Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcd44adfa7062341…

MALICIOUS

PDF

41.7 KB Created: 2021-05-14 18:52:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: cff35252d770b65f0f53f6f3d6177af2 SHA-1: d4ef7d264f92dfb3906df82bcd3f077945dab797 SHA-256: fcd44adfa70623417c05d8ef5c5b7578697eaf7e107ea8814a8f50eeb4f5353d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, specifically promoting 'game hacks' and 'generators'. The document body, though heavily obfuscated, contains references to these lures and the malicious URL. The presence of these links strongly suggests a phishing or social engineering attack aimed at tricking users into visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/406889139/play-coin-master-game-hack In PDF document text
    • http://laboraltoledo.com/images/roblox-18_GM431946152.pdfIn PDF document text
    • http://laboraltoledo.com/images/roblox-apocalypse-rising-hack_GM431946152.pdfIn PDF document text
    • http://laboraltoledo.com/images/free-printable-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • http://laboraltoledo.com/images/coin-master-apk-mod-hack-download_GM406889139.pdfIn PDF document text
    • http://laboraltoledo.com/images/coin-master-hack-tool-access-online-generator_GM406889139.pdfIn PDF document text
    • http://laboraltoledo.com/images/how-to-hack-coin-master-using-es-file_GM406889139.pdfIn PDF document text
    • http://laboraltoledo.com/images/hack-mod-coin-master_GM406889139.pdfIn PDF document text
    • http://laboraltoledo.com/images/free-robux-com-2021_GM431946152.pdfIn PDF document text
    • http://laboraltoledo.com/images/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://laboraltoledo.com/images/free-robux-no-email_GM431946152.pdfIn PDF document text
    • http://laboraltoledo.com/images/coin-master-hack-to-get-free-spins_GM406889139.pdfIn PDF document text
    • http://laboraltoledo.com/images/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • http://laboraltoledo.com/images/coin-master-free-spins-link-blogspot-today_GM406889139.pdfIn PDF document text
    • http://laboraltoledo.com/images/free-coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://laboraltoledo.com/images/how-to-robux_GM431946152.pdfIn PDF document text
    • http://laboraltoledo.com/images/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • http://laboraltoledo.com/images/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • http://laboraltoledo.com/images/minecraft-pe-texture-packs-free-download_GM479516143.pdfIn PDF document text
    • http://laboraltoledo.com/images/hack-my-game-xyz-coin-master_GM406889139.pdfIn PDF document text
    • http://laboraltoledo.com/images/roblox-avatar-maker-free_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
stream_003_off000048e7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48E7 24684 bytes
SHA-256: a15b25ef9a642a42c9851c2d0edc861fd89b25c2be060d66a8336f1b712af4a2
font_01_sfnt_off00008192.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8192 17956 bytes
SHA-256: 3643e479f0c37cbf16fafc1a8fc3121dcb1ff233e4f2886a877cfbec5145750a

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