Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce6988dd28c939b6…

MALICIOUS

PDF

34.6 KB Created: 2021-07-09 12:44:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: b6b757057146f4b8c0542e02f41ee980 SHA-1: 0e226e8c0190bad68b1420cd0e300208d50f69e3 SHA-256: ce6988dd28c939b6ace635929e9212f892fd4c1f8ee80495dfd50432b90222f8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and further malicious PDFs, masquerading as game hacks and generators. The primary lure URL is http://netcdn.tw/app/479516143/minecraft-free-download-windows-10-game-hack. The document body and heuristics indicate a clear intent to redirect users to potentially harmful content, likely for further malware delivery or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/minecraft-free-download-windows-10-game-hack In PDF document text
    • http://empresa-venta.hr/files/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/roblox-rocitizens-money-hack-2021_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/roblox-hack-apk_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/hack-script-boku-no-roblox-remastered_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/pokemon-go-free-83_GM1094591345.pdfIn PDF document text
    • http://empresa-venta.hr/files/boku-no-roblox-hack_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/links-to-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/how-to-make-a-private-server-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/free-roblox-premium_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/codes-for-roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/free-premium-roblox_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/coin-master-codes_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/things-that-are-for-free-in-roblox_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/coin-master-apk-hack-mod-download_GM406889139.pdfIn PDF document text
    • http://empresa-venta.hr/files/best-roblox-hack-client_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • http://empresa-venta.hr/files/free-robux-jan-2021_GM431946152.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_off000030bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30BC 22328 bytes
SHA-256: 5510470cf9eedd9d7e6b00f4f082001501408375fbab75cf5b06475a4a2206b6
font_01_sfnt_off000061fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61FA 19056 bytes
SHA-256: a204aa6cbe114819a22d8bb9e9addc39de0900fe99e8aa3612fe51afc3ec244e

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