Malicious PDF — malware analysis report

Static analysis result for SHA-256 00e332aa4bb778bf…

MALICIOUS

PDF

42.4 KB Created: 2021-05-14 02:05:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 55afded4e8fc147a8806f91139b36e58 SHA-1: 3cf72e7dbf5c0a7db91d45c0184875a47ccad6a4 SHA-256: 00e332aa4bb778bf3174f11f8cd792f69db98de22070036d42401113d50971a1
102 Risk Score

Malware Insights

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

This PDF file exhibits characteristics of a malicious document, including a high ML classifier score and the presence of a large number of external links, suggesting a link farm or hosting for malicious content. The document body contains a lure for 'Free Robux' and a call-to-action button, indicating a potential scam or phishing attempt. The embedded URLs likely lead to further malicious downloads or redirects.

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/free-robux-com-2021-game-hack
    • http://prazdnik-kzn.ru/images/minecraft-hax-download-no-virus_GM479516143.pdf
    • http://prazdnik-kzn.ru/images/free-spins-coin-master_GM406889139.pdf
    • http://prazdnik-kzn.ru/images/how-to-get-free-followers-on-roblox_GM431946152.pdf
    • http://prazdnik-kzn.ru/images/how-to-get-free-robux-without-paying_GM431946152.pdf
    • http://prazdnik-kzn.ru/images/rblx-city-free-robux_GM431946152.pdf
    • http://prazdnik-kzn.ru/images/minecraft-java-code-free_GM479516143.pdf
    • http://prazdnik-kzn.ru/images/how-can-i-get-free-robux_GM431946152.pdf
    • http://prazdnik-kzn.ru/images/coin-master-daily-free-spins-link-today-2021_GM406889139.pdf
    • http://prazdnik-kzn.ru/images/coins-master-hack_GM406889139.pdf
    • http://prazdnik-kzn.ru/images/apps-that-give-you-free-robux_GM431946152.pdf
    • http://prazdnik-kzn.ru/images/free-games-coin-master_GM406889139.pdf
    • http://prazdnik-kzn.ru/images/hack-roblox-players_GM431946152.pdf
    • http://prazdnik-kzn.ru/images/2021-coin-master-hack_GM406889139.pdf
    • http://prazdnik-kzn.ru/images/coin-master-free-spins-hack-apk-download_GM406889139.pdf
    • http://prazdnik-kzn.ru/images/mcpe-master-coins-hack-download_GM406889139.pdf
    • http://prazdnik-kzn.ru/images/how-to-hack-someones-roblox-account-2021_GM431946152.pdf
    • http://prazdnik-kzn.ru/images/coin-master-free-daily-spins_GM406889139.pdf
    • http://prazdnik-kzn.ru/images/coin-master-daily-free-spin-and-coin-link-haktuts_GM406889139.pdf
    • http://prazdnik-kzn.ru/images/how-to-get-free-robux-without-verification_GM431946152.pdf
    • http://prazdnik-kzn.ru/images/coin-master-attack-block-hack_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004946.bin
dd6970847aee9c5dd89467290d59b27b99d813521e11069d256c4775ed14b67d
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4946 24740 bytes
font_01_sfnt_off000081f9.bin
db7deb15448d884d15c6a42f746ab8a768d26593fd7e085f0109997e06cd96ff
pdf-font-stream PDF embedded font (sfnt) at offset 0x81F9 18676 bytes