Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1ae0ebb8c3d5980…

MALICIOUS

PDF

44.4 KB Created: 2021-06-03 10:51:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7282eec17868705fa590aa1fbfd82f09 SHA-1: d6a56ca65d019f16138fbe4818d7cf0f730b680e SHA-256: e1ae0ebb8c3d59809a630a7984f6e9963ef255940f1a96bf4866ab1706fe5550
160 Risk Score

Malware Insights

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

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free Robux' or game hacks. The presence of these links and the ML classifier's high confidence score indicate a malicious intent to lure users to potentially harmful sites. While no scripts were explicitly extracted, the PDF structure and embedded links suggest it's designed to exploit user interest in free in-game items to redirect them to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.online/app/431946152/free-robux-with-no-survey-game-hack In PDF document text
    • https://ifef.es/ckfinder/userfiles/files/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/free-2021-robux_GM431946152.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/free-spin-coin-master-link-download_GM406889139.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/hacked-roblox-game_GM431946152.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/minecraft-pocket-edition-mods-for-free_GM479516143.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/roblox-tix-generator_GM431946152.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/coin-master-fun-hack_GM406889139.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/robux-rewards_GM431946152.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/xray-hack_GM479516143.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/free-texture-packs-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/pubg-uc-buy-online-pakistan_GM1330123889.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/websites-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/what-is-exploiting-in-roblox_GM431946152.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/roblox-bloxburg-free-money_GM431946152.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/coin-master-free-spins-link-today-haktuts_GM406889139.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
    • https://ifef.es/ckfinder/userfiles/files/www-coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • https://collectrobux.coIn 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
stream_004_off00004eb6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4EB6 25712 bytes
SHA-256: 70dafeb23153e344cec3b6548378e55c54378098cc07d7742fb26969bcf34790
font_01_sfnt_off00008931.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8931 18896 bytes
SHA-256: c9a06fd84da7c680e9235c6c693ba85d62e2f793adf65e6d39442d95d7fb6fc9

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