Malicious PDF — malware analysis report

Static analysis result for SHA-256 04a185e6510cc637…

MALICIOUS

PDF

42.0 KB Created: 2021-05-19 23:32:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 4f94e52dadd9f070fbb807e42b2afb63 SHA-1: a3b4754710e0bc031c479af01852a994960930fc SHA-256: 04a185e6510cc63728c6dfa226c075ad12c1ea2a95caad7bfbd73d5ceaa2eb35
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous embedded links, identified as a link farm, that direct users to websites offering game cheats and hacks. The ML classifier strongly indicated maliciousness, and the presence of external URIs and a visual download button lure suggests an attempt to trick users into downloading potentially harmful content or visiting phishing sites. No scripts were extracted, but the overall structure and content point to a social engineering attack.

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/406889139/coinmasterfreespins-game-hack
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-easy-on-phone_GM431946152.pdf
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/coin-master-spin-hack-no-human-verification_GM406889139.pdf
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/coin-master-offline-hack_GM406889139.pdf
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/update-coin-master-free-spins_GM406889139.pdf
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/if-i-uninstall-minecraft-can-i-reinstall-it-for-free_GM479516143.pdf
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/free-spin-coin-master-apk_GM406889139.pdf
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/daily-free-spins-on-coin-master_GM406889139.pdf
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/give-free-robux_GM431946152.pdf
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-2021-easy_GM431946152.pdf
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/free-spin-and-coin-links_GM406889139.pdf
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/minecraft-education-edition-free_GM479516143.pdf
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/coin-master-hack-spins-download_GM406889139.pdf
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/coin-master-free-spin-today-2021_GM406889139.pdf
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/free-roblox-accounts-with-robux-2021_GM431946152.pdf
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/free-robux-stream_GM431946152.pdf
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/try-minecraft-free_GM479516143.pdf
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/minecraft-free-download-mac-full-version-2021_GM479516143.pdf
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/free-robux-games-that-actually-work-2021_GM431946152.pdf
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-may-2021_GM406889139.pdf
    • http://e-learning.mtsn4bombana.sch.id/__statics/gudangsoal/files/minecraft-bedrock-edition-pc-free_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004bf2.bin
d560e6a04c35e17c7ef21ad1054a781e08af8716d07fe322588f3a0e411151bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4BF2 24532 bytes
font_01_sfnt_off000082b7.bin
48872130680f0d6309128a4b322cbb0730700ec4544966fd5aa3d357de7636d5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82B7 17980 bytes

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