Malicious PDF — malware analysis report

Static analysis result for SHA-256 720b972694d65107…

MALICIOUS

PDF

34.2 KB Created: 2021-06-25 11:12:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 9cc98052234fa0534fef8faba8b7ba58 SHA-1: 7406a258605b690c3c8425ccf3e59ed7035111a5 SHA-256: 720b972694d65107f7d5005d30cc60c378f3be46ebb6d8e34eefd05aa772d4e9
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including a prominent one to 'netcdn.co', which is flagged as a game hack lure. The document body also contains similar URLs, suggesting a phishing or malware distribution attempt. No scripts were extracted, but the presence of external links and the 'game hack' lure strongly indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/hack-theme-park-tycoon-2-roblox-game-hack PDF link annotation
    • http://repository.unla.ac.id/repository/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/are-you-allowed-to-hack-roblox_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/coin-master-gameplay_GM406889139.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/pokemon-go-free-weekly-remote-raid-pass_GM1094591345.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/coin-master-ios-hack-download_GM406889139.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/free-robux-com_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/free-emote-strucid-roblox_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/roblox-pokemon-brick-bronze-hack-2021_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/coin-master-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/coin-master-hack-spins-2021_GM406889139.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/hack-para-obtener-robux-2021_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/coin-master-links-2021_GM406889139.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/get-free-robux-items-roblox_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/i-didnt-get-my-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/hack-someones-roblox-password_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/oprewards-com-robux_GM431946152.pdfIn PDF document text
    • http://repository.unla.ac.id/repository/free-robux-app-real_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_off00002eac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EAC 21988 bytes
SHA-256: 2783ad58fd42793dd2b42179c18f2797ea5de54d348ed0510cf6806b53b4f54b
font_01_sfnt_off00005f5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F5A 19540 bytes
SHA-256: 1409f2ae81b3c1e226177ecaf6753ce643d3ab6e4e47e1c18fba338e38d92213

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