Malicious PDF — malware analysis report

Static analysis result for SHA-256 e960af4293403f6d…

MALICIOUS

PDF

46.1 KB Created: 2021-06-06 23:26:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 3103632ef39f075746d1c4e144ecc4e8 SHA-1: 4062cc173261a88493f4c52b9daccf95e8b7b84c SHA-256: e960af4293403f6d392039918b3991ec21509ad3a7b29f29c50062a5e999d6bb
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including a prominent one to a 'free generator / game hack' redirector, indicating a lure for potentially malicious content. The ML classifier also flagged the PDF as malicious. While no scripts were directly extracted, the embedded URLs suggest the document's purpose is to redirect users to sites offering game cheats, which often host malware or phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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.tw/app/431946152/how-do-you-change-your-username-in-roblox-for-free-game-hack PDF link annotation
    • http://medinup.pt/images/tiktok-viewer-free_GM835599320.pdfIn PDF document text
    • http://medinup.pt/images/is-free-robux-real_GM431946152.pdfIn PDF document text
    • http://medinup.pt/images/how-to-get-free-shirts-on-roblox_GM431946152.pdfIn PDF document text
    • http://medinup.pt/images/free-account-roblox-2021_GM431946152.pdfIn PDF document text
    • http://medinup.pt/images/sites-for-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://medinup.pt/images/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://medinup.pt/images/best-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://medinup.pt/images/coin-master-hack-uk_GM406889139.pdfIn PDF document text
    • http://medinup.pt/images/is-minecraft-free-on-mac_GM479516143.pdfIn PDF document text
    • http://medinup.pt/images/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://medinup.pt/images/coin-master-free-spins-link-download-ios_GM406889139.pdfIn PDF document text
    • http://medinup.pt/images/coin-master-free-cards-2021_GM406889139.pdfIn PDF document text
    • http://medinup.pt/images/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • http://medinup.pt/images/gameoffice-net-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://medinup.pt/images/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • http://medinup.pt/images/roblox-18_GM431946152.pdfIn PDF document text
    • http://medinup.pt/images/free-roblox-hair-codes_GM431946152.pdfIn PDF document text
    • http://medinup.pt/images/wurst-112-2_GM479516143.pdfIn PDF document text
    • http://medinup.pt/images/free-minecraft-servers-to-join_GM479516143.pdfIn PDF document text
    • http://medinup.pt/images/coin-master-hack-tool-exe_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
stream_004_off0000527a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x527A 26388 bytes
SHA-256: 5e59524cb69c227cdebcd35cf34b2935c16906d46568117ba82a64d462ea4c27
font_01_sfnt_off00008d75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D75 19712 bytes
SHA-256: 94e131286d847bab18ec34bed1b915615765e92bea4c143f7f2d839b8d0310d2

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