Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e7b7850e12d3bba…

MALICIOUS

PDF

48.9 KB Created: 2021-06-03 07:05:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 9418e5abafb6a3addda822d2fd4322a4 SHA-1: 6a3deed39869b63e5dc87dac4655bf58237532b8 SHA-256: 6e7b7850e12d3bbaa801ccde522a9bd0c2d86c5d8749d1cc06b151e6997507ae
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting "game hacks" and "free generators." The primary malicious URL identified is https://netcdn.online/app/431946152/hacks-to-get-free-robux-game-hack. While no scripts were extracted, the PDF structure and embedded links strongly indicate a phishing or redirection attempt to deliver a secondary payload or lead users to a scam site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.online/app/431946152/hacks-to-get-free-robux-game-hack In PDF document text
    • https://www.angelsbasket.com/uploaded_files/userfiles/files/free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • https://www.angelsbasket.com/uploaded_files/userfiles/files/coin-master-hack-no-root_GM406889139.pdfIn PDF document text
    • https://www.angelsbasket.com/uploaded_files/userfiles/files/free-minecraft-com_GM479516143.pdfIn PDF document text
    • https://www.angelsbasket.com/uploaded_files/userfiles/files/play-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
    • https://www.angelsbasket.com/uploaded_files/userfiles/files/google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.angelsbasket.com/uploaded_files/userfiles/files/coin-master-daily-free-spins-link-today-blog_GM406889139.pdfIn PDF document text
    • https://www.angelsbasket.com/uploaded_files/userfiles/files/strucid-aimbot_GM431946152.pdfIn PDF document text
    • https://www.angelsbasket.com/uploaded_files/userfiles/files/free-roblox-girl-hair-not-a-model_GM431946152.pdfIn PDF document text
    • https://www.angelsbasket.com/uploaded_files/userfiles/files/minecraft-free-games-no-download_GM479516143.pdfIn PDF document text
    • https://www.angelsbasket.com/uploaded_files/userfiles/files/hack-a-game_GM431946152.pdfIn PDF document text
    • https://www.angelsbasket.com/uploaded_files/userfiles/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.angelsbasket.com/uploaded_files/userfiles/files/codes-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.angelsbasket.com/uploaded_files/userfiles/files/free-robux-survey_GM431946152.pdfIn PDF document text
    • https://www.angelsbasket.com/uploaded_files/userfiles/files/free-robux-ad_GM431946152.pdfIn PDF document text
    • https://www.angelsbasket.com/uploaded_files/userfiles/files/minecraft-java-edition-code-free_GM479516143.pdfIn PDF document text
    • https://www.angelsbasket.com/uploaded_files/userfiles/files/roblox-script-hack_GM431946152.pdfIn PDF document text
    • https://www.angelsbasket.com/uploaded_files/userfiles/files/minecraft-online-free-download_GM479516143.pdfIn PDF document text
    • https://www.angelsbasket.com/uploaded_files/userfiles/files/appsmobinfo-coinmasterhack-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.angelsbasket.com/uploaded_files/userfiles/files/roblox-avatar-maker-free_GM431946152.pdfIn PDF document text
    • https://www.angelsbasket.com/uploaded_files/userfiles/files/free-minecraft-servers-to-join_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000054b5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x54B5 26268 bytes
SHA-256: 4603878da0b5aa146c81796016f9e12f57bb99a0b2cd4b174e4f537489fa9c9a
font_01_sfnt_off000091d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91D1 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off00009b80.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B80 18516 bytes
SHA-256: 49067203d4eb86d04ddf999d64ba4750afe8b15cea6fed862c5ee30987f881c1

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