Malicious PDF — malware analysis report

Static analysis result for SHA-256 be235994233ec3bd…

MALICIOUS

PDF

35.1 KB Created: 2021-07-02 03:45:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 8dddb9b25aceea60365bbf87b712162a SHA-1: 4cfd7234dad15e99bb200f35e429771272b364c6 SHA-256: be235994233ec3bd218d184dbbfa41a0eab45f845f263730ceb6a97cc45320ee
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document exhibits characteristics of a malicious lure, specifically a link farm designed to redirect users to potentially harmful content. The document body and embedded URLs promote 'hacks' and 'generators' for popular games, aiming to trick users into downloading further malware. The ML classifier strongly supports this assessment, and the presence of numerous external links indicates a high likelihood of a malicious workflow.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/anarchy-roblox-hack-game-hack PDF link annotation
    • https://pn-tapaktuan.go.id/pustaka/repository/free-roblox-account-premium-generator_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/pig-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/teach-me-to-hack_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/how-to-get-2021202120219-robux-for-free_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/bentoysandgames-freerobux_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/coin-master-daily-rewards-link_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/roblox-free-builders-club-membership_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/get-free-robux-no-offers_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/get-robux-for-free-on-your-browser_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/flamingo-skin-but-its-free-roblox_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/minecraft-bedrock-edition-hacks_GM479516143.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/roblox-jailbreak-speed-hack-update-codes-2021_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/how-do-i-use-a-roblox-script-hacking_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/coin-master-hack-pro-gamers-com_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/hacks-para-cualquier-juego-de-roblox-2021_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/coin-master-game-android-free-download_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/tat-ca-cac-do-free-trong-roblox_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/free-robux-generator-for-kids_GM431946152.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/coin-master-hack-for-ios_GM406889139.pdfIn PDF document text
    • https://pn-tapaktuan.go.id/pustaka/repository/coin-master-daily-gifts_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000327a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x327A 22584 bytes
SHA-256: d18ff6dde9355970b3cce2dbdc13a7e55063a294c188f9102f9336d841de5bc0
font_01_sfnt_off00006480.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6480 19004 bytes
SHA-256: a4fbb48f9cad6a65a71c701285bddfb89b750dd1c5338e5982f0ba8b049e9149

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