Malicious PDF — malware analysis report

Static analysis result for SHA-256 c60347bb1f8d26ab…

MALICIOUS

PDF

35.5 KB Created: 2021-07-05 10:03:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: a7951ced9a032dfc9e039e6d5d519372 SHA-1: 5b8db82bd0664f6fd0fb4b19e6705f23cf393b82 SHA-256: c60347bb1f8d26ab792200fd7fd50eabb5e1b288d331d28ed62d7a671c99ec6c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and free generators, as indicated by the document body and high-severity heuristics. It contains numerous embedded URLs pointing to sites offering cheats and downloads for popular games. The primary malicious URL identified is http://netcdn.tw/app/406889139/se-puede-hackear-coin-master-game-hack, which likely serves as a redirector to a malicious payload or phishing page. No scripts were extracted, but the PDF structure and embedded links suggest a social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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.tw/app/406889139/se-puede-hackear-coin-master-game-hack PDF link annotation
    • http://www.pspmrsmkklawang.com/opac/repository/roblox-rs-cheat-2021_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/minecraft-pe-free-download-ios-no-jailbreak_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/minecraft-ps3-free-download_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/anti-ban-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/roblox-free-dominus-download_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/spin-free-coin-master_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/roblox-hack-sharder_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/how-to-get-free-robux-from-roblox-2021_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/free-robux-generator-no-download-no-verification_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/roblox-clover-online-hack_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/how-to-setup-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/how-to-hack-one-piece-grand-roblox_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/how-to-get-2021-robux-free_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/free-roblox-shirt-creator_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/roblox-vip-pass-free_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/como-instalar-hackear-para-roblox-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/roblox-booga-booga-fly-hack-may-26-2021_GM431946152.pdfIn PDF document text
    • http://www.pspmrsmkklawang.com/opac/repository/free-robux-codes-2021_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
stream_002_off00003351.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3351 23256 bytes
SHA-256: 1c64f4641e285fa359fcbf259ff69c74006cb969827f806d452a4355ef5949ed
font_01_sfnt_off00006777.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6777 18472 bytes
SHA-256: e5740f0ed58e13a3d9045bf65c0b8a8b544c8b7064c4982ad243504192595383