Malicious PDF — malware analysis report

Static analysis result for SHA-256 570e788c6e626c95…

MALICIOUS

PDF

35.8 KB Created: 2021-07-09 07:23:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 91b3c6c7359228d34d1ea42beda06689 SHA-1: b15de4cea08814ca7dfa17dcffaff4597f4d6d84 SHA-256: 570e788c6e626c950784c2d7af65c9123cde9141f9f88283dd869089a1215f3e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into clicking on what appears to be a "game hack" or "free generator". The primary link, http://netcdn.tw/app/406889139/coin-master-jackpot-hack-game-hack, is identified as a malicious redirector. The document body and embedded links suggest a social engineering tactic to drive traffic to potentially malicious websites or download further malware. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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/406889139/coin-master-jackpot-hack-game-hack In PDF document text
    • https://cleansui.com.tw/image/data/files/face-added-by-hacker-roblox_GM431946152.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/how-to-hack-into-builder-mans-account-roblox_GM431946152.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/tiktok-bots-free_GM835599320.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/master-coin-hack-app_GM406889139.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/roblox-earn_GM431946152.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/roblox-com-free-gift-card_GM431946152.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/make-free-robux_GM431946152.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/www-rubux_GM431946152.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/free-gucci-shirt-roblox_GM431946152.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/roblox-elemental-battlegrounds-hack-diamonds_GM431946152.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/coin-master-fb-free-spins-link_GM406889139.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/coin-master-hacks-for-cards_GM406889139.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/pubg-300-uc-free_GM1330123889.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/coin-master-cheats_GM406889139.pdfIn PDF document text
    • http://cleansui.com.tw/image/data/files/coin-master-village-cost_GM406889139.pdfIn PDF document text
    • https://cleansui.com.tw/image/data/files/coin-master-daily-free-spins-link_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
stream_002_off000035dc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x35DC 22912 bytes
SHA-256: aed00bd0f2a5bae93d6928025346bc65c2865e5eb3b1c39f634631ac3d3cb027
font_01_sfnt_off000068f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68F9 18344 bytes
SHA-256: cead3baa2d1d10a086482c84263685540bbf4bc76bc798cce3a71f7b95e822da

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