Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5877e0a6b523bcc…

MALICIOUS

PDF

41.7 KB Created: 2021-05-15 01:34:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: aa5a517f53796f09bf4ae4c0d732491c SHA-1: b03b8b6907e12622c98151d10898a46e0548e5f3 SHA-256: f5877e0a6b523bccf58c0a61702805b4f8a43591e5d91a201f064cc834b4c3c8
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 0.9971

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.xyz/app/479516143/minecraft-bedrock-edition-hacks-game-hack PDF link annotation
    • https://hbpbenin.com/images/coin-master-hack-programmers_GM406889139.pdfIn PDF document text
    • https://hbpbenin.com/images/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • https://hbpbenin.com/images/coin-master-apk-hack-mod-download_GM406889139.pdfIn PDF document text
    • https://hbpbenin.com/images/http-coin-master-hack-club_GM406889139.pdfIn PDF document text
    • https://hbpbenin.com/images/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://hbpbenin.com/images/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • https://hbpbenin.com/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://hbpbenin.com/images/wurst-115-2_GM479516143.pdfIn PDF document text
    • https://hbpbenin.com/images/how-to-make-clothes-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://hbpbenin.com/images/how-many-levels-in-coin-master_GM406889139.pdfIn PDF document text
    • https://hbpbenin.com/images/coin-master-mod-apk-latest-version-free-download_GM406889139.pdfIn PDF document text
    • https://hbpbenin.com/images/coin-master-free-coins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://hbpbenin.com/images/easy-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://hbpbenin.com/images/minecraft-java-edition-free-download_GM479516143.pdfIn PDF document text
    • https://hbpbenin.com/images/get-me-free-robux_GM431946152.pdfIn PDF document text
    • https://hbpbenin.com/images/hack-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://hbpbenin.com/images/www-robux_GM431946152.pdfIn PDF document text
    • https://hbpbenin.com/images/free-minecraft-client_GM479516143.pdfIn PDF document text
    • https://hbpbenin.com/images/but-link-says-free-robux_GM431946152.pdfIn PDF document text
    • https://hbpbenin.com/images/robux-free-gift-card_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_off00004978.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4978 24712 bytes
SHA-256: c76dfc45c4a9e6e785a6f29582b9f2f03775f1c63fdc70d8d22a538a7762d814
font_01_sfnt_off000080a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80A2 18268 bytes
SHA-256: ab11a404ecd1e05d7423e813f114c97ddc1b622607c5cfcfecdb5803810a7c8b

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