Malicious PDF — malware analysis report

Static analysis result for SHA-256 23dd2526911d10fd…

MALICIOUS

PDF

34.4 KB Created: 2021-06-26 01:33:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: b460b8451d67ae2356ed12bb2bef3548 SHA-1: 6abd928ed871ed7ae401dfb49e7a05b4de1675b1 SHA-256: 23dd2526911d10fdcb94e9f5236151079caff58143488232c0801dd2a2650815
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and free currency to trick users into clicking embedded links. The primary link redirects to known malicious infrastructure, indicating a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a malicious intent to redirect users to potentially harmful sites, likely for credential harvesting or malware distribution.

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 http://netcdn.co/app/431946152/free-robux-for-no-money-game-hack In PDF document text
    • http://daskrimti-jabar.web.id/library/repository/minecraft-java-edition-key-free_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/websites-for-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/minecraft-hack-download_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-to-get-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-coin-master-spins-blogger_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-robux-codes-december-2021_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/free-spin-coin_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/roblox-lego-hacking-script_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/soda-crush-roblox-cheats_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/i-cant-get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/roblox-free-pets_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/june-29-coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-robux-generator-club_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-robux-quiz_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/coin-master-2021-free-spins_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/cheats-coin-master-free_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/coin-master-hack-blog_GM406889139.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
font_00_sfnt_off00002e03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E03 22848 bytes
SHA-256: 3ed460b6bd3f79a9376ac9fa2fc519844e8ccea44b2656e0827eb18883ed61ea
font_01_sfnt_off00006154.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6154 19092 bytes
SHA-256: b4d6b86f6b35cf180a9a5b8ea4026442297e78af27a422a94688e7e519f2b4aa

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