Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f7e96b916af744f…

MALICIOUS

PDF

34.9 KB Created: 2021-07-05 18:27:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: c17baf1d57672c7e086971c4cb6d8b63 SHA-1: dcef1b62970bd4224d067d94861d0239121fa945 SHA-256: 6f7e96b916af744f09eb62e0d61ccc42c6aa7c0ad07429b839b967796d0274d3
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/free-robux-generator-for-roblox-2021-game-hack PDF link annotation
    • https://puslitbang.kejaksaan.go.id/new/public/ckfinder/userfiles/files/how-many-levels-in-coin-master_GM406889139.pdfIn PDF document text
    • https://puslitbang.kejaksaan.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://puslitbang.kejaksaan.go.id/new/public/ckfinder/userfiles/files/coin-master-heaven-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://puslitbang.kejaksaan.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://puslitbang.kejaksaan.go.id/new/public/ckfinder/userfiles/files/roblox-games-for-free-for-you-to-play_GM431946152.pdfIn PDF document text
    • https://puslitbang.kejaksaan.go.id/new/public/ckfinder/userfiles/files/minecraft-svg-free_GM479516143.pdfIn PDF document text
    • https://puslitbang.kejaksaan.go.id/new/public/ckfinder/userfiles/files/roblox-free-no-download_GM431946152.pdfIn PDF document text
    • https://puslitbang.kejaksaan.go.id/new/public/ckfinder/userfiles/files/minecraft-free-online-unblocked_GM479516143.pdfIn PDF document text
    • https://puslitbang.kejaksaan.go.id/new/public/ckfinder/userfiles/files/free-tiktok-fans-no-human-verification-or-downloading-apps_GM835599320.pdfIn PDF document text
    • https://puslitbang.kejaksaan.go.id/new/public/ckfinder/userfiles/files/free-robux-no-human-verification-no-download-no-survey-2021_GM431946152.pdfIn PDF document text
    • https://puslitbang.kejaksaan.go.id/new/public/ckfinder/userfiles/files/free-promo-codes-for-robux_GM431946152.pdfIn PDF document text
    • https://puslitbang.kejaksaan.go.id/new/public/ckfinder/userfiles/files/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • https://puslitbang.kejaksaan.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://puslitbang.kejaksaan.go.id/new/public/ckfinder/userfiles/files/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • https://puslitbang.kejaksaan.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-robux-on-phone-2021_GM431946152.pdfIn PDF document text
    • https://puslitbang.kejaksaan.go.id/new/public/ckfinder/userfiles/files/roblox-projet-jojo-hack-gui_GM431946152.pdfIn PDF document text
    • https://puslitbang.kejaksaan.go.id/new/public/ckfinder/userfiles/files/free-minecraft-gift-card_GM479516143.pdfIn PDF document text
    • https://puslitbang.kejaksaan.go.id/new/public/ckfinder/userfiles/files/roblox-catalog-free_GM431946152.pdfIn PDF document text
    • https://puslitbang.kejaksaan.go.id/new/public/ckfinder/userfiles/files/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • https://puslitbang.kejaksaan.go.id/new/public/ckfinder/userfiles/files/download-roblox-free-latest-version_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_off000031fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31FE 21956 bytes
SHA-256: 87e2d5e39b5d6216e34a6b6b1963b8e619927dee5aa4583c4725bb6383f55736
font_01_sfnt_off00006266.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6266 19296 bytes
SHA-256: 1c5b5ef18537994d2b9d4bcfadda653dfd61b801510ea22c778e1317dc9212ff

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