Malicious PDF — malware analysis report

Static analysis result for SHA-256 a006c92dddfde495…

MALICIOUS

PDF

44.4 KB Created: 2021-05-14 18:00:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 92f9613d064fe8b11f6a76e310152dde SHA-1: ffa9e0c7beea74f4429fa994777b8d014f7ff79d SHA-256: a006c92dddfde495741bba1b3e2f29bcb6b57b56af1b85deb84a59acbf7be768
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites that promise game hacks and free currency, a common lure for phishing or malware distribution. The ML classifier strongly flagged this PDF as malicious, and the presence of a 'game hack' redirector heuristic further supports this. Although no scripts were extracted, the embedded URLs are the primary indicators of malicious intent, likely leading to a scam or a second-stage download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/can-you-get-free-robux-on-roblox-game-hack PDF link annotation
    • https://www.zagi.hr/files/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://zagi.hr/files/how-to-get-free-roblox-gift-cards_GM431946152.pdfIn PDF document text
    • http://zagi.hr/files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://zagi.hr/files/free-online-generator-for-coin-master_GM406889139.pdfIn PDF document text
    • http://zagi.hr/files/roblox-adopt-me-hack_GM431946152.pdfIn PDF document text
    • http://zagi.hr/files/how-to-get-free-robux-no-scam_GM431946152.pdfIn PDF document text
    • http://zagi.hr/files/free-online-minecraft-server_GM479516143.pdfIn PDF document text
    • https://www.zagi.hr/files/abd-roblox_GM431946152.pdfIn PDF document text
    • https://www.zagi.hr/files/roblox-rape-hack_GM431946152.pdfIn PDF document text
    • http://zagi.hr/files/coin-master-free-spins-daily-2021_GM406889139.pdfIn PDF document text
    • http://zagi.hr/files/who-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.zagi.hr/files/coin-master-link-for-spins_GM406889139.pdfIn PDF document text
    • https://www.zagi.hr/files/freespincoin-masterlinkdownload_GM406889139.pdfIn PDF document text
    • https://www.zagi.hr/files/coin-master-hacks-for-android_GM406889139.pdfIn PDF document text
    • http://zagi.hr/files/free-robux-stream_GM431946152.pdfIn PDF document text
    • http://zagi.hr/files/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
    • http://zagi.hr/files/village-4-coin-master_GM406889139.pdfIn PDF document text
    • http://zagi.hr/files/free-gold-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.zagi.hr/files/free-script-executor-roblox_GM431946152.pdfIn PDF document text
    • https://www.zagi.hr/files/get-free-lives-on-coin-master_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_003_off00004b48.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B48 27340 bytes
SHA-256: f8551f6d0c20dbda010de0a47b9768b8b690a7a73289b32a8f1670e5b1c9b59c
font_01_sfnt_off00008a6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A6C 18580 bytes
SHA-256: 0d0c29456045ba8700eeeb9b5d08ef238a74b3c73615dbb1a220be23830403a6

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