Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2b2da3f4f1a8fea…

MALICIOUS

PDF

36.0 KB Created: 2021-06-27 16:11:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-24
MD5: 800bf5c03d7058345cf1abca01367fdb SHA-1: 0ae62f0bd3d088c0bd98ef912ee6b7c7aeb033c8 SHA-256: d2b2da3f4f1a8fea5321a319ffae3b71514cc34cf4a999353ff09f9147b45998
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links, including one identified as a malicious redirector, that lure users to sites offering game hacks and generators. The primary link, http://netcdn.co/app/431946152/hack-roblox-pc-sur-jailbreak-game-hack, is associated with known malicious infrastructure. The document body and embedded URLs reinforce the theme of exploiting popular games like Roblox for in-game currency or cheats, a common social engineering tactic. No scripts were extracted, but the presence of malicious links and the lure suggest 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/hack-roblox-pc-sur-jailbreak-game-hack In PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/free-minecraft-pe-server_GM479516143.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/roblox-cheat-engine-scripts-2021_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/free-robux-place_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/free-robux-with-out-human-verification_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/nonsencediamond-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/minecraft-apk-114_GM479516143.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/minecraft-logo-maker-free_GM479516143.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/roblox-hacks-com_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/how-to-get-unlimeted-robux-for-free-with-copying-notes_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/nazi-roblox-hack-pastebin_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/free-roblox-accounts-with-bc-and-robux_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/how-to-hack-on-roblox-assain_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/working-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/hack-bunny-hollie-roblox-account_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/free-robux-roblox-game-2021-may_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/roblox-gg-free-quick_GM431946152.pdfIn PDF document text
    • http://perpustakaan.yudharta.ac.id/etj/repository/how-to-o-get-free-coin-master-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_off0000341c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x341C 22740 bytes
SHA-256: 7d420e6ece03e0f335e08eb8c427ab276aec4dc3619ddcab4cb6b41aa8436e7b
font_01_sfnt_off00006751.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6751 19236 bytes
SHA-256: 5e3559d3e15842e9020ca60ee041d891900b6556d0ea42917179656b6f5a67cd

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