Malicious PDF — malware analysis report

Static analysis result for SHA-256 18390a36ecd30d60…

MALICIOUS

PDF

34.4 KB Created: 2021-07-04 00:43:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 09b760d9ccd7a291ee7cf5ac26d1cc07 SHA-1: 76fb2ac3639ab88c6aa8d98f512cb1ec5955b2a6 SHA-256: 18390a36ecd30d609ebc63887f37ae4f8be764c450103384cee6492b8258eb65
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/431946152/blox-world-free-robux-game-hack PDF link annotation
    • https://creationegyptco.com/userfiles/files/will-minecraft-dungeons-be-free_GM479516143.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/como-hackear-el-juego-coin-master_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/roblox-cruise-ship-tyccon-albatros-free-script_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/ios-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/roblox-hack-and-cheats-for-exploit-free-download_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/robux-page_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-robux-script_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/how-to-use-free-models-in-roblox-studio_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/javascript-free-robux_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/roblox-hackprogamers-com_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-robux-not-fake_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-real-roblox-robux-genereator_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/bux-gg-robux-free_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/freerobux-co_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/how-to-get-robux_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/get-free-robux-easiest-way_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/coin-master-hack-tool-v1-9_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/robux-cheat_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003002.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3002 22060 bytes
SHA-256: d30e5330e7073ef39ccfc4d89ce7d30d278d67ed0de7f9b22f2763306a58dc67
font_01_sfnt_off0000611e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x611E 19160 bytes
SHA-256: 42e554ef2c91bbb5af350d4b1f45d0a0f829397bc38bc7c2009f5bdaf8074c39

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