Malicious PDF — malware analysis report

Static analysis result for SHA-256 7514db3b708797df…

MALICIOUS

PDF

34.4 KB Created: 2021-06-19 04:04:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 34977faf5fe3e6a61b5910dffc32018d SHA-1: de79714bd71685c7903bc25f5552df69f38fbc30 SHA-256: 7514db3b708797df8f1a44ebddc0f7509deba692f70aab3ee95018cc20b96259
102 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs, many of which are structured as SEO-optimized links pointing to game-related cheats and hacks. The ML classifier strongly flagged this PDF as malicious, and the presence of a download button lure suggests an attempt to trick users into downloading a payload. The primary attack pattern involves social engineering through fake game cheats to facilitate the download of malicious content.

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/roblox-city-tycoon-2-cheats-game-hack PDF link annotation
    • http://opac.akafarma-aceh.ac.id/repository/how-to-get-free-spins-on-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/now-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/all-game-pass-hack-roblox_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/free-robux-genrator-no-human-ferfacon_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/hack-coin-master-dzooka_GM406889139.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/how-to-lvl-hack-in-naruto-final-bond-in-roblox_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/how-to-earn-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/roblox-creater-codes-to-get-you-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/free-100-robux_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/coin-master-fan-club_GM406889139.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/how-to-get-free-robux-website_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/free-robux-gift-card-generator_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/how-to-get-free-robux-hack-2021-pc_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/free-hotel-copy-with-cuffs-roblox_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/premium-softwares-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/minecraft-xbox-one-code-free_GM479516143.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/how-to-hack-roblox-for-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/cheat-engine-tricks-for-roblox_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/free-robux-gift-card-codes-2021-genertor_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002fe2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FE2 22064 bytes
SHA-256: 39bfd2a922ac3b094f71531a07d72ec9fb5139a4a466e22d7d36eebb0f4da253
font_01_sfnt_off000060ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60CE 19180 bytes
SHA-256: 784e86b92aeccb8e8dc04e546a841ecb6351b24db2d0b56aea285731eceaf52b

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