Malicious PDF — malware analysis report

Static analysis result for SHA-256 329ffbc89b0da226…

MALICIOUS

PDF

35.1 KB Created: 2021-07-03 22:13:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d41bb6a17cd64e28b98b5301e8e839be SHA-1: 5a9e376de072ba31d0506a1f4e4218486a2facc7 SHA-256: 329ffbc89b0da22632a80e014c8947b078c6cf661a907572eff78647e01badd2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting game hacks and cheats. The primary lure URL is http://netcdn.tw/app/406889139/coin-master-hack-apk-with-fb-login-game-hack, which is flagged as a known malicious redirector. The document body and embedded links suggest a social engineering tactic to trick users into visiting these sites, likely to download further malware or engage in scams.

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-apk-with-fb-login-game-hack In PDF document text
    • https://domc.tw/upload/files/free-robux-game-nocopyslocked_GM431946152.pdfIn PDF document text
    • https://domc.tw/upload/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://domc.tw/upload/files/earn-points-for-robux_GM431946152.pdfIn PDF document text
    • https://domc.tw/upload/files/roblox-the-conquerors-hack_GM431946152.pdfIn PDF document text
    • https://domc.tw/upload/files/coin-master-daily-bonus-hack_GM406889139.pdfIn PDF document text
    • https://domc.tw/upload/files/free-code-robux-2021_GM431946152.pdfIn PDF document text
    • https://domc.tw/upload/files/free-redeem-code-for-coin-master_GM406889139.pdfIn PDF document text
    • https://domc.tw/upload/files/how-to-hack-roblox-with-cheat-engine-67_GM431946152.pdfIn PDF document text
    • https://domc.tw/upload/files/how-to-get-a-free-quirk-in-boku-no-roblox_GM431946152.pdfIn PDF document text
    • https://domc.tw/upload/files/codes-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://domc.tw/upload/files/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://domc.tw/upload/files/free-dominus-roblox_GM431946152.pdfIn PDF document text
    • https://domc.tw/upload/files/can-you-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • https://domc.tw/upload/files/free-robux-rewards_GM431946152.pdfIn PDF document text
    • https://domc.tw/upload/files/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • https://domc.tw/upload/files/hack-my-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://domc.tw/upload/files/how-to-get-free-builders-club-on-roblox-ios_GM431946152.pdfIn PDF document text
    • https://domc.tw/upload/files/objet-roblox-library-free_GM431946152.pdfIn PDF document text
    • https://domc.tw/upload/files/coin-master-free-spins-link-2021-haktuts_GM406889139.pdfIn PDF document text
    • https://domc.tw/upload/files/how-to-downgrade-minecraft-pe_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
font_00_sfnt_off00003132.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3132 23120 bytes
SHA-256: 06612a8d6a4f7f997373db9fb8c7529da3e1388f4bb4dffa962caf0824ebcb42
font_01_sfnt_off000064e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64E7 18868 bytes
SHA-256: 64625659131879135842d7eca704acc58928c97793d04a50d93f3f4b5b29fb0a

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