PDF static analysis report

Static analysis result for SHA-256 cb272c16bf681e06…

SUSPICIOUS

PDF

48.3 KB Created: 2021-06-11 09:59:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 1c98b294ecbd6d439e8fee9effef0aef SHA-1: 2320b76955fe6162239d3dfc8ba604a194f71238 SHA-256: cb272c16bf681e06aa1637ce3bc9bcf2c3df46f2c8dbd2683a8852338e66d2fc
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a lure related to obtaining free Robux, a common tactic for scams. It embeds multiple URLs pointing to potentially malicious content, including one directly linked to a download page. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of malicious intent. No scripts were extracted, but the presence of embedded URLs and the nature of the lure suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9871

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/hwo-to-get-free-robux-with-out-password-or-hacking-game-hack PDF link annotation
    • https://cnc-xinrong.com.tw/image/data/files/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/coin-master-links-that-don-t-expire_GM406889139.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/free-robux-site_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/minecraft-mac-free_GM479516143.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/coin-master-vip-hack_GM406889139.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/robux-scam_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/free-minecraft-survival-server_GM479516143.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/is-roblox-hacked_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/free-spins-and-coins-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/ways-to-get-robux_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/roblox-arsenal-hacks-download_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/how-to-get-free-roblox-without-verification_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/how-to-get-free-robux-instantly_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/free-robux-no-verify_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/roblox-counter-blox-hack-aimbot-wallhack_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/roblox-redeem-robux_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/wahoo-gaming-co-free-robux_GM431946152.pdfIn PDF document text
    • https://cnc-xinrong.com.tw/image/data/files/coin-master-links-free-spins_GM406889139.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000051d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51D5 31620 bytes
SHA-256: 5de3812cda3ed3c0c4e70166fa71cfb73b70767f1033ea6ce51eb033608b8f6f
font_01_sfnt_off00009616.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9616 19780 bytes
SHA-256: 7e2b8fbd41e29a2fbdbfd302cb7689070761d4e0e87393066d28b319731d608c

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