Malicious PDF — malware analysis report

Static analysis result for SHA-256 338473d7efb8b87b…

MALICIOUS

PDF

42.8 KB Created: 2021-05-14 09:17:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f6c6eb1dd989245b5db6ce00afb4b9de SHA-1: 3f249b90a8b1340eb33f09dbb7b7a36e2db63755 SHA-256: 338473d7efb8b87baa7347e7d22ac25d3584ce0fc8f6e4f1c5fe77bdc5cf0c02
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains embedded links pointing to known malicious redirector infrastructure, specifically 'https://netcdn.xyz/app/431946152/robuxmatch.con-game-hack'. The presence of a visual download button and the overall structure suggest a lure to download a second-stage payload. The ML classifier also strongly flagged this PDF as malicious.

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/431946152/robuxmatch.con-game-hack In PDF document text
    • http://lamascheradiferro.dk/images/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/roblox-april-fools-hack_GM431946152.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/free-rare-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/coin-master-200-spin-link_GM406889139.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/coin-master-free-spins-hack-iphone_GM406889139.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/minecraft-images-free_GM479516143.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/how-to-hack-in-arsenal_GM431946152.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/how-to-get-infinite-robux_GM431946152.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/roblox-free-executor_GM431946152.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/coin-master-hack-version-2021-free-download_GM406889139.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/wurst-hacks_GM479516143.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/coin-master-free-gifts_GM406889139.pdfIn PDF document text
    • http://lamascheradiferro.dk/images/coin-master-free-spins-2021_GM406889139.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_off00004aa4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AA4 25876 bytes
SHA-256: 846dc7c2efb671bc007695dda0df84ff1451afd4213e918116c139495a51b794
font_01_sfnt_off000083a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83A1 18672 bytes
SHA-256: b3ad435d94df059fa4f5f4039152be4ff635e0c8c599297d8dd6c4123da1a60e

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