Malicious PDF — malware analysis report

Static analysis result for SHA-256 027de2f5774428d7…

MALICIOUS

PDF

37.1 KB Created: 2021-07-04 01:15:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 7e77d19d7ba24e44124653c6767c8af4 SHA-1: aabe3306116ada8468d5602fb9fd466975e0ca55 SHA-256: 027de2f5774428d746a2db55f3099963bcf61af07d7ff76dc9e3bdfc20ca8941
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document contains multiple embedded URLs and a prominent external URI pointing to a site offering a 'Roblox Free Clothes Generator'. This, combined with the ML classifier's high confidence, indicates a phishing or malware distribution attempt. The document body, though partially garbled, contains text related to Roblox and a URL, reinforcing the lure to download an application.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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/431946152/roblox-free-clothes-generator-game-hack
    • http://opac.akafarma-aceh.ac.id/repository/coin-master-no-download-app-but-play-for-free_GM406889139.pdf
    • http://opac.akafarma-aceh.ac.id/repository/roblox-hack-site_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/how-to-get-minecraft-dungeons-for-free_GM479516143.pdf
    • http://opac.akafarma-aceh.ac.id/repository/how-to-hack-someones-account-on-roblox_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/free-outfits-roblox-names_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/free-minecraft-accounts-2021_GM479516143.pdf
    • http://opac.akafarma-aceh.ac.id/repository/easy-robux-cheat_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/will-minecraft-dungeons-be-free_GM479516143.pdf
    • http://opac.akafarma-aceh.ac.id/repository/btools-roblox-hack-2021_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/free-coin-master-cards_GM406889139.pdf
    • http://opac.akafarma-aceh.ac.id/repository/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdf
    • http://opac.akafarma-aceh.ac.id/repository/roblox-hacks-robux-2021_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/promo-code-free-robux_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/free-robux-scams-reddit_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/roblox-free-robux-2021-august_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/free-robux-codes-2021-online_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/www-roblox-com-robux-free_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/free-levitation-animation-roblox_GM431946152.pdf
    • http://opac.akafarma-aceh.ac.id/repository/give-free-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003b28.bin
e3cc4dde8a71e5948635e77e85806f8060c8f10d03847f0bba4a7602e20c602f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3B28 22292 bytes
font_01_sfnt_off00006c91.bin
168b44f383469b980ccfd12afc6a57c15e96a954b5575884cb06f059eb884acb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C91 18920 bytes

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