Malicious PDF — malware analysis report

Static analysis result for SHA-256 024cddc7ca63ed48…

MALICIOUS

PDF

42.9 KB Created: 2021-06-07 18:25:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: cf8e2f6b1852e2a3f44f638d11f29fc6 SHA-1: e5de937c711229476cc3a1b97edcfbb94b726c93 SHA-256: 024cddc7ca63ed48b371d788f34548b87736fee5e7ecd42273030f12ced9c818
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free generators'. The ML classifier also flagged this PDF as malicious. The presence of these links and the lure content strongly suggest a phishing or scam attempt designed to lead users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9874

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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.tw/app/431946152/hoops-hack-roblox-game-hack In PDF document text
    • http://lawpatron.ru/images/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://lawpatron.ru/images/minecraft-nintendo-switch-digital-code-free_GM479516143.pdfIn PDF document text
    • http://lawpatron.ru/images/coin-master-free-in-app-purchases-jailbreak_GM406889139.pdfIn PDF document text
    • http://lawpatron.ru/images/coin-master-email-rewards_GM406889139.pdfIn PDF document text
    • http://lawpatron.ru/images/coin-master-free-spin-and-coin-link-haktuts-hacking-news_GM406889139.pdfIn PDF document text
    • http://lawpatron.ru/images/how-to-hack-coin-master-using-es-filer_GM406889139.pdfIn PDF document text
    • http://lawpatron.ru/images/free-robux-com_GM431946152.pdfIn PDF document text
    • http://lawpatron.ru/images/robux-gainer_GM431946152.pdfIn PDF document text
    • http://lawpatron.ru/images/how-do-you-get-tiktok-hearts-for-free_GM835599320.pdfIn PDF document text
    • http://lawpatron.ru/images/download-phantom-forces-roblox-aimbot-hack-script-2021-tutorial_GM431946152.pdfIn PDF document text
    • http://lawpatron.ru/images/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • http://lawpatron.ru/images/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://lawpatron.ru/images/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://lawpatron.ru/images/free-robux-no-email_GM431946152.pdfIn PDF document text
    • http://lawpatron.ru/images/minecraft-pe_GM479516143.pdfIn PDF document text
    • http://lawpatron.ru/images/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • http://lawpatron.ru/images/robux-codes_GM431946152.pdfIn PDF document text
    • http://lawpatron.ru/images/cool-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://lawpatron.ru/images/coin-master-time-hack-2021_GM406889139.pdfIn PDF document text
    • http://lawpatron.ru/images/roblox-hack-com_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_off00004dde.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4DDE 24600 bytes
SHA-256: f960b6c6eb067d5dc741be3f600776dc7080bf99eeb1e6059438f82db9f37504
font_01_sfnt_off00008496.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8496 18356 bytes
SHA-256: 0330bb25fd63efb488347b843792b459cbe2bdf9496322a92401a62144cad75f

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