Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ecab07789632db6…

MALICIOUS

PDF

34.2 KB Created: 2021-07-02 03:52:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 68b518a6c78e37c76fd35170b8bbaa90 SHA-1: eeab781661e19850b95dab2d8679ad7864f0ef66 SHA-256: 5ecab07789632db65129ef54cb91ac3782ff02c598f85144fa6aacdc77450c67
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

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 0.9980

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.co/app/431946152/cheat-table-roblox-game-hack PDF link annotation
    • https://www.advancissurgical.com/uploads/files/files/edit-roblox-game-code-cheat-engine-2021_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/roblox-a-free-model-makes-me-teleport-to-another-game_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/minecraft-java-edition-free-download_GM479516143.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/pokemon-go-hack-free-download-ios_GM1094591345.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/working-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/wurst-client_GM479516143.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/marshmello-shirt-roblox-free_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/feb-23-2021-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/free-premium-roblox_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/free-robux-zone_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/minecraft-pe-server-hosting-free_GM479516143.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/optifine-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/coin-master-mod-apk-unlimited-spin-download-free-full-version_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/free-robux-javascript-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/daily-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/bloxy-world-free-robux_GM431946152.pdfIn PDF document text
    • https://www.advancissurgical.com/uploads/files/files/filtered-roblox-hacking_GM431946152.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_off00002e6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E6F 22780 bytes
SHA-256: dc5979aa4cacc073b54de813e40d7256a0e9bdc641bda2d1e8c143eabce96172
font_01_sfnt_off00006185.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6185 18756 bytes
SHA-256: 2a64100f030a4eb7b6d324d413a9977ab90421302e584afa62cf690ae794eeb2

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