PDF static analysis report

Static analysis result for SHA-256 cf5fcb8d2353c191…

SUSPICIOUS

PDF

34.2 KB Created: 2021-06-21 00:13:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: b120aa772eb31a5dd81fb3128d0e74cd SHA-1: bfdaf0c0fd3ac86cd6be027e3dcba997db97b50d SHA-256: cf5fcb8d2353c1912671ef5d1dc39d58fa209bb0ca7e73516c987d392f651454
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document body and embedded URLs indicate a lure for 'Free Robux' and game hacks, a common social engineering tactic. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs suggests it is designed to redirect users to potentially harmful content. No scripts were extracted from this sample, limiting the analysis of its execution behavior.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/free-robux-no-human-verification.com-game-hack PDF link annotation
    • http://gc-sistemas.com.ar/images/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/roblox-free-rubox_GM431946152.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/free-black-hair-in-roblox_GM431946152.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/robux-free-online_GM431946152.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/roblox-free-robux-no-apps_GM431946152.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/free-robux-place_GM431946152.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/oprewards-com-earn_GM431946152.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/how-to-look-cool-on-roblox-free_GM431946152.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/nuevo-hack-16sept-generador-de-robux-by-piignoiise_GM431946152.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/spins-coin-master_GM406889139.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/sword-fighting-roblox-game-free-to-copy_GM431946152.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/roblox-brick-cars-cheats-code_GM431946152.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/coin-master-free-gold-cards-link-2021ee-spins_GM406889139.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/roblox-tampermonkey-hack_GM431946152.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/coin-master-free-spin-link-app_GM406889139.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/free-coins-and-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/hacks-roblox_GM431946152.pdfIn PDF document text
    • http://gc-sistemas.com.ar/images/download-roblox-hack-pc_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 7

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F3F 21876 bytes
SHA-256: 3d65df9f909a5336751944fecbbaaf82105d722328b50ef7e4f88bbdc21081f0
font_01_sfnt_off00005fa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FA2 19400 bytes
SHA-256: e6f30237fd78f0e04431f37b295aaefd80b5f49a983c5965a09411f6ea274e75

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