PDF static analysis report

Static analysis result for SHA-256 6efb53a045f0ad47…

SUSPICIOUS

PDF

33.6 KB Created: 2021-07-07 02:26:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 90a8c8a441f1aabca93323c6ecd1f877 SHA-1: bc04fad3d7ee6cd84ec7bc158586c5632a617fd8 SHA-256: 6efb53a045f0ad47a16a34eb30ae30fdc43edc60e682124ee87e2e41634a9d63
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and text that mimic a download link for a game hack, specifically 'hack-coin-master-apk-33-game-hack'. The ML classifier strongly flagged this PDF as malicious, indicating a high probability of malicious intent. The presence of numerous related URLs suggests a campaign distributing such lures.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/hack-coin-master-apk-33-game-hack PDF link annotation
    • http://foo.com.tw/files/roblox-maverick-shirt-free_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/free-robux-codes-no-survey-2021_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/how-to-get-free-spins-on-coin-master-2021-ios_GM406889139.pdfIn PDF document text
    • http://foo.com.tw/files/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/free-vip-server-roblox-build-a-boat-2021_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/free-spins-coin-master-links-blogspot_GM406889139.pdfIn PDF document text
    • http://foo.com.tw/files/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • http://foo.com.tw/files/robloxia-kid-free-robux_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/cheat-engine-67-roblox-robux_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/coin-master-free-spins-2021-ios_GM406889139.pdfIn PDF document text
    • http://foo.com.tw/files/free-headless-horseman-roblox-pastebin_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/cheat-roblox-vehicle-simulator_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/roblox-lvl-7-hack-trial_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • http://foo.com.tw/files/hack-coin-master-spin-android_GM406889139.pdfIn PDF document text
    • http://foo.com.tw/files/como-conseguir-monedas-infinitas-y-tiradas-de-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://foo.com.tw/files/roblox-hack-client_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/roblox-how-to-hack-welcome-to-roblox-building_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/real-free-robux-generator_GM431946152.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
font_00_sfnt_off00002d80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D80 22756 bytes
SHA-256: a4ab94c3fd97ece1790affb056bd330818dff59e02900acba5beb842428dfa3b
font_01_sfnt_off00006049.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6049 18352 bytes
SHA-256: c65772cd79ad6de597fc413f9040d6d1c9c7792bb61b50622daa601e9a3f6ed0