Malicious PDF — malware analysis report

Static analysis result for SHA-256 48c8dad6b42ab215…

MALICIOUS

PDF

43.9 KB Created: 2021-05-16 16:59:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bff241ab103aa53522c53406c1c1eeb4 SHA-1: 79b2a5c5de30ddad9c4c41efb690299494d2b469 SHA-256: 48c8dad6b42ab21551209bf14929bfefd83a5c598c18262e5e240d06b96f2531
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, disguised as "game hacks" and "free generators". The primary malicious link directs users to a site offering cheats for Roblox. While no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest an attempt to redirect users to a malicious site, likely for further exploitation or phishing. The document's content and heuristic firings indicate a lure-based attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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 https://netcdn.xyz/app/431946152/cheat-in-roblox-rocitizens-money-game-hack In PDF document text
    • https://elearning.mtsalmanar.com/__statics/gudangsoal/files/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://elearning.mtsalmanar.com/__statics/gudangsoal/files/how-do-you-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalmanar.com/__statics/gudangsoal/files/coin-master-hack-without-downloading-apps_GM406889139.pdfIn PDF document text
    • https://elearning.mtsalmanar.com/__statics/gudangsoal/files/free-minecraft-wallpaper_GM479516143.pdfIn PDF document text
    • https://elearning.mtsalmanar.com/__statics/gudangsoal/files/free-robux-place_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalmanar.com/__statics/gudangsoal/files/free-robux-master_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalmanar.com/__statics/gudangsoal/files/coin-master-spin-link-today-free_GM406889139.pdfIn PDF document text
    • https://elearning.mtsalmanar.com/__statics/gudangsoal/files/minecraft-hack-client-download_GM479516143.pdfIn PDF document text
    • https://elearning.mtsalmanar.com/__statics/gudangsoal/files/how-to-change-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalmanar.com/__statics/gudangsoal/files/free-robux-groups-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalmanar.com/__statics/gudangsoal/files/free-robux-redeem-codes-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalmanar.com/__statics/gudangsoal/files/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalmanar.com/__statics/gudangsoal/files/coin-master-free-spins-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • https://elearning.mtsalmanar.com/__statics/gudangsoal/files/minecraft-pe-017-0-apk-free-download-android_GM479516143.pdfIn PDF document text
    • https://elearning.mtsalmanar.com/__statics/gudangsoal/files/free-roblox-clothes-and-hair_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalmanar.com/__statics/gudangsoal/files/how-do-you-get-free-food-on-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsalmanar.com/__statics/gudangsoal/files/free-robux-stream_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalmanar.com/__statics/gudangsoal/files/roblox-studio-free_GM431946152.pdfIn PDF document text
    • https://elearning.mtsalmanar.com/__statics/gudangsoal/files/appsmob-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://elearning.mtsalmanar.com/__statics/gudangsoal/files/minecraft-reach-hack_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
stream_003_off00004db3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4DB3 25516 bytes
SHA-256: 5987a5f62d59f6607a309da8903b6f946a45747d8d772652c6c1598048d2e3ab
font_01_sfnt_off000087b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87B4 18860 bytes
SHA-256: 781671a9301eee72452a86c455abaad7044dfea7ca26319ec650dc6fcef1b568

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