Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4f2898d9f21c193…

MALICIOUS

PDF

31.7 KB Created: 2021-06-11 08:20:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1bc8d130320ac7625e70981e34d777ec SHA-1: 7194174c2b5987fb8afe4e824c375d30bca3d299 SHA-256: e4f2898d9f21c193d500377f0b61c81295a1f836c8ea184a1107f0397be7eeb4
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to known malicious infrastructure, specifically promoting free Robux and game hacks. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains URLs that are consistent with a phishing or scam lure, aiming to direct users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 2

  • 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.
  • 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/huskybus.com-free-robux-game-hack In PDF document text
    • https://digilib.stieama.ac.id/repository/admin-hack-script-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-hack-tool-v1-9-apk_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/coin-master-mod_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/pepsi-hacks-roblox-script-cbro_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/oprewards-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/earn-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-generator-for-kids_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/hacks-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/john-doe-roblox-hacker_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/get-free-hair-in-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-printable-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/legit-coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/roblox-car-crushers-2-free_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/code-to-redeem-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stieama.ac.id/repository/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004ef8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4EF8 20223 bytes
SHA-256: 9cc6be024c33e18fbd4e6bf2f2d3c81fd1ecd965c8b2b51065a21c8a51404f67

Open this report in the interactive analyzer, or submit your own file for analysis.