Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b4216b8c0f984f3…

MALICIOUS

PDF

34.3 KB Created: 2021-06-30 03:51:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 7abedea33acc5cc18530fd211a87ca6b SHA-1: 502a11e58526a7db863727162fe4dc5e931e2c4d SHA-256: 2b4216b8c0f984f3f3e93d53a6339efc36cc0bb9be5efa42d62b6156cda3d5ba
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirector infrastructure, specifically advertising game hacks and generators. The primary lure URL is http://netcdn.co/app/431946152/how-to-hack-roblox-bee-swarm-simulator-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or malware distribution attempt, likely initiated via a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/how-to-hack-roblox-bee-swarm-simulator-game-hack In PDF document text
    • https://www.xenonsvjetla.com/files/admin-hack-roblox-stat-chage_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-robux-2021-download_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/wurst-download_GM479516143.pdfIn PDF document text
    • http://xenonsvjetla.com/files/how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/roblox-survivalist-hack_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-roblox-money-hacks_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/how-to-get-free-clothes-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-rewards-free-spins_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/how-to-become-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/free-daily-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/how-to-get-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • http://xenonsvjetla.com/files/kazoks-roblox-hack-script_GM431946152.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://xenonsvjetla.com/files/como-hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/coin-master-hack-version-apk-download_GM406889139.pdfIn PDF document text
    • https://www.xenonsvjetla.com/files/roblox-booga-booga-hack_GM431946152.pdfIn PDF document text
    • http://xenonsvjetla.com/files/daily-coin-master-free-spins_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_off0000311a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x311A 21436 bytes
SHA-256: eeb3da53d3101ba1b41149f784ee6f514044b559e898b60c1e07bc86c86494f6
font_01_sfnt_off00005ff1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FF1 19444 bytes
SHA-256: e5254e71412e98ac363c5e4245c173253ded6b095025815f048028c0b18db30c

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