Malicious PDF — malware analysis report

Static analysis result for SHA-256 5070b1f5880ae390…

MALICIOUS

PDF

46.6 KB Created: 2021-06-09 07:40:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 4bdfde6663b4499a5793d652f5499feb SHA-1: a5a15a204b4d8996c2228890e5181c887c068c8c SHA-256: 5070b1f5880ae39086bd71cb7fe13da15667dfa1bd7e2b22098854f808c39faa
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 0.9832

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.tw/app/431946152/ninja-zone-roblox-money-cheat-game-hack PDF link annotation
    • https://ceranique.nl/images/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://ceranique.nl/images/how-to-get-free-robux-by-playing-a-game_GM431946152.pdfIn PDF document text
    • https://ceranique.nl/images/minecraft-realms-free-codes_GM479516143.pdfIn PDF document text
    • https://ceranique.nl/images/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://ceranique.nl/images/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://ceranique.nl/images/free-minecraft-skins-xbox-one_GM479516143.pdfIn PDF document text
    • https://ceranique.nl/images/minecraft-free-app_GM479516143.pdfIn PDF document text
    • https://ceranique.nl/images/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://ceranique.nl/images/how-do-you-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://ceranique.nl/images/how-to-get-more-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://ceranique.nl/images/games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • https://ceranique.nl/images/free-tiktok-followers-without-verification_GM835599320.pdfIn PDF document text
    • https://ceranique.nl/images/free-spins-on-coin-master-links-2021_GM406889139.pdfIn PDF document text
    • https://ceranique.nl/images/minecraft-education-edition-free-download_GM479516143.pdfIn PDF document text
    • https://ceranique.nl/images/how-to-get-free-robux-without-offers_GM431946152.pdfIn PDF document text
    • https://ceranique.nl/images/coin-master-free-spins-link-june-2021_GM406889139.pdfIn PDF document text
    • https://ceranique.nl/images/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • https://ceranique.nl/images/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • https://ceranique.nl/images/free-gold-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • https://ceranique.nl/images/cm-free-spin-link-today_GM406889139.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_off00005265.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5265 27192 bytes
SHA-256: 5a0e671cf78ae2e6354593c0dcd4ed325043128bcc37de13f2d161937f21c206
font_01_sfnt_off0000911c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x911C 19060 bytes
SHA-256: cd496c11c5b17cda384b69ca9b35ea0314ecb77d2a4a0c7c98aabdcfd23f259d

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