Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ac348b91a58dbe6…

MALICIOUS

PDF

43.7 KB Created: 2021-05-16 18:11:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: ad0e4b23e681c818fa7a2825842840f5 SHA-1: c8de060ed034ab3e292c80d1dd67424e22166eef SHA-256: 6ac348b91a58dbe6f8d3e9449e733d20f22b3ac2d6678a2f351602dc5c51a50f
100 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link and a visual download button, indicating an attempt to trick users into downloading software. The ML classifier also flagged this PDF with high confidence. The primary URL identified is https://netcdn.xyz/app/406889139/coin-master-3.5-13-hack-download-game-hack, which is associated with malicious redirector infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/406889139/coin-master-3.5-13-hack-download-game-hack In PDF document text
    • https://xiangquan.com.tw/image/data/files/instant-robux_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/coin-master-spin-hack-apk_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/coin-master-links-2021_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/roblox-robux_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/i-want-free-robux_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/can-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/coin-master-free-spins-link-2021-march_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-minecraft-capes-no-mods_GM479516143.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-role-in-coin-master_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-robux-rewards_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-robux-link_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/coin-master-apk-free-download_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/coin-master-free-food-for-pet_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/como-hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/minecraft-pe-free-apk_GM479516143.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/coins-master-hack_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-roblox-hack-us_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
stream_003_off00004be8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BE8 25512 bytes
SHA-256: 6fb6af14d99ca21f0a858a54bc2ea121a1f887a4d65963ad6aa5a2789cc25c5a
font_01_sfnt_off0000870b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x870B 18776 bytes
SHA-256: 580191f9d67cac0e57befe9d9f36e9aa4ec96fc89a456a262982ca34f80561e7

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