PDF static analysis report

Static analysis result for SHA-256 de13422ebfe041ba…

SUSPICIOUS

PDF

34.7 KB Created: 2021-07-05 03:50:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: e0ec56fbed07b1b6fbca494784f859bd SHA-1: bb18bd50dd2ecb7151499e7afbe6fe47c88b0eb4 SHA-256: de13422ebfe041ba3a71bb42b99cba6a40af5cea836730aba2f47fc40be59f59
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and text that directly advertise "free Robux" and "game hacks" for popular games, strongly suggesting a phishing or scam lure. The ML classifier also flagged this PDF as malicious with high confidence. The primary malicious URL identified is http://netcdn.tw/app/431946152/get-free-robux-game-hack, which is likely the download destination for a second-stage payload.

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.tw/app/431946152/get-free-robux-game-hack PDF link annotation
    • https://healthcare.kyst.com.tw/image/data/files/roblox-get-free-plus-on-meep-city-working-2021_GM431946152.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/hacking-apps-for-roblox_GM431946152.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/roblox-money-hack_GM431946152.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/roblox-wings-codes-free_GM431946152.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/easy-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/como-hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/how-do-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/free-admin-commands-in-roblox_GM431946152.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/blox-fun-info_GM431946152.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/hack-para-roblox-final-stand_GM431946152.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/roblox-free-wings_GM431946152.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/roblox-ninja-head-for-free_GM431946152.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/free-minecraft-java-code_GM479516143.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/how-to-get-free-minecraft-alts_GM479516143.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/roblox-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/pubg-uc-zain_GM1330123889.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/moonactive-free-spins_GM406889139.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/roblox-how-to-get-any-gamepass-for-free-2021_GM431946152.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/hack-script-copy-and-paste-roblox_GM431946152.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_off0000305b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x305B 22724 bytes
SHA-256: 47ba7d318fb0bea186b6c5a0ba95ae996a239f68f48834a92b9993ae9f11a228
font_01_sfnt_off00006364.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6364 18820 bytes
SHA-256: 04d56578d6fa3a791f42370f0ef4c3dea66af1fdc194d67c4390c65d423efb6d

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