Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a2b3c16c0dcb6f7…

MALICIOUS

PDF

34.5 KB Created: 2021-06-25 20:54:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 4e8c60af40561ed141d239a2b83b7df3 SHA-1: c9ad1002996832c986070f741c134d701ad9ae3c SHA-256: 9a2b3c16c0dcb6f70feea2afd3d4ff33de22d9a8630f3482db0677c3dc531803
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to malicious infrastructure, specifically advertising free game currency or hacks for popular games like Roblox and Coin Master. The ML classifier and specific PDF heuristics strongly indicate malicious intent, likely to lead users to a scam or further malware. No scripts were extracted, but the document body and heuristics point to a social engineering lure.

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/www-blox-us-free-robux-game-hack In PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/coinmasterfreespinlink_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/free-roblox-avatar-items_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/coin-master-gold-cards-hack_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/roblox-builders-club-free_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/minecraft-cheat-client_GM479516143.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/robux-robux_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-money_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/free-roblox-passwords_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/tiktok-free-names_GM835599320.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-xbox_GM479516143.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/free-coin-app_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/minecraft-java-for-free_GM479516143.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/how-do-you-get-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/coin-master-free-link_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/roblox-hack-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/coin-master-free-spin-link-today-download_GM406889139.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/roblox-wipeout-beta-hack_GM431946152.pdfIn PDF document text
    • https://e-learning.mtsn5klaten.sch.id/__statics/gudangsoal/files/spider-cola-roblox-free_GM431946152.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_off00002f60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F60 22436 bytes
SHA-256: 1cbb47740e3ee8d9f309ba1e84ba9423601c5d8d7fb3825de1bd86dce553c3ec
font_01_sfnt_off00006181.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6181 19152 bytes
SHA-256: d30ca3107da4828fdd77b938790b1f6085b62a74b0d2e46ceb8a660cb1d46f8c

Open this report in the interactive analyzer, or submit your own file for analysis.