Malicious PDF — malware analysis report

Static analysis result for SHA-256 774ab15681668ed5…

MALICIOUS

PDF

35.5 KB Created: 2021-07-02 00:21:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 407b13dd7ec42ca1caf8b47d2eefa328 SHA-1: 1d203329070cddeee90c166fca571844b0a4dd2c SHA-256: 774ab15681668ed5ac820cce7bf949f638115a7a737adb2bcd1b32b0ca42c565
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to malicious infrastructure, specifically promoting game hacks and cheats for popular games like Roblox and Coin Master. The primary lure appears to be a 'free generator' or 'game hack' disguised as a download. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a social engineering tactic to drive users to potentially malicious download sites.

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/download-roblox-for-free-seash-game-hack In PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/coin-master-free-spins-link-deutsch-ios_GM406889139.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/roblox-how-to-get-into-paid-access-games-for-free_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/slurp-cheat-in-roblox-download_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/coin-master-rewards-app_GM406889139.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/free-robux-hack-youtube-pc_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/where-can-i-get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/pig-master-coin-master-free-spin_GM406889139.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/roblox-jailbreak-hack-noclip_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/free-pokemon-go-accounts-level-30-2021_GM1094591345.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/hacks-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/coin-master-hack-tool-v1-9-download-free_GM406889139.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/minecraft-coins-free_GM479516143.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/animation-roblox-free_GM431946152.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/coin-master-hack-app-ios-download_GM406889139.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/coin-master-village-3_GM406889139.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/i-didnt-get-my-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/hack-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://bartonprivate.com.au/sites/default/files/files/free-account-roblox-with-robux_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
font_00_sfnt_off000033c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33C7 22176 bytes
SHA-256: 7960143b63f771874d1fef533de2767d246bd202ac92b594b83effd8459a53e1
font_01_sfnt_off000064ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64EE 19324 bytes
SHA-256: 43b8ebddc9bc4e52809cc6d7f4cae4e120f560946dcd0525e9dbcbe80257862f

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