Malicious PDF — malware analysis report

Static analysis result for SHA-256 db4b047f1a5f2ab0…

MALICIOUS

PDF

41.3 KB Created: 2021-05-19 01:16:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6384735364946e66e9885ca9c59a4a9e SHA-1: 93fd6dd80b2cfd14d1ea9732c8a9bcd4968172ac SHA-256: db4b047f1a5f2ab018350186bd58ab36c504e311b5fccf0bc2dc6a659b28d209
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains embedded links that point to known malicious redirector infrastructure, specifically leading to a download for 'wurst-1.12-game-hack'. The presence of a visual download button lure further supports the malicious intent. The document body, though partially corrupted, also contains URLs that likely serve as lures for further malicious downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/479516143/wurst-1.12-game-hack In PDF document text
    • https://vosco.vn/uploads/vosco.vn/files/free-daily-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • https://vosco.vn/uploads/vosco.vn/files/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://vosco.vn/uploads/vosco.vn/files/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • https://vosco.vn/uploads/vosco.vn/files/coin-master-free-link_GM406889139.pdfIn PDF document text
    • https://vosco.vn/uploads/vosco.vn/files/hack-coin-master-pc_GM406889139.pdfIn PDF document text
    • https://vosco.vn/uploads/vosco.vn/files/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • https://vosco.vn/uploads/vosco.vn/files/coin-master-hack-xyz-download_GM406889139.pdfIn PDF document text
    • https://vosco.vn/uploads/vosco.vn/files/coin-master-hack-spins-and-coins-unlimited-free_GM406889139.pdfIn PDF document text
    • https://vosco.vn/uploads/vosco.vn/files/free-robux-mod_GM431946152.pdfIn PDF document text
    • https://vosco.vn/uploads/vosco.vn/files/collect-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://vosco.vn/uploads/vosco.vn/files/free-minecraft-packs_GM479516143.pdfIn PDF document text
    • https://vosco.vn/uploads/vosco.vn/files/legit-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://vosco.vn/uploads/vosco.vn/files/free-robux-microsoft_GM431946152.pdfIn PDF document text
    • https://vosco.vn/uploads/vosco.vn/files/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • https://vosco.vn/uploads/vosco.vn/files/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://vosco.vn/uploads/vosco.vn/files/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://vosco.vn/uploads/vosco.vn/files/coin-master-free-spins-no-survey_GM406889139.pdfIn PDF document text
    • https://vosco.vn/uploads/vosco.vn/files/minecraft-bedrock-edition-download-pc-free_GM479516143.pdfIn PDF document text
    • https://vosco.vn/uploads/vosco.vn/files/hack-a-game_GM431946152.pdfIn PDF document text
    • https://vosco.vn/uploads/vosco.vn/files/free-minecraft-java-code_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_003_off0000488d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x488D 24568 bytes
SHA-256: cf070222023c5101405a81a3161dd45e1bf778d1d7de9f92386cf355850c7321
font_01_sfnt_off0000808c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x808C 17856 bytes
SHA-256: 231ed0e7957a5c445c778f0fe1c9318810f2b5562dc1cd2ae15ff2a5633334db

Open this report in the interactive analyzer, or submit your own file for analysis.