Malicious PDF — malware analysis report

Static analysis result for SHA-256 667829662c10fa46…

MALICIOUS

PDF

33.7 KB Created: 2021-07-07 09:39:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 869027710a21ca5e732dde1f804bd0f9 SHA-1: 5cde8dc84dac90d3ce939b25507b23c3fff19d68 SHA-256: 667829662c10fa461e97d15a39ffdea44e14e64a999c5286627dcabbd42a260d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

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 0.9980

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.tw/app/431946152/roblox-free-items-game-hack PDF link annotation
    • http://perpus.unik-kediri.ac.id/repository/free-draw-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.unik-kediri.ac.id/repository/how-to-get-free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://perpus.unik-kediri.ac.id/repository/www-coinmaster_GM406889139.pdfIn PDF document text
    • http://perpus.unik-kediri.ac.id/repository/hacks-for-roblox-dead-locked_GM431946152.pdfIn PDF document text
    • http://perpus.unik-kediri.ac.id/repository/free-robux-without-offers_GM431946152.pdfIn PDF document text
    • http://perpus.unik-kediri.ac.id/repository/free-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • http://perpus.unik-kediri.ac.id/repository/is-coin-master-hacks-safe_GM406889139.pdfIn PDF document text
    • http://perpus.unik-kediri.ac.id/repository/8bp-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.unik-kediri.ac.id/repository/coin-master-hack-apk-april-12-2021_GM406889139.pdfIn PDF document text
    • http://perpus.unik-kediri.ac.id/repository/roblox-hack-com_GM431946152.pdfIn PDF document text
    • http://perpus.unik-kediri.ac.id/repository/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.unik-kediri.ac.id/repository/free-robux-accounts_GM431946152.pdfIn PDF document text
    • http://perpus.unik-kediri.ac.id/repository/roblox-hacked-com-2021_GM431946152.pdfIn PDF document text
    • http://perpus.unik-kediri.ac.id/repository/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
    • http://perpus.unik-kediri.ac.id/repository/minecraft-pe-free_GM479516143.pdfIn PDF document text
    • http://perpus.unik-kediri.ac.id/repository/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.unik-kediri.ac.id/repository/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://perpus.unik-kediri.ac.id/repository/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • http://perpus.unik-kediri.ac.id/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://perpus.unik-kediri.ac.id/repository/10-free-spins-coin-master_GM406889139.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_off00002e40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E40 21928 bytes
SHA-256: 34c7f8f1ce37e0a560694d0e02be6dde13132a0009a63b2f7ec177b4de99f07d
font_01_sfnt_off00005ee1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE1 19016 bytes
SHA-256: c20a3ccfd5d3fb630a1125d5ffd2660ec8ecf265c8f5669b913cc8ebfc1d3802

Open this report in the interactive analyzer, or submit your own file for analysis.