PDF static analysis report

Static analysis result for SHA-256 24d58cbce3cfc613…

SUSPICIOUS

PDF

34.8 KB Created: 2021-06-29 09:28:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 6e31025f0a0480f51a80b5b395f2146b SHA-1: db43cc23fda6664945686139b15fd303c64ad127 SHA-256: 24d58cbce3cfc6136982554f65a6a10b6eebfa6011e72a8fc1d5cad16e3bee75
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous embedded URLs and a prominent external URI pointing to a site offering 'free Robux' and 'free spins'. The ML classifier strongly flagged this PDF as malicious, and the presence of these lures suggests an attempt to trick users into downloading a second-stage payload. No scripts were extracted from this sample, limiting the ability to determine the exact nature of the 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.co/app/431946152/roblox-codes-for-free-robux-2021-game-hack PDF link annotation
    • https://xiangquan.com.tw/image/data/files/earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/today-coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/coin-master-free-spins-2021-blogspot_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-400-spins-coins-master_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/robux-sites_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/how-to-use-inspect-element-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-roblox-money_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/roblox-free-exploits_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/roblox-pet-sim-hack_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/roblox-high-school-2-hacks_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/how-to-get-free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-minecraft-maps-pe_GM479516143.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/como-ser-un-troleardor-en-roblox-sin-ser-hacker_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/roblox-apocalypse-rising-spawn-hack-2021_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/hacks-to-get-money-on-roblox-adopt-me_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/make-roblox-shirt-free_GM431946152.pdfIn PDF document text
    • https://xiangquan.com.tw/image/data/files/codes-to-get-free-robux_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_off00003060.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3060 22288 bytes
SHA-256: b98f5b719e58cc4d6f24ecc093604bdf725b04ad90461d8ac672b8ea409a0fba
font_01_sfnt_off000061f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61F3 19364 bytes
SHA-256: 8440705bbf3e920486e4d0f4ff884ff35e8ad14fd2663be62da29a1cc5c75b26