PDF static analysis report

Static analysis result for SHA-256 5477851eb2364aa4…

SUSPICIOUS

PDF

43.0 KB Created: 2021-05-12 21:52:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: f648ae72d3c8e6b39311f8211db1649c SHA-1: 856a23ee3f0fef59f06430fc881b7d3c52ef3cd4 SHA-256: 5477851eb2364aa43931c5cdf1a83a81cfb01b9c4aebafa58f2a98a4bcdeea63
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs that are lures for free in-game currency and items, such as 'Coin Master Free Spins' and 'Roblox Free Robux'. The presence of these links, combined with a high ML classifier score and the document's structure, strongly suggests a phishing or malware distribution attempt. The document's content and embedded links indicate an attempt to trick users into visiting malicious websites, likely for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 3

  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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-free-spins-link-facebook-game-hack PDF link annotation
    • http://apteka-ot-sklada.com.ua/images/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://apteka-ot-sklada.com.ua/images/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://apteka-ot-sklada.com.ua/images/coin-master-fb-free-spins-link_GM406889139.pdfIn PDF document text
    • http://apteka-ot-sklada.com.ua/images/is-it-possible-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://apteka-ot-sklada.com.ua/images/coin-master-cheats-2021_GM406889139.pdfIn PDF document text
    • http://apteka-ot-sklada.com.ua/images/actual-free-robux_GM431946152.pdfIn PDF document text
    • http://apteka-ot-sklada.com.ua/images/free-spins-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • http://apteka-ot-sklada.com.ua/images/coin-master-email-rewards-link_GM406889139.pdfIn PDF document text
    • http://apteka-ot-sklada.com.ua/images/roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://apteka-ot-sklada.com.ua/images/coin-master-free-spins-reddit_GM406889139.pdfIn PDF document text
    • http://apteka-ot-sklada.com.ua/images/i-didnt-get-my-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://apteka-ot-sklada.com.ua/images/how-to-get-minecraft-for-free-ios_GM479516143.pdfIn PDF document text
    • http://apteka-ot-sklada.com.ua/images/roblox-game-free-download_GM431946152.pdfIn PDF document text
    • http://apteka-ot-sklada.com.ua/images/mcpe-free-download_GM479516143.pdfIn PDF document text
    • http://apteka-ot-sklada.com.ua/images/how-can-you-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://apteka-ot-sklada.com.ua/images/what-games-give-you-robux_GM431946152.pdfIn PDF document text
    • http://apteka-ot-sklada.com.ua/images/hacked-client-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://apteka-ot-sklada.com.ua/images/free-robux-sites-2021_GM431946152.pdfIn PDF document text
    • http://apteka-ot-sklada.com.ua/images/free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://apteka-ot-sklada.com.ua/images/minecraft-wurst_GM479516143.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_off00004a2b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A2B 25680 bytes
SHA-256: 26dd7d63e39fca90e667d834aeed4c45a14486c15be07150a6b2f4d9beb94c22
font_01_sfnt_off000085d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85D4 18212 bytes
SHA-256: f7455627fca89e56f376775387bf90d900308051c02650cf5925308effc7bf6a