Malicious PDF — malware analysis report

Static analysis result for SHA-256 282fc599cde5af0f…

MALICIOUS

PDF

45.8 KB Created: 2021-05-20 01:09:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 4514b25eb6248fe8b7fdf7da7ed23f37 SHA-1: 9125946354a13ffbc3d80d16bf10fa99321bfc59 SHA-256: 282fc599cde5af0f7955525f8daf9a20ce5d13567db82f9c213a5516c163af87
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 0.9432

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.xyz/app/431946152/how-to-get-free-robux-easy-2021-game-hack PDF link annotation
    • http://sauer-umweltservice.de/images/wurst-hacks_GM479516143.pdfIn PDF document text
    • http://sauer-umweltservice.de/images/demon-roblox_GM431946152.pdfIn PDF document text
    • http://sauer-umweltservice.de/images/daily-free-spins_GM406889139.pdfIn PDF document text
    • http://sauer-umweltservice.de/images/i-cant-get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://sauer-umweltservice.de/images/coin-master-links-for-today_GM406889139.pdfIn PDF document text
    • http://sauer-umweltservice.de/images/robux-free-co_GM431946152.pdfIn PDF document text
    • http://sauer-umweltservice.de/images/get-free-spins-on-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • http://sauer-umweltservice.de/images/free-minecraft-coins_GM479516143.pdfIn PDF document text
    • http://sauer-umweltservice.de/images/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • http://sauer-umweltservice.de/images/free-cracked-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://sauer-umweltservice.de/images/free-game-packs-for-coin-master_GM406889139.pdfIn PDF document text
    • http://sauer-umweltservice.de/images/robux-without-verification_GM431946152.pdfIn PDF document text
    • http://sauer-umweltservice.de/images/free-roblox-clothes-girl_GM431946152.pdfIn PDF document text
    • http://sauer-umweltservice.de/images/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://sauer-umweltservice.de/images/minecraft-free-app_GM479516143.pdfIn PDF document text
    • http://sauer-umweltservice.de/images/coin-master-free-spins--spins_GM406889139.pdfIn PDF document text
    • http://sauer-umweltservice.de/images/minecraft-free-ios_GM479516143.pdfIn PDF document text
    • http://sauer-umweltservice.de/images/how-to-get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://sauer-umweltservice.de/images/minecraft-free-android_GM479516143.pdfIn PDF document text
    • http://sauer-umweltservice.de/images/coin-master-coins-hack_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004996.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4996 26076 bytes
SHA-256: 5768f468a53c0bda2ae621877e0e5f3c51d1a3bdfff2c03d08441f7457f394ae
font_01_sfnt_off0000842e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x842E 2832 bytes
SHA-256: 77ae1c4cffa647a8fd533dfa4102e94364989f9e80b9cd131876e9d1005899a2
font_02_sfnt_off00008dde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DDE 19092 bytes
SHA-256: b4f5bd8c8985fe06cb8cafea7c6a35db41ab3230d9b691422e9309a9df735677

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