Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ac747353c424463…

MALICIOUS

PDF

47.7 KB Created: 2021-06-02 12:26:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8cab235537ccdc1c2ef2b2dec5fab037 SHA-1: 2ac469911cd20f3acdf22b608e22bce6e1131cdb SHA-256: 8ac747353c424463f0b1aa358ec2799d6c7b40415bdfec482c0b9493bd0df7c9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to known malicious infrastructure, specifically promoting 'free generator / game hack' lures. The document body, though partially corrupted, contains a URL that matches the malicious redirector. This suggests the primary purpose is to trick users into visiting malicious sites, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

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/431946152/how-to-get-actual-free-robux-game-hack In PDF document text
    • http://kita-sunshine.de/images/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://kita-sunshine.de/images/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://kita-sunshine.de/images/roblox-character-free_GM431946152.pdfIn PDF document text
    • http://kita-sunshine.de/images/coin-master-free-spins-reddit_GM406889139.pdfIn PDF document text
    • http://kita-sunshine.de/images/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • http://kita-sunshine.de/images/minecraft-classic-free_GM479516143.pdfIn PDF document text
    • http://kita-sunshine.de/images/minecraft-hacked-client-18_GM479516143.pdfIn PDF document text
    • http://kita-sunshine.de/images/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://kita-sunshine.de/images/how-to-get-free-spins-on-coin-master-without-verification_GM406889139.pdfIn PDF document text
    • http://kita-sunshine.de/images/robux-get-com_GM431946152.pdfIn PDF document text
    • http://kita-sunshine.de/images/play-minecraft-online-free_GM479516143.pdfIn PDF document text
    • http://kita-sunshine.de/images/coin-master-links-for-today_GM406889139.pdfIn PDF document text
    • http://kita-sunshine.de/images/free-spin-generator-for-coin-master_GM406889139.pdfIn PDF document text
    • http://kita-sunshine.de/images/how-to-get-free-robux-website_GM431946152.pdfIn PDF document text
    • http://kita-sunshine.de/images/coin-master-mod_GM406889139.pdfIn PDF document text
    • http://kita-sunshine.de/images/is-windows-10-minecraft-free_GM479516143.pdfIn PDF document text
    • http://kita-sunshine.de/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://kita-sunshine.de/images/minecraft-apk-free-download-016-0_GM479516143.pdfIn PDF document text
    • http://kita-sunshine.de/images/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://kita-sunshine.de/images/tiktok-free-song_GM835599320.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000500d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x500D 26668 bytes
SHA-256: 24d1dccf514b886172d2b240caf0ba5f926306b15f3ff84f18fc73c86c964b6a
font_01_sfnt_off00008d07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D07 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off000096b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96B6 18584 bytes
SHA-256: c130fc81d8503a20dbac8eabbb282e81b8d6b07cb167d8a646d28123399e6026

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