Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2875a11172986b4…

MALICIOUS

PDF

42.5 KB Created: 2021-05-14 23:06:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: aae64e9cfc85dc5373985ebfbdd1d92c SHA-1: 76f850e9a21fe8133aec1977753cad77f5be728f SHA-256: d2875a11172986b4e85d431f930b21f6fc73b328251c5c74235e954c69a9d4df
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains a large number of external links, many of which are SEO-optimized and point to pages related to game hacks and currency. The document's content and the presence of numerous external links suggest a phishing or malware distribution attempt. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/431946152/game-give-free-robux-game-hack
    • http://lookpaineis.com.br/images/how-to-hack-someones-roblox-account-2021_GM431946152.pdf
    • http://lookpaineis.com.br/images/play-coin-master_GM406889139.pdf
    • http://lookpaineis.com.br/images/how-to-get-free-robux-for-free_GM431946152.pdf
    • http://lookpaineis.com.br/images/free-coins-and-spins-coin-master_GM406889139.pdf
    • http://lookpaineis.com.br/images/get-free-robux-no-human-verification_GM431946152.pdf
    • http://lookpaineis.com.br/images/free-robux-rewards_GM431946152.pdf
    • http://lookpaineis.com.br/images/coin-master-attack-madness-hack_GM406889139.pdf
    • http://lookpaineis.com.br/images/hack-coin-master-without-verification_GM406889139.pdf
    • http://lookpaineis.com.br/images/roblox-source_GM431946152.pdf
    • http://lookpaineis.com.br/images/coin-master-update-2021_GM406889139.pdf
    • http://lookpaineis.com.br/images/free-spins-on-coin-master_GM406889139.pdf
    • http://lookpaineis.com.br/images/moon-static-coin-master-generator-hacks-free_GM406889139.pdf
    • http://lookpaineis.com.br/images/master-coin-hack-mod_GM406889139.pdf
    • http://lookpaineis.com.br/images/links-for-free-spins-for-coin-master_GM406889139.pdf
    • http://lookpaineis.com.br/images/good-free-minecraft-server-hosting_GM479516143.pdf
    • http://lookpaineis.com.br/images/coin-master-free-spins-and-coins-2021_GM406889139.pdf
    • http://lookpaineis.com.br/images/coin-master-2021_GM406889139.pdf
    • http://lookpaineis.com.br/images/get-free-robux-now_GM431946152.pdf
    • http://lookpaineis.com.br/images/free-spins-coin-master-daily_GM406889139.pdf
    • http://lookpaineis.com.br/images/how-to-generate-free-coin-master-spin_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000049c9.bin
396a64a035bc3a756d1d01945945ad5113e9597199f8b606a7f6eead0889ee46		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49C9 25252 bytes
font_01_sfnt_off00008260.bin
457049c0c0b067ea8a2ccaf5c24f39a354f8c872058b648fa686429afe9091ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8260 18736 bytes

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