Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0ea892896556e69…

MALICIOUS

PDF

51.3 KB Created: 2021-06-09 10:24:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3493ddccfaf6e83f7d4513b2be5c03bc SHA-1: 425a917e9f80bb9bb8b10710794eaafd9ba443e5 SHA-256: e0ea892896556e69d6ad0e30c7a6ecca1ba2112f551d087af0ce9200ee8f2328
160 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically targeting users with lures related to game hacks. The embedded URL, https://netcdn.tw/app/431946152/how-to-hack-assassin-in-roblox-game-hack, is associated with this malicious redirection. While no scripts were extracted, the PDF structure and the nature of the lure suggest an attempt to exploit user interest in obtaining in-game advantages, likely leading to further malicious content or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9685

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.tw/app/431946152/how-to-hack-assassin-in-roblox-game-hack In PDF document text
    • http://elib-s2.ubl.ac.id/repository/minecraft-114-4-download-free_GM479516143.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/minecraft-pe-free-apk_GM479516143.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/coin-master-rewards-free-spins_GM406889139.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/robux-free-2021_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/how-to-get-verified-on-tiktok-for-free_GM835599320.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/free-robux-gift-card-generator_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/rblx-city-free-robux_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/how-to-get-free-tiktok-followers_GM835599320.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/minecraft-hacked-client-18_GM479516143.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/free-1-000-robux_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/redeem-roblox-card-free_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/free-roblox-gift-card-codes-2021-unused_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/free-roblox-cards-2021_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/how-do-i-get-free-spins-in-coin-master_GM406889139.pdfIn 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005224.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5224 27632 bytes
SHA-256: 167936088106d88f5d845dc26e755cb866173b0aa3931c807aff4784026cf720
font_01_sfnt_off0000900a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x900A 2880 bytes
SHA-256: 552e62132cae3603ce0819827e44d96a992bd06014cc5080bf3af4b2ea155b3e
font_02_sfnt_off000099d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99D8 3120 bytes
SHA-256: 49734f51977507cba6bc8d3ad0cee0363aa119856db094427deb9cf565bb7bca
font_03_sfnt_off0000a4ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA4EC 18468 bytes
SHA-256: 00cecfb6a6c06055ed16fcea88f3448fce54fd20faef40e55f0f204a1f9b4b47

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