Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a20fa215051bab5…

MALICIOUS

PDF

34.8 KB Created: 2021-06-20 00:55:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: f7fae1d7acf257e73f0af9bd0d13aebf SHA-1: 492cf4b1d9f7e2fdcbfd9dd25c3f349375f5a7cc SHA-256: 5a20fa215051bab5dc5b9b2fa0f8a09cb6bdf702351b91415851fbedcb823856
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and a lure related to 'free Robux' and 'game hacks', strongly suggesting a phishing or scam attempt. The primary URL, http://netcdn.co/app/431946152/how-to-get-free-robux-by-roblox-game-hack, is likely a redirector to a malicious site. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of malicious intent, likely to trick users into visiting a compromised site or downloading further malware.

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 http://netcdn.co/app/431946152/how-to-get-free-robux-by-roblox-game-hack PDF link annotation
    • http://library.umuslim.ac.id/repository/coinmasterdailyfreespins-com_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/free-roblox-avatar-ideas_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/coin-master-free-spins-and-coins-for-today_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/free-spin-link-of-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/free-robux-not-fake-2021_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-jackpot-hack_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-game-free-download_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/coin-master-daily-free-link_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/roblox-free-rubox_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/coin-master-app-for-free-spins_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/free-robux-real-working_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/speed-hack-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/free-roblox-glasses_GM431946152.pdfIn PDF document text
    • http://library.umuslim.ac.id//repository/coin-master-time-hack-2021_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-spin-link-free-download_GM406889139.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/free-minecraft-svg-cutting-files_GM479516143.pdfIn PDF document text
    • http://library.umuslim.ac.id/repository/coin-master-hack-spins-apk-download_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
font_00_sfnt_off0000309d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x309D 22376 bytes
SHA-256: a494ae187513ee8a2f1b42be020530a4b2e7a638e80c08825c077562da0077f4
font_01_sfnt_off00006240.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6240 19240 bytes
SHA-256: 4ff7bb4f9bcc4b563bf625befc2d697a26cdb5a4b157eb504d3f61070d4a0801

Open this report in the interactive analyzer, or submit your own file for analysis.