Malicious PDF — malware analysis report

Static analysis result for SHA-256 f669d0d46d3b32f7…

MALICIOUS

PDF

33.0 KB Created: 2021-06-17 22:25:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 0fe4eb2d6e2b578fe20d7077f7f52d2f SHA-1: 9eb77c98e284829663d4de9637cb98ded3f8c95b SHA-256: f669d0d46d3b32f7029cdc99e8f0cbaed7f62fc70b5ff33137ca05cd05e7f4c0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs that lead to game hack lures, specifically targeting popular games like Roblox and Minecraft. The primary URL, http://netcdn.co/app/431946152/how-to-hack-in-roblox-jailbreak-2021-mobile-game-hack, is flagged as a high-risk redirector. While no scripts were extracted, the document's structure and embedded links strongly suggest a phishing or malware distribution attempt, likely initiated via a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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.co/app/431946152/how-to-hack-in-roblox-jailbreak-2021-mobile-game-hack PDF link annotation
    • http://perpus.ftunismabekasi.ac.id/repository/how-to-get-free-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/free-robux-pins_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/adopt-me-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/roblox-apk-hack_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/get-me-robux-for-free_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/can-you-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/minecraft-wurst_GM479516143.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/free-robux-app_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/wahoogaming-co-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/minecraft-bedrock-server-hosting-free_GM479516143.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/is-minecraft-free-on-pc_GM479516143.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/bad-minecraft-free_GM479516143.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/roblox-hack-pets-simulator_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/coin-master-free-spins-cheat-codes_GM406889139.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/roblox-com-free-for-mobile-24-com_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/links-to-get-free-spins-on-coin-master_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
font_00_sfnt_off00002b4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B4A 21584 bytes
SHA-256: 00c5a81280dd9147172a95c260e736f8421d4b65cc188976777e3b2ab965306a
font_01_sfnt_off00005aab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AAB 19520 bytes
SHA-256: 2bbf0008bda1be7532b98f112bd631e44478dd6ded5c09d6be5d0e2e50a455ae

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