Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab5b703de508cc98…

MALICIOUS

PDF

35.4 KB Created: 2021-06-25 18:53:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: f96913d2a9b48159276f30801109cca9 SHA-1: 3c100b46fb12a45ea2fc3170b3f40b375012948f SHA-256: ab5b703de508cc98d028ed0f393450f433ec6ad0a003dafdd3062422928adc6f
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of embedded URLs, forming a link farm designed to lure users to download game-related hacks and cheats. The primary URL, http://netcdn.co/app/431946152/roblox-hacks-download-free-dll-game-hack, suggests a malicious payload delivery. The document's structure and content indicate a phishing or scam attempt, likely using a spearphishing attachment vector to distribute these lures.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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-hacks-download-free-dll-game-hack PDF link annotation
    • http://digilib.akperkabpurworejo.ac.id//repository/coin-master-hack-xyz-download_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/is-minecraft-education-edition-free_GM479516143.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/spin-link_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/play-roblox-for-free-on-google_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/free-preston-roblox-merch-catolog_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/my-minecraft-account-was-hacked_GM479516143.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/how-do-you-hack-into-a-roblox-account_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/my-boyfriend-is-cheating-on-me-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/coin-master-hack-2021-apk_GM406889139.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/how-to-have-no-pants-for-free-on-roblox-youtube_GM431946152.pdfIn PDF document text
    • https://digilib.akperkabpurworejo.ac.id/repository/roblox-free-giveaway_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/free-minecraft-mods_GM479516143.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/roblox-sunset-city-money-hack-2021-patched_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/dbr-roblox-hack_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id//repository/get-free-lives-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/coin-master-game-free-spin-download_GM406889139.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/free-gametestrobloxcom-accounts_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://digilib.akperkabpurworejo.ac.id/repository/free-game-pack-with-google-play-coin-master_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 21900 bytes
SHA-256: 3c33fe9789d6e327bd122d8e74d177df1ea1342abeb791d38563099c7c9e21c8
font_01_sfnt_off0000647d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x647D 19328 bytes
SHA-256: 186cd14fc7b8ee9df995139fbfc2afb0896cdd50c35a2b670244e2dba7f3cc33

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