Malicious PDF — malware analysis report

Static analysis result for SHA-256 024f2f4d7845fc24…

MALICIOUS

PDF

35.0 KB Created: 2021-06-30 10:54:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20
MD5: a0fd41a07a43c2df5990aac532b4b968 SHA-1: d862cfe65f5ce9e6ccd536c67e9150adf4611356 SHA-256: 024f2f4d7845fc24f6e123cd7ebabf1ea5b7cfa6ce0ea8d8fb3fe807d1d5e3be
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, disguised as 'game hacks' or 'Robux generators'. The primary lure URL is http://netcdn.co/app/431946152/robux-hack-with-phone-number-game-hack. The document body and embedded links suggest a social engineering tactic to trick users into visiting these malicious sites, likely leading to further malware downloads or phishing attempts. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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-phone-number-game-hack In PDF document text
    • http://digilib-ppsunisma.ac.id/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/tiktok-like-bot-free_GM835599320.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/script-to-hack-generator-of-robux_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/games-that-really-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/can-u-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-robux-2021_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-fire-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/hack-somebody-on-roblox_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-free-item-source-code_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-online-roblox-tycoons_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/robux-hacks-for-pc_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-hack-robux-no-survey-2021_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/daily-coin-master-free-spin-apk_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/robux-xyz_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/cool-outfits-for-halloween-roblox-for-free-2021_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-download-free-chromebook_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/boku-no-roblox-remastered-script-hack_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/coin-master-blogspot-links_GM406889139.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/robux-incinerator-win-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/haktuts-coin-master-free-daily-spins_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_off000030fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30FD 22092 bytes
SHA-256: 2a1802877c9b5347714f6e481b66fc750b4c6e496759c54692f957abd570a685
font_01_sfnt_off00006205.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6205 19724 bytes
SHA-256: 6316ee3a62939af0f792323dc1d02babbf4c3315bd4e3d36a7fcd824527a2611

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