Malicious PDF — malware analysis report

Static analysis result for SHA-256 4afbcfc724f86544…

MALICIOUS

PDF

32.7 KB Created: 2021-07-19 06:54:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 355e7cfaf80835c2fc06f3e7dedb3274 SHA-1: 9cf798fac66c7a2ee45c41681c6e271c5ae2cf44 SHA-256: 4afbcfc724f865443a93fb8a40f54f48dbc8e4dd10685a8ea252ae54efe4ebbf
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 0.9900

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/479516143/free-minecraft-alts-game-hack PDF link annotation
    • http://parafia-nspj-lebork.pl/images/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
    • http://parafia-nspj-lebork.pl/images/free-tiktok-followers-instantly_GM835599320.pdfIn PDF document text
    • http://parafia-nspj-lebork.pl/images/how-to-get-followers-on-tiktok-for-free_GM835599320.pdfIn PDF document text
    • http://parafia-nspj-lebork.pl/images/free-tiktok-like_GM835599320.pdfIn PDF document text
    • http://parafia-nspj-lebork.pl/images/robux-free-co_GM431946152.pdfIn PDF document text
    • http://parafia-nspj-lebork.pl/images/minecraft-free-version_GM479516143.pdfIn PDF document text
    • http://parafia-nspj-lebork.pl/images/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • http://parafia-nspj-lebork.pl/images/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://parafia-nspj-lebork.pl/images/can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://parafia-nspj-lebork.pl/images/minecraft-account-hacked_GM479516143.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_off00002c73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C73 22916 bytes
SHA-256: a4315e11e9dde1c34ed35f3c4c4ae3167a3ac649905d1337c559315f91d8d58f
font_01_sfnt_off00005fd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FD3 17644 bytes
SHA-256: 4350bb70586d7d356c834f80239bf16b03274066df9e9143be1036ee17eff588

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