Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1ec0225f3680002…

MALICIOUS

PDF

41.2 KB Created: 2021-04-25 05:45:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 14ecb76787d413615f6299b071c1f862 SHA-1: 1c9f0c00c31ac176b5f662b8c4b8ff0b8c67d008 SHA-256: e1ec0225f36800027549e6d98bdb8e2e2bbf5ca1cf14e06cdea693662929bc02
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 0.9941

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/como-instalar-hacks-para-roblox-2021-game-hack PDF link annotation
    • https://studentcareerinfo.com/images/roblox-free-poke-top.pdfIn PDF document text
    • https://studentcareerinfo.com/images/free-roblox-gift-card-code-pastebin.pdfIn PDF document text
    • https://studentcareerinfo.com/images/hack-cuenta-roblox-2021-pastebin.pdfIn PDF document text
    • https://studentcareerinfo.com/images/free-roblox-gift-cards-april-2021.pdfIn PDF document text
    • https://studentcareerinfo.com/images/killing-simulator-roblox-no-cheat.pdfIn PDF document text
    • https://studentcareerinfo.com/images/roblox-furk-blocburg-cheat.pdfIn PDF document text
    • https://studentcareerinfo.com/images/boys-hair-roblox-free.pdfIn PDF document text
    • https://studentcareerinfo.com/images/fly-hack-in-roblox.pdfIn PDF document text
    • https://studentcareerinfo.com/images/roblox-giant-dance-off-simulator-free-maschrum-pack.pdfIn PDF document text
    • https://studentcareerinfo.com/images/free-robux-only-works-today.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004448.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4448 25328 bytes
SHA-256: 64fb09079fd4be3312770410e56feecf5fbb0d5aad47a55717253f2c186d5023
font_01_sfnt_off00007ce9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CE9 19104 bytes
SHA-256: e6a14dfbf7b59ca1f5a72d7206e80c43aeed09c6c6fa8bdfad4e56530a77ed1d

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