Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f7956f42edb3a7b…

MALICIOUS

PDF

32.3 KB Created: 2021-07-19 21:40:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 177ea9a8675e607574517ebcf3e5e9d9 SHA-1: 7b82fd4cb359f7ab7fc4d8b4b49269382bfe1c04 SHA-256: 2f7956f42edb3a7bf6293b9081f39b4e8f29b9ecca8ab08c306db752953db6d9
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 0.9900

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 http://netcdn.tw/app/479516143/free-minecraft-survival-server-game-hack PDF link annotation
    • https://www.mierepair.com/uploaded_files/userfiles/files/minecraft-free-online_GM479516143.pdfIn PDF document text
    • https://www.mierepair.com/uploaded_files/userfiles/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://www.mierepair.com/uploaded_files/userfiles/files/minecraft-java-edition-redeem-code-free-2021_GM479516143.pdfIn PDF document text
    • https://www.mierepair.com/uploaded_files/userfiles/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.mierepair.com/uploaded_files/userfiles/files/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • https://www.mierepair.com/uploaded_files/userfiles/files/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • https://www.mierepair.com/uploaded_files/userfiles/files/free-robux-codes_GM431946152.pdfIn PDF document text
    • https://www.mierepair.com/uploaded_files/userfiles/files/how-to-get-minecraft-for-free-on-chromebook_GM479516143.pdfIn PDF document text
    • https://www.mierepair.com/uploaded_files/userfiles/files/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • https://www.mierepair.com/uploaded_files/userfiles/files/free-spins-coin-master-app_GM406889139.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
font_00_sfnt_off00002e1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E1F 21648 bytes
SHA-256: 00edd212412cde340d20bb87f2fa36cfd252c6ba2f79d4fedf23fb4e7c37c75d
font_01_sfnt_off00005d7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D7B 17896 bytes
SHA-256: a416ee995e2fcdad104e8f08570a8c057a7877f0093c65a8eab662d227b30cb8

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