Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d09042d029b4f85…

MALICIOUS

PDF

44.5 KB Created: 2021-06-08 22:40:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: b8504c9df105c9b300f5cacb1c969286 SHA-1: 6c317ee4a11402f52d600fc263c8f7cbb84da5af SHA-256: 3d09042d029b4f8573349400fc1cb30c6438889f3f6c5e25fe7abcf30b791682
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.tw/app/431946152/free-emotes-in-roblox-game-hack PDF link annotation
    • http://aks-akk.ac.id/html/perpusakk/repository/roblox-hack-2021-free_GM431946152.pdfIn PDF document text
    • http://aks-akk.ac.id/html/perpusakk/repository/guuudinforoblox-online-hack-for-free-robux-and-builders-club_GM431946152.pdfIn PDF document text
    • http://aks-akk.ac.id/html/perpusakk/repository/invisible-hack-roblox_GM431946152.pdfIn PDF document text
    • http://aks-akk.ac.id/html/perpusakk/repository/hack-de-robloxcom_GM431946152.pdfIn PDF document text
    • http://aks-akk.ac.id/html/perpusakk/repository/free-exploits-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://aks-akk.ac.id/html/perpusakk/repository/roblox-games-that-give-you-free-items_GM431946152.pdfIn PDF document text
    • http://aks-akk.ac.id/html/perpusakk/repository/top3k-roblox-hack_GM431946152.pdfIn PDF document text
    • http://aks-akk.ac.id/html/perpusakk/repository/nopde-engine-64-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://aks-akk.ac.id/html/perpusakk/repository/roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • http://aks-akk.ac.id/html/perpusakk/repository/pastebin-roblox-robux-hack_GM431946152.pdfIn PDF document text
    • http://aks-akk.ac.id/html/perpusakk/repository/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://aks-akk.ac.id/html/perpusakk/repository/roblox-free-robux-generator-no-survey-2021_GM431946152.pdfIn PDF document text
    • http://aks-akk.ac.id/html/perpusakk/repository/how-to-hack-in-to-builder-mans-acount-roblox_GM431946152.pdfIn PDF document text
    • http://aks-akk.ac.id/html/perpusakk/repository/free-roblox-gift-card-2021-live_GM431946152.pdfIn PDF document text
    • http://aks-akk.ac.id/html/perpusakk/repository/free-promo-codes-roblox-2021-robux_GM431946152.pdfIn PDF document text
    • http://aks-akk.ac.id/html/perpusakk/repository/how-to-get-youtube-robux-hack_GM431946152.pdfIn PDF document text
    • http://aks-akk.ac.id/html/perpusakk/repository/hack-free-robux-no-human-notification_GM431946152.pdfIn PDF document text
    • http://aks-akk.ac.id/html/perpusakk/repository/how-to-get-free-tix-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://aks-akk.ac.id/html/perpusakk/repository/roblox-hack-accounts-password-2021_GM431946152.pdfIn PDF document text
    • http://aks-akk.ac.id/html/perpusakk/repository/5-get-unlimited-free-robux_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
stream_004_off0000530b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x530B 24520 bytes
SHA-256: de842e48773a4a75364ac691c635d50ce0b70a234becc34e8984d8ed5932a344
font_01_sfnt_off00008b2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B2A 18312 bytes
SHA-256: dfdbbc20cd6d315f04faf40ba4db5d1d9cda12927e5c46b96113f96ad4ee06ac

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