Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c4882f1c5ee328d…

MALICIOUS

PDF

35.5 KB Created: 2021-06-28 14:24:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 82f3e495eaf418b1bef5bf1eecc69612 SHA-1: da3fbe61c100215ef3eaa629eff51845a57c02a2 SHA-256: 4c4882f1c5ee328daf497a07cc650b4a4b9e8aab70b8bc217d3d0dbc36705180
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that lead to a known malicious redirector, disguised as a 'free generator / game hack'. The document body and heuristics indicate a lure for game-related cheats, likely to deliver a malicious payload or phish for credentials. No scripts were extracted, but the PDF structure and embedded URLs strongly suggest a malicious intent to redirect users to harmful 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/comment-hacker-roblox-facilement-sur-pc-2021-en-francais-game-hack In PDF document text
    • https://elearning.mtsn4kotajambi.sch.id/__statics/gudangsoal/files/minecraft-alt-accounts-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn4kotajambi.sch.id/__statics/gudangsoal/files/coin-master-game-hunter_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn4kotajambi.sch.id/__statics/gudangsoal/files/get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn4kotajambi.sch.id/__statics/gudangsoal/files/how-do-u-hack-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4kotajambi.sch.id/__statics/gudangsoal/files/minecraft-ios-mods_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn4kotajambi.sch.id/__statics/gudangsoal/files/free-roblox-keyloggers-v3rmillion_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4kotajambi.sch.id/__statics/gudangsoal/files/free-online-minecraft-server_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn4kotajambi.sch.id/__statics/gudangsoal/files/murder-island-cheat-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4kotajambi.sch.id/__statics/gudangsoal/files/coinmaster-free-spins-link_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn4kotajambi.sch.id/__statics/gudangsoal/files/robux-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4kotajambi.sch.id/__statics/gudangsoal/files/jailbreak-script_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4kotajambi.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-in-jail-breck_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4kotajambi.sch.id/__statics/gudangsoal/files/hack-murder-mystery-2-roblox-a-telecharger_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4kotajambi.sch.id/__statics/gudangsoal/files/free-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn4kotajambi.sch.id/__statics/gudangsoal/files/how-to-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn4kotajambi.sch.id/__statics/gudangsoal/files/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn4kotajambi.sch.id/__statics/gudangsoal/files/minecraft-free-download-windows_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn4kotajambi.sch.id/__statics/gudangsoal/files/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4kotajambi.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn4kotajambi.sch.id/__statics/gudangsoal/files/instagram-free-coin-master-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
font_00_sfnt_off00003119.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3119 22584 bytes
SHA-256: 2a1b16f592521ebf3ac5a63979ff2c108e18139c3fa2ec9c21225ed13924e9bb
font_01_sfnt_off00006334.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6334 20000 bytes
SHA-256: 6f86e5e9356a989024c6690c5d5ef2803aafdcbcf54501525ca6f538860596c5

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