PDF static analysis report

Static analysis result for SHA-256 b21f264b3a31546a…

SUSPICIOUS

PDF

33.2 KB Created: 2021-06-22 05:31:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 9bdd05d4d5107ca2d739b5544e4b82b0 SHA-1: c658a8fb74f3dbec0708d42d7272fa220b780fee SHA-256: b21f264b3a31546a53bbdbc80220dcce2695a2530386437f3703882440eb2e66
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document body contains text and embedded URLs related to 'Roblox Hacks' and 'Robux Generators', indicating a lure for potentially malicious downloads or phishing. The ML classifier strongly flagged this PDF as malicious. The presence of external URIs and the overall theme suggest an attempt to trick users into downloading a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • 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-hack-peolple-game-hack PDF link annotation
    • http://foo.com.tw/files/how-to-hack-games-in-roblox_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/minecraft-online-free-download_GM479516143.pdfIn PDF document text
    • http://foo.com.tw/files/free-roblox-dominus_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/free-robux-games_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/free-robux-group_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • http://foo.com.tw/files/cute-free-hair-on-roblox_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/coin-master-link-today_GM406889139.pdfIn PDF document text
    • http://foo.com.tw/files/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/adopt-me-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/free-robux-master_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/roblox-robort-free-mega-vip_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/robux-survey_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/roblox-hack-ios_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/appsmob-info-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://foo.com.tw/files/easy-roblox-today_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/how-to-get-real-robux_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/free-roblox-groups-with-funds_GM431946152.pdfIn PDF document text
    • http://foo.com.tw/files/roblox-builders-club-free_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 6

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
font_00_sfnt_off00002db5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DB5 21440 bytes
SHA-256: ceac5933527b872c37402fa34e24e533fe25b4cb382262aa85719e81c4ccf61d
font_01_sfnt_off00005c96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C96 18988 bytes
SHA-256: 47984567f58ffcfc17111cbdfa3f8cbd4ce0486ab67f5323383bb43cdb8590f5

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