Malicious PDF — malware analysis report

Static analysis result for SHA-256 30f5c006d9bc9084…

MALICIOUS

PDF

34.8 KB Created: 2021-06-18 19:37:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 5b965f5a49c61ea1ba678e88c86f4e58 SHA-1: 80ed18efe1dbee99cb5cea528aebbf0977996a82 SHA-256: 30f5c006d9bc908495ea63729ea63da0d80ca861546382944a40261a6cc43644
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains a prominent link to a 'roblox-egghunt-2021-hack-game-hack' URL, identified as a lure for game hacks. This, combined with the ML classifier flagging the PDF as malicious, strongly suggests the document's purpose is to trick users into visiting a potentially harmful site. No scripts were extracted, limiting the analysis to the document's content and embedded links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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.co/app/431946152/roblox-egghunt-2021-hack-game-hack PDF link annotation
    • http://katalog.ireyogya.org/repository/coin-master-free-spin-software_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-lovenet_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-unlimited-spins_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-to-get-free-robux-rblx-gg_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/hack-xp-net-generators-coin-master_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-robux-generator-free-robux-and-tix_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-spin-hack-no-verification_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/pubg-uc-daraz_GM1330123889.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-minecraft-capes-no-mods_GM479516143.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-robux-free-bc_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/minecraft-mobile-free_GM479516143.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-free-coins-hack_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-robux-real_GM431946152.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_off00002f2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F2A 22616 bytes
SHA-256: 937008a50c685332bf7816570376adcf2036da11e46c136282d9e50d0e266388
font_01_sfnt_off000061d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61D5 19468 bytes
SHA-256: 49ed71cb5dc2437686b7d2da73fe7b4f04d005befa3c6a10a6fc81de5209bfd3

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