Malicious PDF — malware analysis report

Static analysis result for SHA-256 e68334492d7fe20c…

MALICIOUS

PDF

44.4 KB Created: 2021-05-14 10:37:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 9dc1608b26f8ad78e15190515b243608 SHA-1: 73499ace210bf640898d3fe9d32d17c28a4eb812 SHA-256: e68334492d7fe20cee8841ee3b8a5d59ecf3bd47bb0db3b14ecf214c88839354
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically advertising free game hacks and generators. The primary lure URL is https://netcdn.xyz/app/479516143/minecraft-coins-free-game-hack, which is associated with malicious redirector activity. The document body, though heavily obfuscated, contains references to game-related content, reinforcing the lure. No scripts were extracted, but the presence of multiple malicious links indicates a phishing or scam attempt.

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 https://netcdn.xyz/app/479516143/minecraft-coins-free-game-hack In PDF document text
    • http://www.drent.se/images/roblox-earn-robux_GM431946152.pdfIn PDF document text
    • http://www.drent.se/images/robux-com-free_GM431946152.pdfIn PDF document text
    • http://www.drent.se/images/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • http://www.drent.se/images/mcpe-master-hack-coins_GM406889139.pdfIn PDF document text
    • http://www.drent.se/images/coin-master-hack-apk-july-2021_GM406889139.pdfIn PDF document text
    • http://www.drent.se/images/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://www.drent.se/images/2021-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.drent.se/images/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • http://www.drent.se/images/free-robux-only-username_GM431946152.pdfIn PDF document text
    • http://www.drent.se/images/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • http://www.drent.se/images/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • http://www.drent.se/images/free-roblox-usernames-and-passwords_GM431946152.pdfIn PDF document text
    • http://www.drent.se/images/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://www.drent.se/images/free-robux-mobile_GM431946152.pdfIn PDF document text
    • http://www.drent.se/images/coin-master-spin-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.drent.se/images/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://www.drent.se/images/how-to-get-minecraft-for-free-2021_GM479516143.pdfIn PDF document text
    • http://www.drent.se/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.drent.se/images/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://www.drent.se/images/free-robux-codes-2021_GM431946152.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000482c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x482C 32172 bytes
SHA-256: 602c38bdef4e984894d95bfd02b428df10472f2c1d06cf0194cc9d3dbbfd2a90
font_01_sfnt_off00008d0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D0A 17712 bytes
SHA-256: f11cf7a31a005d7bc14b9508c64b9243aa3fd98d87a18c3c2fdef7c62eb0ce9c

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