Malicious PDF — malware analysis report

Static analysis result for SHA-256 24126a7adad17e13…

MALICIOUS

PDF

40.3 KB Created: 2021-05-10 16:31:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 27370cf5bb8a23123811d4f0785374d6 SHA-1: 0cf63e6a9c5d1f0572e2863ec58e22e14a5c8cce SHA-256: 24126a7adad17e132cdd9dacb358199a15baa5d7324a08597d44ca3cdb8c4cab
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9972

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 https://netcdn.xyz/app/406889139/get-free-spins-coin-master-october-2021-game-hack PDF link annotation
    • https://www.fubode.org/images/apps-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.fubode.org/images/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.fubode.org/images/how-to-get-a-lot-of-robux_GM431946152.pdfIn PDF document text
    • https://www.fubode.org/images/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.fubode.org/images/hack-master-coin_GM406889139.pdfIn PDF document text
    • https://www.fubode.org/images/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://www.fubode.org/images/coin-master-hack-version-ios_GM406889139.pdfIn PDF document text
    • https://www.fubode.org/images/free-minecraft-java-account_GM479516143.pdfIn PDF document text
    • https://www.fubode.org/images/coin-master-free-foxy-food_GM406889139.pdfIn PDF document text
    • https://www.fubode.org/images/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.fubode.org/images/coin-master-hack-no-verification-no-signup_GM406889139.pdfIn PDF document text
    • https://www.fubode.org/images/free-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.fubode.org/images/free-spins-and-coins-for-coin-master_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_003_off00004180.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4180 24892 bytes
SHA-256: 27c974cc32839d0806e6e8bf0f2f7491cf1caa62a1035000b31e7060619a5533
font_01_sfnt_off00007b03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B03 18444 bytes
SHA-256: b16824f866cbb0b2e3293a2fc4d3ea97589f6ec0209b9c1fbefadf3e0951670f

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