Malicious PDF — malware analysis report

Static analysis result for SHA-256 64f297b2ac473582…

MALICIOUS

PDF

33.0 KB Created: 2021-07-08 12:28:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: c9ef980270aba8b413e4c5b169aea43b SHA-1: 18579271b5dd79b6808bc12fa8c32699dd8ee7fd SHA-256: 64f297b2ac4735822a08a9c5d55122d8abfa3b71452b4d5f2f39acb2523deb42
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/free-coins-coin-master-hack-game-hack PDF link annotation
    • https://new-era.com.tw/image/data/files/how-to-get-free-chest-in-coin-master_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/roblox-pajamas-for-boys-free-shipping_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/free-random-robux-codes_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/robux-hack-gratis_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/how-to-hack-coin-master-spin-ios_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/free-robux-games_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/free-spin-coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/roblox-free-net_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/how-to-be-a-inspect-hack-on-mobile-roblox_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/coin-master-2021-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/roblox-free-tix-2021_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/free-spins-coin-master-november-2021_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/password-free-roblox-accounts_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_off00002e3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E3F 21856 bytes
SHA-256: 3de35e738e33d3edd7bd9f9bf3efb19a3c722f61fb349b8edfd0c28205c16811
font_01_sfnt_off00005e7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E7E 18168 bytes
SHA-256: 43e2e61e8dd74d9d7b73efa7f294753c283a217de09b7f0de140137b61c3d91a

Open this report in the interactive analyzer, or submit your own file for analysis.