Malicious PDF — malware analysis report

Static analysis result for SHA-256 73992d71b3e53bf9…

MALICIOUS

PDF

33.8 KB Created: 2021-06-22 07:49:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b225135048e2b9279d0fc0bf020e2be8 SHA-1: 73b5fdda1a1301195b51fa030a062dd1a019894f SHA-256: 73992d71b3e53bf9081d02c01b84fb5e7a0558ddc1a975e5c324f1c77805f231
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to websites offering game hacks and cheats, such as 'how-to-noclip-2021-roblox-cheat-engine-game-hack'. These links are flagged as malicious redirectors, indicating a likely attempt to lead the user to a malicious site for further exploitation or phishing. The document body and heuristics confirm the lure is related to game cheats and generators.

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-noclip-2021-roblox-cheat-engine-game-hack In PDF document text
    • http://pia2000.net/images/free-gold-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • http://pia2000.net/images/free-roblox-svg_GM431946152.pdfIn PDF document text
    • http://pia2000.net/images/david-hacker-roblox_GM431946152.pdfIn PDF document text
    • http://pia2000.net/images/how-to-get-on-a-roblox-game-for-free_GM431946152.pdfIn PDF document text
    • http://pia2000.net/images/inappropriate-roblox-games-2021_GM431946152.pdfIn PDF document text
    • http://pia2000.net/images/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://pia2000.net/images/how-to-get-girl-hair-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://pia2000.net/images/free-roblox-accounts-with-robux-2021-may_GM431946152.pdfIn PDF document text
    • http://pia2000.net/images/what-is-coin-master_GM406889139.pdfIn PDF document text
    • http://pia2000.net/images/hack-bloxtube-dinero-infinito-roblox_GM431946152.pdfIn PDF document text
    • http://pia2000.net/images/lots-of-robux_GM431946152.pdfIn PDF document text
    • http://pia2000.net/images/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://pia2000.net/images/how-to-hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://pia2000.net/images/robloxcom-free-skin_GM431946152.pdfIn PDF document text
    • http://pia2000.net/images/dansploit-roblox-free_GM431946152.pdfIn PDF document text
    • http://pia2000.net/images/pokemon-go-free-coins-no-verification_GM1094591345.pdfIn PDF document text
    • http://pia2000.net/images/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • http://pia2000.net/images/no-scam-free-robux_GM431946152.pdfIn PDF document text
    • http://pia2000.net/images/erreur-277-roblox-free_GM431946152.pdfIn PDF document text
    • http://pia2000.net/images/joedaddy-how-to-get-free-robux_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_off00002d06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D06 21820 bytes
SHA-256: dc09af72f72b57b0521e61be73d772222fa88cdfa535d636bf5134c7614c3b05
font_01_sfnt_off00005d36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D36 19616 bytes
SHA-256: 6c2f36cb2286852e01a552064efa5da657333a4b8bd34a657d93682a0a74c994

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