Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f148f52d1f307ee…

MALICIOUS

PDF

47.9 KB Created: 2021-06-09 06:53:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: ac61482bfa52b08c331b3c2d7d48a915 SHA-1: 1b080f51169a1527ea42148ddedd799384550f82 SHA-256: 2f148f52d1f307ee5ce809a3ced86ffac9a8d8925159801cdc460d0fc72555ca
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links pointing to external websites, many of which appear to be part of a link farm related to game hacks and cheats. The ML classifier also flagged this PDF as malicious. The presence of a 'password-protected archive lure' heuristic suggests the document may be intended to trick users into downloading an archive that requires a password, potentially to bypass security scanning.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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 https://netcdn.tw/app/431946152/codes-that-are-get-free-roblox-game-hack PDF link annotation
    • https://library.uigm.ac.id/repository/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coins-master-hack_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/mangocheats-com-hack-coin-master-cheat_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-robux-clothes_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/youtube-free-robux-x-daniel_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/robux-hacks-2021_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-tiktok-likes-75_GM835599320.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-free-pet-food_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-free-coins-links-2021_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/roblox-terminator-genisys-cheat-codes_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/get-anything-free-catalog-roblox_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/tiktok-free-advertising_GM835599320.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-minecraft-account-and-password-2021_GM479516143.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-hack-tool-generator_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/how-to-hack-into-anyones-roblox-account-2021_GM431946152.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/free-coins-and-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
    • https://library.uigm.ac.id/repository/roblox-hair-for-free_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004e07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E07 26200 bytes
SHA-256: 06bdd3918694bdaf2f5051e53362f9cc6fe9660e56e05051e41a10738e65e740
font_01_sfnt_off00008a63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A63 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off00009775.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9775 18620 bytes
SHA-256: d6a49755db62e2c44ca2a33f330b5a48ed7581743cde35602764282bd5975008

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