Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9ed75eab745ebc2…

MALICIOUS

PDF

36.0 KB Created: 2021-06-28 23:33:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 42f803b38c30d5e21a02e0dbd398b64d SHA-1: 26373bb019071389fce65f45700a1997faa9315e SHA-256: a9ed75eab745ebc2f26a2862b3947c80446e8422f70b31d1bae2f0d356e8ee60
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to a known malicious redirector, disguised as generators for free game currency or hacks. The document body and embedded URLs strongly suggest a phishing or scam attempt to lure users to malicious websites. No scripts were extracted, but the presence of multiple malicious links indicates a high likelihood of redirecting users to further malicious content or exploits.

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/free-robux-pastebin-com-game-hack In PDF document text
    • https://elearning.diniyyahpasia.sch.id/__statics/gudangsoal/files/hack-proxo-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.diniyyahpasia.sch.id/__statics/gudangsoal/files/how-to-get-speed-hacks-on-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://elearning.diniyyahpasia.sch.id/__statics/gudangsoal/files/best-site-for-free-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://elearning.diniyyahpasia.sch.id/__statics/gudangsoal/files/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
    • https://elearning.diniyyahpasia.sch.id/__statics/gudangsoal/files/coin-master-spin-hack-without-verification_GM406889139.pdfIn PDF document text
    • https://elearning.diniyyahpasia.sch.id/__statics/gudangsoal/files/coin-master-exchange-40-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.diniyyahpasia.sch.id/__statics/gudangsoal/files/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.diniyyahpasia.sch.id/__statics/gudangsoal/files/is-minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • https://elearning.diniyyahpasia.sch.id/__statics/gudangsoal/files/free-gfx-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.diniyyahpasia.sch.id/__statics/gudangsoal/files/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
    • https://elearning.diniyyahpasia.sch.id/__statics/gudangsoal/files/coin-master-hack-online-2021_GM406889139.pdfIn PDF document text
    • https://elearning.diniyyahpasia.sch.id/__statics/gudangsoal/files/how-to-download-wurst_GM479516143.pdfIn PDF document text
    • https://elearning.diniyyahpasia.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-quora_GM406889139.pdfIn PDF document text
    • https://elearning.diniyyahpasia.sch.id/__statics/gudangsoal/files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://elearning.diniyyahpasia.sch.id/__statics/gudangsoal/files/roblox-dll-cheat_GM431946152.pdfIn PDF document text
    • https://elearning.diniyyahpasia.sch.id/__statics/gudangsoal/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://elearning.diniyyahpasia.sch.id/__statics/gudangsoal/files/lazyblocks-com-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.diniyyahpasia.sch.id/__statics/gudangsoal/files/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • https://elearning.diniyyahpasia.sch.id/__statics/gudangsoal/files/gold-card-coin-master-free_GM406889139.pdfIn PDF document text
    • https://elearning.diniyyahpasia.sch.id/__statics/gudangsoal/files/is-minecraft-realms-free_GM479516143.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_off0000333b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x333B 23128 bytes
SHA-256: ebe682e43d2a8cef31ceeee30b3752564418676255e31ca7a7594f564e9ac6e7
font_01_sfnt_off0000671b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x671B 19356 bytes
SHA-256: 6b35f8a7fd41cf3cb2e8707c13ce6af780a4e8949ba5d19d03a26c85882395b1

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