PDF static analysis report

Static analysis result for SHA-256 51d89d0661365951…

SUSPICIOUS

PDF

37.9 KB Created: 2021-05-24 00:52:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 8743bb9a592b4650c7bf7b5aac49b4c7 SHA-1: 65fdc00e012c86470dc1532b09c81a039caa91a5 SHA-256: 51d89d066136595134a2e8741b6ddab04cb9004a0f34e6b007275d4e654d4e50
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and text promoting a "Free Robux Survey" and "Roblox Generator", indicating a phishing or scam attempt. The presence of a visual download button lure and a high-confidence ML classifier flagging the PDF as malicious further supports this. While no scripts were explicitly extracted, the document's structure and embedded URLs suggest it is designed to redirect users to malicious websites, potentially for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7010

Heuristics 3

  • 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 https://netcdn.xyz/app/431946152/free-robux-survey-game-hack PDF link annotation
    • https://www.contabilidadesomma.com.br/images/hack-tiktok-fans-free_GM835599320.pdfIn PDF document text
    • https://www.contabilidadesomma.com.br/images/coin-master-spin-hack-apk_GM406889139.pdfIn PDF document text
    • https://www.contabilidadesomma.com.br/images/coin-master-hacks-for-free-spins_GM406889139.pdfIn PDF document text
    • https://www.contabilidadesomma.com.br/images/minecraft-anarchy-server-no-hacks_GM479516143.pdfIn PDF document text
    • https://www.contabilidadesomma.com.br/images/minecraft-hacks-xbox-one_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003026.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3026 24544 bytes
SHA-256: 3db453469be82916c987e825a692974d92b4e995959c0032f68ac23177f401b6
font_01_sfnt_off00006842.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6842 2912 bytes
SHA-256: 02b35010e2614e3cc95ac6414c49295350c91fdfcc4b4cad27ffdbc10e80df7f
font_02_sfnt_off0000723f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x723F 18308 bytes
SHA-256: 74a940f1217583ab80956cd168fb81f959241543e2b3413e790743682303989f

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