Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1aa4eb046a6dcda…

MALICIOUS

PDF

35.8 KB Created: 2021-05-21 13:33:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 693f448a3ec46ebcde0dd53f47618464 SHA-1: 2b156b7fc7071b10027a14e54ecbe4da8c5f2102 SHA-256: a1aa4eb046a6dcdae209240613754c4acb619342cb69b3c8306985ba89696ed1
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/479516143/minecraft-free-exe-game-hack PDF link annotation
    • http://halle-wasserball.de/images/coin-master-spin-link-hack_GM406889139.pdfIn PDF document text
    • http://halle-wasserball.de/images/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
    • http://halle-wasserball.de/images/orewards-com-free-robux_GM431946152.pdfIn PDF document text
    • http://halle-wasserball.de/images/minecraft-skins-download-free_GM479516143.pdfIn PDF document text
    • http://halle-wasserball.de/images/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
    • https://education.minecraftIn 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_off0000334a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x334A 25072 bytes
SHA-256: bcc0c485c6c5c2d2b5b31acdd02402cf894669d1b3709d1648b708c7e6b49f0f
font_01_sfnt_off00006c29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C29 17780 bytes
SHA-256: 184f68a403119e274d74e0b6050f83bd20a8f42ea09f5a6442f850a022aaf90d

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