c3ed921dd51f862a919c5598c89ee68bd46f3299ac5d562e57d79e272c0d750
                      • MD5 SHA1 SHA512 SSDEEP

                      a70fd246-b24e-4dd4-9d76-0ec8d05e71d2

                      • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ytcgl2sn.default-release\datareporting\glean\pending_pings\a70fd246-b24e-4dd4-9d76-0ec8d05e71d2
                      • Size 745B
                      • SHA256 5e0713259ed58e7705a821ccbc81f126cee8cf316aa4e20499f2a3badd611840
                      • MD5 SHA1 SHA512

                      gmpopenh264.dll

                      • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ytcgl2sn.default-release\gmp-gmpopenh264\1.8.1.2\gmpopenh264.dll
                      • Size 997KB
                      • SHA256 1ed7877024be63a049da98733fd282c16bd620530a4fb580dacec3a78ace914e
                      • MD5 SHA1 SHA512 SSDEEP

                      gmpopenh264.info

                      • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ytcgl2sn.default-release\gmp-gmpopenh264\1.8.1.2\gmpopenh264.info
                      • Size 116B
                      • SHA256 f526e9f98841d987606efeaff7f3e017ba9fd516c4be83890c7f9a093ea4c47b
                      • MD5 SHA1 SHA512

                      LICENSE.txt

                      • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ytcgl2sn.default-release\gmp-widevinecdm\4.10.2557.0\LICENSE.txt
                      • Size 479B
                      • SHA256 2af127b4e00f7303de8271996c0c681063e4dc7abdc7b2a8c3fe5932b9352539
                      • MD5 SHA1 SHA512

                      manifest.json

                      • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ytcgl2sn.default-release\gmp-widevinecdm\4.10.2557.0\manifest.json
                      • Size 372B
                      • SHA256 e92d3394635edfb987a7528e0ccd24360e07a299078df2a6967ca3aae22fa2dd
                      • MD5 SHA1 SHA512

                      widevinecdm.dll

                      • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ytcgl2sn.default-release\gmp-widevinecdm\4.10.2557.0\widevinecdm.dll
                      • Size 11.8MB
                      • SHA256 8ee42d9258e20bbc5bfdfae61605429beb5421ffeaaa0d02b86d4978f4b4ac4e
                      • MD5 SHA1 SHA512 SSDEEP

                      widevinecdm.dll.lib

                      • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ytcgl2sn.default-release\gmp-widevinecdm\4.10.2557.0\widevinecdm.dll.lib
                      • Size 1KB
                      • SHA256 33899a3ebc22cb8ed8de7bd48c1c29486c0279b06d7ef98241c92aef4e3b9237
                      • MD5 SHA1 SHA512

                      widevinecdm.dll.sig

                      • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ytcgl2sn.default-release\gmp-widevinecdm\4.10.2557.0\widevinecdm.dll.sig
                      • Size 1KB
                      • SHA256 68a03f075db104f84afdd8fca45a7e4bff7b55dc1a2a24272b3abe16d8759c81
                      • MD5 SHA1 SHA512

                      prefs-1.js

                      • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ytcgl2sn.default-release\prefs-1.js
                      • Size 7KB
                      • SHA256 8b2e7a8fc9fefd0c67dbd3b131bea4bafbb2c9082a74002936f5c6771fd807dc
                      • MD5 SHA1 SHA512 SSDEEP

                      prefs-1.js

                      • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ytcgl2sn.default-release\prefs-1.js
                      • Size 6KB
                      • SHA256 fe8c50a046d78b3a0c6d9c108e3f0042134949b70cf45e006c81ba8366d85a42
                      • MD5 SHA1 SHA512 SSDEEP

                      prefs.js

                      • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ytcgl2sn.default-release\prefs.js
                      • Size 6KB
                      • SHA256 106484831f37ea8522a3da6ea65acf46d33a5fc55c2408356608c7ede567e150
                      • MD5 SHA1 SHA512 SSDEEP

                      recovery.jsonlz4

                      • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ytcgl2sn.default-release\sessionstore-backups\recovery.jsonlz4
                      • Size 1KB
                      • SHA256 c3eef28f4e8e910db517aff88fdb3b5f51aafab498f8528c5a90bce9feede9cd
                      • MD5 SHA1 SHA512

                      3870112724rsegmnoittet-es.sqlite

                      • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ytcgl2sn.default-release\storage\permanent\chrome\idb\3870112724rsegmnoittet-es.sqlite
                      • Size 184KB
                      • SHA256 4c838e0b1bce5349affb64f68b478a8d7c035551293866fa7a2d6c4fccf36a9e
                      • MD5 SHA1 SHA512 SSDEEP