Malicious PDF — malware analysis report

Static analysis result for SHA-256 92486e13a254504d…

MALICIOUS

PDF

34.4 KB Created: 2021-06-18 05:29:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 7346c2d1f52c5061fb55d6f50fd5fdf5 SHA-1: b4b6b4131934bf7064fb02edbb213d700b8319f3 SHA-256: 92486e13a254504df558ef74b7ba03790f7ad9e4c8a25bbbc1c807ce354a9e95
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs, many of which are part of a link farm designed to appear as search engine results for game hacks and cheats. The document body and extracted URLs suggest a lure for users seeking to obtain in-game currency or hacks, likely leading to malware downloads or phishing sites. No scripts were extracted, but the PDF structure and extensive URL list indicate a malicious intent to redirect users to external, potentially harmful content.

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.co/app/431946152/the-conquerors-roblox-pre-hacked-game-hack PDF link annotation
    • http://sbm-nn.ru/images/rare-free-links-to-coin-master_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/how-to-hack-robux-no-survey_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/get-2021-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/adf-ly-hack-roblox_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/free-roblox-gun-gsmes_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/descargar-hacks-de-roblox-nuevos_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/real-working-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/free-robux-accounts-2021_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/roblox-how-to-get-free-robux-in-seconds-2021_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/como-sacar-buen-puntaje-en-juego-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/roblox-free-play-no-downloa_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/roblox-how-to-use-cheat-engine-2021_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/minecraft-fly-hack_GM479516143.pdfIn PDF document text
    • http://sbm-nn.ru/images/how-to-get-free-robux-2021-no-downloading_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://sbm-nn.ru/images/free-spins-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://sbm-nn.ru/images/free-robux-quiz_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_off00002e5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E5D 22568 bytes
SHA-256: fd1fb49e41cfd93c2a1bfef88bec91042d46e2ffbaf1c70b3f9b03401f5dfbe9
font_01_sfnt_off000060d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60D2 19276 bytes
SHA-256: 6675c240dfc550dabfbb7cb0550c5c1f53aa2ac6259e9bdf82daf4764cd8a181

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