Malicious PDF — malware analysis report

Static analysis result for SHA-256 61f98d4aa5e7e47f…

MALICIOUS

PDF

53.4 KB Created: 2021-05-17 15:31:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e3c95d3a8eb1638e79d459405811204d SHA-1: 877adf96975f0ee81cf22ebcc788c1a219f00d75 SHA-256: 61f98d4aa5e7e47f5c3f08e4a9e72f604f24f91e7246791e1c5197b03344b5ce
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating malicious redirector links, specifically targeting users with lures related to game hacks and generators. The primary malicious URL identified is https://netcdn.xyz/app/479516143/chisel-and-bits-mod-minecraft-pe-game-hack, which is part of a chain of redirectors. The document body, though heavily obfuscated, contains references to similar lures and the authoring application suggests it was generated programmatically.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9017

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/479516143/chisel-and-bits-mod-minecraft-pe-game-hack In PDF document text
    • http://dobrovodie.ru/images/free-spin-coin-master-hacktoman_GM406889139.pdfIn PDF document text
    • http://dobrovodie.ru/images/wurst-hacked-client_GM479516143.pdfIn PDF document text
    • http://dobrovodie.ru/images/coin-master-reward-link_GM406889139.pdfIn PDF document text
    • http://dobrovodie.ru/images/legitimate-coin-master-free-spins-apk_GM406889139.pdfIn PDF document text
    • http://dobrovodie.ru/images/bloxpink-free-robux_GM431946152.pdfIn PDF document text
    • http://dobrovodie.ru/images/boost9-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://dobrovodie.ru/images/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://dobrovodie.ru/images/free-minecraft-premium-account_GM479516143.pdfIn PDF document text
    • http://dobrovodie.ru/images/coin-master-app-hacks_GM406889139.pdfIn PDF document text
    • http://dobrovodie.ru/images/scary-larry-roblox_GM431946152.pdfIn PDF document text
    • http://dobrovodie.ru/images/free-daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://dobrovodie.ru/images/hack-coin-master-app_GM406889139.pdfIn PDF document text
    • http://dobrovodie.ru/images/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • http://dobrovodie.ru/images/robux-adder_GM431946152.pdfIn PDF document text
    • http://dobrovodie.ru/images/facebook-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://dobrovodie.ru/images/how-to-get-free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://dobrovodie.ru/images/minecraft-book-collection_GM479516143.pdfIn PDF document text
    • http://dobrovodie.ru/images/play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://dobrovodie.ru/images/make-free-robux_GM431946152.pdfIn PDF document text
    • http://dobrovodie.ru/images/free-robux-co_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a45.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A45 26904 bytes
SHA-256: 8a73952e3bbe8d891637f17a3fe8b02e5674f309a4506109ae285c7f8b268ff9
font_01_sfnt_off000085b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85B3 8156 bytes
SHA-256: 55f6013fe5a4d718adad53361a953386cca136b467454c5848cc6513afb510bf
font_02_sfnt_off00009f75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F75 4232 bytes
SHA-256: ab6320ab342704d2c5943abfba82ed4837bf2da871c91621741fd4cfd15c6ed5
font_03_sfnt_off0000ae02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE02 18492 bytes
SHA-256: 61a31027f058db0827ef217670a8e1f5e2a0522dc8390d68666358c3512875fc

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