Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1f4924e6b881966…

MALICIOUS

PDF

46.9 KB Created: 2021-06-04 05:28:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 809bd30dc969dedd31f242ba2c0ee8e1 SHA-1: b5ff6f54b765c99afb9938ba623189fc7630007b SHA-256: e1f4924e6b881966fee78e2176db79eff69e188df7401e025310ec78da745036
82 Risk Score

Malware Insights

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

This PDF document uses a lure related to game hacks and free generators to trick users into clicking a malicious link. The primary URL, https://netcdn.online/app/479516143/play-full-version-of-minecraft-for-free-no-download-game-hack, is identified as a high-risk redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to exploit vulnerabilities or redirect the user to a malicious site for further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

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/479516143/play-full-version-of-minecraft-for-free-no-download-game-hack PDF link annotation
    • http://perpus.stihpada.ac.id/repository/free-private-server-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.stihpada.ac.id/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://perpus.stihpada.ac.id/repository/coin-master-free-spins-no-verification_GM406889139.pdfIn PDF document text
    • http://perpus.stihpada.ac.id/repository/roblox-skins-boy-free_GM431946152.pdfIn PDF document text
    • http://perpus.stihpada.ac.id/repository/minecraft-free-download-apk-softonic_GM479516143.pdfIn PDF document text
    • http://perpus.stihpada.ac.id/repository/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • http://perpus.stihpada.ac.id/repository/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.stihpada.ac.id/repository/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.stihpada.ac.id/repository/coin-master-free-spins-today-39_GM406889139.pdfIn PDF document text
    • http://perpus.stihpada.ac.id/repository/hack-coin-master-net_GM406889139.pdfIn PDF document text
    • http://perpus.stihpada.ac.id/repository/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.stihpada.ac.id/repository/how-to-get-free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://perpus.stihpada.ac.id/repository/free-robux-obby_GM431946152.pdfIn PDF document text
    • http://perpus.stihpada.ac.id/repository/coin-master-apk-mod_GM406889139.pdfIn PDF document text
    • http://perpus.stihpada.ac.id/repository/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.stihpada.ac.id/repository/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://perpus.stihpada.ac.id/repository/how-to-get-minecraft-coins-for-free_GM479516143.pdfIn PDF document text
    • http://perpus.stihpada.ac.id/repository/unlimited-robux_GM431946152.pdfIn PDF document text
    • http://perpus.stihpada.ac.id/repository/pokemon-go-free-incense-2021_GM1094591345.pdfIn PDF document text
    • http://perpus.stihpada.ac.id/repository/archery-master-3d-apk-and-mod-free-download-unlimited-coins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005172.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5172 24148 bytes
SHA-256: 6889142efe5dc94093e1d41707edd87955f1b339ef72498c8997dc7975544d77
font_01_sfnt_off00008856.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8856 3128 bytes
SHA-256: e72d8d1e26c87a5aea965968b922732c7406bc33888678dc3a8c04cb95b3c770
font_02_sfnt_off00009296.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9296 18900 bytes
SHA-256: 72a4985a0f1854ed26b55ec1f9c271b843743081401250fa5f99a0b23226d3ed

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