Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d01a501d78b6cdd…

MALICIOUS

PDF

34.3 KB Created: 2021-06-19 14:41:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25
MD5: db84c4c04c809874faadc5b6c2c113b7 SHA-1: c6feef0fe2122eb0deb2c52316c73eaf37b63332 SHA-256: 4d01a501d78b6cdd42e462f13e8d302e2c59c24397dcdb810be79845135f81db
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game currency and hacks to entice users to click on embedded links. The primary link directs to a known malicious redirector infrastructure, which likely serves as a gateway to further malicious content or downloads. No scripts were extracted, but the document's structure and embedded URLs strongly indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/robux-hack-with-inspect-game-hack In PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/como-ser-hacker-en-roblox-mad-city_GM431946152.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/download-apps-for-robux_GM431946152.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/www-robux-us_GM431946152.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/2021-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/roblox-free-download-for-tablet_GM431946152.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/how-to-get-minecraft-windows-10-for-free-with-java_GM479516143.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/evry-thing-on-the-roblox-caolog-free-fast_GM431946152.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/free-roblox-money_GM431946152.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/moonactive-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/tiktok-views-free_GM835599320.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/free-roblox-executor_GM431946152.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/how-to-get-robux-easy_GM431946152.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
    • http://www.tucsen.net/Public/upload/editorfiles/como-hackear-coin-master-ios_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_off00002f0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F0A 21988 bytes
SHA-256: 1393076d9b9bf6d8076208fe5925155e4762b12c7f4d7a79a3129bb2c64d04f2
font_01_sfnt_off00005fb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FB7 19484 bytes
SHA-256: 127122af0ad33d2e9d9aa9c943000fbd57d5cd0e7aa20a0addd34fdfed64a7ef

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