Malicious PDF — malware analysis report

Static analysis result for SHA-256 16c535a1e965db8c…

MALICIOUS

PDF

46.7 KB Created: 2021-05-17 08:48:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 0980c5def5b049cda497cb81ea41b669 SHA-1: 13b5acc3f3110b767ad8b0014c89b5761da336b0 SHA-256: 16c535a1e965db8c6b0dcf6ad177aec2b2baf8e1fe0e84c72282faaea3251860
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

This PDF document impersonates Netflix to lure users into clicking a link for free Robux or game hacks. The embedded link redirects to malicious domains such as netcdn.xyz and sdg-trade.com, which likely host further malicious content or phishing pages. No scripts were extracted, but the document's structure and embedded URLs strongly indicate a credential phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8948

Heuristics 4

  • 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.xyz/app/431946152/huskybus.com-free-robux-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.xyz/app/431946152/huskybus.com-free-robux-game-hack PDF link annotation
    • https://sdg-trade.com/images/free-account-roblox-2021_GM431946152.pdfIn PDF document text
    • https://sdg-trade.com/images/how-to-get-robux-easy_GM431946152.pdfIn PDF document text
    • https://sdg-trade.com/images/minecraft-pe-hacked-client-download_GM479516143.pdfIn PDF document text
    • https://sdg-trade.com/images/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://sdg-trade.com/images/complete-offers-for-robux_GM431946152.pdfIn PDF document text
    • https://sdg-trade.com/images/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://sdg-trade.com/images/roblox-rewards-site_GM431946152.pdfIn PDF document text
    • https://sdg-trade.com/images/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://sdg-trade.com/images/how-to-hack-roblox-passwords_GM431946152.pdfIn PDF document text
    • https://sdg-trade.com/images/claim-robux_GM431946152.pdfIn PDF document text
    • https://sdg-trade.com/images/coin-master-daily-free-spins-hack_GM406889139.pdfIn PDF document text
    • https://sdg-trade.com/images/wwwcoin-master-hack-game-download_GM406889139.pdfIn PDF document text
    • https://sdg-trade.com/images/daily-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • https://sdg-trade.com/images/earn-robux-websites_GM431946152.pdfIn PDF document text
    • https://sdg-trade.com/images/robuxglobalcom-no-verification_GM431946152.pdfIn PDF document text
    • https://sdg-trade.com/images/coin-master-free-spins-generator-no-human-verification_GM406889139.pdfIn PDF document text
    • https://sdg-trade.com/images/coin-master-cards-hack_GM406889139.pdfIn PDF document text
    • https://sdg-trade.com/images/minecraft-free-download-android_GM479516143.pdfIn PDF document text
    • https://sdg-trade.com/images/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://sdg-trade.com/images/best-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A1F 28308 bytes
SHA-256: 23fa3c5275eae5b6a2289f43250bf6bf8f3899e20c0caf8187799c6627038ae8
font_01_sfnt_off00008965.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8965 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off00009314.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9314 18688 bytes
SHA-256: 6add98f93d6464e4673e157e466f8eac90a499b9ef5784f234ada041ea0169f0

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