Malicious PDF — malware analysis report

Static analysis result for SHA-256 586248ad2352f336…

MALICIOUS

PDF

36.1 KB Created: 2021-05-24 09:02:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 77529ca67c09066053c23cc2e5c05bc6 SHA-1: 4caab8ed9b058a5fef308b2e2aedbbb8479fff76 SHA-256: 586248ad2352f3367ff191d58e74c58354afbc6dea72370d37ba0a51db0ac932
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 0.9492

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/coin-master-free-spin-and-coin-game-hack PDF link annotation
    • http://www.lacarla.dk/images/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://www.lacarla.dk/images/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://www.lacarla.dk/images/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.lacarla.dk/images/free-robux-codes-not-used_GM431946152.pdfIn PDF document text
    • http://www.lacarla.dk/images/free-robux-no-verification-or-survey_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
stream_002_off00003535.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3535 24604 bytes
SHA-256: 0ebfe22997fd893d938ff2ec28f86b7e5f06e0c949fb764161b5513c6967a3aa
font_01_sfnt_off00006c6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C6E 18060 bytes
SHA-256: 7f8980b6f3213b204c7b050e62c653166806b65682437d624869b2fc7a4cb6a7

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