Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d89260bdd660333…

MALICIOUS

PDF

31.6 KB Created: 2021-06-28 18:21:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 5f2e37f6af91c9496e0288085bc0a890 SHA-1: a979945c4da63c9ec5138dff21bb5a0ec485f5f8 SHA-256: 1d89260bdd66033385b56bd6e4dc8744a99487d0047cfac467df11de346a9585
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a call-to-action to access 'free dances on Roblox' and 'Robux generator', which is a common lure for users seeking game cheats. The primary link, http://netcdn.co/app/431946152/free-dances-on-roblox-game-hack, likely leads to a malicious site that distributes malware or conducts phishing. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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-dances-on-roblox-game-hack PDF link annotation
    • https://duoledesign.com/image/data/files/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/roblox-robux-pastebin-hack-2021_GM431946152.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/roblox-free-walk-animation_GM431946152.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/free-roblox-accounts-that-work_GM431946152.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/how-to-make-custom-api-for-roblox-hack_GM431946152.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/roblox-free-cool-outfits_GM431946152.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/coin-master-34-6-hack_GM406889139.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/minecraft-free-download-windows_GM479516143.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/roblox-free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/coin-master-free-spins-hack-link_GM406889139.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/free-minecraft-worlds_GM479516143.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/how-to-get-free-coins-in-coin-master-game_GM406889139.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/free-minecraft-domain_GM479516143.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/minecraft-pe-hacks_GM479516143.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/roblox-free-items-glitch_GM431946152.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/free-spins-coin-master-2021-glitch_GM406889139.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/coin-master-hack-september-2021_GM406889139.pdfIn PDF document text
    • https://duoledesign.com/image/data/files/roblox-premium-account-free_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_off0000287b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x287B 21496 bytes
SHA-256: a458ffb857cf15b78611ea91569638a4abcc4b7f06f8a573c8703e5d688b683b
font_01_sfnt_off00005761.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5761 18816 bytes
SHA-256: 103a59e07e5e4945309869d31242f149fc202d98a3c43144e817aa0ace6d1550

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