Malicious PDF — malware analysis report

Static analysis result for SHA-256 aee0dbb541fff013…

MALICIOUS

PDF

35.1 KB Created: 2021-07-05 21:20:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: b5b7700235c008e1e2cb60cefdc43d3b SHA-1: e66ecf8ec2a25a23cce6187c39a0c201734a35b8 SHA-256: aee0dbb541fff01350fb84ff08fdaebf5a0aa831a9bff57cab6a57169307970d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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.tw/app/431946152/roblox-arsenal-hack-script-pastebin-game-hack PDF link annotation
    • http://perpustakaan.stietenggarong.ac.id/repository/free-roblox-accounts-generator_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/comment-maitre-de-dinosaure-dans-free-dino-tycoon-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/how-to-get-free-robux-website-and-group_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/500-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/when-did-people-get-a-free-business-cat-on-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/get-free-spins-link-in-coin-master_GM406889139.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/hack-fr-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/free-roblox-items-virus_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/how-to-get-free-obc-in-roblox-within-30-mins_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/roblox-legendary-swords-rpg-hacks_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/free-boho-salon-roblox-application_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/free-tiktok-likes-and-followers_GM835599320.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/roblox-generator-2021-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/instant-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/free-robux-sif_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/how-to-get-free-robux-on-your-computer_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/egg-hacker-2021-roblox_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/free-robux-working_GM431946152.pdfIn PDF document text
    • http://perpustakaan.stietenggarong.ac.id/repository/conseguir-robux-gratis-hack_GM431946152.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_off00003178.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3178 22508 bytes
SHA-256: 791e9f2e8e1dfb8dd045612a1719f70e7b2a68507f6a167f30e0103619daa1e6
font_01_sfnt_off000063de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63DE 19212 bytes
SHA-256: e66d2c3ba6a6c3d6234916ca03b9c0a1eaa22a456528aca1183a9094337079bf

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