PDF static analysis report

Static analysis result for SHA-256 5793b4e477ce1079…

SUSPICIOUS

PDF

45.0 KB Created: 2021-06-11 11:52:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: ecafe6b987c215386419ed57898691c8 SHA-1: 172e1dd1743817d9c3e250350160e5a89beda8e5 SHA-256: 5793b4e477ce10792bebe1d16f8404ac246923b22f0759f6e0c5680a38cf1915
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded URLs and a heuristic firing for an external URI, all pointing to sites offering game hacks and rewards. The ML classifier also flagged this PDF as malicious with high confidence. The document body, though corrupted, contains text related to 'Roblox Hack' and a URL, reinforcing the lure. The presence of embedded URLs suggests an attempt to redirect the user to download a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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/feed-your-pets-roblox-hack-game-hack PDF link annotation
    • http://lib.vipklh.ru/repository/coin-master-rewards_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/coin-master-heaven-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/roblox-strucid-battle-royale-aimbot-hack_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/coin-master-hack-download-apk_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/free-robux-without-verify_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/coin-master-coin-link_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/free-robux-websites-that-work_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/coin-master-tricks_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/roblox-super-power-training-simulator-hack-2021_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/download-minecraft-free-hiapphere_GM479516143.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/free-dll-scripts-for-roblox_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/free-spins-coin-master-links-blogspot_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/hack-grynny-roblox_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/roblox-hacking-website_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/hack-nuevo-para-roblox_GM431946152.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/no-verification-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.vipklh.ru/repository/roblox-i-got-hacked-again_GM431946152.pdfIn 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_004_off00004fe4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4FE4 25760 bytes
SHA-256: 8bce544e34a04a4e21ff6dfca6b1386ce6d1944eb0242c8bfbc64bbc0fa1285c
font_01_sfnt_off00008b19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B19 19080 bytes
SHA-256: a6b741a90934391a9b704b749b5bd46c929d007b67828a2600384e759460ca99

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