Analysis

  • max time kernel
    121s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240426-en
  • resource tags

    arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    04/06/2024, 15:47

General

  • Target
    https://github.com/ytisf/theZoo/blob/master/malware/Binaries/Ransomware.WannaCry_Plus/Ransomware.WannaCry_Plus.zip
  • Sample240604-s8hcnace75
Score
6/10

Malware Config

Signatures

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 5 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
  • NTFS ADS 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of SetWindowsHookEx 4 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 "https://github.com/ytisf/theZoo/blob/master/malware/Binaries/Ransomware.WannaCry_Plus/Ransomware.WannaCry_Plus.zip"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4124
    • C:\Program Files\Mozilla Firefox\firefox.exe
      "C:\Program Files\Mozilla Firefox\firefox.exe" -osint -url https://github.com/ytisf/theZoo/blob/master/malware/Binaries/Ransomware.WannaCry_Plus/Ransomware.WannaCry_Plus.zip
      2⤵
      • Checks processor information in registry
      • Modifies registry class
      • NTFS ADS
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3068
      • C:\Program Files\Mozilla Firefox\firefox.exe
        "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3068.0.1964520427\1467173505" -parentBuildID 20230214051806 -prefsHandle 1796 -prefMapHandle 1776 -prefsLen 22074 -prefMapSize 235121 -appDir "C:\Program Files\Mozilla Firefox\browser" - {426bb247-4953-486e-956d-e5c4feb8f9bc} 3068 "\\.\pipe\gecko-crash-server-pipe.3068" 1892 21d4a0bce58 gpu
        3⤵
          PID:3908
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3068.1.2015581210\1557831095" -parentBuildID 20230214051806 -prefsHandle 2428 -prefMapHandle 2424 -prefsLen 22925 -prefMapSize 235121 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {2a3ba641-f048-4882-9237-6e66412dd1f5} 3068 "\\.\pipe\gecko-crash-server-pipe.3068" 2440 21d3d388758 socket
          3⤵
            PID:4880
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3068.2.402215649\1631920820" -childID 1 -isForBrowser -prefsHandle 3076 -prefMapHandle 2888 -prefsLen 22963 -prefMapSize 235121 -jsInitHandle 1184 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {3abb426e-7b8a-4822-93fe-6191680dd066} 3068 "\\.\pipe\gecko-crash-server-pipe.3068" 3088 21d49095258 tab
            3⤵
              PID:3824
            • C:\Program Files\Mozilla Firefox\firefox.exe
              "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3068.3.301035993\654899782" -childID 2 -isForBrowser -prefsHandle 3216 -prefMapHandle 3036 -prefsLen 27614 -prefMapSize 235121 -jsInitHandle 1184 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {9b86a94d-0555-440e-bf08-7847a74a4927} 3068 "\\.\pipe\gecko-crash-server-pipe.3068" 3104 21d4f5c2d58 tab
              3⤵
                PID:2196
              • C:\Program Files\Mozilla Firefox\firefox.exe
                "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3068.4.1791632078\48664096" -childID 3 -isForBrowser -prefsHandle 5288 -prefMapHandle 5284 -prefsLen 27614 -prefMapSize 235121 -jsInitHandle 1184 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {3a0ccc7a-f77f-42da-8e2d-06af0dc1bd20} 3068 "\\.\pipe\gecko-crash-server-pipe.3068" 5292 21d52487e58 tab
                3⤵
                  PID:2800
                • C:\Program Files\Mozilla Firefox\firefox.exe
                  "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3068.5.865839581\1569149299" -childID 4 -isForBrowser -prefsHandle 5452 -prefMapHandle 5304 -prefsLen 27614 -prefMapSize 235121 -jsInitHandle 1184 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {5fa80069-d75e-4f08-88a4-a24d1ff4958f} 3068 "\\.\pipe\gecko-crash-server-pipe.3068" 5440 21d52489958 tab
                  3⤵
                    PID:3316
                  • C:\Program Files\Mozilla Firefox\firefox.exe
                    "C:\Program Files\Mozilla Firefox\firefox.exe" -contentproc --channel="3068.6.327442607\601683756" -childID 5 -isForBrowser -prefsHandle 5636 -prefMapHandle 5640 -prefsLen 27614 -prefMapSize 235121 -jsInitHandle 1184 -jsInitLen 246560 -a11yResourceId 64 -parentBuildID 20230214051806 -win32kLockedDown -appDir "C:\Program Files\Mozilla Firefox\browser" - {f48e190e-c2ae-4650-b40c-fcb1525a7076} 3068 "\\.\pipe\gecko-crash-server-pipe.3068" 5628 21d5248ae58 tab
                    3⤵
                      PID:968
                • C:\Windows\System32\rundll32.exe
                  C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                  1⤵
                    PID:3076

                  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\ydz6lw8g.default-release\activity-stream.discovery_stream.json.tmp
                        • Size 27KB
                        • SHA256 cbc9e57250e319c6fa6e36db1c04045483b8cbaed9929ecab55e925c8b507650
                        • MD5 SHA1 SHA512 SSDEEP

                        F4EFE37A30D0F14C6AC03FF7949A51CBC2EBC649

                        • Path C:\Users\Admin\AppData\Local\Mozilla\Firefox\Profiles\ydz6lw8g.default-release\cache2\entries\F4EFE37A30D0F14C6AC03FF7949A51CBC2EBC649
                        • Size 13KB
                        • SHA256 d32888720e7055a992050dbbf79f89947fbb41d8c0be1ba19bf4e91fee9ef162
                        • 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

                        gmpopenh264.dll

                        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ydz6lw8g.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\ydz6lw8g.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\ydz6lw8g.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\ydz6lw8g.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\ydz6lw8g.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\ydz6lw8g.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\ydz6lw8g.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\ydz6lw8g.default-release\prefs-1.js
                        • Size 6KB
                        • SHA256 464f452d146948e2aae5c854be12b4ba31ca69f06e4f39eeb156bf7477134a0a
                        • MD5 SHA1 SHA512 SSDEEP

                        prefs-1.js

                        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ydz6lw8g.default-release\prefs-1.js
                        • Size 8KB
                        • SHA256 c6e7f69b23b51f440966638fc4309a1eba3e59308810ccc73961a92c430d84ea
                        • MD5 SHA1 SHA512 SSDEEP

                        prefs-1.js

                        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ydz6lw8g.default-release\prefs-1.js
                        • Size 7KB
                        • SHA256 39869dcb6d64076584fac4e648e987e9370d804b74c42d5b4f91a12a7e29bf6b
                        • MD5 SHA1 SHA512 SSDEEP

                        prefs.js

                        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ydz6lw8g.default-release\prefs.js
                        • Size 6KB
                        • SHA256 1fae6ed7cdabe77eb80e4300bc810b308a1920682058bbb4938bfe1e638a2859
                        • MD5 SHA1 SHA512 SSDEEP

                        recovery.jsonlz4

                        • Path C:\Users\Admin\AppData\Roaming\Mozilla\Firefox\Profiles\ydz6lw8g.default-release\sessionstore-backups\recovery.jsonlz4
                        • Size 3KB
                        • SHA256 b1dd8866f45fe84e8e8f7434d77a703985ee2d74515aea5fa959eab9b477a7a3
                        • MD5 SHA1 SHA512

                        Ransomware.kUfwTgWf.WannaCry_Plus.zip.part

                        • Path C:\Users\Admin\Downloads\Ransomware.kUfwTgWf.WannaCry_Plus.zip.part
                        • Size 2.3MB
                        • SHA256 ab14c3f5741c06ad40632447b2fc10662d151afb32066a507aab4ec866ffd488
                        • MD5 SHA1 SHA512 SSDEEP