Malicious PDF — malware analysis report

Static analysis result for SHA-256 384ac81827910342…

MALICIOUS

PDF

36.7 KB Created: 2021-06-19 14:41:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 73d0127f85a9b5bad182180b88bccb48 SHA-1: 503d10e05bcad5b8594c6acbabb08b4569ef70aa SHA-256: 384ac818279103420851de909bc98ba7e805bc59b70e6389535bab208f08e60d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a 'free generator / game hack' which links to known malicious redirector infrastructure. The embedded URL http://netcdn.co/app/431946152/how-to-get-free-unlimited-robux-indigojoe-game-hack is the primary indicator of malicious intent. The document body and heuristics confirm the phishing nature of the content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/how-to-get-free-unlimited-robux-indigojoe-game-hack In PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/free-mods-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/future-roblox-hack_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/free-robux-group_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/how-to-get-minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/how-i-get-free-robux-meme_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/robux-hack-giveaway_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/how-do-you-get-free-robux-on-your-tablet_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/apps-that-get-you-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/bee-swarm-roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/roblox-why-free-clothes-are-unavailable_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/free-roblox-stuff-hood_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/roblox-jailbreak-hack-script-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/how-to-protect-against-hacks-in-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/roblox-teleport-hack-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/roblox-cheat-engine-hot-to-get-admin_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/get-free-robux-on-a-ipad_GM431946152.pdfIn PDF document text
    • https://perpustakaan.smp1madiun.sch.id/repository/roblox-murder-mystery-hack_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003399.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3399 23736 bytes
SHA-256: 9e934aabf9b2195dbf862b99c9ebc10c5d78f813bd8c285d2910732cbc964fb0
font_01_sfnt_off00006859.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6859 19800 bytes
SHA-256: 0827f0b36783f7408e3a17afa443728285dd0233d55ccf89b41c6d1dbf3e074c

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