Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d6baf4e5359310d…

MALICIOUS

PDF

32.4 KB Created: 2021-07-19 02:28:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 2e24b23b9d21150452c96d6703257fcb SHA-1: bd4608f9589be8af52638df1f336b45114f43004 SHA-256: 5d6baf4e5359310d2a0f5485fbdac77573ff24f68352d8c2442097b40f3c0874
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to external websites, one of which is identified as a known malicious redirector. The document body and embedded links suggest a lure for downloading a game-related application, likely malicious. The presence of embedded links and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9895

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 http://netcdn.tw/app/479516143/minecraft-pe-0.15-0-apk-free-download-game-hack In PDF document text
    • http://homequeen.de/images/download-minecraft-free-hiapphere_GM479516143.pdfIn PDF document text
    • http://homequeen.de/images/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://homequeen.de/images/free-tiktok-views-no-verification_GM835599320.pdfIn PDF document text
    • http://homequeen.de/images/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://homequeen.de/images/coin-master-free-spin-and-coins-links_GM406889139.pdfIn PDF document text
    • http://homequeen.de/images/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://homequeen.de/images/free-minecraft-mods_GM479516143.pdfIn PDF document text
    • http://homequeen.de/images/free-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • http://homequeen.de/images/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002a6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A6F 21680 bytes
SHA-256: 5566e7797a90ef860e9f001bb5d4948a505c142e81727686513b689b6bcbeaaa
font_01_sfnt_off000059ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59BA 19268 bytes
SHA-256: 9273c8c2b8a269721a9438858e1c0aeb95c142b4551f9d4ca11e724d76d79d6e

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