Malicious PDF — malware analysis report

Static analysis result for SHA-256 48ad00d0feade2aa…

MALICIOUS

PDF

34.7 KB Created: 2021-07-06 04:54:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 96a5216c8f5846d0aaaa379e522b06de SHA-1: c63f400bfc00863057529d9c6ed5666a5980060c SHA-256: 48ad00d0feade2aad976bc2cebca62f3ae10f52dfc9d040bf8a69fafd9043702
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains embedded URLs and a heuristic firing for a visual download button, suggesting a lure to download potentially malicious content. The ML classifier strongly flagged this PDF as malicious, and the document body contains references to game hacks and generators, indicating a social engineering attempt to trick users into clicking malicious links.

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.tw/app/406889139/coin-master-free-generator-game-hack In PDF document text
    • http://muslib.unmus.ac.id/repository/village-coin_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-protosmasher-free-download_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/script-executor-roblox-free_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-win-robux_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-robux-microsoft_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-promo-dress-codes-for-roblox_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-coin-spin-daily-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/coin-master-hack-no-survey-2021_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/pokemon-go-free-versus-pc_GM1094591345.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/coin-master-game-free-download-for-pc_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/coin-master-daily-free-link_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/hack-asasin-roblox-aimbot_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/i-want-free-robux_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/survivor-hack-scrip-t-roblox-pastebin_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/minecraft-story-mode-free-download_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-use-a-exploit-in-roblox-with-cheat-engine_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-get-free-robux-2021-on-ipad-ios_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_002_off0000313f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x313F 23284 bytes
SHA-256: e27f3ae808c30045d31299c8e1973758fc879ce30297494bfbc3b52d5558efdc
font_01_sfnt_off000065bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65BC 17996 bytes
SHA-256: b02f073a20aa754ccf99b8052f1133ce8264aac68338fa0de914a5f25d31d964

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