Malicious PDF — malware analysis report

Static analysis result for SHA-256 506e5684cfb77588…

MALICIOUS

PDF

32.9 KB Created: 2021-07-20 06:44:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 70f4aac3c5839c8b951cfab7672713b9 SHA-1: e0f8cd14f88444f68c507c9e0c8e991d8cbb3941 SHA-256: 506e5684cfb77588369d8689810372244104040b688911f13302356583eaa60e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to 'free Minecraft hacks' to entice users into clicking embedded links. The document body contains a call-to-action phrase and multiple URLs pointing to sites offering game-related cheats and generators. The ML classifier strongly indicated maliciousness, and the PDF's structure and content align with social engineering tactics to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

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/best-minecraft-hacks-game-hack PDF link annotation
    • http://cleansui.com.tw/image/data/files/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/get-free-tiktok-followers_GM835599320.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/minecraft-story-mode-free_GM479516143.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/free-tiktok-fans_GM835599320.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/free-tiktok-views_GM835599320.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/hack-robux_GM431946152.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/free-spins-on-coin-master-2021_GM406889139.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_off00002e12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E12 22312 bytes
SHA-256: 8d208d4c41f20469a65438a1d2159d1d0f225d4114e177b52a8e988f96fd7a4f
font_01_sfnt_off00005f93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F93 17952 bytes
SHA-256: 6dfee1982b58ab3489cc821793519200b658269375d8b02cd788103d93863fb8

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