Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3f58a9c2ebc4402…

MALICIOUS

PDF

46.0 KB Created: 2021-06-04 03:04:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: d84acf67eb07b2ccaf745c066040f065 SHA-1: cccc78c8f2b6272f44accb3673d09339a03a255f SHA-256: d3f58a9c2ebc4402a4280ff33392770e10b302f28c10b5965b1136c3c6e559a8
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a lure for game hacks and free generators, directing users to a malicious URL. The ML classifier strongly indicates maliciousness, and the PDF URI heuristic confirms the presence of a suspicious external link. The document's purpose is to trick users into downloading potentially malicious files by exploiting their interest in free game-related content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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 https://netcdn.online/app/479516143/how-to-get-minecraft-windows-10-for-free-2021-game-hack PDF link annotation
    • https://library.sman1berau.sch.id/repository/wurst-client-112-2_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-free-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/online-coin-master-hack-here_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-get-free-tiktok-followers-without-human-verification_GM835599320.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-robux-apk_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/wwwcoin-master-hack-apk_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-2021-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/watch-ads-for-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/fighting-free-card-coin-master_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/minecraft-texture-packs-free-download_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-fun-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-spin-and-coins-free_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-coins-coin-master-haktuts_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/can-you-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-hack-version-download-2021_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-robux-without-survey_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-hack-ios-no-human-verification_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-premium-free_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
stream_004_off00005486.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5486 26224 bytes
SHA-256: 5ba0c433570fae194e3726d7d372fe5bfbc607deada09c2cc88200ef33d9f9c6
font_01_sfnt_off00008fed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FED 18648 bytes
SHA-256: 354bb2c2c4fae14b5c7df711c8f5a389dfe67cd832e4a835714c7b2f7ea7fa4d

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