Malicious PDF — malware analysis report

Static analysis result for SHA-256 22a2751f477b2d79…

MALICIOUS

PDF

35.0 KB Created: 2021-07-03 22:17:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 61b513cd8bb4e63f7767c0e084b68c98 SHA-1: 11469a3a4666418747463204ed01aa380df38aa2 SHA-256: 22a2751f477b2d793a632c9fb2a9dacbe91f543d6820ac4523b5dd6b8f9b381f
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 0.9980

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.tw/app/479516143/minecraft-hacked-client-18-game-hack PDF link annotation
    • http://smpn1sda.sch.id/slims/repository/how-to-hack-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/get-free-wings-roblox_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/how-to-get-free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/roblox-speed-hack-2021-august_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/roblox-high-school-cheats-horor_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/free-100-robux-2021_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/minecraft-tower-defense-2-hacked_GM479516143.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/how-to-get-20210-robux-for-free_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/rbx-land-free-robux_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/coin-master-hack-mod-apk-35-8_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/minecraft-dungeons-free-download_GM479516143.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/coin-master-hack-apk-latest-version-2021_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/how-to-get-free-robux-no-nothing_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/coin-master-hack-online-link_GM406889139.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/roblox-hack-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/minecraft-apk-free-download_GM479516143.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://smpn1sda.sch.id/slims/repository/como-hackear-juego-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000656e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x656E 18588 bytes
SHA-256: 8e3a5c46349410794fd5c9c8edd28fb5e8e27dde13df1542e43e7e29ef6e05f6

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