Malicious PDF — malware analysis report

Static analysis result for SHA-256 eeb8b4a4b1c5be06…

MALICIOUS

PDF

55.0 KB Created: 2021-05-13 01:38:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: c3d0b95c2f9b677c6f409886827034a1 SHA-1: c7f4b9aeade1f0c5a3e740ea22127ad47898fb39 SHA-256: eeb8b4a4b1c5be069c4898e221eb1f33744c5969cd934eb3905b71d6e05970c1
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 spins'. The primary redirector URL is https://netcdn.xyz/app/406889139/coin-master-500-free-spins-game-hack. This indicates a social engineering lure designed to trick users into visiting potentially harmful sites. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8531

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.xyz/app/406889139/coin-master-500-free-spins-game-hack In PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/can-i-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/get-coin-master-cards-free_GM406889139.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/free-robux-no-verification-2021-android_GM431946152.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/hack-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/roblox-2021-hack_GM431946152.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/wurst-mc_GM479516143.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/coin-master-free-2021-spin-link-today_GM406889139.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/how-to-hack-mcpe-master-coins_GM406889139.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/minecraft-survival-free_GM479516143.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/free-coins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/get-me-free-robux_GM431946152.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/coin-master-400-spin-link-hack_GM406889139.pdfIn PDF document text
    • https://www.lincolnec.edu.np/userfiles/files/roblox-survey-for-robux_GM431946152.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000049de.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49DE 27120 bytes
SHA-256: c538a567854ed70536394dc28c87746cb14129af6636ca47de55a0cbb75eb774
font_01_sfnt_off00008863.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8863 3088 bytes
SHA-256: e7854aff7cbc8fbdeb85d2b3d6248d12dc820ede8a581f4eac107fa6446c2222
font_02_sfnt_off0000932e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x932E 7960 bytes
SHA-256: cf7ae5cf6bef3222f5a26bec705b492fed0278aec6b16ec101aeda46e0edd2b2
font_03_sfnt_off0000a654.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA654 18192 bytes
SHA-256: 125a73f883adbce2d9ba98dbcdb707663d1ca3c21f762afcc3d4ea8c4cd052f9
font_04_sfnt_off0000c825.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC825 4272 bytes
SHA-256: fac9a06ceb5574feb8580c075df3ef69dfbd0efa4947186cfe90f11b68eaafb0

Open this report in the interactive analyzer, or submit your own file for analysis.