Malicious PDF — malware analysis report

Static analysis result for SHA-256 69c453cc96e27796…

MALICIOUS

PDF

36.1 KB Created: 2021-06-27 06:06:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c0c43777890fc1566ff1b5108b9efc20 SHA-1: a5ee48b358f40497e318aece33e21602e00dcf5a SHA-256: 69c453cc96e27796dd0eb25b07468e72994d96d4cd6db9763c3836076815457e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains links designed to lure users into clicking on what appears to be a generator or hack for popular games. The primary link, http://netcdn.co/app/431946152/free-roblox-robux-codes-2021-game-hack, is flagged as malicious and part of a redirector infrastructure. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a social engineering tactic to drive traffic to potentially malicious sites, likely for credential harvesting or further malware delivery.

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/free-roblox-robux-codes-2021-game-hack In PDF document text
    • http://elearning.mtsamanahruteng.sch.id/__statics/gudangsoal/files/coin-master-free-spins-may-11-2021_GM406889139.pdfIn PDF document text
    • http://elearning.mtsamanahruteng.sch.id/__statics/gudangsoal/files/coin-master-free-spins-coins_GM406889139.pdfIn PDF document text
    • http://elearning.mtsamanahruteng.sch.id/__statics/gudangsoal/files/coin-master-free-spins-2021-apk_GM406889139.pdfIn PDF document text
    • https://elearning.mtsamanahruteng.sch.id/__statics/gudangsoal/files/coin-master-spin-link-2021_GM406889139.pdfIn PDF document text
    • http://elearning.mtsamanahruteng.sch.id/__statics/gudangsoal/files/robux-survey_GM431946152.pdfIn PDF document text
    • http://elearning.mtsamanahruteng.sch.id/__statics/gudangsoal/files/free-arsenal-hacks_GM431946152.pdfIn PDF document text
    • https://elearning.mtsamanahruteng.sch.id/__statics/gudangsoal/files/coin-master-free-spins-hack-2021_GM406889139.pdfIn PDF document text
    • http://elearning.mtsamanahruteng.sch.id/__statics/gudangsoal/files/coin-master-mod-apk-latest-version-free-download_GM406889139.pdfIn PDF document text
    • https://elearning.mtsamanahruteng.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins-for-today_GM406889139.pdfIn PDF document text
    • http://elearning.mtsamanahruteng.sch.id/__statics/gudangsoal/files/coin-master-free-link-spin_GM406889139.pdfIn PDF document text
    • https://elearning.mtsamanahruteng.sch.id/__statics/gudangsoal/files/insane-how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsamanahruteng.sch.id/__statics/gudangsoal/files/free-game-packs-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsamanahruteng.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins-generator_GM406889139.pdfIn PDF document text
    • https://elearning.mtsamanahruteng.sch.id/__statics/gudangsoal/files/pubg-uc-to-rm_GM1330123889.pdfIn PDF document text
    • https://elearning.mtsamanahruteng.sch.id/__statics/gudangsoal/files/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://elearning.mtsamanahruteng.sch.id/__statics/gudangsoal/files/how-to-send-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.mtsamanahruteng.sch.id/__statics/gudangsoal/files/coin-master-apk-free-download_GM406889139.pdfIn PDF document text
    • http://elearning.mtsamanahruteng.sch.id/__statics/gudangsoal/files/free-minecraft-addons_GM479516143.pdfIn PDF document text
    • https://elearning.mtsamanahruteng.sch.id/__statics/gudangsoal/files/free-roblox-generator-for-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.mtsamanahruteng.sch.id/__statics/gudangsoal/files/ccv3-cheat-engine-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 5

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_off00003644.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3644 22024 bytes
SHA-256: d0d928c3e5d4c6ed7bb80facaf2667c0bc7cdfc3aab81a55ec9d35c96457283c
font_01_sfnt_off000066f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66F8 19364 bytes
SHA-256: 2437bbe1360f2e6f2264696c213f462035425e487199ea7acaa2776e91fee6b8

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