Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebf8f74d97e9a213…

MALICIOUS

PDF

49.9 KB Created: 2021-05-13 02:05:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6d4c79e3cccf3a0e9fd2e09e25c3942f SHA-1: 0c33bbf8079731385c3967705dfa4bdd5f52278e SHA-256: ebf8f74d97e9a21323445ce64c93fd5621132cf2b72093388912503a290b3f55
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and lures users with promises of game hacks and generators. The primary malicious URL identified is https://netcdn.xyz/app/431946152/roblox-rape-hack-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate a malicious redirector workflow, likely intended to deliver a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9349

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.xyz/app/431946152/roblox-rape-hack-game-hack In PDF document text
    • http://digilib.stimlog.ac.id/repository/village-3-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/tower-of-hell-roblox-hack_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/how-to-get-free-premium-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-microsoft-rewards_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/coin-master-spin-hack-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-make-a-minecraft-bedrock-server-for-free_GM479516143.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/coin-master-free-spins-hack-without-human-verification_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/coin-master-coin-hack_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/claimrbx-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/robuxglobalcom_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/robux-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/coin-master-free-spins-2-5-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000045c1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x45C1 27808 bytes
SHA-256: 0a3def7cbc0d5d1c2387dd970dab89b757e33531d6b7d29412ed2cc3642eabe8
font_01_sfnt_off0000840d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x840D 8704 bytes
SHA-256: ddfd86c88a6b8304bc31eeb9f28c8110fac325cdacc87503bacf4ac741777490
font_02_sfnt_off0000a078.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA078 18356 bytes
SHA-256: 8a1fe0c7231104fca4fa627868bae52978e90e92fc8d209bfe3611444447d27b

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