Malicious PDF — malware analysis report

Static analysis result for SHA-256 76be3a814b7fa3d8…

MALICIOUS

PDF

45.2 KB Created: 2021-06-03 06:52:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 22d6ec1a067223aba20451518b95bf1f SHA-1: d69be5284975fb5c68033fe12d455a83cf00c166 SHA-256: 76be3a814b7fa3d8c904533b8f7e00ad02239a2d2370fb51743c5ad0e4a8dadb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to known malicious infrastructure, specifically promoting game hacks and generators. The ML classifier also flagged this PDF as malicious. While no scripts were extracted, the embedded URLs and the nature of the lures strongly suggest a phishing or scam attempt designed to lead users to potentially harmful content or further malware downloads.

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-black-panther-mask-roblox-game-hack In PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/aristois-minecraft-hack_GM479516143.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/earnrobux_GM431946152.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/tiktok-follower-bot-free_GM835599320.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/rbx-free-robux_GM431946152.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/free-robux-2021-no-verification_GM431946152.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/minecraft-hack-app_GM479516143.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/games-that-can-be-hacked_GM431946152.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/free-robux-exe_GM431946152.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/como-hackear-el-juego-coin-master-en-espaol_GM406889139.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/minecraft-apk-android-free_GM479516143.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/lazyblocks-com-robux_GM431946152.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/coin-master-free-spins-iphone_GM406889139.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/earn-free-robux_GM431946152.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/coin-master-hack-software-download_GM406889139.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/new-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.lanumedispa.ie/uploaded_files/userfiles/files/cm-free-spins_GM406889139.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_004_off00005207.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5207 25296 bytes
SHA-256: 3e0f40b151af11a03c987d71b10af3eea642feba70da6e7a6da2415c3286af90
font_01_sfnt_off00008c1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C1F 18964 bytes
SHA-256: 99b928fbb71af39a14015d9b6eb62a391856b1b98a909fa80ef5e1726cd542c0

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