Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1e51201982a28af…

MALICIOUS

PDF

42.5 KB Created: 2021-05-16 22:39:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 27bbb0aa06b0926399a1878e3fcf789c SHA-1: c6b5f33e4b974c222a93a794b798868c8fbe6fe6 SHA-256: f1e51201982a28af5092a9faa4692846e39f8d32ab19f1b3c94565817697f4e9
82 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs that redirect to websites offering game hacks and generators, such as 'coin-master-latest-mod-apk-free-download-game-hack'. The presence of a visual download button and the ML classifier's high confidence score indicate a malicious intent to lure users into downloading potentially harmful content. No scripts were extracted from this sample.

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/406889139/coin-master-latest-mod-apk-free-download-game-hack PDF link annotation
    • http://miriammcconnonart.com/images/free-robux-place_GM431946152.pdfIn PDF document text
    • http://miriammcconnonart.com/images/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • http://miriammcconnonart.com/images/robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://miriammcconnonart.com/images/202100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://miriammcconnonart.com/images/coin-master-2021_GM406889139.pdfIn PDF document text
    • http://miriammcconnonart.com/images/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://miriammcconnonart.com/images/robux-today_GM431946152.pdfIn PDF document text
    • http://miriammcconnonart.com/images/free-links-coin-master_GM406889139.pdfIn PDF document text
    • http://miriammcconnonart.com/images/how-to-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://miriammcconnonart.com/images/free-robux-generator-codes_GM431946152.pdfIn PDF document text
    • http://miriammcconnonart.com/images/free-spins-link-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://miriammcconnonart.com/images/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://miriammcconnonart.com/images/coin-master-hack-no-verification-no-signup_GM406889139.pdfIn PDF document text
    • http://miriammcconnonart.com/images/free-roblox-templates_GM431946152.pdfIn PDF document text
    • http://miriammcconnonart.com/images/real-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://miriammcconnonart.com/images/freespinandcoin-blogspot_GM406889139.pdfIn PDF document text
    • http://miriammcconnonart.com/images/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • http://miriammcconnonart.com/images/best-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://miriammcconnonart.com/images/coin-master-gift-link_GM406889139.pdfIn PDF document text
    • http://miriammcconnonart.com/images/coin-master-hack-ios-app_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_003_off00004a0f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A0F 25712 bytes
SHA-256: e3bb84d914197f6ac5c7222e2116b76b05d89c2a505220618d09b14def5f2506
font_01_sfnt_off000082e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82E1 18636 bytes
SHA-256: e64e7c68c640d7a76083afd8b9b2f812e6e5e3722298a9911c500c059d2c6a5e

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