PDF static analysis report

Static analysis result for SHA-256 1e552f6d60c703c0…

SUSPICIOUS

PDF

34.0 KB Created: 2021-07-01 22:02:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 7c1f43a6ded0dfb40fa483f338a45809 SHA-1: 17152f06198e3686281ff62dfba4a5afcd0679b8 SHA-256: 1e552f6d60c703c08edbe318a1f750afece3bc8b110851137a8d900d4754cc65
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and a call-to-action phrase, strongly suggesting a lure to download malicious content. The ML classifier also flagged this PDF with high confidence. The primary URL, http://netcdn.co/app/431946152/free-roblox-admin-codes-game-hack, is likely the destination for the payload. No scripts were extracted from this sample.

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-roblox-admin-codes-game-hack PDF link annotation
    • https://edu.kyst.com.tw/image/data/files/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://edu.kyst.com.tw/image/data/files/coin-master-free-spins-and-free-coins_GM406889139.pdfIn PDF document text
    • https://edu.kyst.com.tw/image/data/files/free-hair-roblox_GM431946152.pdfIn PDF document text
    • https://edu.kyst.com.tw/image/data/files/free-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://edu.kyst.com.tw/image/data/files/minecraft-client_GM479516143.pdfIn PDF document text
    • https://edu.kyst.com.tw/image/data/files/free-minecraft-skin-maker_GM479516143.pdfIn PDF document text
    • https://edu.kyst.com.tw/image/data/files/how-to-hack-rpg-games-roblox_GM431946152.pdfIn PDF document text
    • https://edu.kyst.com.tw/image/data/files/free-minecraft-client_GM479516143.pdfIn PDF document text
    • https://edu.kyst.com.tw/image/data/files/150-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://edu.kyst.com.tw/image/data/files/roblox-robux-hack-pc_GM431946152.pdfIn PDF document text
    • https://edu.kyst.com.tw/image/data/files/minecraft-story-mode-free_GM479516143.pdfIn PDF document text
    • https://edu.kyst.com.tw/image/data/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://edu.kyst.com.tw/image/data/files/minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://edu.kyst.com.tw/image/data/files/hack-coin-master-343-apk_GM406889139.pdfIn PDF document text
    • https://edu.kyst.com.tw/image/data/files/coin-master-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • https://edu.kyst.com.tw/image/data/files/how-to-hack-anyone-account-on-roblox_GM431946152.pdfIn PDF document text
    • https://edu.kyst.com.tw/image/data/files/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://edu.kyst.com.tw/image/data/files/free-apk-mods-coin-master_GM406889139.pdfIn PDF document text
    • https://edu.kyst.com.tw/image/data/files/roblox-script-hack_GM431946152.pdfIn PDF document text
    • https://edu.kyst.com.tw/image/data/files/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F0A 21780 bytes
SHA-256: 7098c1578bb5ac43037200fa2ee69bcf09a8d308469d0efeca8e4d1fa5957232
font_01_sfnt_off00005f46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F46 19204 bytes
SHA-256: 5d0204b5a285cb37e2a132c9f7f03854188f2e766c2883a0735d7c47238102cb