Malicious PDF — malware analysis report

Static analysis result for SHA-256 2eea117ba120471b…

MALICIOUS

PDF

35.1 KB Created: 2021-07-04 21:04:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 0eb4c45f27a203acb7d3aa85c3de2fa2 SHA-1: 8224c876429488c4db9b40b5bf6112c307d49157 SHA-256: 2eea117ba120471b7fa0502e922b79e49aed79cfdba82b909d83e8774e3070d9
102 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 5

  • 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.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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.tw/app/406889139/coin-master-hack-apk-2021-game-hack PDF link annotation
    • http://183.91.70.7/repository/roblox-generator_GM431946152.pdfPDF link annotation
    • http://183.91.70.7//repository/how-to-give-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://183.91.70.7//repository/ac-market-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://183.91.70.7//repository/minecraft-pe-apk-free-download_GM479516143.pdfIn PDF document text
    • http://183.91.70.7//repository/minecraft-apk-114-4_GM479516143.pdfIn PDF document text
    • http://183.91.70.7//repository/how-to-download-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • http://183.91.70.7//repository/wwwcoin-master-hack-apk_GM406889139.pdfIn PDF document text
    • http://183.91.70.7/repository/minecraft-skins-download-free_GM479516143.pdfIn PDF document text
    • http://183.91.70.7//repository/coin-master-hack-no-survey-or-verification_GM406889139.pdfIn PDF document text
    • http://183.91.70.7//repository/coin-master-game-legitimate-hack-without-signing-up-or-shareing_GM406889139.pdfIn PDF document text
    • http://183.91.70.7/repository/free-spin-coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://183.91.70.7/repository/free-roblox-gift-card-codes_GM431946152.pdfIn PDF document text
    • http://183.91.70.7/repository/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://183.91.70.7//repository/free-minecraft-java-edition_GM479516143.pdfIn PDF document text
    • http://183.91.70.7/repository/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
    • http://183.91.70.7/repository/roblox-redeem-code-free_GM431946152.pdfIn PDF document text
    • http://183.91.70.7/repository/coin-master-pet-food-hack_GM406889139.pdfIn PDF document text
    • http://183.91.70.7/repository/hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://183.91.70.7//repository/how-to-hack-coin-master-game-without-root_GM406889139.pdfIn PDF document text
    • http://183.91.70.7//repository/coin-master-hack-2021-no-survey_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
font_00_sfnt_off00003231.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3231 22864 bytes
SHA-256: dcd55766f6009b278ab6141b3e9f1b459e66879f95331798dd9a6a3c8195c864
font_01_sfnt_off00006547.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6547 18580 bytes
SHA-256: 988cffcfddd5284471d100489432d065995cf4e12f938595ec8cdf0110751cf2

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