Malicious PDF — malware analysis report

Static analysis result for SHA-256 10ec0452ec78eb69…

MALICIOUS

PDF

40.5 KB Created: 2021-04-26 21:11:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b4ccdada376bf6718590edd2eaa7230b SHA-1: d33acbe3f84352152ca77b2b05285dbcb78ab7d3 SHA-256: 10ec0452ec78eb698e25079f50bff0cb79db48834c8a789e67409802f2f9fbd0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to what appears to be a game hack generator, which is a common lure for phishing or malware distribution. The primary link redirects to known malicious infrastructure, indicating a high likelihood of malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a social engineering attack aimed at tricking users into visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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/hack-someones-account-roblox-game-hack In PDF document text
    • http://repository.unla.ac.id/repository/roblox-free-draw-alpha-2-discord.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/free-roblox-map.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/hacking-roblox-trhough-coockies.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/roblox-hacks-and-cheats.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/roblox-points-hack.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/robux-promode-hack-2021.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/cheat-engine-roblox-phantom-forces.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/how-to-get-any-hair-for-free-on-roblox.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/roblox-robux-hack-robux-generator.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/roblox-top3k-free-model.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
stream_003_off000040ef.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x40EF 25788 bytes
SHA-256: c340e4ce1c5439999368f8e66f191a746c3286eeddf150d38409157b888820a7
font_01_sfnt_off00007b28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B28 18684 bytes
SHA-256: 1ac6d0c59f4a5a3a532021fbde68e2c16a318b20b893395a4a0567e204f3f832

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