Malicious PDF — malware analysis report

Static analysis result for SHA-256 eea084afda1adfd0…

MALICIOUS

PDF

37.0 KB Created: 2021-05-20 18:08:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: fecf9d9312d035a5d2a95c5ad86d8540 SHA-1: 1086d1b51d635c0535aade7a344f2f1c6b132718 SHA-256: eea084afda1adfd0174b021bb41b6afd7630dfd4bbc08c1bcbdda747bf0023ea
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 0.9447

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-daily-free-spins-link-today-game-hack PDF link annotation
    • https://www.elevage-chiot.fr/images/minecraft-hack-ios_GM479516143.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/flame-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/coin-master-free-link-spin_GM406889139.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • https://www.elevage-chiot.fr/images/coin-master-online-hack-download_GM406889139.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_002_off0000349b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x349B 24864 bytes
SHA-256: f1edc56576b1d603cff686deeda79838f80826e98bdc8da6bc8bfadf4b6ba947
font_01_sfnt_off00006e1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E1F 18652 bytes
SHA-256: b7acebacf47409c7f0f2932ba41e4c1dc120b4ef5280387cf9333091bd47b2e0

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