PDF static analysis report

Static analysis result for SHA-256 e4816d93605d9686…

SUSPICIOUS

PDF

49.8 KB Created: 2021-06-10 22:45:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 0e513cab45bc02bb4d4afe4b25ba593e SHA-1: e9914ed1ac92324f27329833a20dc82151a83924 SHA-256: e4816d93605d9686d85919cea3352de72f9764cde4b381ae0c6b7dc1daca4cb6
50 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures related to obtaining free Robux and uses urgency and a call-to-action to encourage a download. The ML classifier flagged this PDF as malicious with high confidence. Multiple URLs point to suspicious PDF files hosted on external domains, likely serving as the second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9871

Heuristics 4

  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.tw/app/431946152/how-to-get-robux-for-free-2021-on-phone-game-hack PDF link annotation
    • http://aviaprofsoyuz.info/images/minecraft-free-download-unblocked_GM479516143.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/coin-master-fun-hack-online_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/how-to-get-free-robux-without-offers_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/coin-master-hack-game-download-mod-apk_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/master-coin-hack_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/hacks-for-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/free-robux-ad_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/play-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/coin-master-tricks_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/roblox-dominus-free_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/money-hack-adopt-me-roblox_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/oginject-co_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/coin-master-hack-apk-july-2021_GM406889139.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/robux-cheat-codes-2021_GM431946152.pdfIn PDF document text
    • http://aviaprofsoyuz.info/images/how-to-get-free-robux-apk_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_004_off00004fe6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FE6 34216 bytes
SHA-256: 636b408af2406ef6233a76be44a2dd8bfce385d951e895accd5e00405ac10a11
font_01_sfnt_off00009e2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E2C 19004 bytes
SHA-256: 9896a47af2129d9499eb4e2bb9a7c262ba34bfc56eeb5f6bb5c8399041998bdb

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