Malicious PDF — malware analysis report

Static analysis result for SHA-256 ceb88240749e2e61…

MALICIOUS

PDF

48.3 KB Created: 2021-06-04 05:24:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 95efb80211f6ab5dc00c4550c3278cd6 SHA-1: d1db5b671e9abc1ab3b3b6dc09858e32c85cafd7 SHA-256: ceb88240749e2e614500d879e74e0d20208f44f72abac55f25438920671e24a3
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 lure, linking to a known malicious redirector. The document body, though partially garbled, also contains the same malicious URL. This indicates a clear attempt to trick users into visiting a dangerous site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.online/app/431946152/hack-para-counter-blox-roblox-offensive-download-game-hack In PDF document text
    • https://opac.heritagejkt.org/repository/how-to-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/minecraft-for-chromebook-free_GM479516143.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/how-to-get-minecraft-for-free-on-mobile_GM479516143.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/how-to-get-minecraft-for-free-on-ps4-2021_GM479516143.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/coin-master-link-spin_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/coin-master-hack-blog_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/inappropriate-roblox-games-2021_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/robuxmatch-com-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/free-spin-coin-master-new-link_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/hack-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/free-robux-gen_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/coin-master-hack-online-generator-without-human-verification_GM406889139.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/pokemon-go-free-pokecoins-xyz_GM1094591345.pdfIn PDF document text
    • https://opac.heritagejkt.org//repository/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • https://opac.heritagejkt.org/repository/minecraft-free-education_GM479516143.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_004_off0000506a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x506A 25052 bytes
SHA-256: 75b9ff32064db15b8521d86685ec2797763100055d5fa8d0c8bd07521968ae47
font_01_sfnt_off000089be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89BE 3992 bytes
SHA-256: ca9cd4f0345d8483bda3e807ea4e40142b8bf70d3672af2d6a5dd7953d1a2391
font_02_sfnt_off000096e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96E5 19320 bytes
SHA-256: d698ef670f79aaccc0f4d423d4c5596e7d806ed01b1c0499d82afd8c780a26e8

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