Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9f5b17bab37379f…

MALICIOUS

PDF

35.1 KB Created: 2021-06-22 03:30:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e18b4e127094aea1e3255dac62acc46a SHA-1: 47f2531a716020d7d8ae7afbe1e9dd3e8de446c5 SHA-256: e9f5b17bab37379fc30dbf1c08036d5369dddc294d81ea06514c4bb0fb0bdc7b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to a redirector URL that promises free game currency and hacks, indicating a phishing or scam lure. The ML classifier also flagged this PDF as malicious. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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-robux-secret-code-game-hack In PDF document text
    • https://financia-business-school.com/static/upload/files/minecraft-for-ipad-free_GM479516143.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/roblox-admin-commands-hack-with-cheat-engine-62_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/how-do-i-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/is-minecraft-free_GM479516143.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/robux-giver_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/can-i-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/coin-master-daily-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/how-to-get-minecraft-for-free-on-ps4_GM479516143.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/free-robux-working_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/android-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/minecraft-win-10-free_GM479516143.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/fiddler-hacks-for-roblox_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/roblox-cheat-without-human-verification_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/how-to-hack-in-roblox-prison-life_GM431946152.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • https://financia-business-school.com/static/upload/files/free-coin-master-app_GM406889139.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_off0000320b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x320B 22460 bytes
SHA-256: ba75ab25d522f85ac67fd45a33f225ffdab029fc43ba3c3661dbbb0b3f208d49
font_01_sfnt_off0000641f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x641F 18996 bytes
SHA-256: b684ba6474a5bf230a72955cc0c9d1502c3969d21759995b6e6f11e290b4be9a

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