Malicious PDF — malware analysis report

Static analysis result for SHA-256 466d9163b988374b…

MALICIOUS

PDF

35.6 KB Created: 2021-07-01 07:13:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 2e39d91429f4a9096aa0562772d1a86d SHA-1: c8de2a4b1258ac7cdce7ba89a60bc76801346ecf SHA-256: 466d9163b988374b0de7ecef1a1005ff2f0253bac1d6411b7a0d280d5c3e55a6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to free game currency and hacks, directing users to a known malicious redirector. The embedded URL 'http://netcdn.co/app/431946152/roblox-free-login-and-password-game-hack' is a critical indicator of malicious intent. While no scripts were explicitly extracted, the PDF structure and heuristics suggest it's designed to exploit user interest in game cheats to redirect them to potentially harmful content.

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/roblox-free-login-and-password-game-hack In PDF document text
    • https://www.blessflowers.com.au/uploaded_files/userfiles/files/free-robux-rewards-discord_GM431946152.pdfIn PDF document text
    • https://www.blessflowers.com.au/uploaded_files/userfiles/files/free-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.blessflowers.com.au/uploaded_files/userfiles/files/how-to-get-free-robux-obby-no-password_GM431946152.pdfIn PDF document text
    • https://www.blessflowers.com.au/uploaded_files/userfiles/files/roblox-dungeon-quest-get-unlimited-gold-and-free-vip_GM431946152.pdfIn PDF document text
    • https://www.blessflowers.com.au/uploaded_files/userfiles/files/get-robux-today_GM431946152.pdfIn PDF document text
    • https://www.blessflowers.com.au/uploaded_files/userfiles/files/give-free-robux_GM431946152.pdfIn PDF document text
    • https://www.blessflowers.com.au/uploaded_files/userfiles/files/how-to-get-minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
    • https://www.blessflowers.com.au/uploaded_files/userfiles/files/free-robux-or-real-without-email-needed_GM431946152.pdfIn PDF document text
    • https://www.blessflowers.com.au/uploaded_files/userfiles/files/free-robux-download-no-survey_GM431946152.pdfIn PDF document text
    • https://www.blessflowers.com.au/uploaded_files/userfiles/files/css-roblox-injector-hack_GM431946152.pdfIn PDF document text
    • https://www.blessflowers.com.au/uploaded_files/userfiles/files/how-to-be-carrot-god-for-free-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.blessflowers.com.au/uploaded_files/userfiles/files/how-to-get-roblox-premium-for-free-2021_GM431946152.pdfIn PDF document text
    • https://www.blessflowers.com.au/uploaded_files/userfiles/files/free-minecraft-maps_GM479516143.pdfIn PDF document text
    • https://www.blessflowers.com.au/uploaded_files/userfiles/files/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.blessflowers.com.au/uploaded_files/userfiles/files/roblox-free-no-download_GM431946152.pdfIn PDF document text
    • https://www.blessflowers.com.au/uploaded_files/userfiles/files/buy-robux-free_GM431946152.pdfIn PDF document text
    • https://www.blessflowers.com.au/uploaded_files/userfiles/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://www.blessflowers.com.au/uploaded_files/userfiles/files/roblox-highschool-tix-hack_GM431946152.pdfIn PDF document text
    • https://www.blessflowers.com.au/uploaded_files/userfiles/files/how-to-get-free-coins-and-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.blessflowers.com.au/uploaded_files/userfiles/files/free-tiktok-likes-no-human-verification-or-survey_GM835599320.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 5

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000032c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32C1 22740 bytes
SHA-256: 892c60aa773dc5f1143623c1ca4e49c3e3a52dab5fae147d8c4ec8813cb2cbae
font_01_sfnt_off000065a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65A1 19264 bytes
SHA-256: e305aead67ca017e578b32f9d61d9e37ad09582a9ef3c36de8f0f0c185bb0e78

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