Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fb470a372599549…

MALICIOUS

PDF

50.0 KB Created: 2021-05-12 22:58:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: dca186348b1d87adc3e1124ccac7c492 SHA-1: 4964bcb9a54e3f2da7de6611e09c26f8a2e4337f SHA-256: 0fb470a37259954994e9772cfc0888eb1d07b7ad19b11b61d058f5ed276b61a5
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 0.9349

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/431946152/free-roblox-accounts-generator-game-hack PDF link annotation
    • https://www.fhccu.com/images/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • https://www.fhccu.com/images/microsoft-free-robux_GM431946152.pdfIn PDF document text
    • https://www.fhccu.com/images/gold-cards-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.fhccu.com/images/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • https://www.fhccu.com/images/coin-master-hack-2021-iphone_GM406889139.pdfIn PDF document text
    • https://www.fhccu.com/images/free-coin-master-spins-link-download_GM406889139.pdfIn PDF document text
    • https://www.fhccu.com/images/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • https://www.fhccu.com/images/free-coins-coin-master-blog_GM406889139.pdfIn PDF document text
    • https://www.fhccu.com/images/free-spin-and-coin_GM406889139.pdfIn PDF document text
    • https://www.fhccu.com/images/best-free-robux-sites_GM431946152.pdfIn PDF document text
    • https://www.fhccu.com/images/link-coin-master_GM406889139.pdfIn PDF document text
    • https://www.fhccu.com/images/mcpe-master-free-coins_GM406889139.pdfIn PDF document text
    • https://www.fhccu.com/images/coin-master-level-4_GM406889139.pdfIn PDF document text
    • https://www.fhccu.com/images/how-to-get-free-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.fhccu.com/images/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://www.fhccu.com/images/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • https://www.fhccu.com/images/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • https://www.fhccu.com/images/free-robux-com-no-verification_GM431946152.pdfIn PDF document text
    • https://www.fhccu.com/images/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://www.fhccu.com/images/how-to-hack-coin-master-ios-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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b34.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B34 25900 bytes
SHA-256: 765505bd37bc00b5a42fefac344c7ca9cd76d193308bfe85764e6614bc696065
font_01_sfnt_off00008805.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8805 7476 bytes
SHA-256: 286c6bc34bd38069d882507a503132d7aba1eaca25ee3905f485bb59af14548c
font_02_sfnt_off0000a0a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0A8 18420 bytes
SHA-256: 53882506a585ec055cfd1b3dca4ddad0c6693ab294b081b26afef1ed42434664

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