Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fbec5f2015c7378…

MALICIOUS

PDF

34.7 KB Created: 2021-06-20 06:00:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: e51ce95ba784c40e4f6d6acf8da1547d SHA-1: 401356d671fdcea5fdf019d8343c8a409d1aeba4 SHA-256: 2fbec5f2015c737840ad3c83240f9c0b98681988f84c824e44f4d4aa69fc95cd
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external resources, including an IP address literal, all related to obtaining free items or hacks for popular games. The ML classifier strongly indicates maliciousness, and the presence of embedded URLs suggests an attempt to redirect the user to a malicious site or download a payload. No scripts were extracted, but the overall pattern is consistent with a phishing or malware distribution lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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/get-free-clothes-on-roblox-2021-game-hack PDF link annotation
    • http://183.91.70.11/repository/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfPDF link annotation
    • http://183.91.70.11/repository/how-to-get-free-robux-and-tix-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/coin-master-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/free-no-robux-account_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/how-to-get-free-admin-in-the-warzone-roblox_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/roblox-free-vip-server_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/coin-master-card-link-free_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/coin-master-hack-without-verification-or-downloading-apps_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/roblox-free-hack-download_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/free-robux-sites-2021_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/how-to-use-the-blackout-hack-on-roblox_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/coin-master-free-in-app-purchases-jailbreak_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/wahoogaming-co-free-robux_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000315e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x315E 21984 bytes
SHA-256: 3ad119cf9f1943cc5e6f3cd74fbf0b89f7ff5249370376f08d7daec55d39b3f5
font_01_sfnt_off000061d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61D9 19320 bytes
SHA-256: 9799064f656b5664766d0f146353efdaf0199c68ac301258af148f2a9f56dc60

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