Malicious PDF — malware analysis report

Static analysis result for SHA-256 74ec75852ea04738…

MALICIOUS

PDF

47.7 KB Created: 2021-06-11 00:05:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 87b129d7a6c002161db967c9bb129ce7 SHA-1: de2042fde0d48860269a22723128ce8bdacef747 SHA-256: 74ec75852ea04738e335c8082df6fdcd4ca9ba98b1051fb130b4177e3ab490f4
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF document contains embedded links that point to known malicious redirector infrastructure, specifically designed to lure users into downloading game hacks. The ML classifier also flagged this PDF as malicious with high confidence. The document body, though partially corrupted, contains text related to game hacks and a URL that aligns with the heuristic findings.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

Heuristics 3

  • 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.tw/app/431946152/roblox-retail-tycoon-1.1.6-hack-game-hack In PDF document text
    • http://www.tdbaska.hr/files/roblox-hacks-com_GM431946152.pdfIn PDF document text
    • http://www.tdbaska.hr/files/coin-master-heaven-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://www.tdbaska.hr/files/how-to-get-more-robux-for-free_GM431946152.pdfIn PDF document text
    • https://www.tdbaska.hr/files/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://www.tdbaska.hr/files/coin-master-haktuts_GM406889139.pdfIn PDF document text
    • https://www.tdbaska.hr/files/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • https://www.tdbaska.hr/files/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
    • http://www.tdbaska.hr/files/coin-master-hack-apk-download_GM406889139.pdfIn PDF document text
    • https://www.tdbaska.hr/files/minecraft-hacks-pc_GM479516143.pdfIn PDF document text
    • http://www.tdbaska.hr/files/coin-master-daily-gifts_GM406889139.pdfIn PDF document text
    • https://www.tdbaska.hr/files/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://www.tdbaska.hr/files/minecraft-hacks-list_GM479516143.pdfIn PDF document text
    • https://www.tdbaska.hr/files/robux-free-online_GM431946152.pdfIn PDF document text
    • https://www.tdbaska.hr/files/roblox40com-robux_GM431946152.pdfIn PDF document text
    • http://www.tdbaska.hr/files/minecraft-hack-2021_GM479516143.pdfIn PDF document text
    • https://www.tdbaska.hr/files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.tdbaska.hr/files/how-to-get-minecraft-for-free-on-xbox-one_GM479516143.pdfIn PDF document text
    • http://www.tdbaska.hr/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.tdbaska.hr/files/infinite-robux_GM431946152.pdfIn PDF document text
    • https://www.tdbaska.hr/files/how-to-get-minecraft-pe-for-free_GM479516143.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_004_off00004f5c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4F5C 30752 bytes
SHA-256: 878b97be2eef676ff37eadaa99b7f1ea635bb62e8d8d2516ea3e03ec293b0d87
font_01_sfnt_off00009603.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9603 18928 bytes
SHA-256: 21ca7024abb4bca10b4e73fca3d228491dc7c5c1d9a69038cc9526bbd697bd01

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