Malicious PDF — malware analysis report

Static analysis result for SHA-256 0615d19c436ed840…

MALICIOUS

PDF

44.7 KB Created: 2021-05-17 20:44:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 820651d06fbeb2a303c6db8b73a73990 SHA-1: 2e63873c09ddd78fb6776ba65b7327fc0c433470 SHA-256: 0615d19c436ed840325afd6d06686e7c3aa0ce7dd6c86416cda136f2fe7158ff
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generator / game hack' lures. The document body and extracted URLs strongly suggest a phishing or scam attempt aimed at users seeking in-game advantages. The presence of embedded URLs and the nature of the lures indicate a likely attempt to drive users to potentially malicious websites for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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 https://netcdn.xyz/app/406889139/pro-free-spins-coin-master-game-hack In PDF document text
    • http://butkimloai.com/images/how-do-i-get-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://butkimloai.com/images/free-headless-head-roblox_GM431946152.pdfIn PDF document text
    • http://butkimloai.com/images/coin-master-spin-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://butkimloai.com/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://butkimloai.com/images/coin-master-hack-mod-apk-2021_GM406889139.pdfIn PDF document text
    • http://butkimloai.com/images/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
    • http://butkimloai.com/images/free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://butkimloai.com/images/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://butkimloai.com/images/free-rewards-coin-master_GM406889139.pdfIn PDF document text
    • http://butkimloai.com/images/minecraft-toys-for-free_GM479516143.pdfIn PDF document text
    • http://butkimloai.com/images/coin-master-hack-version-2021_GM406889139.pdfIn PDF document text
    • http://butkimloai.com/images/coin-master-unlimited-spins_GM406889139.pdfIn PDF document text
    • http://butkimloai.com/images/rbxcity-free-robux_GM431946152.pdfIn PDF document text
    • http://butkimloai.com/images/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://butkimloai.com/images/daily-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://butkimloai.com/images/coin-master-hack-blog_GM406889139.pdfIn PDF document text
    • http://butkimloai.com/images/minecraft-download-free-download_GM479516143.pdfIn PDF document text
    • http://butkimloai.com/images/coin-master-pc-hack-tool_GM406889139.pdfIn PDF document text
    • http://butkimloai.com/images/how-to-get-free-cards-sets-for-coin-master_GM406889139.pdfIn PDF document text
    • http://butkimloai.com/images/coin-master-hack-no-survey-or-verification_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004902.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4902 25756 bytes
SHA-256: d38b9f66a5a639456f63a4b9f513cfb584475be772701e2ccdc6c465f9602c5b
font_01_sfnt_off00008330.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8330 2824 bytes
SHA-256: 381f6d859be141449dd645f7be1484d2a1cf49218dc471b402dae69eaa2b11d5
font_02_sfnt_off00008cd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CD2 18040 bytes
SHA-256: f9cfd09f1f0adcfb05f49f46170915efea321752292d644bf66086fa9d05ce61

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