PDF static analysis report

Static analysis result for SHA-256 d3ff095dd1887223…

SUSPICIOUS

PDF

49.2 KB Created: 2021-06-11 03:02:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: c523b65b539f8c73fa74e874601fb5f3 SHA-1: 5e00b6625a323359e88f9089e1c8d1e59cdcea76 SHA-256: d3ff095dd1887223df44414fadc3c5c907d1b94c4dda5ad4f5ec34d8dcce76c5
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and a visual download button lure, suggesting it is designed to trick users into downloading a secondary payload. The document body explicitly mentions 'Free Robux' and includes a URL pointing to a potential exploit or malware download. While no scripts were directly extracted, the presence of external URIs and the ML classifier's high confidence score indicate malicious intent, likely related to a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.tw/app/431946152/free-robux-june-2021-game-hack PDF link annotation
    • https://hekl-software.de/images/free-robux-no-scam_GM431946152.pdfIn PDF document text
    • https://hekl-software.de/images/coin-master-daily-free-spins-link-app_GM406889139.pdfIn PDF document text
    • https://hekl-software.de/images/minecraft-bedrock-free_GM479516143.pdfIn PDF document text
    • https://hekl-software.de/images/free-robux_GM431946152.pdfIn PDF document text
    • https://hekl-software.de/images/free-roblox-no-plsy-stor_GM431946152.pdfIn PDF document text
    • https://hekl-software.de/images/ac-market-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://hekl-software.de/images/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://hekl-software.de/images/minecraft-free-android_GM479516143.pdfIn PDF document text
    • https://hekl-software.de/images/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://hekl-software.de/images/roblox-ninja-simulator-2-cheat-engine_GM431946152.pdfIn PDF document text
    • https://hekl-software.de/images/coin-master-free-spin-2912-2021_GM406889139.pdfIn PDF document text
    • https://hekl-software.de/images/minecraft-free-trial_GM479516143.pdfIn PDF document text
    • https://hekl-software.de/images/how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://hekl-software.de/images/robux-free-online_GM431946152.pdfIn PDF document text
    • https://hekl-software.de/images/how-to-download-minecraft-for-free-on-android_GM479516143.pdfIn PDF document text
    • https://hekl-software.de/images/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • https://hekl-software.de/images/freespincoin-masterlinkdownload_GM406889139.pdfIn PDF document text
    • https://hekl-software.de/images/is-roblox-studio-free_GM431946152.pdfIn PDF document text
    • https://hekl-software.de/images/minecraft-cracked-client_GM479516143.pdfIn PDF document text
    • https://hekl-software.de/images/links-for-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005106.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5106 25544 bytes
SHA-256: e916be86f204933deba5290238320873c62931d66fa272bd5975ce82417abafa
font_01_sfnt_off00008c93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C93 6700 bytes
SHA-256: ae114634718854704d615808d33fb1b747d90eb28e420080bd5adbdfe7fb6a27
font_02_sfnt_off00009cd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CD0 18580 bytes
SHA-256: e452689177de68b6880b9aa379a752394d6a62728a8e93b362a150ec9b416bfc