Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f160f32329ad580…

MALICIOUS

PDF

35.0 KB Created: 2021-06-18 02:30:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 6b907936fd78c4c9c4bb2418ba0cdf6e SHA-1: 8f5933613389ac2c2e256e00366bb80f00064051 SHA-256: 8f160f32329ad580ce4a86022fbb11cf7f75b989933781f785b181ece5b86502
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple embedded links, including one specifically identified as a 'game hack' lure. These links redirect to external websites, such as http://netcdn.co/app/431946152/cheat-tool-roblox-game-hack, which are likely intended to host malicious payloads or facilitate further compromise. The ML classifier also strongly indicated maliciousness.

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/cheat-tool-roblox-game-hack PDF link annotation
    • http://opac.disarpus.surakarta.go.id/repository/minecraft-free-minecraft_GM479516143.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/instagram-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/is-minecraft-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-robux-co_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/roblox-hack-august-2021_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/noob-vs-pro-vs-hacker-vs-god-minecraft_GM479516143.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-roblox-hacker-app_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/uprobuxcom-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-robux-with-human-verifaction_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/hack-para-tener-robux-gratis-2021_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/cheat-roblox-big-paint-ball_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/coin-master-free-400-spin-link_GM406889139.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-100-robux_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/roblox-dragon-ball-rage-hack-december-2021_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-star-codes-roblox_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/how-to-hack-coin-master-using-es-file_GM406889139.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/free-robux-safe_GM431946152.pdfIn PDF document text
    • http://opac.disarpus.surakarta.go.id/repository/coin-master-free-spins-android_GM406889139.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_off000030f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30F2 22856 bytes
SHA-256: 7dda1000784fa6ca563fc975f212b5d7fedfddac6fc10b4ea2fc7e1d001194c8
font_01_sfnt_off00006473.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6473 18756 bytes
SHA-256: 97ff43bb615f0245fbc4330f3372d75714288fde699f68f1bbc0be082bc3e228

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