Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1f6e4b22e47bd92…

MALICIOUS

PDF

35.2 KB Created: 2021-07-05 16:10:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7d8ab0d0610fafc5ca672b43debc7ca9 SHA-1: aaef522c4542016ae8ed3a9db8ce804eea277803 SHA-256: c1f6e4b22e47bd9222320afaf3e417d70b5b5f53902a8f4c796ca0db37055063
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file employs a common lure of free game hacks and currency to entice users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which in turn hosts multiple other malicious PDFs. The ML classifier strongly indicates maliciousness, and the presence of multiple redirector links reinforces this assessment.

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/431946152/roblox-lovenet-game-hack In PDF document text
    • http://sttlets.education/senayan/repository/coin-master-game-free-spin_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/tiktok-free-gas_GM835599320.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/el-mejor-hack-de-roblox-del-mundio_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/mod-hackeadas-para-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-to-get-free-robux-on-pc-2021_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/hacks-para-coin-master_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/where-to-get-a-lot-of-robux-for-free_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/coin-master-daily-spin-link-app_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/robux-com-free_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/99-999-999-999-free-robux_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/robux-now_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/master-coin-free_GM406889139.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-robux-co_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan//repository/roblox-fun-com-robux_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-to-get-free-robux-very-easy-and-fast_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/how-to-get-5-million-free-robux_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/optifine-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/roblox-robux-generator-online-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/funny-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • http://sttlets.education/senayan/repository/free-robux-card-generator-no-survey_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_off000032bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32BB 22748 bytes
SHA-256: 8cb9d5473bc8b383536c6565f8851f8660aec624609334d2291ee2b6c2fd2801
font_01_sfnt_off0000658c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x658C 18704 bytes
SHA-256: 36552c55d6b01c3633473854ce8ec45091a4a8a9b855d0711e20b63456f47980

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