Malicious PDF — malware analysis report

Static analysis result for SHA-256 03ff18b0808c0c71…

MALICIOUS

PDF

43.2 KB Created: 2021-05-14 01:35:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 62da4abbf2f3a1d1363c97da279b12b0 SHA-1: 6b0c6b50c2f5ee6c47087a3e8382b823fc297871 SHA-256: 03ff18b0808c0c711225350e4c447904d724532fa40e6982f4299fbf90422633
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged as malicious by an ML classifier and contains numerous external links, many of which are related to game hacks and cheats. The document body, though partially corrupted, contains URLs that suggest a lure for obtaining in-game currency or cheats. The presence of embedded links and the overall structure indicate an attempt to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/406889139/how-to-get-more-free-coins-on-coin-master-game-hack
    • http://laboraltoledo.com/images/coin-master-free-spins-link-blogspot_GM406889139.pdf
    • http://laboraltoledo.com/images/free-coin-master-hacks_GM406889139.pdf
    • http://laboraltoledo.com/images/fighting-free-card-coin-master_GM406889139.pdf
    • http://laboraltoledo.com/images/coin-master-free-spin-link-twitter_GM406889139.pdf
    • http://laboraltoledo.com/images/coin-master-apk-mod-hack-download_GM406889139.pdf
    • http://laboraltoledo.com/images/free-spins-coin-master-hack-2021_GM406889139.pdf
    • http://laboraltoledo.com/images/www-coin-master-hack-xyz_GM406889139.pdf
    • http://laboraltoledo.com/images/coin-master-free-spins-link-blogspot-today_GM406889139.pdf
    • http://laboraltoledo.com/images/bux-life-free-robux_GM431946152.pdf
    • http://laboraltoledo.com/images/hey-google-how-do-you-get-free-robux_GM431946152.pdf
    • http://laboraltoledo.com/images/coin-master-hack-online-generator_GM406889139.pdf
    • http://laboraltoledo.com/images/roblox-avatar-maker-free_GM431946152.pdf
    • http://laboraltoledo.com/images/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdf
    • http://laboraltoledo.com/images/coin-master-spins-gratis_GM406889139.pdf
    • http://laboraltoledo.com/images/free-game-packs-for-coin-master_GM406889139.pdf
    • http://laboraltoledo.com/images/free-robux-2021-no-human-verification_GM431946152.pdf
    • http://laboraltoledo.com/images/easy-robux-generator_GM431946152.pdf
    • http://laboraltoledo.com/images/coin-master-free-spins-hack-without-human-verification_GM406889139.pdf
    • http://laboraltoledo.com/images/free-minecraft-server-hosting_GM479516143.pdf
    • http://laboraltoledo.com/images/free-spins-coin-master-links-twitter_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b6c.bin
896aca32b80a7194525b8ff633b55c025300d6792c87cf8a5cbc1a6a15c0e90d
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B6C 25820 bytes
font_01_sfnt_off000087e4.bin
73b45e218274b6fbec23894575b4e000a8847b8f387ad102a3b5957b324b85f8
pdf-font-stream PDF embedded font (sfnt) at offset 0x87E4 17872 bytes