Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d19e587c596eaa1…

MALICIOUS

PDF

34.9 KB Created: 2021-07-03 14:03:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 8fe6266c8b860b11c1592ecffa0781ed SHA-1: 94f31f67973cebe440c399b857e0aab916222ca8 SHA-256: 9d19e587c596eaa1cc7abd665a8c45c5d29d694fbbeb572511e41c245a47c819
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/431946152/where-to-get-free-robux-game-hack PDF link annotation
    • http://daskrimti-jabar.web.id/library/repository/pokemon-go-free-gift-codes_GM1094591345.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/cheat-engine-hacks-roblox-2021_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/roblox-apk-hack_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/make-your-own-minecraft-server-free_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-custom-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/june-29-coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/robux-gainer-free_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/pig-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/give-me-robux-now_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-spins-coin-master-links-thursday-november-28-2021_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-to-get-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/free-robux-roblox-hack-no-survey-no-human-verification_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-to-get-free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library//repository/moon-active-games_GM406889139.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/wurst-client_GM479516143.pdfIn PDF document text
    • http://daskrimti-jabar.web.id/library/repository/how-to-hack-coin-master-android_GM406889139.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_off00003024.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3024 22644 bytes
SHA-256: c5df9f78564b28cad39de223928d5ccf704ac51d480fd454cd954fb95c437903
font_01_sfnt_off000062d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62D3 19184 bytes
SHA-256: e942b93b228ea09a2b9b89b185e62feaf889c583a2152a741a620a9da1dbb754

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