Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe280b9e5591daf1…

MALICIOUS

PDF

53.9 KB Created: 2021-05-17 16:17:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: af723f63036e79cdf497a879c1cdf8b4 SHA-1: 3d0e39e1d39eaa598929b805bb3e67417d8c611a SHA-256: fe280b9e5591daf1f16e5f7ac30a39f6807012ae80c9b75102ac067ea7b0af7e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating malicious redirector links, specifically targeting users with lures for game hacks and currency. The document body and embedded URLs point to infrastructure known for hosting such scams. The primary malicious URL identified is https://netcdn.xyz/app/431946152/how-to-get-free-robux-games-game-hack, which is part of a chain of redirects originating from domains like jjpremiers.com.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8494

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-games-game-hack In PDF document text
    • https://www.jjpremiers.com/files/coin-master-free-spin-link-daily_GM406889139.pdfIn PDF document text
    • http://jjpremiers.com/files/free-robux-redeem-codes-2021_GM431946152.pdfIn PDF document text
    • http://jjpremiers.com/files/minecraft-pe-apk-free-download_GM479516143.pdfIn PDF document text
    • http://jjpremiers.com/files/games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://jjpremiers.com/files/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • https://www.jjpremiers.com/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://www.jjpremiers.com/files/coin-master-free-coin-hack_GM406889139.pdfIn PDF document text
    • https://www.jjpremiers.com/files/coin-master-free-spins-hack-ios_GM406889139.pdfIn PDF document text
    • http://jjpremiers.com/files/minecraft-clipart-free_GM479516143.pdfIn PDF document text
    • https://www.jjpremiers.com/files/minecraft-thumbnail-maker-free_GM479516143.pdfIn PDF document text
    • https://www.jjpremiers.com/files/rbxcity-free-robux_GM431946152.pdfIn PDF document text
    • https://www.jjpremiers.com/files/real-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://jjpremiers.com/files/roblox-apk-hack_GM431946152.pdfIn PDF document text
    • http://jjpremiers.com/files/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://jjpremiers.com/files/how-to-hack-coin-master-android_GM406889139.pdfIn PDF document text
    • https://www.jjpremiers.com/files/how-to-hack-a-minecraft-account_GM479516143.pdfIn PDF document text
    • https://www.jjpremiers.com/files/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • https://www.jjpremiers.com/files/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://jjpremiers.com/files/i-need-more-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://jjpremiers.com/files/free-minecraft-texture-packs-java_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004b5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B5D 26164 bytes
SHA-256: 85df440d42aa14c5bb5c3050ea15e4f70aaf6e5974f961e63d0d417f36c93eab
font_01_sfnt_off000087fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87FB 3964 bytes
SHA-256: f6b9a386ee4e0aff622a98b2230905da71eab0ca98398cb52018fda3528d3e2a
font_02_sfnt_off0000955f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x955F 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_03_sfnt_off0000a266.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA266 3396 bytes
SHA-256: e59bc53cd4c0ee65dc1533becad2866f345dcb060e6c68bb8187d21cb9f973ee
font_04_sfnt_off0000ae59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE59 18768 bytes
SHA-256: f0658a260a8345a08039bbf50682235c712e1d6bfd9b3eebd82ad720f29012b5

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