Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bd78c12468ff03d…

MALICIOUS

PDF

41.9 KB Created: 2021-05-16 14:15:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 54273fd38fc98a75ac71c635b5aa5c0d SHA-1: 29ebec857e38328ef24ac082809097e3e687cc47 SHA-256: 5bd78c12468ff03df185ab29c496c3b04d4c2c251c2968c50404a12dc906218b
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links and a visual download button, strongly suggesting a lure to download a second-stage payload. The ML classifier and critical heuristic firing on a malicious redirector link confirm the malicious intent. The document body, though heavily obfuscated, contains URLs related to game hacks, indicating a social engineering pretext for the download.

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/mcpe-1.16-game-hack In PDF document text
    • https://newenglandafs.com/images/how-to-get-free-hats-on-roblox_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/grab-points-login_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/june-29-coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • https://newenglandafs.com/images/free-robux-please_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/coin-master-hack-tool_GM406889139.pdfIn PDF document text
    • https://newenglandafs.com/images/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/free-minecraft-capes-no-mods_GM479516143.pdfIn PDF document text
    • https://newenglandafs.com/images/how-to-get-free-robux-inspect_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • https://newenglandafs.com/images/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • https://newenglandafs.com/images/free-robux-quiz_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/how-to-get-java-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://newenglandafs.com/images/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/free-coins-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • https://newenglandafs.com/images/coin-master-free-gold_GM406889139.pdfIn PDF document text
    • https://newenglandafs.com/images/como-generar-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://newenglandafs.com/images/hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • https://newenglandafs.com/images/i-want-free-robux_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/funbloxxyz-free-robux_GM431946152.pdfIn PDF document text
    • https://newenglandafs.com/images/coin-master-free-spins-app-android_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_off0000491d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x491D 25208 bytes
SHA-256: 1da6140a3c7c79ed3cedc76c4c55c347a5abf3574e4580990f6246daf84bcd0c
font_01_sfnt_off00008378.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8378 17632 bytes
SHA-256: 4711a1543ea496a0f3d81235f335b2b9fd92f871e961f966e2047284bc2cd8dc