Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae2c8709e744b274…

MALICIOUS

PDF

45.1 KB Created: 2021-05-10 13:34:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 0a1f5ca9dde870cfdd89fe0e9962d30a SHA-1: d7ac28706a83c2f00fc50fa080ee8634360bdf33 SHA-256: ae2c8709e744b2749ed8fccca7783fc019eda1edd0ae9c71050c596e0c0da711
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 0.9632

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/inappropriate-roblox-games-game-hack PDF link annotation
    • http://tasleemdubai.com/userfiles/files/hack-the-game-coin-master_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/can-you-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-spin-link-today_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-robux-working_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/minecraft-hacks-18-9_GM479516143.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/roblox-cheat-codes_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/op-rewards-robux_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-vpn-for-minecraft_GM479516143.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-daily-free-spin-and-coin-link_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/como-hackear-coin-master-2021-espaol_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-robux-net_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/daily-coin-master-free_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/www-rubux_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-robux-real_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/descargar-coin-master-hackeado_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/roblox-redeem-robux_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-app-for-free-spins_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
stream_003_off000047cf.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47CF 25900 bytes
SHA-256: c1927a5f62264ac8437efe892b1cd62a7c1d780bda7f9cc22d421c46420c549b
font_01_sfnt_off00008250.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8250 2880 bytes
SHA-256: 10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
font_02_sfnt_off00008c3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C3A 18672 bytes
SHA-256: a34fe5295dcc4db89ba058eb4e8b801f8f691b08aa214e128da072cc58f05ab1

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