Malicious PDF — malware analysis report

Static analysis result for SHA-256 67b42e3ab4f80a75…

MALICIOUS

PDF

43.3 KB Created: 2021-05-16 15:55:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: fb3f651e0badb1027eb0e7b6924f2334 SHA-1: 769d83303a9494d9fc7ffcd42bcc5803c84813c5 SHA-256: 67b42e3ab4f80a754c7a70199a13745fc68e68b28c0b52e4f2b179bd616a0bf7
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, disguised as 'free generators' and 'game hacks'. The document body and embedded URLs strongly suggest a lure to trick users into visiting malicious sites, likely for credential harvesting or to download further malicious content. No scripts were extracted, but the presence of malicious links and the ML classification indicate a high likelihood of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/earn-robux-game-hack In PDF document text
    • http://newbeginningsranch.net/images/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
    • http://newbeginningsranch.net/images/free-robux-real_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/free-robux-codes-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/coin-master-tips_GM406889139.pdfIn PDF document text
    • http://newbeginningsranch.net/images/free-coin_GM406889139.pdfIn PDF document text
    • http://newbeginningsranch.net/images/free-robux-discord-servers_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/coin-master-200-spin-link_GM406889139.pdfIn PDF document text
    • http://newbeginningsranch.net/images/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/free-spin-links-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://newbeginningsranch.net/images/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://newbeginningsranch.net/images/free-minecraft-codes_GM479516143.pdfIn PDF document text
    • http://newbeginningsranch.net/images/getrobux-info_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/free-robux-images_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/coin-master-free-coins-and-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://newbeginningsranch.net/images/xray-hack_GM479516143.pdfIn PDF document text
    • http://newbeginningsranch.net/images/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/free-robux-app-real_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://newbeginningsranch.net/images/no-verification-coin-master-hack_GM406889139.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
font_00_sfnt_off000049c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49C4 27228 bytes
SHA-256: 3fed135302c2c9872947709d5018d045b701dc4ddcbe5ca0f6676973bd6da4e8
font_01_sfnt_off0000879d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x879D 18076 bytes
SHA-256: 211a529ae6a0212354e2c8faa3e6424c15162b595112409e99389753daabd842

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