Malicious PDF — malware analysis report

Static analysis result for SHA-256 30906f3e73989f09…

MALICIOUS

PDF

44.5 KB Created: 2021-06-08 16:55:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 95dfb05aae17fb40567c68f51b7333a3 SHA-1: 214558299a495ef2a807f78e052c23b9f166e335 SHA-256: 30906f3e73989f09ea3315176b807e06c0d1a90d7b2700e6b925c5e51451f3b7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

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 0.9865

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 https://netcdn.tw/app/431946152/free-robux-cheap-game-hack PDF link annotation
    • https://new-era.com.tw/image/data/files/free-links-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/coin-master-hack-355_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/javascript-free-robux_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/coin-master-free-coins-and-spins-blogspot_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/free-google-play-promo-codes-coin-master_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/free-roblox-money_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/free-coins-on-coin-master-without-verification_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/minecraft-pe-hacks_GM479516143.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/minecraft-java-free-download_GM479516143.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/how-to-get-minecraft-for-free-on-chromebook_GM479516143.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/how-to-get-minecoins-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/minecraft-pe-hacks-ios_GM479516143.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/free-robux-without-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/roblox-hacked-version_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/pokemon-go-free-team-medallion_GM1094591345.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004f84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F84 26208 bytes
SHA-256: 6eda2db9281e7b4a723f8da222ff9a352bfdeae32fe074bebd98fcbb2c15267e
font_01_sfnt_off00008a89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A89 18584 bytes
SHA-256: 51dbd6547774dae63a75cba86b1e165a2a777627b1bb167e87881656a5b4ac50

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