Malicious PDF — malware analysis report

Static analysis result for SHA-256 1399463d8cfcb40f…

MALICIOUS

PDF

46.4 KB Created: 2021-06-11 04:21:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: a4eab2afe86b3c76e4a5a9128aecb4e3 SHA-1: 403df975dd670ed0efed51088b5659d6eb1c50b5 SHA-256: 1399463d8cfcb40fd938a842c22624ccf2a1cb2fce30ff76e635f8a421e7bea8
122 Risk Score

Malware Insights

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

This PDF document employs a game hack lure, impersonating brands like Netflix, to trick users into clicking a link. The primary link redirects to a site offering 'Roblox Boog Booga Hack Le Miyeur', which is likely a phishing or malware distribution page. The document's structure and embedded links strongly suggest an attempt to lead the user to a malicious external resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

Heuristics 5

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.tw/app/431946152/roblox-boog-booga-hack-le-miyeur-game-hack.
  • 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.tw/app/431946152/roblox-boog-booga-hack-le-miyeur-game-hack PDF link annotation
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-gain-more-spins-on-coin-master-for-free_GM406889139.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/roblox-hack-generator_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-robux-without-offers_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-daily-rewards_GM406889139.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/roblox-2021-how-to-cheat-in-fencing_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-robux-safe_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/fbchampion_GM406889139.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/100-free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-gold-cards-hack-2021_GM406889139.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/minecraft-free-edition_GM479516143.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/minecraft-reach-hack_GM479516143.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-robux-rewards_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/is-minecraft-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/coin-master-rewards-free-spins_GM406889139.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/como-conseguir-monedas-infinitas-y-tiradas-de-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-pet-snacks-coin-master_GM406889139.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • https://pertanian.denpasarkota.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-roblox-items_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_off000052f7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52F7 26256 bytes
SHA-256: f20a550b391205219f68d36c316d1cc6f27885e557898ae2e4975f3fa7f1d7db
font_01_sfnt_off00009073.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9073 19104 bytes
SHA-256: 3b4b540e03358b152c84868af2f9174916ae08c3920973eecaa4cf1c66fb9978

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