Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cc4ecea3e881a1e…

MALICIOUS

PDF

44.8 KB Created: 2021-05-15 10:04:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 86e9b8dc5de3659a10641da2df20d38c SHA-1: 6bdb92bf7467980b3e214275dc440dab4e7fe844 SHA-256: 3cc4ecea3e881a1ea12eb8604dee6a1298429ab8a5ae94b258c88d4ca99d443f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one pointing to `https://netcdn.xyz/app/406889139/coin-master-free-spins-and-cards-game-hack`, which is flagged as a malicious redirector. The document body and embedded links suggest a lure for game-related cheats or hacks, a common social engineering tactic. While no scripts were explicitly extracted, the presence of embedded URLs and the malicious redirector strongly indicate an attempt to lead the user to a malicious site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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/coin-master-free-spins-and-cards-game-hack In PDF document text
    • http://newdirectionsforautism.org/images/coin-master-hack-no-survey-or-verification_GM406889139.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/toolbox-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/what-is-a-robux_GM431946152.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/free-coins-coin-master-blog_GM406889139.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/coin-master-tool-hack_GM406889139.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/roblox-pics_GM431946152.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/coin-master-free-2021-spin-link-today_GM406889139.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/free-shields-coin-master_GM406889139.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/how-to-get-free-golden-card-in-coin-master_GM406889139.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/coin-master-hack-without-human-verification_GM406889139.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/hack-coin-master-xyz_GM406889139.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/free-online-games-like-minecraft_GM479516143.pdfIn PDF document text
    • http://newdirectionsforautism.org/images/minecraft-free-computer-game_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000046d6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x46D6 24928 bytes
SHA-256: 1c8f6944277440f0f399c99b1efd98152b97d94d41fc6ae108ed38e6c5c1a0d2
font_01_sfnt_off00008080.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8080 3560 bytes
SHA-256: c953d730e49f69c7d62e02a926729ae4a31de13d9a976dc4a95b39cf47066c93
font_02_sfnt_off00008d06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D06 18060 bytes
SHA-256: 7f8980b6f3213b204c7b050e62c653166806b65682437d624869b2fc7a4cb6a7

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