Malicious PDF — malware analysis report

Static analysis result for SHA-256 97ad84c624fe3798…

MALICIOUS

PDF

33.6 KB Created: 2021-06-26 04:27:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 858b2c676c287ee0fa440d2c468f6983 SHA-1: f35e4ce2cf7ad54618851ffbc6e683da277ec020 SHA-256: 97ad84c624fe379804081b8a8bb851c67d79d02148c2bf8969ed65f7c9e2c2b2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and generators, embedding multiple links to redirector infrastructure. The primary link, http://netcdn.co/app/431946152/roblox-hack-in-all-game-game-hack, is identified as malicious. The document body contains numerous additional URLs, likely part of the same malicious campaign, suggesting a phishing or malware distribution attempt.

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.co/app/431946152/roblox-hack-in-all-game-game-hack In PDF document text
    • https://7gking.tw/upload/files/coinmaster-spin-ml-link_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/como-hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/the-day-roblox-got-hacked_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/all-roblox-2021-free-tails_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/oprewards-com-login_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/hack-to-protect-village-on-coin-master_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/watch-ads-for-robux_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/minecraft-hacks-xbox-one_GM479516143.pdfIn PDF document text
    • https://7gking.tw/upload/files/facebook-cuentas-gratis-de-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/my-minecraft-account-was-hacked_GM479516143.pdfIn PDF document text
    • https://7gking.tw/upload/files/2021-roblox_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/hack-roblox-ccv3-particles-not-patched_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/roblox-avatar-tester_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/minecraft-for-ps3-free_GM479516143.pdfIn PDF document text
    • https://7gking.tw/upload/files/coin-master-free-spins-twitter_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/free-roblox-accounts-2021-with-robux-august-2021_GM431946152.pdfIn PDF document text
    • https://7gking.tw/upload/files/minecraft-free-apk-java-edition_GM479516143.pdfIn PDF document text
    • https://7gking.tw/upload/files/wizard-hacks_GM479516143.pdfIn PDF document text
    • https://7gking.tw/upload/files/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://7gking.tw/upload/files/coin-master-gameplay_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_off00002c0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C0B 22612 bytes
SHA-256: 78713a8d1102f1af2d590205fea124df3a45414fead0fba5c0fd7a3efb347ea3
font_01_sfnt_off00005ec4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EC4 18916 bytes
SHA-256: 6351bac895ac4f7092c861be5cd6c95cfae0005f70234a53e30c7d9b5b5e5612

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