Malicious PDF — malware analysis report

Static analysis result for SHA-256 fee6310c6b843547…

MALICIOUS

PDF

46.4 KB Created: 2021-06-14 01:56:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 7aa3c048b6619a956a346c6149703814 SHA-1: 65a3a0a0303eda7bc76abf6018ea1b2c3b37271b SHA-256: fee6310c6b843547f362bbc3321de4af8abfce72242fdc5f6eaa4f8e8051f7ad
100 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links to known malicious redirector infrastructure, specifically advertising game hacks and cheats. The ML classifier also flagged this PDF as malicious with high confidence. The document body and extracted URLs suggest a social engineering lure to download potentially unwanted or malicious software.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

Heuristics 3

  • 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/redline-3.2-hack-roblox-game-hack In PDF document text
    • http://library.stembi.ac.id/repository/how-to-get-free-robux-easy-no-download_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/minecraft-java-free-trial_GM479516143.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/free-robux-hacks-legit-no-survey_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/robux-hack-video_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/how-to-hack-a-minecraft-server_GM479516143.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/roblox-royale-high-free-vip-server_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/free-robux-hack-pa_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/free-robux-no-playing-games-or-human-verification_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/roblox-dollar-chain-tshirt-free_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/roblox-free-rainbow-wings_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/free-minecraft-survival-server_GM479516143.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/free-robux-and-tix-2021_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/invisible-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/how-to-hack-robux-in-roblox-with-cheat-engine_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/free-minecraft-java-edition_GM479516143.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/roblox-hack-tool-for-android_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/minecraft-windows-10-hack-client-2021_GM479516143.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/minecraft-free-app_GM479516143.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/free-falling-roblox-id_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004abe.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4ABE 31400 bytes
SHA-256: ce81b9d9500eacf7266cef4d0d57a02b5a2f01da921acb3f45f7e9cad0a2c7a5
font_01_sfnt_off0000916a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x916A 18840 bytes
SHA-256: 362ce1a583cb4dbd93dbfad357a130f5f323d3d0b001fb9a8b6ada368dba39f7

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