PDF static analysis report

Static analysis result for SHA-256 55b1451e5b47b355…

SUSPICIOUS

PDF

45.4 KB Created: 2021-05-13 11:50:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 4888df09f3ba52d1c8ec1614a3abc2c0 SHA-1: 2119ebec3486d03ae177c0f0b96b04699b1d2580 SHA-256: 55b1451e5b47b355c7c6983c63d4fd993876a12aa452dfef010bceba6d409898
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and a prominent link in its body text, all related to obtaining free in-game currency or items for popular games like Coin Master and Roblox. The ML classifier strongly flagged this PDF as malicious, and the presence of these lures suggests a phishing or scam attempt. No scripts were extracted from this sample, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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/how-to-get-100-free-spins-on-coin-master-game-hack PDF link annotation
    • https://library.univthamrinaka.com/repository/real-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://library.univthamrinaka.com/repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://library.univthamrinaka.com/repository/roblox-free-items_GM431946152.pdfIn PDF document text
    • https://library.univthamrinaka.com/repository/coin-master-free-spins-and-chips_GM406889139.pdfIn PDF document text
    • https://library.univthamrinaka.com/repository/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • https://library.univthamrinaka.com/repository/coin-master-free-coins-link-facebook_GM406889139.pdfIn PDF document text
    • https://library.univthamrinaka.com/repository/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • https://library.univthamrinaka.com/repository/minecraft-apk-download-v1-144-2-free_GM479516143.pdfIn PDF document text
    • https://library.univthamrinaka.com/repository/how-do-i-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://library.univthamrinaka.com/repository/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • https://library.univthamrinaka.com/repository/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • https://library.univthamrinaka.com/repository/coin-master-free-shield-link_GM406889139.pdfIn PDF document text
    • https://library.univthamrinaka.com/repository/robuxmatch-com-free-robux_GM431946152.pdfIn PDF document text
    • https://library.univthamrinaka.com/repository/martian-lettuce-coin-master-free_GM406889139.pdfIn PDF document text
    • https://library.univthamrinaka.com/repository/free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://library.univthamrinaka.com/repository/youtube-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://library.univthamrinaka.com/repository/free-robux-today_GM431946152.pdfIn PDF document text
    • https://library.univthamrinaka.com/repository/coin-master-game-hunter_GM406889139.pdfIn PDF document text
    • https://library.univthamrinaka.com/repository/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
    • https://library.univthamrinaka.com/repository/coin-master-claim-spins_GM406889139.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c63.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C63 25276 bytes
SHA-256: 91fe924030b0da0e303ef53d54f39923cd44a4e4e57baaf7469001bc4e3764cd
font_01_sfnt_off0000853d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x853D 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off00008eef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EEF 18328 bytes
SHA-256: 118bed2ee52f9a365e328bc160c828b8a450fef4f79d7a715d30d8386aa97d79

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