Malicious PDF — malware analysis report

Static analysis result for SHA-256 d92e1f7cfaaa6548…

MALICIOUS

PDF

34.7 KB Created: 2021-06-26 20:44:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a686c47a7d0f1599647cef3ccf4f2d73 SHA-1: 2ad1d59bba33f238926e0ae2bb8ea0a565a0535e SHA-256: d92e1f7cfaaa65484832386b608b42297b743c33c0d5072df19e261191938b50
160 Risk Score

Malware Insights

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

The PDF document contains multiple links, including one to a known malicious redirector infrastructure. The document body and heuristics indicate a lure for game hacks and generators, specifically targeting Roblox and Coin Master. The primary malicious link identified is http://netcdn.co/app/431946152/roblox-hack-game-launcher-game-hack, which likely leads to a further stage of infection or phishing. No scripts were extracted from this sample.

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/roblox-hack-game-launcher-game-hack In PDF document text
    • http://perpustakaan.ipts.ac.id/repository/how-to-hack-bc-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/roblox-games-to-hack-on-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/without-pokemon-go-free-download_GM1094591345.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/how-to-get-free-robux-buy-obby-link-in-description_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/coin-master-time-hack-2021_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/how-to-hack-into-any-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/free-rust-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/roblox-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/free-roblox-redeem-codes-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/roblox-health-hack-code_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/best-free-robux-sites_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/roblox-speed-hack-pastebin_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/free-robux-now-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/coin-master-free-spin-bonus_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/roblox-cheat-engine-ccv_GM431946152.pdfIn PDF document text
    • http://perpustakaan.ipts.ac.id/repository/how-to-hack-a-roblox-account-on-pc_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
font_00_sfnt_off00003023.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3023 22452 bytes
SHA-256: 5b996ddbacc361eb606c344ad9383efe8d3cbdf92ae968625261ffde5a65d826
font_01_sfnt_off00006214.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6214 19220 bytes
SHA-256: f73f4e2c0caf1806e11299697d2d1e00fbe3354329f53958eb227160895401d8