Malicious PDF — malware analysis report

Static analysis result for SHA-256 faa0e1fe73e6ebb7…

MALICIOUS

PDF

46.3 KB Created: 2021-06-08 22:24:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 504562f3ae7ede5b8e36db01d36f75ef SHA-1: 09591572bae7afc687f156db6e947ce289d8fb76 SHA-256: faa0e1fe73e6ebb74f3c846ce180b51ff00e528b09b5d5460946a398115c974a
160 Risk Score

Malware Insights

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

The PDF contains multiple links to known malicious redirectors and lures users with promises of game hacks. The primary redirector URL is https://netcdn.tw/app/431946152/free-jailbreak-roblox-money-game-hack, which likely leads to further malicious content or exploits. The document's structure and embedded URLs indicate a phishing or social engineering attempt to trick users into visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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.tw/app/431946152/free-jailbreak-roblox-money-game-hack In PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/roblox-piano-hack_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/get-me-free-robux_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/robux-game-com_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-robux-no-human-verify_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/coin-master-hack-xyz-download-free_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/how-to-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/300-daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/coin-master-free_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/roblox-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/best-free-spin-app-for-coin-master_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/coin-master-daily-free-spins-link-app-download_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/free-daily-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/minecraft-for-free-games_GM479516143.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana//repository/coin-master-hacks-no-downloading_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/coin-master-village-cost_GM406889139.pdfIn PDF document text
    • http://stiepariperpus.web.id/sarjana/repository/how-to-get-free-robux-without-downloading-any-apps_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
stream_004_off0000520c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x520C 28132 bytes
SHA-256: d878d583a33271cfd7cc661e317e93e2e066a851dcea250f7d0765a21d897b41
font_01_sfnt_off00009097.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9097 19008 bytes
SHA-256: 691fc96f891f5abc8b205b09a374753f0c60c700063da661251f8651d14a4faf

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