Malicious PDF — malware analysis report

Static analysis result for SHA-256 09258ccfa6500c29…

MALICIOUS

PDF

40.4 KB Created: 2021-05-20 01:43:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 0523904321b6b5e9c42216879aeb6103 SHA-1: 307ccf384c9870a953ac86d66f6ed53f40ffae62 SHA-256: 09258ccfa6500c295a4be855f1121a476348fa827de7f392d8717f2bb035190d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF document employs social engineering by presenting itself as a 'Tiktok Free Names' hack, which is a lure to install browser extensions or viewers. It contains an embedded URI pointing to a suspicious domain, likely serving as a download source for a secondary payload. The document's structure and embedded links strongly suggest an attempt to trick the user into executing malicious code or visiting malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 4

  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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.xyz/app/835599320/tiktok-free-names-game-hack PDF link annotation
    • http://elearning.madagresik.sch.id/__statics/gudangsoal/files/roblox-hack-com_GM431946152.pdfIn PDF document text
    • http://elearning.madagresik.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
    • http://elearning.madagresik.sch.id/__statics/gudangsoal/files/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://elearning.madagresik.sch.id/__statics/gudangsoal/files/coin-master-daily-bonus_GM406889139.pdfIn PDF document text
    • http://elearning.madagresik.sch.id/__statics/gudangsoal/files/free-dominus-roblox_GM431946152.pdfIn PDF document text
    • http://elearning.madagresik.sch.id/__statics/gudangsoal/files/robux-link_GM431946152.pdfIn PDF document text
    • http://elearning.madagresik.sch.id/__statics/gudangsoal/files/free-robux-no-email_GM431946152.pdfIn PDF document text
    • http://elearning.madagresik.sch.id/__statics/gudangsoal/files/how-to-get-free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://elearning.madagresik.sch.id/__statics/gudangsoal/files/www-free-robux_GM431946152.pdfIn PDF document text
    • http://elearning.madagresik.sch.id/__statics/gudangsoal/files/buxblast-com-robux_GM431946152.pdfIn PDF document text
    • http://elearning.madagresik.sch.id/__statics/gudangsoal/files/minecraft-servers-that-allow-hacks_GM479516143.pdfIn PDF document text
    • http://elearning.madagresik.sch.id/__statics/gudangsoal/files/games-like-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://elearning.madagresik.sch.id/__statics/gudangsoal/files/fake-robux-codes_GM431946152.pdfIn PDF document text
    • http://elearning.madagresik.sch.id/__statics/gudangsoal/files/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://elearning.madagresik.sch.id/__statics/gudangsoal/files/free-robux-reddit_GM431946152.pdfIn PDF document text
    • http://elearning.madagresik.sch.id/__statics/gudangsoal/files/how-to-hack-a-minecraft-account_GM479516143.pdfIn PDF document text
    • http://elearning.madagresik.sch.id/__statics/gudangsoal/files/coin-master-tiradas-gratis_GM406889139.pdfIn PDF document text
    • http://elearning.madagresik.sch.id/__statics/gudangsoal/files/hack-to-protect-village-on-coin-master_GM406889139.pdfIn PDF document text
    • http://elearning.madagresik.sch.id/__statics/gudangsoal/files/coin-master-spin-link-2021_GM406889139.pdfIn PDF document text
    • http://elearning.madagresik.sch.id/__statics/gudangsoal/files/coin-master-coins-free_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
stream_003_off0000478c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x478C 23360 bytes
SHA-256: 77770f97419ea0436aea97981ec4abcabe85c0ef3f35973498b06c7b79e04699
font_01_sfnt_off00007c82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C82 17944 bytes
SHA-256: 60c6809d49444c246009d0e1d25b4a8ae9e12af6983c82cf977b50eb3acc7c02

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