Malicious PDF — malware analysis report

Static analysis result for SHA-256 d65bc235243ad081…

MALICIOUS

PDF

34.3 KB Created: 2021-07-06 06:54:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 284fa0d71aaeb2f4d9f4d971d54dde90 SHA-1: 5cd60f9a8bb000e1fd912a48c2453221c58bd865 SHA-256: d65bc235243ad081fb73f70f04234e2b4de9032b6c3538ee05b6651467063067
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks and generators. The primary lure appears to be related to Minecraft and Roblox, aiming to trick users into clicking through to potentially harmful sites. No scripts were extracted, but the embedded URLs and heuristic firings strongly indicate a phishing or redirection campaign.

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.tw/app/479516143/good-free-minecraft-server-hosting-game-hack In PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/free-roblox-paddwords-cracker_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/coin-master-gold-cards-hack_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/coin-master-hack-free-spins_GM406889139.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/how-to-get-1-million-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/roblox-dashing-simulator-hack-script-2021_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/roblox-free-hats-list_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/codes-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/my-minecraft-account-was-hacked_GM479516143.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/roblox-free-body_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/how-to-get-free-faces-on-roblox-october-2021_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/roblox-guest-t-shirt-free_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/roblox-how-to-be-copletely-white-free_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/how-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/get-robux-today_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/copy-and-paste-for-free-roblox-clothes_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/generate-robux-for-free-with-no-downloading-games_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmbpj.com/opac/repository/free-robux-easy-robux-today_GM431946152.pdfIn PDF document text
    • http://pspmrsmbpj.com/opac/repository/free-robux-scams_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_off00003105.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3105 22760 bytes
SHA-256: 20d5a81118e7c44fdc3f963ac09d1bceb7f7889ab420c2695eeb574cffc09c24
font_01_sfnt_off0000636f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x636F 18284 bytes
SHA-256: 7289302ae6250539789b9217bcc68894f0328a970bf5d67cc3f1b282cc8d95f9

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