Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9a3db303b0ff5ad…

MALICIOUS

PDF

43.2 KB Created: 2021-05-13 14:18:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 1f3ec584b88af845db141bb714534072 SHA-1: 9d508fe1b69643834257b6d60ff2a957dc3ae7f0 SHA-256: e9a3db303b0ff5ad7abdceff05aab789bbf8c4edbd4649e9004bab6cc2da2d08
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file contains multiple embedded URIs and a clickable URI pointing to an IP address, all of which are designed to lead the user to download potentially malicious files. The ML classifier strongly flagged this PDF as malicious, and the presence of a download button heuristic further supports the lure-based attack pattern. The document body, though heavily obfuscated, contains references to game hacks and download URLs, reinforcing the phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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/479516143/wurst-download-game-hack
    • http://118.174.0.244/UserFiles/File/roblox-hack-com_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/minecraft-story-mode-free_GM479516143.pdf
    • http://118.174.0.244/UserFiles/File/robuxy-com-generator_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/se-puede-hackear-coin-master_GM406889139.pdf
    • http://118.174.0.244/UserFiles/File/how-to-get-free-robux-fast-and-easy_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/best-free-robux-sites_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/robux-today_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/free-robux-promo-codes-2021_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/free-robux-with-no-survey_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/free-robux-without-doing-anything_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/free-robux-no-human-verification-or-survey-or-download_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/coin-master-free-spins-link-today-hack_GM406889139.pdf
    • http://118.174.0.244/UserFiles/File/coin-master-tiradas-gratis-2021_GM406889139.pdf
    • http://118.174.0.244/UserFiles/File/robux-no-survey_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/free-robux-mod_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/get-free-coins-for-coin-master_GM406889139.pdf
    • http://118.174.0.244/UserFiles/File/free-robux-codes-no-verification-2021_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/websites-that-give-free-robux_GM431946152.pdf
    • http://118.174.0.244/UserFiles/File/coin-master-home_GM406889139.pdf
    • http://118.174.0.244/UserFiles/File/games-that-give-free-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b1e.bin
26005924b5976b7dd3a4f2481a26f4bd5d8b246931417836d4c952479aa4450a
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B1E 25628 bytes
font_01_sfnt_off000085ca.bin
fa1f483b34cb572f7f62a7150fe0d508507468ba2dbe973ec2c8b024440d6681
pdf-font-stream PDF embedded font (sfnt) at offset 0x85CA 18508 bytes