Malicious PDF — malware analysis report

Static analysis result for SHA-256 0692e6e2d4bcabbb…

MALICIOUS

PDF

45.7 KB Created: 2021-06-08 20:53:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6b40b0db75cd751c202fc5059b7d5730 SHA-1: ad8f935f39dc6750a892a20b3461cca490bbeb11 SHA-256: 0692e6e2d4bcabbb4a42718e7f95fbc4722b3e455d61012db2536a9967419b22
160 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a game hack redirector lure, pointing to a specific URL. This URL is embedded within the document's body, suggesting an attempt to trick users into visiting a malicious site. The ML classifier also strongly flagged this PDF as malicious. While no scripts were extracted, the presence of a malicious redirector link and the lure itself indicates a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.tw/app/431946152/roblox-frappe-hack-script-game-hack In PDF document text
    • http://elibrary.smknesbu.sch.id/repository/coin-master-free-spin-and-coins-fbid-links_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/coin-master-email-rewards_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/coin-master-game-hack-app_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/roblox-phantom-forces-hack-aimbot-redboy_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-robux-download_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/roblox-darkness-2-cheats_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/coin-master-free-spins-2021-link_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-robux-easy-and-fast_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/freespinandcoin-blogspot-com_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/coin-master-free-spins-hack-download_GM406889139.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/earn-robux-now_GM431946152.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/minecraft-mods-download-free_GM479516143.pdfIn PDF document text
    • http://elibrary.smknesbu.sch.id/repository/instantrobux_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
stream_004_off00005320.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5320 25860 bytes
SHA-256: 5f99a1c88d64e8ad471df132372308ab9aa77d1b4ae4ba01cfbb5eda3fb0b695
font_01_sfnt_off00008ec4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EC4 18748 bytes
SHA-256: c2779f409c20461da0419d3e5e05a8fb34f6ee80a45bfb9719117d7713d1203c

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