Malicious PDF — malware analysis report

Static analysis result for SHA-256 02c9a54a6ab8784a…

MALICIOUS

PDF

34.5 KB Created: 2021-07-04 03:48:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 77569208ceb30688aa095fbedfdef216 SHA-1: 97f47a9a082ddad59e1f13400c72092f776ed729 SHA-256: 02c9a54a6ab8784ace2f8efc4215d458d2488c2ddc37101323a5f613eba1f64f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains an embedded URI pointing to a URL that advertises a 'coin master hack'. The ML classifier strongly flagged this PDF as malicious, and the document body, though truncated, includes similar keywords and URLs. This suggests a phishing attempt to trick users into downloading potentially malicious software.

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.tw/app/406889139/coin-master-hack-programmers-game-hack In PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/does-coin-master-hack-work_GM406889139.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/levvvel-coin-master_GM406889139.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/clean-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/minecraft-svg-free_GM479516143.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/free-robux-rewards-site_GM431946152.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/minecraft-creative-mode-free_GM479516143.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/free-robux-gift-card-codes-unused-2021_GM431946152.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/robux-hack-site-2021_GM431946152.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/moon-static-coin-master-generator-hacks-free_GM406889139.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/hack-script-for-one-piece-legendary-roblox-copy-and-paste_GM431946152.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/points-for-free-robux_GM431946152.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/maverick-cheats-roblox_GM431946152.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/coin-master-hack-version-download-2021_GM406889139.pdfIn PDF document text
    • https://mayastisingkawang.com/__statics/gudangsoal/files/hack-roblox-jailbreak-2021-new_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_off000030f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30F6 22756 bytes
SHA-256: daa37caf7ce2828c3e368707f05ec00bf8697cdd33f195991c93f500a21ca72d
font_01_sfnt_off000063d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63D9 18416 bytes
SHA-256: 5741a127261724fddf521fc94ebfc06f31583a26a9f94a4c147a021759ab8b48

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