PDF static analysis report

Static analysis result for SHA-256 f94c8c4df3ce7f53…

SUSPICIOUS

PDF

42.2 KB Created: 2021-05-11 04:42:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: d5d9810340e5e1dce9e2dc334783f60b SHA-1: 166c4acec6ceace0a4d342cdcc6e1ee3115d0c09 SHA-256: f94c8c4df3ce7f531dbcef946dda27d862344904a12f50b56acdbd2d3f8240d2
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple embedded URLs and a heuristic firing for an external URI, all pointing towards a lure for game-related cheats. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of it being used to deliver a second-stage payload. The presence of a 'download button' heuristic further supports the malicious intent of tricking users into downloading potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/431946152/roebucks-on-roblox-game-hack PDF link annotation
    • http://libnh.stikesnh.ac.id/repository/master-coins-free_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/minecraft-free-play-no-download_GM479516143.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/lastrick-com-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/is-there-an-actual-hack-that-work-for-coin-master_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/robux-gainer_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/free-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/free-robux-no-verification-2021-android_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/moonactive-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/roblox-inappropriate-games_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/robux-game_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/earn-points-for-robux_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/minecraft-svg-free_GM479516143.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/how-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/fan-page-coin-master_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://libnh.stikesnh.ac.id/repository/free-robux-survey_GM431946152.pdfIn PDF document text
    • https://krnl.rocksIn 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
stream_003_off000049ab.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49AB 24916 bytes
SHA-256: bc4ca4860c9325c8f3d8f8f208a6c3720a8e3d0f994fcd628125635e0d865540
font_01_sfnt_off00008348.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8348 18096 bytes
SHA-256: 660f2ad6d064874c4042e66c51e1deb22834a2626620b3d43ba9bd9331fe9e6c

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