Malicious PDF — malware analysis report

Static analysis result for SHA-256 388fe0f148e54d86…

MALICIOUS

PDF

35.6 KB Created: 2021-07-05 19:01:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 641a9327b7c68faba1fb36cfdab5935b SHA-1: 6af75d3e087b36a4529b87a138a38bbdcc3cccc2 SHA-256: 388fe0f148e54d86394f2a80310ba4f89c800a2344451d8382a2dfe3866099f2
102 Risk Score

Malware Insights

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

The PDF document contains numerous links to external websites advertising hacks and generators for popular games, indicating a lure for users to download potentially malicious content. The ML classifier strongly flagged this PDF as malicious, and the presence of a large number of external links suggests a link farm designed to attract traffic. The document's content and structure are consistent with a phishing or malware distribution attempt.

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/roblox-adopt-me-hack-game-hack
    • http://stiepariperpus.web.id/sarjana/repository/how-to-get-free-robux-on-roblox-youtube_GM431946152.pdf
    • http://stiepariperpus.web.id/sarjana/repository/coin-master-daily-free-spins-link-2021_GM406889139.pdf
    • http://stiepariperpus.web.id/sarjana//repository/free-spins-coin-master-generator_GM406889139.pdf
    • http://stiepariperpus.web.id/sarjana/repository/roblox-sign-in-free_GM431946152.pdf
    • http://stiepariperpus.web.id/sarjana/repository/free-robux-hack-generator_GM431946152.pdf
    • http://stiepariperpus.web.id/sarjana/repository/how-to-hack-roblox-using-tampermonkey_GM431946152.pdf
    • http://stiepariperpus.web.id/sarjana/repository/roblox-island-life-paradise-hack_GM431946152.pdf
    • http://stiepariperpus.web.id/sarjana/repository/how-to-hack-roblox-using-xcode_GM431946152.pdf
    • http://stiepariperpus.web.id/sarjana/repository/hack-de-roblox-jailbreak-2021-dinero_GM431946152.pdf
    • http://stiepariperpus.web.id/sarjana/repository/coin-master-daily-free-spins-link-app-download_GM406889139.pdf
    • http://stiepariperpus.web.id/sarjana/repository/free-builders-club-accounts-on-roblox_GM431946152.pdf
    • http://stiepariperpus.web.id/sarjana//repository/get-free-robux-no-verification_GM431946152.pdf
    • http://stiepariperpus.web.id/sarjana/repository/roblox-how-to-increase-speed-using-cheat-engine_GM431946152.pdf
    • http://stiepariperpus.web.id/sarjana/repository/free-roblox-gift-card-generator_GM431946152.pdf
    • http://stiepariperpus.web.id/sarjana/repository/is-minecraft-bedrock-free_GM479516143.pdf
    • http://stiepariperpus.web.id/sarjana/repository/free-vip-server-for-roblox-dragon-rage_GM431946152.pdf
    • http://stiepariperpus.web.id/sarjana//repository/how-do-you-get-free-pet-food-in-coin-master_GM406889139.pdf
    • http://stiepariperpus.web.id/sarjana/repository/free-robux-hack-no-human-verification-and-no-survey-2021_GM431946152.pdf
    • http://stiepariperpus.web.id/sarjana//repository/get-me-free-robux_GM431946152.pdf
    • http://stiepariperpus.web.id/sarjana//repository/roblox-april-fools-hack_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000325a.bin
c493b2f56fef9d78a6daf78b891a920b823fbb7bfa27af952b137e3dc842483f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x325A 22792 bytes
font_01_sfnt_off0000657a.bin
1d6d529828a603e65e14b6285156acac3d11e3a25e7a00ad8dd7aee01cb73554		 pdf-font-stream PDF embedded font (sfnt) at offset 0x657A 19308 bytes

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