Malicious PDF — malware analysis report

Static analysis result for SHA-256 9825e78a33a640d6…

MALICIOUS

PDF

45.4 KB Created: 2021-06-03 06:42:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-23
MD5: ba5f4a58658de782fb372a08f7c6b2f2 SHA-1: e113c4250ad6da8ce03ef966a7612d87521be9ec SHA-256: 9825e78a33a640d6e9786ded2ec9b5c0b8ceedb14c43f0e6aad7ac698cbdf227
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple links to known malicious redirectors, specifically advertising 'game hacks' and 'free generators'. The primary malicious URL identified is https://netcdn.online/app/431946152/boku-no-roblox-hack-game-hack. The document's structure and embedded links suggest it is designed to trick users into visiting these sites, likely leading to further malware downloads or phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9892

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/boku-no-roblox-hack-game-hack In PDF document text
    • https://www.cinemapalace.ro/trailer/files/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/coin-master-free-spin-link-new_GM406889139.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/get-free-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/how-to-get-free-roblox-items_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/is-roblox-free-on-ps4_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/coin-master-cheat-engine-hack_GM406889139.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/coin-master-hack-game_GM406889139.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/coin-master-hack-account_GM406889139.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/how-to-get-free-robux-games_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/buy-robux-free_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/free-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/minecraft-mobile-free_GM479516143.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/roblox-bloxburg-free-money_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/free-girl-hair-roblox_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/how-to-get-free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/is-minecraft-free_GM479516143.pdfIn PDF document text
    • https://www.cinemapalace.ro/trailer/files/how-do-you-hack-roblox_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
stream_004_off0000518c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x518C 26144 bytes
SHA-256: e5b1774e5d457176306d8987315fcab7f5a7ca675389a54005bb7606df13f4e2
font_01_sfnt_off00008ebf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EBF 18320 bytes
SHA-256: cd83af5ba5492d0d90d9a213d6c06333e9cd9f39d2b07ffbf91c7f3a8ed3d34e

Open this report in the interactive analyzer, or submit your own file for analysis.