Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc2d04a5c8dc0584…

MALICIOUS

PDF

36.5 KB Created: 2021-07-05 10:41:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 980363d9551418f46536028d96b92477 SHA-1: 9abfea6760d90ba2bba0a0c5f58b761c4da0ae29 SHA-256: fc2d04a5c8dc05845df78dd196deba5492ede8cef94f7c48dc38ff3c8c20eabc
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a "free generator / game hack" and provides password instructions, a common tactic to bypass security filters for malicious downloads. The document body and extracted URLs point to various game-related hacks and generators, suggesting a phishing or scam attempt. No scripts were extracted from this sample, but the overall structure and content indicate a malicious intent to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/how-to-get-free-robux-without-doing-anything-2021-game-hack PDF link annotation
    • http://library.unissula.ac.id/fk/repository/free-robux-codes-no-survey_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/roblox-pet-simulator-hack-download_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/how-to-hack-other-players-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/roblox-hack-account-and-password_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/pubg-uc-no-verification_GM1330123889.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/free-tiktok-like_GM835599320.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/free-spin-app-for-coin-master_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/hack-coin-master-apk-2021_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/pokemon-go-free-vs-ultra_GM1094591345.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/free-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/how-to-get-minecraft-dungeons-for-free_GM479516143.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/free-nike-shirts-and-with-alpha-4-roblox_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/how-to-make-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/easy-robux-today-com_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/free-gift-card-codes-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/hack-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/robuxglobalcom-no-verification_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/lv-7-roblox-hack_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_off00003493.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3493 22332 bytes
SHA-256: 2738e0f498967b99530c054fdfb6817ba9651ebf0f1c18be31feb53292eb18b5
font_01_sfnt_off00006651.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6651 20220 bytes
SHA-256: 9b30e2885eb5843fedd856b186065d0d919d61cb100e3271a00bcc18fb5681c8

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