Malicious PDF — malware analysis report

Static analysis result for SHA-256 65dd1117ddbedd42…

MALICIOUS

PDF

44.1 KB Created: 2021-05-16 05:33:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 363a80bf3ed49516260e11bd5e793d22 SHA-1: 74a689264128a6cbc94f972fe17afbe9097d2c6f SHA-256: 65dd1117ddbedd427a3edb2e21d05b1b6b4cf9d34870053eeac6118bfa91a4be
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 them by promising game hacks and free currency. The primary link, 'https://netcdn.xyz/app/431946152/i-got-hacked-on-roblox-game-hack', is identified as a malicious redirector. The document body, though heavily obfuscated, contains references to game hacks and Roblox, reinforcing the lure. No scripts were extracted, but the embedded URLs and the nature of the lure strongly suggest a phishing or scam attempt, likely leading to further malware download or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9976

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/431946152/i-got-hacked-on-roblox-game-hack In PDF document text
    • https://anshingtek.com.tw/image/data/files/hack-para-coin-master-sin-verification_GM406889139.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/earn-free-robux_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/mcpe-master-unlimited-coins-hack-apk_GM406889139.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/how-to-get-free-food-for-foxy-in-coin-master_GM406889139.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/free-robux-no-email_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/coin-master-home_GM406889139.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/coin-master-apk-hack-mod-download_GM406889139.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/free-roblox-toy-codes-not-used_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/hack-my-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/coin-master-hack-apk-35-11_GM406889139.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/www-rbx-com_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/free-minecraft-alt-accounts_GM479516143.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://anshingtek.com.tw/image/data/files/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b79.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B79 26924 bytes
SHA-256: 8138f2b33984f5dd3bc15e7308e3b0ffecb4a0ef0f359e5d067605395c5c4b6c
font_01_sfnt_off00008961.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8961 18460 bytes
SHA-256: a8a49c36ef4b2531a5f792820ad3efe99a39c3e474aae1f279e7d577006455a1

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