PDF static analysis report

Static analysis result for SHA-256 712b712555f36754…

SUSPICIOUS

PDF

50.8 KB Created: 2021-06-09 16:28:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 455d6963ecb4c37f989869ece237f6dd SHA-1: 0454990e96c59fd354195874e0f0b5df63bd810b SHA-256: 712b712555f3675443665199577807abf9e49f953fb2762afc24a584bd5bd33e
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links and a visual call-to-action, suggesting a phishing or social engineering attempt. The ML classifier strongly flagged this PDF as malicious, and the presence of external URLs indicates an attempt to redirect the user to download potentially harmful content. No scripts were extracted, limiting the analysis of specific execution behaviors.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9779

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-auto-clicker-for-roblox-mac-game-hack PDF link annotation
    • http://elib-s2.ubl.ac.id/repository/free-robux-20210_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/free-roblox-hack_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/free-robux-promo-codes-2021-may_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/alfheim-online-roblox-hack_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/minecraft-toys-for-free_GM479516143.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/how-to-hack-roblox-accounts-ios_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/roblox-jailbreak-money-hack-2021_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/free-robux-giveaway-live-now-2021_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/inside-the-world-of-roblox-free_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/how-do-i-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/roblox-city-free-game_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • http://elib-s2.ubl.ac.id/repository/minecraft-hacks-wurst_GM479516143.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
stream_004_off00004e86.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4E86 32720 bytes
SHA-256: 1621d83b496df5a0f3631a291553ce3b7391281a74f5d317b6cd57e32142d09e
font_01_sfnt_off00009883.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9883 2824 bytes
SHA-256: 94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4
font_02_sfnt_off0000a232.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA232 18904 bytes
SHA-256: df4832530f7dd45e3ebc7a05d42ba324fcc3ed1d0055d8d53d236bb443de1927