Malicious PDF — malware analysis report

Static analysis result for SHA-256 567fefcae717581b…

MALICIOUS

PDF

34.2 KB Created: 2021-07-06 00:57:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: f9f7e82847e3040269471d1c9bdbf9a9 SHA-1: ff89976c832b08a03a1b2e39baf32ffddd12bbef SHA-256: 567fefcae717581bd356c5974359af7fe3c53c572e4986933eff486a575c9be0
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/406889139/coin-master-hack-apk-iphone-game-hack PDF link annotation
    • http://perpus.stfm.ac.id/repository/real-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/roblox-executor-free_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/how-to-get-a-lot-of-robux_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/best-free-robux-sites_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/real-coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/how-to-get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/pubg-uc-or-pc_GM1330123889.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/coin-master-free-spins-that-really_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/hack-for-roblox-jailbreak-download_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/how-to-get-free-robux-easy-no-download_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/coin-master-spin-ml_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/roblox-bee-swarm-simulator-free-egg-codes_GM431946152.pdfIn PDF document text
    • http://perpus.stfm.ac.id/repository/no-human-verification-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/free-robux-generator-for-kids_GM431946152.pdfIn PDF document text
    • http://www.perpus.stfm.ac.id/repository/get-free-roblox_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_off00002f8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F8F 22908 bytes
SHA-256: 56e9ee952716fbdf42d91fd0b3ccbba9bc3946d39b0359eda9056fc867619240
font_01_sfnt_off000062f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62F3 18344 bytes
SHA-256: 48c41a6d06caede2bfe7c3afa9e405a795656508ab3dfdd406afe33248ac35d9

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