Malicious PDF — malware analysis report

Static analysis result for SHA-256 abad5b0748a378a0…

MALICIOUS

PDF

36.1 KB Created: 2021-06-18 05:54:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 617524141d205903063e960f1b23cf7e SHA-1: 183202687ce867ebb7e8d5ac235ae734cebfaecc SHA-256: abad5b0748a378a0f7997e47d24679f6981c341489d4eb6662f4a90b47f3a906
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains embedded links and text that lure users with promises of free game items and hacks, specifically targeting Roblox players. The primary link, http://netcdn.co/app/431946152/how-to-get-free-stuff-on-roblox-catalog-2021-game-hack, is identified as a redirector for a 'free generator / game hack' lure. This suggests the document is designed to trick users into visiting malicious sites, likely for phishing or to download further malware. No scripts were extracted, but the PDF structure and embedded URLs strongly indicate a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/how-to-get-free-stuff-on-roblox-catalog-2021-game-hack PDF link annotation
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/free-robux-no-inspect-no-info_GM431946152.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/try-minecraft-free_GM479516143.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/free-robux-quiz_GM431946152.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/i-can-hack-u-robux_GM431946152.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/how-to-get-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/roblox-swordburst-online-level-hack_GM431946152.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/cheat-engine-roblox-no-cooldown_GM431946152.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/roblox-free-game-card-25_GM431946152.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/how-to-join-free-buldiers-club-roblox_GM431946152.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/noob-vs-pro-vs-hacker-vs-god-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/roblox-hack-script-admin_GM431946152.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/how-to-cheat-roblox-tycoons_GM431946152.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/free-hair-advance-roblox_GM431946152.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/how-to-change-your-roblox-username-for-free-on-ipad_GM431946152.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/robux-hack-no-survey-no-download-no-password_GM431946152.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • https://taxandmore.nl/wp-content/uploads/fsqm-files/robux-hack-2021-no-download_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
font_00_sfnt_off0000337d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x337D 22900 bytes
SHA-256: 0aaa445bb8da1c83102c4aede1ece38043e7ef7035110b2c183b1961de282514
font_01_sfnt_off00006726.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6726 19272 bytes
SHA-256: 5087c5e1306a915354a7cbce8818257d21b595cfbfa299b99cdd84f1b1ac5ffb

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