Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd772d93e5165058…

MALICIOUS

PDF

34.6 KB Created: 2021-07-03 23:56:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: a730c127efcc5624fef0d578012065db SHA-1: 572cca5ed0c92d7084195a47ed68c54869ae3e99 SHA-256: bd772d93e5165058806defdd315f4b3c52f2321f4a340bc36b00caac9c78584c
160 Risk Score

Malware Insights

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

The PDF contains a lure for a 'free generator / game hack' which links to known malicious redirector infrastructure. The embedded URL http://netcdn.tw/app/479516143/minecraft-fly-hack-game-hack is the primary indicator of malicious intent, likely leading to further malware download or phishing. The ML classifier also strongly flagged this PDF as malicious.

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/479516143/minecraft-fly-hack-game-hack In PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/tiktok-free-make-your-day_GM835599320.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/roblox-strucid-fortnite-hacks_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/hack-coin-master-apk-2021_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/how-to-get-free-robux-actually-roblox_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/free-followers-roblox-2021_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/free-minecraft-severs_GM479516143.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/spin-links-for-coin-master_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/how-to-hack-admin-roblox-dll_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/login-to-tiktok-free_GM835599320.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/free-pet-codes-bubble-gum-simulator-roblox_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/free-promo-codes-roblox_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/free-rap-lyrics-for-roblox_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/roblox-ways-to-cheat-money-on-vehicle-simulater_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/coin-master-hacks-for-cards_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/play-minecraft-online-free_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_off0000322a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x322A 22724 bytes
SHA-256: 09636c6ccd6eea2ea1ceaa437c67198d080b506ef66cc6afd90f5189532ef7c4
font_01_sfnt_off000064d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64D2 18280 bytes
SHA-256: 56f87322d6175f5188b2f3e54b3290a6e5898c7bed8f3d8c577e55e984b17e01

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