Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7ad1d2e485ed267…

MALICIOUS

PDF

47.9 KB Created: 2021-06-03 22:44:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 27dd073d634baf84eaea73995210fcf5 SHA-1: 5e825dcb02d72373b28209231764ec3a966c2dad SHA-256: d7ad1d2e485ed267387e489d41e974d3df287de7c40c0f77e8494cfef2e47adb
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links and a call-to-action phrase, attempting to lure the user to click on a URL related to 'free Robux' or game hacks. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or social engineering attack aimed at redirecting users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.online/app/431946152/free-robux-websites-that-work-game-hack PDF link annotation
    • https://perpustakaan.stami.ac.id/repository/hack-de-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/free-spin-and-win-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/can-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/open-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/minecraft-wurst-hacked-client_GM479516143.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/minecraft-free-download-mac_GM479516143.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/hack-minecraft_GM479516143.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/coin-master-free-spins-link-facebook_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/free-spins-coin-master-twitter_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/pokemon-go-free-items_GM1094591345.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/coin-master-blogspot_GM406889139.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_off00005039.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5039 24868 bytes
SHA-256: 6f9e1bf64dfeb722b8aeebbb925e77c633571bbeb02414e2be4860f9a159335b
font_01_sfnt_off00008994.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8994 3884 bytes
SHA-256: 64ea6bfd232c3abde76d8b86727203bfa3f935a5783cd0c1f642cf6d3fb42b29
font_02_sfnt_off0000963c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x963C 19000 bytes
SHA-256: 7385cf8e30761df55e83d9792ae8d47179260988159899b0069d718a962ca50a

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