Malicious PDF — malware analysis report

Static analysis result for SHA-256 58bfc05c0b9fce3a…

MALICIOUS

PDF

35.0 KB Created: 2021-06-18 18:05:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: b95f1fee79dd6c985f3954696ac65a27 SHA-1: 4970a2e2db09de79c31d3d38d3502ddf88ed85d4 SHA-256: 58bfc05c0b9fce3ad1734e1de90db6c98cf39f53a168ea10bb41243995107a38
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious Link

This PDF document was flagged as malicious by an ML classifier. It uses brand-impersonation credential phishing. The file 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

  • 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: http://netcdn.co/app/431946152/youtube.com-ultraw-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 http://netcdn.co/app/431946152/youtube.com-ultraw-free-robux-game-hack PDF link annotation
    • https://javisintlmedia.com/images/roblox-free-vip-servers-mad-city_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://javisintlmedia.com/images/coin-master-free-spins-link-october-2021_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/coin-master-game-hack_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://javisintlmedia.com/images/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/coin-master-free-spins-23-march-2021_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/coin-master-free-spinv1-0apkpure-com-apk_GM406889139.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-roblox-injector_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-templates-roblox_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/how-to-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/can-i-play-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-robux-android_GM431946152.pdfIn PDF document text
    • https://javisintlmedia.com/images/free-minecraft-mods-for-pc_GM479516143.pdfIn PDF document text
    • https://javisintlmedia.com/images/how-do-you-get-free-robux_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
font_00_sfnt_off00002fc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FC0 22548 bytes
SHA-256: 1ca883b5fb54ce6ef9c82d2ef275376901298db9db17c1cb7ec892026413043a
font_01_sfnt_off0000624a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x624A 19548 bytes
SHA-256: 0a8733ac89ce3e95b941b1312655241a39d4df374e01d1addad69676f79c8288

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