Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb3190f34426c8cd…

MALICIOUS

PDF

44.3 KB Created: 2021-05-17 08:00:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 08cc6235a9a742457c3d9f214d363182 SHA-1: fbcf89c4e7f5d1be5169bbe090c3bb52a032adf2 SHA-256: fb3190f34426c8cd33806c27ad9211350211c266ade957288f9221b53dd0010b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, disguised as game hacks and generators. The heuristic firings indicate that the document is designed to lure users into clicking these links, likely leading to further malicious downloads or exploits. Although no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lures strongly suggest a malicious intent to redirect users to potentially harmful content.

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-dungeons-free-download-pc-game-hack In PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-hack-pc-free_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/minecraft-free-download-android_GM479516143.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-apk-mod-hack-download_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/roblox-toy-codes-free_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/free-roblox-scripts_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/roblox-phantom-forces-hack_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/roblox-booga-booga-hack_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/minecraft-launcher-download-free_GM479516143.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/como-sacar-buen-puntaje-en-juego-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-to-play-minecraft-with-friends-for-free_GM479516143.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/password-free-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-free-spins-link-june-2021_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/how-to-earn-robux-fast_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/roblox-builders-club-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
font_00_sfnt_off00004a88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A88 27912 bytes
SHA-256: d1f68ce29e33a82c44b51f9c01a367f90ca137aa7bd5336f83918d22b390e9f8
font_01_sfnt_off0000893a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x893A 18872 bytes
SHA-256: 05183faf73e067548e32258fc58809d25a8fef905510eff8eab59b37bb03aee7

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