Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa3d6a3e54e6b6ff…

MALICIOUS

PDF

35.5 KB Created: 2021-06-28 10:00:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1624c49d20fe5317fb098154f37de192 SHA-1: 50c0b12262a2ffc9506c8e887e7f14b1ae83ae07 SHA-256: fa3d6a3e54e6b6ff5cbeaf6bb62c9576a0c21cda973d7cdd8c5b7bc9a535c6f1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of game hacks and free currency to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which likely serves as a gateway to further malicious content or downloads. No scripts were extracted, but the document's structure and embedded URLs strongly indicate a phishing or malware distribution attempt.

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/how-to-get-btool-and-hack-roblox-jailbreak-2021-february-game-hack In PDF document text
    • http://mtsn31jkt.com/__statics/gudangsoal/files/free-minecraft-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • https://mtsn31jkt.com/__statics/gudangsoal/files/ways-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://mtsn31jkt.com/__statics/gudangsoal/files/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://mtsn31jkt.com/__statics/gudangsoal/files/how-to-get-free-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • https://mtsn31jkt.com/__statics/gudangsoal/files/free-roblox-followers-generator_GM431946152.pdfIn PDF document text
    • http://mtsn31jkt.com/__statics/gudangsoal/files/free-robux-real_GM431946152.pdfIn PDF document text
    • https://mtsn31jkt.com/__statics/gudangsoal/files/roblox-boga-boga-god-armor-and-god-rock-hack_GM431946152.pdfIn PDF document text
    • https://mtsn31jkt.com/__statics/gudangsoal/files/free-ka-tik-tok_GM835599320.pdfIn PDF document text
    • https://mtsn31jkt.com/__statics/gudangsoal/files/free-robux-com-no-human-verification_GM431946152.pdfIn PDF document text
    • http://mtsn31jkt.com/__statics/gudangsoal/files/get-free-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • http://mtsn31jkt.com/__statics/gudangsoal/files/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://mtsn31jkt.com/__statics/gudangsoal/files/coin-master-free-spins-hack-ios_GM406889139.pdfIn PDF document text
    • https://mtsn31jkt.com/__statics/gudangsoal/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://mtsn31jkt.com/__statics/gudangsoal/files/archery-master-3d-hack-unlimited-coins-cheats_GM406889139.pdfIn PDF document text
    • http://mtsn31jkt.com/__statics/gudangsoal/files/how-to-get-minecraft-coins-for-free_GM479516143.pdfIn PDF document text
    • https://mtsn31jkt.com/__statics/gudangsoal/files/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • http://mtsn31jkt.com/__statics/gudangsoal/files/money-in-pokemon-go-free_GM1094591345.pdfIn PDF document text
    • http://mtsn31jkt.com/__statics/gudangsoal/files/mcpe-hack-client_GM479516143.pdfIn PDF document text
    • http://mtsn31jkt.com/__statics/gudangsoal/files/free-tiktok-followers-without-verification_GM835599320.pdfIn PDF document text
    • https://mtsn31jkt.com/__statics/gudangsoal/files/coin-master-free-spins-link-today-twitter_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_off00003060.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3060 22264 bytes
SHA-256: 93320468b8241a60838f062608a2e70279eee92c511eb12f0b7c3a2121e1c94e
font_01_sfnt_off000061d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61D0 20268 bytes
SHA-256: 3538642677804f8a739f8190981270a82cef135a088c3ca12de18607de3ef8b1

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