Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3a9dfe9c07eb78e…

MALICIOUS

PDF

36.2 KB Created: 2021-07-02 03:38:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9b159f5097b9e052f9f8a8e017db90a8 SHA-1: b8ef2eefd3220d20a2c7dabe00a9185f34ebdd11 SHA-256: e3a9dfe9c07eb78e902390567fd0b1b20b9f6cba472d8a2a7fcc9168bf324ee8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to a known malicious redirector, disguised as offers for free game currency or hacks. The document body explicitly contains the redirector URL, indicating a lure to trick users into clicking through. While no scripts were extracted, the presence of malicious links and the ML classifier's high confidence suggest a phishing or scam attempt.

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/free-quick-robux-game-hack In PDF document text
    • https://pedungan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/minecraft-xbox-360-free-download-code_GM479516143.pdfIn PDF document text
    • https://pedungan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-links-coin-master_GM406889139.pdfIn PDF document text
    • https://pedungan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • https://pedungan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • https://pedungan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-robux-offer-earning-sites_GM431946152.pdfIn PDF document text
    • https://pedungan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-roblox-hats-surveys_GM431946152.pdfIn PDF document text
    • https://pedungan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/roblox-hack-blox-piece_GM431946152.pdfIn PDF document text
    • https://pedungan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/minecraft-realms-free-trial_GM479516143.pdfIn PDF document text
    • https://pedungan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-online-hack-link_GM406889139.pdfIn PDF document text
    • https://pedungan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-tiktok-accounts-with-2021-fans_GM835599320.pdfIn PDF document text
    • https://pedungan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/working-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://pedungan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/hack-coin-master-2021-pc_GM406889139.pdfIn PDF document text
    • https://pedungan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
    • https://pedungan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/roblox-games-with-free-robux_GM431946152.pdfIn PDF document text
    • https://pedungan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • https://pedungan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • https://pedungan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-hack-tool-v1-9-download-free_GM406889139.pdfIn PDF document text
    • https://pedungan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/on-roblox-how-do-you-get-free-bc_GM431946152.pdfIn PDF document text
    • https://pedungan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/hack-coin-master-spin_GM406889139.pdfIn PDF document text
    • https://pedungan.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-robux-no-password_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_off000035b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35B1 22720 bytes
SHA-256: 928238a0c8f7402085aa4faf1ce3adc1c1eeb4d9f3249ed9882927105e2ba693
font_01_sfnt_off0000685d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x685D 19164 bytes
SHA-256: d1dc0b1ef4c6d41ba2ec1bb64c30b2a15e38242bb6d3305b0933dbf5d718e195

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