Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4c72116f87cba7b…

MALICIOUS

PDF

42.5 KB Created: 2021-05-12 00:24:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 8d2ec3570a54c030ccf4f9ee34923168 SHA-1: 6d2687fd8b081c4c10a1b87096b0205e74c1b248 SHA-256: e4c72116f87cba7b2990a55ab5f4d1e1a66b4f79072b74e04e412c03082aada4
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF contains a lure for game hacks and impersonates Microsoft to trick users into clicking a malicious link. The link redirects to a URL associated with game hacking content, indicating a phishing or scam attempt. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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/avatar-the-last-airbender-roblox-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/avatar-the-last-airbender-roblox-game-hack PDF link annotation
    • http://repository.unla.ac.id/repository/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/how-to-hack-coin-master-game-without-root_GM406889139.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/free-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/robloxhacks_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/how-to-get-roblox-premium-for-free_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/http-bit-ly-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/earn-robux-today_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/coin-master-hack-android_GM406889139.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/free-robux-generator-codes_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/free-robux-survey_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/legitimate-coin-master-free-spins-apk_GM406889139.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/robux-com-free_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/coin-master-games-download-free_GM406889139.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/coin-master-free-rare-cards_GM406889139.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/safe-hack-for-coin-master-android_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_off000049a1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49A1 25184 bytes
SHA-256: 75de6f568f27c1bcca54307750f43811e1fe452c790d79f5524c4fc8b911d35b
font_01_sfnt_off00008261.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8261 18692 bytes
SHA-256: f66b47eed37cd3b132d5bde49a39db92434aeefb3a2333eebc70f5590a2134f1

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