PDF static analysis report

Static analysis result for SHA-256 4058d42f521d1fd2…

SUSPICIOUS

PDF

40.3 KB Created: 2021-04-28 11:19:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: a9a63428b6094ae1fa7c979ba6911fb5 SHA-1: cf9a8bf2e079f96718384d526b2df6b56bb2178c SHA-256: 4058d42f521d1fd2cc946076688450cfef10a87abd978fe11fd7c229d3e298c2
50 Risk Score

Malware Insights

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

The document uses urgency and a call-to-action lure related to 'Roblox Free Robux' to trick users into clicking a malicious link. The ML classifier strongly flagged this PDF as malicious, and the embedded URLs point to suspicious domains hosting files related to game hacks. The primary goal appears to be directing the user to download a payload disguised as a game hack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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.xyz/app/431946152/roblox-free-robux-free-download-game-hack PDF link annotation
    • https://lib-stie.yai.ac.id/repository/roblox-phantom-forces-all-guns-free.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-hack-on-roblox-jail-breaker.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-robux-3-pastbincom.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-2021-hack.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/edm-reaper-free-robux-april-2021.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-get-free-robux-no-virus.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-robux-generator-no-verification-required.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/hacks-for-roblox-the-purge.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-do-you-earn-free-robux.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-robux-promo-codes-website.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_off00004054.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4054 25020 bytes
SHA-256: 30b8bb9a5b4da6eea2efea0eb044588ee20600104e24e7834d7400baf365da8a
font_01_sfnt_off000079fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79FB 18824 bytes
SHA-256: 5764fc551a800848c66b02cba36fa4c7b925fc7eca5ca578409ac778195511b7

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