Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2afe4669fa38463…

MALICIOUS

PDF

35.3 KB Created: 2021-07-05 22:23:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 20706298acc723178bda736f95960866 SHA-1: 9c8503f3804130cc47818f50adb7c8942fea8c0e SHA-256: b2afe4669fa384634664f046a63947d0480b0f03a9df261126de3b5ff8f8b91d
82 Risk Score

Malware Insights

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

This PDF document employs a common lure, promising a game hack to entice users to click a link. The embedded link, http://netcdn.tw/app/406889139/coin-master-hack-tool-apk-download-game-hack, redirects to a site likely hosting a malicious payload. The ML classifier strongly indicates maliciousness, and the PDF structure itself contains links designed to exploit user interest in game cheats.

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/coin-master-hack-tool-apk-download-game-hack PDF link annotation
    • https://creationegyptco.com/userfiles/files/free-robux-app-verification_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/how-to-hack-in-roblox-prison-life_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/coin-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/is-minecraft-free-on-xbox-one_GM479516143.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/hacks-minecraft_GM479516143.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/roblox-free-hair-girl_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/how-to-get-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/minecraft-thumbnail-maker-free_GM479516143.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/how-to-get-free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/how-to-download-wurst_GM479516143.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/how-do-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/get-robux_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/coin-master-hackcom-xyz_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/item20212021-free-roblox_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/is-there-a-way-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/how-to-hack-coin-master-with-game-guardian_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
stream_002_off000032e4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32E4 22784 bytes
SHA-256: fb28a9038000027d54ee984b35cca5dc64242861157310301df1915876d95b34
font_01_sfnt_off000065dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65DC 18760 bytes
SHA-256: bbf27033e57eaa2b14702d38ebe1a4a11644b4e7d3fc18420f2587cca532295e

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