Malicious PDF — malware analysis report

Static analysis result for SHA-256 7eda4371fe990c0b…

MALICIOUS

PDF

47.8 KB Created: 2021-05-10 17:13:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 9d6594e5df3ca9636c8df29ef5a950a8 SHA-1: 4082e569900a691983fd02593ea95fca20808e7c SHA-256: 7eda4371fe990c0bf49a35738c767722375bd11194cf198efd1f59cd4d0a4917
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 0.8913

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-hack-2021-download-game-hack PDF link annotation
    • http://learningarabic.co.uk/images/coin-master-hack-apk-april-12-2021_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/coin-master-unlimited-spin-apk-free-download_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/coin-master-cheats-without-verification_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/roblox-avatar-editor-free_GM431946152.pdfIn PDF document text
    • http://learningarabic.co.uk/images/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/how-to-get-free-snacks-on-coin-master_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://learningarabic.co.uk/images/hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/40-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/coin-master-free-spins-daily-link-updated_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
    • http://learningarabic.co.uk/images/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://learningarabic.co.uk/images/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000042e5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x42E5 25092 bytes
SHA-256: 879a8048ed1bd6be70113d34be8a61287813484ecc36aecbfa173a353c77985e
font_01_sfnt_off00007ccf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CCF 4732 bytes
SHA-256: 3d3eea840b04cac645d4b4c2a03a44611fb2505d6b93ac1f2275d3e082b74b09
font_02_sfnt_off00008d19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D19 2788 bytes
SHA-256: 6fd7c7f447d66842f81aa8cf197935b17f22157d0c7e9f95622df1b5b4ddf530
font_03_sfnt_off00009709.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9709 18696 bytes
SHA-256: 01e33fa384fcd9559826a4aa1de189e20085b3e2fa6b70097625b29721cffd1e

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