Malicious PDF — malware analysis report

Static analysis result for SHA-256 546e73f465441200…

MALICIOUS

PDF

34.2 KB Created: 2021-07-04 02:52:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 9afaedc4c825a083755eda4c24f58b5e SHA-1: db4a7fa56d615cdb078fe9aca18fa3fc6dec5f99 SHA-256: 546e73f4654412006a827d1893af9da9d1748f8e48eb80c73eee5b5919b72955
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a known malicious redirector, disguised as generators for game hacks and currency. The primary lure is 'Coin Master Hack Pro Gamers', directing users to 'http://netcdn.tw/app/406889139/coin-master-hack-pro-gamers-game-hack'. This indicates a phishing or scam attempt designed to lead users to potentially harmful content or further malicious downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/coin-master-hack-pro-gamers-game-hack In PDF document text
    • http://ggmtc.net/userfiles/files/how-to-get-free-robux-on-roblox-using-cheat-engine_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/robux-robux_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/links-for-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coinmaster-twitter_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/roblox-boku-no-hero-academia-hack_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/minecraft-maps-pe-free-download_GM479516143.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/get-free-roblox-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/minecraft-free-minecoins_GM479516143.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/minecraft-pe-free-apk_GM479516143.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-free-spins-facebook_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/minecraft-java-free-download_GM479516143.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/free-robux-clothes_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/roblox-hack-that-works-jailbreak_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/robux-hack_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-free-spin-facebook-link_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/roblox-wanted-cheat_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-hack-without-human-verification-2021_GM406889139.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
font_00_sfnt_off00002e1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E1F 23300 bytes
SHA-256: 8695b22bc305539829f7927446bb972184b718d8b1be7d3ab7e6cf0e6fc4ab93
font_01_sfnt_off000062a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62A8 18416 bytes
SHA-256: 42eb204123647df6f85ca188dd99f1d84b9bafa3d0fb5c7709fcc50fb0944608

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