Malicious PDF — malware analysis report

Static analysis result for SHA-256 796762c9253eff3d…

MALICIOUS

PDF

35.3 KB Created: 2021-07-05 07:30:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 5847ea4dbb43d7d453e0881bcc1c8c29 SHA-1: aa30e6c5427a43b90501f82ab1e339d7f26c60d4 SHA-256: 796762c9253eff3d7a3444ff68e96f495a89ec2232e905e585853a8e39dd6503
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, with a primary focus on luring users with promises of game hacks and free currency for popular games like Coin Master and Roblox. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly indicates this malicious intent. While no scripts were explicitly extracted, the nature of the lures suggests a potential for JavaScript execution within the PDF to facilitate redirection to malicious sites or initiate downloads.

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/406889139/best-way-to-hack-coin-master-game-hack PDF link annotation
    • http://lib.smklabor.sch.id/repository/free-robux-no-verification-or-survey-100-real_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/how-to-be-a-roblox-hacker-and-hack-accounts_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/hacking-pokemon-reborn-roblox_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/roblox-free-item-generator_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/get-roebucks-com_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-minecraft-maps-pe_GM479516143.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/rbx-roblox-robux_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-codes-2021-september_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/is-kinetic-code-going-to-be-free-roblox_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-robux-no-offers_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/coin-master-hack-mod-apk-unlimited-spin-download_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/roblox-free-download-computer_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/hacker-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/coin-master-hack-tool-download_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/boost9-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/how-to-hack-someones-account-on-roblox-2021-february_GM431946152.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/todays-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://lib.smklabor.sch.id/repository/roblox-gift-card-online-free_GM431946152.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32DE 22896 bytes
SHA-256: d3cab335fb437fe1153007babff3e191a06b2bb69b0d1e382c3a2526b481b6b0
font_01_sfnt_off00006637.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6637 18600 bytes
SHA-256: 795bb7b67d1be391f10a55ce85078e04cbbe49810cfe5cd34154fe0b18fb34e0

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