Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d2b05e0301dc753…

MALICIOUS

PDF

36.7 KB Created: 2021-06-28 07:10:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: abdbad49000e216cccf707912697ac90 SHA-1: d3afc772f753139ad4a44d45154957751727fc30 SHA-256: 2d2b05e0301dc753130fc1a000e5bc667fc14791e2ce04bd4d87e8a8fc063a47
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a lure for a game hack generator, which redirects to malicious infrastructure. This infrastructure hosts multiple other PDFs, suggesting a chain of malicious documents. The primary redirector URL is http://netcdn.co/app/431946152/glitchtale-battle-of-souls-roblox-hack-jult-31-2021-game-hack, which is associated with known malicious redirector activity. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/glitchtale-battle-of-souls-roblox-hack-jult-31-2021-game-hack In PDF document text
    • https://lib-stie.yai.ac.id/repository/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-robux-group_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-robux-hack-game-in-roblox_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/pastebin-com-roblox-hack_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-get-robux-easy_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-fly-hack-cheat-engine-on-mac_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-robux-just-enter-username_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/i-robux-hack_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/tiktok-free-folowers-75_GM835599320.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-coin-master-gifts_GM406889139.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-hack-tool-2021-download_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/google-how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-spin-coin-master-2021-link_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_002_off00003200.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3200 23756 bytes
SHA-256: cc97beb4a7237ccd8cb7add37f5965abb6393428e036138dd029a57018338180
font_01_sfnt_off0000681a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x681A 19928 bytes
SHA-256: b62d9c1b491cc887ce61fdbc93fc756b98deb0070bb25da1d255f00569328165

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