Malicious PDF — malware analysis report

Static analysis result for SHA-256 564d05a26e980e9b…

MALICIOUS

PDF

35.5 KB Created: 2021-06-22 02:51:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: f86d8455feb4da733bc8bc19791b5618 SHA-1: 562ad967cf58b9993c96fe7cbacd96b1fce5c037 SHA-256: 564d05a26e980e9b43f4edb75db6f61840a84b3243459848e19cb33f9e3cb5a5
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.co/app/431946152/v3rmillion-roblox-speed-hack-game-hack PDF link annotation
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/free-robux-live_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/cute-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/free-minecraft-mods_GM479516143.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/roblox-how-to-get-free-robux-september-2021_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/how-to-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/roblox-4all-cool-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/how-to-get-robux-for-free-no-scam_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/online-roblox-free-games_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/download-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/free-tiktok-followers-and-likes-no-human-verification_GM835599320.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/robux-rewards_GM431946152.pdfIn PDF document text
    • http://www.reyhanceliker.com.tr/theme/images/ckeditor/files/free-robux-apps-that-work_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_off000032a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32A8 22184 bytes
SHA-256: 0ac38dd2463d1478be244f4bbe246e773b57bf215e27e604bc979d3b1eb4bb87
font_01_sfnt_off000063e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63E0 19696 bytes
SHA-256: 6d1adba5ba3128e6e6a07a8da419b126de2ab1ec51fbc35036b6453805126763

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