Malicious PDF — malware analysis report

Static analysis result for SHA-256 46c7847a845a780f…

MALICIOUS

PDF

35.8 KB Created: 2021-06-27 20:31:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 565b5e06483e745777ccfde76b60619c SHA-1: 4eea22b7722493cd7c553d3ec510cde967fc6325 SHA-256: 46c7847a845a780f448bee842e8b33f53210d61d10992e447a15852857204422
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple lures related to game hacks and free currency, directing users to a suspicious URL. The ML classifier strongly indicates maliciousness, and the PDF's structure and embedded URIs suggest it's designed to redirect users to potentially malicious content or phishing sites. No scripts were extracted, but the overall pattern is consistent with a social engineering lure to facilitate further compromise.

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/free-robux-today-domino-game-hack PDF link annotation
    • https://akbidprimahusada.ac.id/elibrary/repository/how-to-buy-free-gamepass-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/1x1x1x1-roblox-id_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/free-t-shirt-roblox_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/how-to-hack-robloxs-website_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/coin-master-daily-free-spins-link-today-twitter_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/free-pet-food-for-coin-master_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/coin-master-free-link-app_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/hacks-para-tener-robux_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/coin-master-200-spin-link_GM406889139.pdfIn PDF document text
    • https://akbidprimahusada.ac.id/elibrary/repository/how-to-install-minecraft-for-free-on-ios_GM479516143.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/coin-master-firebird-card-free_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/free-robux-android_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/coin-master-apk-mod-free-download_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/coin-master-collect-today-free-spin_GM406889139.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/hacks-for-rogoul-roblox-pllz-teach-me_GM431946152.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary/repository/minecraft-bedrock-free_GM479516143.pdfIn PDF document text
    • http://akbidprimahusada.ac.id/elibrary//repository/www-coin-master-hack-tk_GM406889139.pdfIn PDF document text
    • https://www.roblox.com/.IIn 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_off0000343b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x343B 22140 bytes
SHA-256: 33b6bfac984124f621ed14f99cbb9ae93a503efddd587a1e0c0041b63e762007
font_01_sfnt_off0000656a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x656A 19616 bytes
SHA-256: 6c31a4cbcbb7821b78dab35af74206fc0aecec488590028e32dc204e6f08e7d2

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