Malicious PDF — malware analysis report

Static analysis result for SHA-256 a310e75e0f9ac08b…

MALICIOUS

PDF

33.6 KB Created: 2021-06-18 04:29:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 4b8249a9144c00f4572a1c057ce0436c SHA-1: 26966795e7f7517b392fe8249aba1f3b5dbd119e SHA-256: a310e75e0f9ac08b30bbfc599669b9123b05905148e21ba29a4ca3ccb26dbbff
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.co/app/431946152/hack-bighead-simulator-roblox-game-hack PDF link annotation
    • http://maslabaou.com/images/how-to-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://maslabaou.com/images/best-hack-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://maslabaou.com/images/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://maslabaou.com/images/tiktok-views-free_GM835599320.pdfIn PDF document text
    • http://maslabaou.com/images/minecraft-free-download-ios_GM479516143.pdfIn PDF document text
    • http://maslabaou.com/images/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • http://maslabaou.com/images/coin-master-free-spins-and-coins-app_GM406889139.pdfIn PDF document text
    • http://maslabaou.com/images/what-is-robux-in-roblox_GM431946152.pdfIn PDF document text
    • http://maslabaou.com/images/free-robux-quiz_GM431946152.pdfIn PDF document text
    • http://maslabaou.com/images/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://maslabaou.com/images/pubg-uc-official-price_GM1330123889.pdfIn PDF document text
    • http://maslabaou.com/images/free-robux-live_GM431946152.pdfIn PDF document text
    • http://maslabaou.com/images/coin-master-hack-tool_GM406889139.pdfIn PDF document text
    • http://maslabaou.com/images/coin-master-game-hack-app-download_GM406889139.pdfIn PDF document text
    • http://maslabaou.com/images/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://maslabaou.com/images/coin-master-hack-apk-2021-ios_GM406889139.pdfIn PDF document text
    • http://maslabaou.com/images/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://maslabaou.com/images/coin-master-hack-software_GM406889139.pdfIn PDF document text
    • http://maslabaou.com/images/minecraft-games-to-play-for-free_GM479516143.pdfIn PDF document text
    • http://maslabaou.com/images/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

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_off00002c4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C4D 22036 bytes
SHA-256: e32c1b8af2736f4fd68b6a1e02ad65536ee4898caeb5bf6a396e5e26783b8853
font_01_sfnt_off00005d01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D01 19432 bytes
SHA-256: 101417f2e39c1437e4caf98e75b7102232cc9f9589fa31b6074c6b87a6a243d0

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