Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d11e3e28262014c…

MALICIOUS

PDF

34.1 KB Created: 2021-07-06 11:37:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: ce00b4935d258a7f09042a449f7fea8b SHA-1: 9c1d9fe272bbb600fea372bbe31090d753692108 SHA-256: 5d11e3e28262014c4c7e12f856ac4037cb85adb53d2742750b73fd41f3c33c4e
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs that lead to websites offering 'hacks' or 'free spins' for games, indicating a phishing or scam attempt. The ML classifier also flagged this PDF as malicious. While no scripts were directly extracted, the PDF structure and embedded links suggest an attempt to redirect users to malicious sites, likely for credential harvesting 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/406889139/how-do-you-get-free-daily-spins-on-coin-master-game-hack
    • http://ebook.itn.ac.id/repository/haktuts-coin-master-free-daily-spins_GM406889139.pdf
    • http://ebook.itn.ac.id/repository/is-coin-master-free_GM406889139.pdf
    • http://ebook.itn.ac.id/repository/how-many-levels-are-in-coin-master_GM406889139.pdf
    • http://ebook.itn.ac.id/repository/how-to-hack-coin-master-pc_GM406889139.pdf
    • http://ebook.itn.ac.id/repository/coin-master-game-hack-link_GM406889139.pdf
    • http://ebook.itn.ac.id/repository/coin-master-game-hacking_GM406889139.pdf
    • http://ebook.itn.ac.id/repository/coin-master-rare-cards-hack_GM406889139.pdf
    • http://ebook.itn.ac.id/repository/coin-master-gold-cards-hack-2021_GM406889139.pdf
    • http://ebook.itn.ac.id/repository/how-to-get-free-robux-easy_GM431946152.pdf
    • http://ebook.itn.ac.id/repository/free-robux-no-verification-2021-android_GM431946152.pdf
    • http://ebook.itn.ac.id/repository/free-robux-generator-no-human-verification-2021_GM431946152.pdf
    • http://ebook.itn.ac.id/repository/roblox-robux-hack-no-survey-2021_GM431946152.pdf
    • http://ebook.itn.ac.id/repository/where-tiktok-free-view-iphone-11_GM835599320.pdf
    • http://ebook.itn.ac.id/repository/how-to-get-free-roblox-clothing-no-hacks_GM431946152.pdf
    • http://ebook.itn.ac.id/repository/coin-master-how-to-get-japan-sushi-card-free_GM406889139.pdf
    • http://ebook.itn.ac.id/repository/roblox-games-with-free-vip-servers_GM431946152.pdf
    • http://ebook.itn.ac.id/repository/hacks-for-robux-on-pc_GM431946152.pdf
    • http://ebook.itn.ac.id/repository/minecraft-windows-10-edition-free-download_GM479516143.pdf
    • http://ebook.itn.ac.id/repository/free-robux-without-any-verification_GM431946152.pdf
    • http://ebook.itn.ac.id/repository/how-to-get-free-outfits-on-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f97.bin
0b1f7c526115f4fb5576c12add800ca9c17bbc74905254252928c3caee8af17e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2F97 22016 bytes
font_01_sfnt_off0000603f.bin
82c7586521f9216f0d63aa97b3519c48bea1185934e4759472a193b88cea26fc
pdf-font-stream PDF embedded font (sfnt) at offset 0x603F 19064 bytes