Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee7f9b120ce739e4…

MALICIOUS

PDF

32.5 KB Created: 2021-07-03 15:28:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 2c7788cb670c2ef31ef654d4d539c7b2 SHA-1: 1a5a7d6aa6d2da9b818f2fd50941cc51922eed2f SHA-256: ee7f9b120ce739e43e7186ae734b38030c7e035133c8de17009a7124df3936ee
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 0.9824

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-games-to-play-for-free-game-hack PDF link annotation
    • http://projectunionstreet.com/library/repository/coin-master-free-spins-daily-2021_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/free-robux-promo-codes-2021-november_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/pig-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/free-account-roblox-pastebin_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coin-master-hack-apk-2021_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/clients-minecraft_GM479516143.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coin-master-free-online_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/roblox-rules_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/free-minecraft-shaders_GM479516143.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coin-master-online-free-spin_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/free-spin-coin-master-hacktoman_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/how-to-hack-a-minecraft-account_GM479516143.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/coin-master-ios-gods-hack_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/free-attacks-coin-master_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/free-coin-master-cheats_GM406889139.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/how-to-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • http://projectunionstreet.com/library/repository/how-to-get-free-coins-on-flip-master_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_off00002b2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B2F 22012 bytes
SHA-256: 1a6c07de37d37fe80e44dcbd16f46b6d4254cee098fc2214535f71c3362d9b9f
font_01_sfnt_off00005b9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B9E 18664 bytes
SHA-256: 0725e80f6a4e873f5ab50492ee12f8fb405ccf899727b50dbe4c632344f48946

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