Malicious PDF — malware analysis report

Static analysis result for SHA-256 58552c687664dc4e…

MALICIOUS

PDF

48.0 KB Created: 2021-06-09 14:09:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 38843a03ed9885c2501f4db06ddc3ff1 SHA-1: 231fcdd76c7eb6e530137e7ace3b2a38f149c205 SHA-256: 58552c687664dc4e6f859126e911034ac6854e93531a189618e5f67fd0cbff63
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links to external websites, many of which are hosted on suspicious domains and appear to be part of a link farm. The document body and extracted URLs suggest a lure for free Robux and game hacks, a common social engineering tactic. The presence of embedded URIs and a link farm heuristic indicates the document's primary purpose is to redirect users to potentially malicious content, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9871

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.tw/app/431946152/free-robux-from-watching-ads-game-hack
    • http://svadba-moda.kg/images/how-did-someone-hacked-in-roblox-jailbreak_GM431946152.pdf
    • http://svadba-moda.kg/images/how-to-cheat-on-roblox-with-cheat-engine-64_GM431946152.pdf
    • http://svadba-moda.kg/images/blox-land-free-robux_GM431946152.pdf
    • http://svadba-moda.kg/images/roblox-best-looking-free-avatar_GM431946152.pdf
    • http://svadba-moda.kg/images/minecraft-pocket-edition-free-download_GM479516143.pdf
    • http://svadba-moda.kg/images/how-to-get-free-followers-on-tiktok-fast_GM835599320.pdf
    • http://svadba-moda.kg/images/roblox-robux-hack-inspect-element_GM431946152.pdf
    • http://svadba-moda.kg/images/best-free-minecraft-servers_GM479516143.pdf
    • http://svadba-moda.kg/images/how-to-get-robux-for-free-2021_GM431946152.pdf
    • http://svadba-moda.kg/images/how-to-get-minecraft-bedrock-edition-for-free_GM479516143.pdf
    • http://svadba-moda.kg/images/how-to-get-free-likes-on-tiktok_GM835599320.pdf
    • http://svadba-moda.kg/images/how-do-you-get-free-robux-on-roblox_GM431946152.pdf
    • http://svadba-moda.kg/images/free-minecraft-capes_GM479516143.pdf
    • http://svadba-moda.kg/images/how-to-hack-survoivr-in-roblox-pc_GM431946152.pdf
    • http://svadba-moda.kg/images/how-do-i-get-free-robux_GM431946152.pdf
    • http://svadba-moda.kg/images/coin-master-free-spin-link-today-2021_GM406889139.pdf
    • http://svadba-moda.kg/images/hack-robux-site-robloxcom_GM431946152.pdf
    • http://svadba-moda.kg/images/free-printable-minecraft-coloring-pages_GM479516143.pdf
    • http://svadba-moda.kg/images/free-robux-codes-2021_GM431946152.pdf
    • http://svadba-moda.kg/images/how-to-get-free-spins-on-coin-master_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005460.bin
26767c77607d365665b58f8ffba4d1917b590db05e67b77e8c5b9648401e5d69
pdf-font-stream PDF embedded font (sfnt) at offset 0x5460 28764 bytes
font_01_sfnt_off0000957e.bin
f2dabf721d58a7ba379f2d883d496ed56543a21968be416df9646e3fe0a35850
pdf-font-stream PDF embedded font (sfnt) at offset 0x957E 19552 bytes