Malicious PDF — malware analysis report

Static analysis result for SHA-256 07564cd6734763a9…

MALICIOUS

PDF

34.4 KB Created: 2021-07-04 13:47:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 6c2128009f3d14e3e3dea194e7eea43b SHA-1: deafb60c7bb08bbbfdf159e1a33ec63352f81ac7 SHA-256: 07564cd6734763a93e243f9322305b31631660bf76a581fecc4656c3bb302fe8
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and exhibits characteristics of a link farm, suggesting an attempt to manipulate search engine results or redirect users to malicious content. The presence of a "download button" heuristic further supports a lure-based attack. While no scripts were explicitly extracted, the overall structure and embedded links indicate a malicious intent to lead the user to external resources, likely for further exploitation or malware delivery.

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.tw/app/431946152/free-robux-thumbnail-game-hack
    • http://library.fikes.upnvj.ac.id/repository/coin-master-event-hack_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/coin-master-hack-online-download_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/roblox-free-robux-hack_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/how-to-hack-tycoon-money-on-roblox-2021_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/coin-master-free-spins-cheat_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/moonactive-free-spins-coin-master_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/coin-master-hack-tool-2021_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/coin-master-claim-spins_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/blogger-free-spins-and-coins_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/coin-master-free-spins-link-deutsch-ios_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/robux-free-roblox-code-2021_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/apps-to-hack-coin-master_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/coin-master-free-spins-today-daily-links_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/how-to-get-free-spins-on-coin-master-facebook_GM406889139.pdf
    • http://library.fikes.upnvj.ac.id/repository/minecraft-education-edition-free-download_GM479516143.pdf
    • http://library.fikes.upnvj.ac.id/repository/free-items-code-on-roblox-catalog_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/how-to-get-free-robux-real-not-fake_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/free-unlimited-money-on-roblox-pool-tycoon-4_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/hack-to-get-levels-in-elemental-wars-on-roblox_GM431946152.pdf
    • http://library.fikes.upnvj.ac.id/repository/minecraft-redeem-code-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_off00002ede.bin
b4537105729ef0dadb693ef41300721c5058e04304e3f689f89d1ec92d669383
pdf-font-stream PDF embedded font (sfnt) at offset 0x2EDE 22564 bytes
font_01_sfnt_off000060d0.bin
adbfa614176d12f8fda67e6e8d5b73dbc28431768a4cac05a3d314a7f167f1c3
pdf-font-stream PDF embedded font (sfnt) at offset 0x60D0 19336 bytes