Malicious PDF — malware analysis report

Static analysis result for SHA-256 3228fd52db616ab5…

MALICIOUS

PDF

42.4 KB Created: 2021-05-15 09:10:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a0b19c19019ace245cdf3afb4b055b59 SHA-1: cb162dbe3ae02c52a13f2774d7f66651b88b696e SHA-256: 3228fd52db616ab5e2bf2571c088b592e503309c7a62e5eb351bbed3187ba7b7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as 'Coin Master' game hacks. The document body and embedded links strongly suggest a lure to trick users into visiting these malicious sites, likely for further exploitation or malware delivery. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/406889139/coin-master-free-spins-link-download-hack-game-hack In PDF document text
    • https://disperkim.samarindakota.go.id/file/images/ckeditor/files/coin-master-hack-xyz-download-free_GM406889139.pdfIn PDF document text
    • https://disperkim.samarindakota.go.id/file/images/ckeditor/files/sites-for-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://disperkim.samarindakota.go.id/file/images/ckeditor/files/how-to-make-a-free-server-in-minecraft-java_GM479516143.pdfIn PDF document text
    • https://disperkim.samarindakota.go.id/file/images/ckeditor/files/rbx-hut-promo-codes_GM431946152.pdfIn PDF document text
    • https://disperkim.samarindakota.go.id/file/images/ckeditor/files/mcpe-master-hack-unlimited-coins-download_GM406889139.pdfIn PDF document text
    • https://disperkim.samarindakota.go.id/file/images/ckeditor/files/hack-coin-master-8-ball-pool_GM406889139.pdfIn PDF document text
    • https://disperkim.samarindakota.go.id/file/images/ckeditor/files/how-to-hack-a-minecraft-server_GM479516143.pdfIn PDF document text
    • https://disperkim.samarindakota.go.id/file/images/ckeditor/files/free-minecraft-java-code_GM479516143.pdfIn PDF document text
    • https://disperkim.samarindakota.go.id/file/images/ckeditor/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://disperkim.samarindakota.go.id/file/images/ckeditor/files/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://disperkim.samarindakota.go.id/file/images/ckeditor/files/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
    • https://disperkim.samarindakota.go.id/file/images/ckeditor/files/minecraft-ps4-code-free_GM479516143.pdfIn PDF document text
    • https://disperkim.samarindakota.go.id/file/images/ckeditor/files/coin-master-free-spins-link-2021-hack_GM406889139.pdfIn PDF document text
    • https://disperkim.samarindakota.go.id/file/images/ckeditor/files/coin-master-free-spin-and-coin-link-today_GM406889139.pdfIn PDF document text
    • https://disperkim.samarindakota.go.id/file/images/ckeditor/files/minecraft-windows-10-key-free_GM479516143.pdfIn PDF document text
    • https://disperkim.samarindakota.go.id/file/images/ckeditor/files/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
    • https://disperkim.samarindakota.go.id/file/images/ckeditor/files/coin-master-hack-tool-for-pc_GM406889139.pdfIn PDF document text
    • https://disperkim.samarindakota.go.id/file/images/ckeditor/files/coin-master-twitter-free-spins_GM406889139.pdfIn PDF document text
    • https://disperkim.samarindakota.go.id/file/images/ckeditor/files/coin-master-hack-pc-download_GM406889139.pdfIn PDF document text
    • https://disperkim.samarindakota.go.id/file/images/ckeditor/files/aristois-minecraft-hack_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b85.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B85 23948 bytes
SHA-256: 77e4289c5b2fb3ff172b79adbd4e5810d5bdb52968b24e198cdb5b82cb4aa305
font_01_sfnt_off0000823b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x823B 18636 bytes
SHA-256: c1ec4201564ac412151aee87dd7e29d753873e3095a9b57a5834a311c08c0525

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