Malicious PDF — malware analysis report

Static analysis result for SHA-256 4360731c988821be…

MALICIOUS

PDF

45.2 KB Created: 2021-06-03 18:14:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 6cb1ca80f7e160c2726b9c91b931579d SHA-1: bbf42382c15245bc5ca3844b6e5a8321a1613051 SHA-256: 4360731c988821be50f9b1c692d648e168d0fafcf4bb7e1d87d2825b36f5a559
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple links and a lure for 'free exploits' and 'game hacks', specifically mentioning Roblox. The primary link, https://netcdn.online/app/431946152/roblox-free-exploits-game-hack, is highly suspicious and likely leads to a malicious download or phishing page. The document's structure and content strongly suggest a social engineering attempt to trick users into clicking malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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 https://netcdn.online/app/431946152/roblox-free-exploits-game-hack PDF link annotation
    • https://www.talakeel.com/uploaded_files/userfiles/files/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • https://www.talakeel.com/uploaded_files/userfiles/files/roblox-mac-os-x-free-download_GM431946152.pdfIn PDF document text
    • https://www.talakeel.com/uploaded_files/userfiles/files/coin-master-bonus_GM406889139.pdfIn PDF document text
    • https://www.talakeel.com/uploaded_files/userfiles/files/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
    • https://www.talakeel.com/uploaded_files/userfiles/files/coin-master-free-spins-and-cards_GM406889139.pdfIn PDF document text
    • https://www.talakeel.com/uploaded_files/userfiles/files/free-robux-just-enter-username_GM431946152.pdfIn PDF document text
    • https://www.talakeel.com/uploaded_files/userfiles/files/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.talakeel.com/uploaded_files/userfiles/files/free-robux-now_GM431946152.pdfIn PDF document text
    • https://www.talakeel.com/uploaded_files/userfiles/files/free-coin-master-spin-app_GM406889139.pdfIn PDF document text
    • https://www.talakeel.com/uploaded_files/userfiles/files/robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • https://www.talakeel.com/uploaded_files/userfiles/files/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.talakeel.com/uploaded_files/userfiles/files/coin-master-hack-spins-apk_GM406889139.pdfIn PDF document text
    • https://www.talakeel.com/uploaded_files/userfiles/files/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.talakeel.com/uploaded_files/userfiles/files/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.talakeel.com/uploaded_files/userfiles/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://www.talakeel.com/uploaded_files/userfiles/files/free-robux-obby-2021_GM431946152.pdfIn PDF document text
    • https://www.talakeel.com/uploaded_files/userfiles/files/robux-earning-websites_GM431946152.pdfIn PDF document text
    • https://www.talakeel.com/uploaded_files/userfiles/files/coin-master-free-spins-cheat_GM406889139.pdfIn PDF document text
    • https://www.talakeel.com/uploaded_files/userfiles/files/minecraft-ps4-free_GM479516143.pdfIn PDF document text
    • https://www.talakeel.com/uploaded_files/userfiles/files/daily-free-spin-and-coin_GM406889139.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
stream_004_off00005263.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5263 25920 bytes
SHA-256: c1364d9734de069a9d3b15bfa0ea0de29fa28269920c92fd6c188074d9b60008
font_01_sfnt_off00008e19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E19 18348 bytes
SHA-256: 6c925dd72bfdbeb9e5985c11867b62b97a75752c64c0caf4da45c40d6edb98e2