Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f6d2900138bf7ba…

MALICIOUS

PDF

45.7 KB Created: 2021-05-14 19:16:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 89b0641e3a24886b0d77954613f44a85 SHA-1: 36bf752d9c85c0deed930bfce8b6a47d0f4082c6 SHA-256: 6f6d2900138bf7ba47ae2050d11af4f09afad814b5027584da3a3a5dc0832303
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, disguised as "free generator" or "game hack" lures. The primary malicious URL identified is https://netcdn.xyz/app/431946152/free-roblox-clothes-for-your-avatar-game-hack. The document body and embedded URLs suggest a social engineering tactic to trick users into visiting these sites, likely to download further malware or engage in scams. No scripts were extracted, but the PDF structure and embedded URLs strongly indicate malicious intent.

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/431946152/free-roblox-clothes-for-your-avatar-game-hack In PDF document text
    • http://musestravel.com/images/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://musestravel.com/images/coin-master-free-redeem-code_GM406889139.pdfIn PDF document text
    • http://musestravel.com/images/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • http://musestravel.com/images/is-minecraft-free-on-ps4_GM479516143.pdfIn PDF document text
    • http://musestravel.com/images/coin-master-free-spins-2021-generator_GM406889139.pdfIn PDF document text
    • http://musestravel.com/images/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://musestravel.com/images/coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://musestravel.com/images/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://musestravel.com/images/how-to-get-free-robux-easy-on-phone_GM431946152.pdfIn PDF document text
    • http://musestravel.com/images/roblox-arsenal-hacks-download_GM431946152.pdfIn PDF document text
    • http://musestravel.com/images/coin-master-free-spins-link-today-hack_GM406889139.pdfIn PDF document text
    • http://musestravel.com/images/coin-master-free-spin-and-coin-link-app_GM406889139.pdfIn PDF document text
    • http://musestravel.com/images/coin-master-hack-apk-2021-ios_GM406889139.pdfIn PDF document text
    • http://musestravel.com/images/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://musestravel.com/images/how-to-get-roblox-premium-for-free-2021_GM431946152.pdfIn PDF document text
    • http://musestravel.com/images/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://musestravel.com/images/what-games-on-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://musestravel.com/images/free-roblox-followers-generator_GM431946152.pdfIn PDF document text
    • http://musestravel.com/images/op-rewards-robux_GM431946152.pdfIn PDF document text
    • http://musestravel.com/images/minecraft-pe-hack-client-ios_GM479516143.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
font_00_sfnt_off00004bd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BD6 27724 bytes
SHA-256: 19dfaeccca7cfa04ce278b8c09f9717523d76b56afff4853cce3c0314f1418d5
font_01_sfnt_off00008ed1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8ED1 18860 bytes
SHA-256: 1761c8fbdaafa52a42c2d9c8dd0fbea25e5bec314d4deea8139da4bd569234ce

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