Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a5befdd5a151d25…

MALICIOUS

PDF

49.2 KB Created: 2021-06-03 06:42:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 81299149ffe89a141ce7373e4486c5f6 SHA-1: 342badac12c528fd6c362bed42cb344df413eb1d SHA-256: 2a5befdd5a151d252132eb33b3b79b2a024d0673abee16c1d49e0e1ee37959f9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to known malicious infrastructure, specifically promoting 'game hacks' and 'free spins'. The primary lure appears to be a 'Coin Master Exchange' scam. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or scam attempt designed to lead users to potentially harmful content or further malicious downloads.

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/406889139/coin-master-exchange-40-free-spins-game-hack In PDF document text
    • http://slims.abulyatama.ac.id/repository/free-robux-clothes_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/roblox-hack-app_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-hack-pc-free_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-minecraft-skins-pc_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/coin-master-hack-app-for-ios_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/rbl-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/spin-coin_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/spinuri-gratis-coin-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-pc-hack-tool_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/roblox-hacks-com_GM431946152.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/how-to-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/coin-master-hack-pc-cheat-engine_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/mcmaster-club-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/minecraft_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/minecraft-ios-mods_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id/repository/wurst-download_GM479516143.pdfIn PDF document text
    • http://slims.abulyatama.ac.id//repository/free-robux-obby-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005268.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5268 27164 bytes
SHA-256: 19d92798a01a72aef3ab1ea4501fb913e74d6aa9ee414ee9274d8d2eb6fa7e1f
font_01_sfnt_off00009021.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9021 3412 bytes
SHA-256: e6e56db8b5dca4e08a3c631722a46355a63c6dd9bfcec2917280e142fadd773c
font_02_sfnt_off00009c2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C2B 18784 bytes
SHA-256: 02a21a8f4d043716a383ca2a996404ae5ffd223ec109726667024d192b61d1da

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