Malicious PDF — malware analysis report

Static analysis result for SHA-256 020cc05304b11c36…

MALICIOUS

PDF

45.2 KB Created: 2021-06-09 01:10:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7037cf2ac354de1e4c6d061c1a72b5e4 SHA-1: a48fd9c0e2b1f365eedf0bc404f750cebbf5fcef SHA-256: 020cc05304b11c36c4174a5e4be4ce6b45e63dd8f56577c8110bc505a74c2cbe
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links and a document body that attempts to lure users with promises of free game currency or hacks, directly linking to a known malicious redirector. The ML classifier also flagged this PDF as malicious. The presence of embedded URLs and the lure text strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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/j In PDF document text
    • https://www.gornjastubica.hr/files/robux-free-c_GM431946152.pdfIn PDF document text
    • https://www.gornjastubica.hr/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://gornjastubica.hr/files/minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • https://www.gornjastubica.hr/files/how-to-get-minecraft-for-free-on-ps4-2021_GM479516143.pdfIn PDF document text
    • https://www.gornjastubica.hr/files/simplysarc_GM479516143.pdfIn PDF document text
    • https://www.gornjastubica.hr/files/robux-get-com_GM431946152.pdfIn PDF document text
    • http://gornjastubica.hr/files/how-to-get-free-clothing-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.gornjastubica.hr/files/smart-lodhi-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.gornjastubica.hr/files/free-minecraft-premium-account_GM479516143.pdfIn PDF document text
    • https://www.gornjastubica.hr/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://www.gornjastubica.hr/files/free-roblox-clothes-boy_GM431946152.pdfIn PDF document text
    • http://gornjastubica.hr/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://gornjastubica.hr/files/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • http://gornjastubica.hr/files/how-to-get-free-spins-grom-coin-master_GM406889139.pdfIn PDF document text
    • http://gornjastubica.hr/files/free-spins-coin-master-2021-glitch_GM406889139.pdfIn PDF document text
    • https://www.gornjastubica.hr/files/how-to-download-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • http://gornjastubica.hr/files/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://gornjastubica.hr/files/minecraft-windows-10-code-free_GM479516143.pdfIn PDF document text
    • http://gornjastubica.hr/files/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://gornjastubica.hr/files/are-pubg-uc-cheap_GM1330123889.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_off000050d1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x50D1 25632 bytes
SHA-256: 2b3775f6fc26af709df4a5adbf587205214c9102f511d995616bbac2c67d3122
font_01_sfnt_off00008ba3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BA3 19184 bytes
SHA-256: 37ac7c406db79a109341829a5eba783a79be88ca82d978d9ec7486910def89c2

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