Malicious PDF — malware analysis report

Static analysis result for SHA-256 0eb50665a7f319ad…

MALICIOUS

PDF

43.2 KB Created: 2021-06-03 10:02:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 11251cb4153f77503371eebba2fa933b SHA-1: 208b8f379b77890c7e85b6a160d847943b46098e SHA-256: 0eb50665a7f319ad9b71aff64d4addf0b63cad8d809fbe7aaf779dc0b095a9b1
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document uses a lure related to game hacks and generators to entice users to click on embedded links. The primary link directs to a URL associated with game hacks, which is a common tactic for distributing malware or conducting phishing. While no scripts were explicitly extracted, the PDF structure and heuristics indicate malicious intent, likely to redirect users to a malicious site for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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.online/app/479516143/minecraft-com-free-game-hack PDF link annotation
    • https://vieclamjapan.com/upload/files/coin-master-free-cards-2021_GM406889139.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/coinmaster-blogspot_GM406889139.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/minecraft-noob-vs-pro-vs-hacker_GM479516143.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/promo-code-free-robux_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/free-minecraft-maps-pe_GM479516143.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/minecraft-svg-free_GM479516143.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/coin-master-facebook_GM406889139.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/play-roblox-for-free-on-google_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/free-coin-master-glitches_GM406889139.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/is-minecraft-realms-free_GM479516143.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/minecraft-free-download-mac_GM479516143.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/free-free-robux_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/free-robux-accounts-2021_GM431946152.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/free-spins-coin-master-site-wwwquoracom_GM406889139.pdfIn PDF document text
    • https://vieclamjapan.com/upload/files/pubg-uc-hack-no-verification_GM1330123889.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
stream_004_off00004fd8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FD8 24612 bytes
SHA-256: b51cd31105936a2de4be057445d42e7748072c18d5ca466d15e987cd929479f0
font_01_sfnt_off00008745.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8745 17968 bytes
SHA-256: 5bf46a6d08d3ffa684fcf656b6008ff7f2ef06acfe8c47aedee45889ac3be72f

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