Malicious PDF — malware analysis report

Static analysis result for SHA-256 76aa28893e45b8fa…

MALICIOUS

PDF

35.2 KB Created: 2021-06-30 10:41:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 719b5cfb83efdd3140d78d025fb12ad8 SHA-1: 933d280ac6cf3ab9954f717362adc99390c8910f SHA-256: 76aa28893e45b8fa0a4f6abe12e9aa33306c5ff85468381abb5b05defb616b49
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and free generators, as indicated by the document body and critical heuristic firings. It contains embedded URLs that redirect to malicious infrastructure, specifically http://netcdn.co/app/431946152/roblox-fight-the-monsters-cheats-game-hack. The presence of embedded URLs and the nature of the lure suggest an attempt to trick users into visiting malicious sites, likely for further exploitation or 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/roblox-fight-the-monsters-cheats-game-hack In PDF document text
    • https://elearning.man1balam.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-today-new_GM406889139.pdfIn PDF document text
    • https://elearning.man1balam.sch.id/__statics/gudangsoal/files/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • https://elearning.man1balam.sch.id/__statics/gudangsoal/files/coin-master-32-hack-apk_GM406889139.pdfIn PDF document text
    • https://elearning.man1balam.sch.id/__statics/gudangsoal/files/free-robux-websites-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.man1balam.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • https://elearning.man1balam.sch.id/__statics/gudangsoal/files/robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • https://elearning.man1balam.sch.id/__statics/gudangsoal/files/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
    • https://elearning.man1balam.sch.id/__statics/gudangsoal/files/free-robux-real-glitch_GM431946152.pdfIn PDF document text
    • https://elearning.man1balam.sch.id/__statics/gudangsoal/files/roblox-november-2021-easy-hacks_GM431946152.pdfIn PDF document text
    • https://elearning.man1balam.sch.id/__statics/gudangsoal/files/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • https://elearning.man1balam.sch.id/__statics/gudangsoal/files/coin-and-spin_GM406889139.pdfIn PDF document text
    • https://elearning.man1balam.sch.id/__statics/gudangsoal/files/how-to-get-tiktok-free-fans_GM835599320.pdfIn PDF document text
    • https://elearning.man1balam.sch.id/__statics/gudangsoal/files/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.man1balam.sch.id/__statics/gudangsoal/files/how-to-get-traded-pokemon-to-evolve-without-trading_GM1094591345.pdfIn PDF document text
    • https://elearning.man1balam.sch.id/__statics/gudangsoal/files/pokemon-go-free-spoofer_GM1094591345.pdfIn PDF document text
    • https://elearning.man1balam.sch.id/__statics/gudangsoal/files/free-roblox-gift-cards-that-can-be-used-unlimited-times_GM431946152.pdfIn PDF document text
    • https://elearning.man1balam.sch.id/__statics/gudangsoal/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://elearning.man1balam.sch.id/__statics/gudangsoal/files/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • https://elearning.man1balam.sch.id/__statics/gudangsoal/files/free-robux-2021-pc_GM431946152.pdfIn PDF document text
    • https://elearning.man1balam.sch.id/__statics/gudangsoal/files/free-auto-clicker-download-tutorial-roblox-bee-swarm-simulator_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_off00003253.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3253 22464 bytes
SHA-256: da11ce0f238fe0ea42ca18590b699cedaa67307c8f674cfa68647b10cf1a924a
font_01_sfnt_off0000644a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x644A 19236 bytes
SHA-256: 3c2be3f4a840a426ac3872c5db701d0ed803dd5dfbb7dd5f1afd4fe1679f417e

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