Malicious PDF — malware analysis report

Static analysis result for SHA-256 510ea10fb0265afd…

MALICIOUS

PDF

44.4 KB Created: 2021-06-08 20:44:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: ebe3671dda795fe8628b83076b956ddc SHA-1: 2dff2dcf1766668274d3ac3e439dbd9bcddd4a79 SHA-256: 510ea10fb0265afdb57983d382f98da4c3489bf2d2e0fcf8d3f3a16b8ed94a5e
82 Risk Score

Malware Insights

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

This PDF document uses a lure related to Roblox hacks and an eviction notice to trick users into clicking a link. The embedded URL points to a resource that likely serves a malicious payload. The heuristic for a password-protected archive lure suggests that the downloaded content may be further obfuscated.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • 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/eviction-notice-roblox-hacks-game-hack PDF link annotation
    • http://nalmpantistractors.gr/images/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/minecraft-name-tag-hacks_GM479516143.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/free-minecraft-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/free-robux-only-username_GM431946152.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/robux-free-2021_GM431946152.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/easy-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/how-to-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/robux-premium_GM431946152.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/haktuts-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/free-draw-2-roblox_GM431946152.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/counter-blox-roblox-offensive-hacks-skins_GM431946152.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/minecraft-hacks-115-2_GM479516143.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/games-like-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/how-to-download-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/coin-master-hack-2021-free_GM406889139.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/blox-fish-free-robux_GM431946152.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/earn-free-robux_GM431946152.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_004_off0000500d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x500D 25780 bytes
SHA-256: 297764edd6fd0a603c9b3ca620241665ad89f4eb58757ff392ea798648ec3447
font_01_sfnt_off000089f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89F1 18520 bytes
SHA-256: a30a9c226c24aff38752f10be15f18b5c66513d2ac7923f82ac461e59004b30f

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