Malicious PDF — malware analysis report

Static analysis result for SHA-256 df2289aedd0ee78b…

MALICIOUS

PDF

34.9 KB Created: 2021-07-05 22:01:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: fa5972535df3e22a07c5a55690fd3d14 SHA-1: 1373abad55e3e89a9c9930b895e01c864ca51d79 SHA-256: df2289aedd0ee78be8600a2154872fdf33c21806e68b8ec1b5e1e19dc1bf4ba0
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a link farm, all pointing to websites offering game cheats and hacks for popular games like Coin Master and Roblox. The document body text also includes these URLs, suggesting a lure to download malicious content or engage in phishing. The ML classifier strongly flagged this PDF as malicious, and the presence of many external links indicates a potential attempt to distribute malware or redirect users to phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/406889139/how-do-you-get-free-coins-in-coin-master-game-hack
    • https://fib.ub.ac.id/sac/repository/how-to-get-a-refund-on-roblox-2021_GM431946152.pdf
    • https://fib.ub.ac.id/sac/repository/free-spin-coin-master-iphone_GM406889139.pdf
    • https://fib.ub.ac.id/sac/repository/inyector-de-hacks-para-roblox_GM431946152.pdf
    • https://fib.ub.ac.id/sac/repository/roblox-cheat-injector_GM431946152.pdf
    • https://fib.ub.ac.id/sac/repository/radio-cheat-roblox-skript_GM431946152.pdf
    • https://fib.ub.ac.id/sac/repository/get-free-robux-without-doing-anything_GM431946152.pdf
    • https://fib.ub.ac.id/sac//repository/get-free-spins-on-coin-master_GM406889139.pdf
    • https://fib.ub.ac.id/sac/repository/conseguir-robux-gratis-hack-inspeccionar_GM431946152.pdf
    • https://fib.ub.ac.id/sac//repository/rbxfree-com-free-robux_GM431946152.pdf
    • https://fib.ub.ac.id/sac/repository/https-iosgodscom-topic-20213projectrobloxhackbeta-page5_GM431946152.pdf
    • https://fib.ub.ac.id/sac/repository/how-to-become-a-hacker-in-roblox_GM431946152.pdf
    • https://fib.ub.ac.id/sac/repository/a-lot-of-robux_GM431946152.pdf
    • https://fib.ub.ac.id/sac/repository/i-hacked-fgteev-duddys-account-roblox_GM431946152.pdf
    • https://fib.ub.ac.id/sac/repository/como-recuperar-una-cuenta-de-roblox-hackeada_GM431946152.pdf
    • https://fib.ub.ac.id/sac/repository/blogspot-free-spins-coin-master_GM406889139.pdf
    • https://fib.ub.ac.id/sac/repository/roblox-full-throttle-hack_GM431946152.pdf
    • https://fib.ub.ac.id/sac/repository/free-robux-gen_GM431946152.pdf
    • https://fib.ub.ac.id/sac//repository/how-do-you-get-free-roblox-money_GM431946152.pdf
    • https://fib.ub.ac.id/sac/repository/free-robux-com-2021_GM431946152.pdf
    • https://fib.ub.ac.id/sac/repository/free-roblox-characters_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003296.bin
1c2a764a2a13338379a51aa102179cd4dba738595ea50fbe5212372db77aa216		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3296 22680 bytes
font_01_sfnt_off000064ea.bin
2abc8992619921ee6f6a540de8a101266f6da6b5d00d63d7d50b9c09c57ae372		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64EA 18632 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.