Malicious PDF — malware analysis report

Static analysis result for SHA-256 f89bfbb8f3b08b2a…

MALICIOUS

PDF

45.5 KB Created: 2021-06-03 10:10:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22
MD5: c243d673c69205d3dff488cfbe165a17 SHA-1: 86c85a76df4886bf13c1b23e10d8c1ca2527693d SHA-256: f89bfbb8f3b08b2a40697d2e46f15efe63add1c6d256fcd803935061730bf5f9
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 0.9864

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/406889139/how-to-get-free-spins-on-coin-master-2021-game-hack PDF link annotation
    • https://perpustakaan.stami.ac.id//repository/coin-master-hack-ios-no-jailbreak_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/coin-master-working-hack_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/minecraft-pe_GM479516143.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/earn-robux-today_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/how-to-make-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/minecraft-java-account-free_GM479516143.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/microsoft-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/roblox-download-pc-free_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/coin-master-online-hack-download_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/www-coin-master-hack-tk_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/minecraft-net-free_GM479516143.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/orewards-com-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/get-free-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/roblox-free-wings_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id//repository/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/is-windows-10-minecraft-free_GM479516143.pdfIn PDF document text
    • https://perpustakaan.stami.ac.id/repository/collect-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
stream_004_off000050eb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50EB 29304 bytes
SHA-256: 2170b5d5e1b735ce998303f1ef98d550669f12480fa32c53d8d4bbfc0413b6ad
font_01_sfnt_off00008ea3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EA3 18452 bytes
SHA-256: 240b90d3225a309efd4f22f05c72cc9c47fc9cdac152c3e16e2e4001354cf22f

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