Malicious PDF — malware analysis report

Static analysis result for SHA-256 11884d83adcb7cf6…

MALICIOUS

PDF

48.0 KB Created: 2021-05-12 14:47:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 8731072123917c597fa01f69af83aa04 SHA-1: d0e521a32f90b17324234a5de52bf666926c81b4 SHA-256: 11884d83adcb7cf68d50435cc6a0b95b3c56754558c7f8f6886253f2fd894e05
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 0.9013

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/479516143/minecraft-free-download-mac-full-version-2021-game-hack PDF link annotation
    • http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
    • http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/coin-master-hack-tool-v1-9-download-free_GM406889139.pdfIn PDF document text
    • http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/roblox-free-play-no-download_GM431946152.pdfIn PDF document text
    • http://ma-hidayatulinsanpky.online/__statics/gudangsoal/files/free-robux-come_GM431946152.pdfIn PDF document text
    • http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/easy-way-to-get-robux_GM431946152.pdfIn PDF document text
    • http://ma-hidayatulinsanpky.online/__statics/gudangsoal/files/free-minecraft-client_GM479516143.pdfIn PDF document text
    • http://ma-hidayatulinsanpky.online/__statics/gudangsoal/files/how-to-download-minecraft-for-free-ios_GM479516143.pdfIn PDF document text
    • http://ma-hidayatulinsanpky.online/__statics/gudangsoal/files/minecraft-app-free-download_GM479516143.pdfIn PDF document text
    • http://ma-hidayatulinsanpky.online/__statics/gudangsoal/files/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://ma-hidayatulinsanpky.online/__statics/gudangsoal/files/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/free-robux-kid-friendly_GM431946152.pdfIn PDF document text
    • http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/roblox-character-free_GM431946152.pdfIn PDF document text
    • http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/roblox-free-rubox_GM431946152.pdfIn PDF document text
    • http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/free-t-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/how-to-hack-coin-master-ios-2021_GM406889139.pdfIn PDF document text
    • http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • http://ma-hidayatulinsanpky.online/__statics/gudangsoal/files/claim-gg-free-robux_GM431946152.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_off00004e93.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E93 28208 bytes
SHA-256: cf3db8ff7624435b99a5e5f8ed99e361fd2740e51a3048381967e8bfd1fcf0ea
font_01_sfnt_off00008ce2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CE2 3128 bytes
SHA-256: 801f6fa60decd1add2f223f91580103c35e150c924465f86a7a572b3e00674f9
font_02_sfnt_off00009722.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9722 18964 bytes
SHA-256: b6087cd044d66512a4bbe462cbd4c424643b24317ccde57b4a21bed9d436f387

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