Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac63a0d7ff76fc95…

MALICIOUS

PDF

34.1 KB Created: 2021-07-09 04:25:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4a79b94d23f672fe67c55dae42878658 SHA-1: dad9614cc38a4a04c1f1762b923961474c987ae9 SHA-256: ac63a0d7ff76fc95e4b9639b967b727bd3c8de4dee2ec826a5ade45ea8d17575
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically advertising 'free generators' and 'game hacks'. The document body reinforces this lure with similar promises. The primary heuristic firings indicate a malicious redirector, suggesting the intent is to lead the user to a site that likely hosts further malware or phishing 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.tw/app/479516143/how-to-get-minecraft-for-free-on-your-phone-game-hack In PDF document text
    • https://learning.man1lahat.sch.id/__statics/gudangsoal/files/expliot-box-for-roblox-free_GM431946152.pdfIn PDF document text
    • https://learning.man1lahat.sch.id/__statics/gudangsoal/files/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • https://learning.man1lahat.sch.id/__statics/gudangsoal/files/links-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://learning.man1lahat.sch.id/__statics/gudangsoal/files/roblox-red-shirt-free_GM431946152.pdfIn PDF document text
    • https://learning.man1lahat.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • https://learning.man1lahat.sch.id/__statics/gudangsoal/files/roblox-city-free-robux_GM431946152.pdfIn PDF document text
    • https://learning.man1lahat.sch.id/__statics/gudangsoal/files/coin-master-hack-tool-no-human-verification_GM406889139.pdfIn PDF document text
    • https://learning.man1lahat.sch.id/__statics/gudangsoal/files/roblox-old-avatar_GM431946152.pdfIn PDF document text
    • https://learning.man1lahat.sch.id/__statics/gudangsoal/files/hack-coin-master-without-root_GM406889139.pdfIn PDF document text
    • https://learning.man1lahat.sch.id/__statics/gudangsoal/files/roblox-fly-hack_GM431946152.pdfIn PDF document text
    • https://learning.man1lahat.sch.id/__statics/gudangsoal/files/twitter-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://learning.man1lahat.sch.id/__statics/gudangsoal/files/free-robux-master_GM431946152.pdfIn PDF document text
    • https://learning.man1lahat.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • https://learning.man1lahat.sch.id/__statics/gudangsoal/files/coin-master-daily-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • https://learning.man1lahat.sch.id/__statics/gudangsoal/files/how-to-get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://learning.man1lahat.sch.id/__statics/gudangsoal/files/hack-de-robux-pastebin_GM431946152.pdfIn PDF document text
    • https://learning.man1lahat.sch.id/__statics/gudangsoal/files/minecraft-free-minecraft_GM479516143.pdfIn PDF document text
    • https://learning.man1lahat.sch.id/__statics/gudangsoal/files/free-roblox-com_GM431946152.pdfIn PDF document text
    • https://learning.man1lahat.sch.id/__statics/gudangsoal/files/hack-2021-roblox_GM431946152.pdfIn PDF document text
    • https://learning.man1lahat.sch.id/__statics/gudangsoal/files/minecraft-hacker-skin_GM479516143.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
font_00_sfnt_off00003142.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3142 21868 bytes
SHA-256: b28d2d9cbbf53ad4c1389dcd2106504a5cb691241b050c7678f7a90dee454504
font_01_sfnt_off0000616e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x616E 18784 bytes
SHA-256: ab0cf905dc5988e311e4929c945d58dbde5e393d70311552a9ff538161641e37

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