Malicious PDF — malware analysis report

Static analysis result for SHA-256 76e433ed00d94bd8…

MALICIOUS

PDF

43.0 KB Created: 2021-05-13 13:01:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 48e03ddbb87b4deb929b5ac61164527b SHA-1: 17ce375ee502e24a492f734a1832d27fded7c1ec SHA-256: 76e433ed00d94bd8b86d4d5cb5fdf6f8f8b3a3a2b4f6d10641c4d27287d53ad7
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by an ML classifier. It uses brand-impersonation credential phishing. 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 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.
  • 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: https://netcdn.xyz/app/431946152/robux-win-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 https://netcdn.xyz/app/431946152/robux-win-game-hack PDF link annotation
    • https://semanasantacehegin.com/images/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://semanasantacehegin.com/images/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://semanasantacehegin.com/images/how-to-hack-coin-master-root_GM406889139.pdfIn PDF document text
    • https://semanasantacehegin.com/images/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • https://semanasantacehegin.com/images/roblox-gift-card-for-free_GM431946152.pdfIn PDF document text
    • https://semanasantacehegin.com/images/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • https://semanasantacehegin.com/images/robux-generator-no-survey_GM431946152.pdfIn PDF document text
    • https://semanasantacehegin.com/images/how-to-get-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • https://semanasantacehegin.com/images/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
    • https://semanasantacehegin.com/images/how-many-villages-are-in-coin-master_GM406889139.pdfIn PDF document text
    • https://semanasantacehegin.com/images/roblox-hack-client_GM431946152.pdfIn PDF document text
    • https://semanasantacehegin.com/images/coin-master-free-spins-without-verification_GM406889139.pdfIn PDF document text
    • https://semanasantacehegin.com/images/free-minecraft-windows-10-with-java_GM479516143.pdfIn PDF document text
    • https://semanasantacehegin.com/images/coin-master-hack-pc-cheat-engine_GM406889139.pdfIn PDF document text
    • https://semanasantacehegin.com/images/haktuts-coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • https://semanasantacehegin.com/images/free-coin-master-spins-link_GM406889139.pdfIn PDF document text
    • https://semanasantacehegin.com/images/roblox-free-item-codes_GM431946152.pdfIn PDF document text
    • https://semanasantacehegin.com/images/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://semanasantacehegin.com/images/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
    • https://semanasantacehegin.com/images/robux-money_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_off000049d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49D0 26688 bytes
SHA-256: 1598ff8b8eb23c4e451c5f2f95eafd72cd7b431846aa04513a09db36ad578650
font_01_sfnt_off00008618.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8618 18168 bytes
SHA-256: 15163bf3df79450fa72a4743c320c92040a4a8fbd9e827329353468e68532dfc

Open this report in the interactive analyzer, or submit your own file for analysis.