Malicious PDF — malware analysis report

Static analysis result for SHA-256 b58746eaa87717fd…

MALICIOUS

PDF

34.8 KB Created: 2021-07-03 18:36:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22
MD5: d84f15e2e0f911fc3d07137d1ee7d026 SHA-1: f2d61aeed4070d77855e1e348636074743a8ba39 SHA-256: b58746eaa87717fd7ac28b9141d5d827a3faf08460e35419d829f3177b6e1086
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/479516143/minecraft-free-download-chromebook-game-hack PDF link annotation
    • https://digilib.stimlog.ac.id/repository/roblox-free-gamepass-scriopt_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/coin-master-free-cards-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-hack-games-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-get-free-robux-apple-ipad_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/how-to-get-free-robux-on-roblox-by-playing-games_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-minecraft-bedrock-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-no-virus_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/escape-mario-area-51-roblox-game-download-free_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/roblox-free-vip-server_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-do-u-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/rise-of-nations-cheats-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-female-outfits-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/minecraft-book-collection_GM479516143.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/hack-for-boobs-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-hacker-kolorowanki-do-druku_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-spins-on-coin-masters_GM406889139.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-gfx-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-codes-for-roblox-clothes_GM431946152.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_off00002f82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F82 22800 bytes
SHA-256: d1fe6bb8601fed7146923fec64d98302272ba4f5600d675e74423a89116f7d47
font_01_sfnt_off0000628a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x628A 19332 bytes
SHA-256: 4d7e6a8ad3ab477c7586955708d040336cfd9a5a5d373cde419f68ec141d9187

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