Malicious PDF — malware analysis report

Static analysis result for SHA-256 626c17307a842f50…

MALICIOUS

PDF

34.6 KB Created: 2021-07-04 07:46:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d0d5d2ed343a5a3fedb9286c266b1a7c SHA-1: 1b366a6a2a961f4f2c95e6a17f97d975de9ae279 SHA-256: 626c17307a842f50795c9620ec387e674acce53d3184521c6b8e53f069f62dba
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game currency and hacks to entice users into clicking malicious links. The primary link, http://netcdn.tw/app/431946152/how-to-get-free-robux-no-human-verification-game-hack, is identified as a malicious redirector. The document's structure and embedded URLs suggest it is part of a phishing campaign designed to lead users to potentially harmful websites.

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.tw/app/431946152/how-to-get-free-robux-no-human-verification-game-hack In PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-roblox-acount-genrator_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-bandit-simulator-codes-new-hacker-update_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/whats-the-best-aimbot-hack-for-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-free-gift-cards-for-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-free-robux-no-hack-no-inspect_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-star-codes-for-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/toolbox-for-minecraft-ios_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-robux-on-ipad-for-free_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/corn-master_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/robux-for-free-not-fake-bt-scammer-kid2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/all-of-the-free-wings-on-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/oli-zigzag-roblox-free_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-studio-mac-download-free_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-throw-walls-in-roblox-ith-cheat_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-spin-hack-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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_off00003102.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3102 21740 bytes
SHA-256: e51362325484da9d6003e8b77ec7b90584d15053284f4407a88dfb7b944e46e7
font_01_sfnt_off000060d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60D0 19496 bytes
SHA-256: 1b5d617a8bdf7849f857e8bf3a00ea7a9d2795cdb388484b070bb3e34f65ceb1

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