Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae6fb938a32eba89…

MALICIOUS

PDF

42.1 KB Created: 2021-04-30 01:32:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 0854934fae7c573605ae93a6a4ff9ba5 SHA-1: 0a67d3b197f44f2b6fa897c62dc4339ec7087311 SHA-256: ae6fb938a32eba89e629f8a99178225bf0cdaf869367721591b98c6c619f79da
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are related to 'Robux hacks' or 'game hacks', indicating a lure for users to download potentially malicious files. The presence of a 'Password-protected archive handoff' heuristic suggests that the downloaded content may be encrypted, a common tactic to evade security scans. While no scripts were directly extracted, the PDF's structure and embedded URIs point towards a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

Heuristics 4

  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/botton-complex-free-robux-game-hack PDF link annotation
    • https://www.malesse.com/ckfinder/userfiles/files/phoenix-signs-hack-roblox-account.pdfIn PDF document text
    • https://www.malesse.com/ckfinder/userfiles/files/descargar-hack-de-jailbreak-roblox.pdfIn PDF document text
    • https://www.malesse.com/ckfinder/userfiles/files/google-how-do-i-get-free-robux-on-roblox.pdfIn PDF document text
    • https://www.malesse.com/ckfinder/userfiles/files/hacking-my-roomates-roblox-account.pdfIn PDF document text
    • https://www.malesse.com/ckfinder/userfiles/files/roblox-catalog-hacks-thumbnail.pdfIn PDF document text
    • https://www.malesse.com/ckfinder/userfiles/files/free-robux-hack-no-verification-or-survey-2021.pdfIn PDF document text
    • https://www.malesse.com/ckfinder/userfiles/files/island-royale-roblox-free.pdfIn PDF document text
    • https://www.malesse.com/ckfinder/userfiles/files/roblox-dayz-cheat-code.pdfIn PDF document text
    • https://www.malesse.com/ckfinder/userfiles/files/robux-hack-2021-no-survey.pdfIn PDF document text
    • https://www.malesse.com/ckfinder/userfiles/files/roblox-free-drawing.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_off000044e5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x44E5 26200 bytes
SHA-256: c1a487e5b5bba32e7b1fe7d1f57835b0cc5be0b240eac8de5682247a233fa7d8
font_01_sfnt_off00008206.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8206 18628 bytes
SHA-256: 542d78be06d8dcd53de82037a8a1e95f6ef0c6cab03c41547f7c824f241fee44

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