Malicious PDF — malware analysis report

Static analysis result for SHA-256 6072cb0473e12efa…

MALICIOUS

PDF

45.2 KB Created: 2021-05-16 07:26:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: f22bd7dc4357205574ef8c4540de63f0 SHA-1: 2d012f93b3fd262be3712cd926573aafdd4e8f1f SHA-256: 6072cb0473e12efa76c5e15581a8360b9e2bef557b0d0d25d780cbce3efb69a6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a lure for 'Free Robux' and a call-to-action button, directing users to a suspicious URL. This pattern is indicative of a phishing or malware distribution attempt, likely initiated via spearphishing. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest it's designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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.xyz/app/431946152/free-robux-by-watching-ads-game-hack PDF link annotation
    • http://newbeginningsranch.net/images/robux-no-survey_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/free-robux-discord-servers_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/minecraft-packs-free_GM479516143.pdfIn PDF document text
    • http://newbeginningsranch.net/images/can-i-have-robux_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://newbeginningsranch.net/images/is-minecraft-bedrock-free_GM479516143.pdfIn PDF document text
    • http://newbeginningsranch.net/images/coin-master-free-daily-spins-link_GM406889139.pdfIn PDF document text
    • http://newbeginningsranch.net/images/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • http://newbeginningsranch.net/images/roblox-fun-com-robux_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/hack-coin-master-free_GM406889139.pdfIn PDF document text
    • http://newbeginningsranch.net/images/free-coin-master-links_GM406889139.pdfIn PDF document text
    • http://newbeginningsranch.net/images/minecraft-svg-free_GM479516143.pdfIn PDF document text
    • http://newbeginningsranch.net/images/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/free-robux-reddit_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://newbeginningsranch.net/images/free-roblox-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/how-to-get-free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/roblox-hack-game_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://newbeginningsranch.net/images/free-spins-and-coins-on-coin-master_GM406889139.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_003_off00004a13.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A13 28300 bytes
SHA-256: 2b54c6aac506e9a1d5dc456f8a6f7b48764f8af7ebe5827d83e1be9ebc295cf9
font_01_sfnt_off00008b01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B01 19472 bytes
SHA-256: 06b7c2c04a08988b26013261e09f65c94c24f523f4ae9df4e6f4943f7c42b6f1

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