Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2c1908815d7d87f…

MALICIOUS

PDF

39.7 KB Created: 2021-05-21 13:13:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 5d6672a7990a58cfca5e15f9d92b4937 SHA-1: ad5a16f87c535cad79ae71c4018802cd6a8bc57c SHA-256: a2c1908815d7d87f3c0e9a6349b238208e9387ee6e4e1ef5a97c64f2bd7d933d
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 0.8068

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-hack-roblox-accounts-2021-game-hack PDF link annotation
    • http://wokbaarlo.nl/images/google-moon-active_GM406889139.pdfIn PDF document text
    • http://wokbaarlo.nl/images/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://wokbaarlo.nl/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://wokbaarlo.nl/images/hackear-juego-coin-master-espaol_GM406889139.pdfIn PDF document text
    • http://wokbaarlo.nl/images/minecraft-112-hacked-client_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000035d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35D2 24536 bytes
SHA-256: 88d01c274f5ee829174b2e5ba18f52863d48e4003b785b6059ae189baaadf7e8
font_01_sfnt_off00006d6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D6F 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off0000771e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x771E 18992 bytes
SHA-256: 91904dcb98687fcf58c7b52e545a9fbf658b3e4d1998331468638ebaf1d03505

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