Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb14fb3f17bccef8…

MALICIOUS

PDF

42.1 KB Created: 2021-05-11 18:34:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 083037e1b7fd912f7269321c5cbe5a25 SHA-1: 92fe9872d24c48aa56f510154155324f085e45b6 SHA-256: eb14fb3f17bccef83118f85c6e56fbf5c3c9a6e3b744c1eb0138ebc1ff130345
160 Risk Score

Malware Insights

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

The PDF contains lures for game hacks and free currency, directing users to malicious redirectors. These redirectors host further malicious PDFs, indicating a multi-stage download and redirection scheme. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/431946152/how-to-get-free-robux-on-computer-game-hack In PDF document text
    • http://perpus.i2s-learning.com//repository/minecraft-bedrock-free_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-robux-website_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-play-minecraft-with-friends-for-free_GM479516143.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/how-to-get-100-robux-for-free_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/coin-master-hack-without-human-verification-india_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/how-to-get-free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/coin-master-spin-pattern_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-chest-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/how-to-get-free-robux-easy_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/get-free-robux-info_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/how-to-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/microsoft-rewards-robux_GM431946152.pdfIn PDF document text
    • http://perpus.i2s-learning.com/repository/free-coin-master-spins-blogger_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/coin-master-free-spins-hack-but-no-surveys_GM406889139.pdfIn PDF document text
    • http://perpus.i2s-learning.com//repository/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • https://www.communes.comIn 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_003_off00004974.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4974 24204 bytes
SHA-256: ca5a2d480b3651713517e30a8b0d941fc5b389aed24547b346f39a323c62aaa1
font_01_sfnt_off000080b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80B1 18716 bytes
SHA-256: 2c87d7c74b7bcd7fade186f781764640e14dfaf637cd5e280742c056ede93ace

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