Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca2147aa35e9390b…

MALICIOUS

PDF

35.7 KB Created: 2021-06-27 01:56:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 34378744d8a2e0a079d046f56ec4b3ea SHA-1: bbcfca71d2226a3cd1965c29c8b6c09409533e37 SHA-256: ca2147aa35e9390b6a69c0e26330da46c934d97f2bac3d44c8428f1b6b74e1d2
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous embedded URLs and a "link farm" structure, indicating an attempt to direct users to external content. The document body, though partially corrupted, suggests a lure related to game cheats and free in-game items, aligning with phishing or scam tactics. The ML classifier strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/how-to-speed-hack-in-roblox-kick-off-game-hack
    • http://elibrary.smknesbu.sch.id/repository/how-do-you-get-free-roblox_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/coin-master-free-spins-and-coins-without-human-verification_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/coin-master-free-soins_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/how-to-hack-roblox-exp_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/try-minecraft-free_GM479516143.pdf
    • http://elibrary.smknesbu.sch.id/repository/como-descargar-hacks-para-atravesar-paredes-en-roblox_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-100-robux-2021_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/coin-master-free-foxy-food_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/cheat-codes-for-roblox-mad-paint-ball_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-robux-generator_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/how-to-hack-coin-master-ios-no-jailbreak_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-roblox-card-codes-2021_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/coin-master-332-apk-free-download_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/roblox-dr-benx-hacken_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-robux-on-iphone_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/how-to-get-admin-tab-on-roblox-free-robux_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/how-to-get-free-robux-on-phone_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/how-to-use-hacks-on-roblox-pet-sim-2_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-codes-for-roblox-deathrun_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-robux-card-codes-2021-december_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003313.bin
18560e913d31ab4bdedcf46b0036fb6d8aa3c64508d128e93a9156c3af5e501d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3313 22748 bytes
font_01_sfnt_off000065db.bin
11d2aa1c9cfdd89702a03c64273c86a0186be48036cd55077dcbce2dc21eff88		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65DB 19292 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.