PDF static analysis report

Static analysis result for SHA-256 aac52e4a78d7176a…

SUSPICIOUS

PDF

34.8 KB Created: 2021-07-09 10:24:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: ff05be89f6acf9e5ade3b9c9925ee5ff SHA-1: 37d56ee8325a83a9d1cd6201933c04fc29d2b336 SHA-256: aac52e4a78d7176a1ffa4974584ab578916ef1387af4646b5dbab65f55a11393
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains a lure for free Robux, a virtual currency, and includes an external URI pointing to a potential download. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of malicious intent. The presence of numerous related URLs further supports the phishing and potential malware distribution vector.

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.tw/app/431946152/free-robux-no-human-verification-or-survey-or-download-game-hack PDF link annotation
    • http://elib-s2.ubl.ac.id/repository/hacker-minecraft-song_GM479516143.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/roblox-lisa-hack_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/free-robux-promo-codes-august-2021_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/how-to-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/how-to-make-a-free-roblox-shirt_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/eupo-fun-roblox-hack_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/roblox-robux-hack-v1-34-download_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/new-roblox-hack-script_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/roblox-field-of-battle-gold-hack_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/roblox-hack-cheat-free-robux-generator-online-exploit_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/free-items-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/free-robux-form-rbfarm_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/change-your-roblox-name-for-free_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/best-roblox-hacked-clients-2021-youtube_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/roblox-hacks-no-virus_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/hack-to-get-money-on-bloxburg-roblox_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/how-to-get-free-robux-without-builders-club_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/how-to-hack-accounts-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/roblox-hack-for-high-rank_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/camping-hacks-roblox_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
font_00_sfnt_off00002e2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E2E 22240 bytes
SHA-256: a01a8fdcb05400736cae4347afe021032e140706571646b9d019a606dd4da9c5
font_01_sfnt_off00005f7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F7D 20208 bytes
SHA-256: 76b0661ef1631e3ff5be93da9b7a1da7a58595af6d3396f266def641a9cc9522