Malicious PDF — malware analysis report

Static analysis result for SHA-256 e337eaad6401eb6d…

MALICIOUS

PDF

45.4 KB Created: 2021-05-13 19:41:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: a5100a6b90092597292f28476fd83e3a SHA-1: 4f6f0fa129e0f1e120bcf9eea1829449757a7b65 SHA-256: e337eaad6401eb6d618219022dc9427c390f967aad338d2886c3ae0eada408b9
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 0.9507

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-reward-link-2021-game-hack PDF link annotation
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/free-minecraft-skins-pe_GM479516143.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/coin-master-2021-free-spins-link-today_GM406889139.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/coin-master-hack-ios-2021_GM406889139.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/coin-master-hack-1021_GM406889139.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/coin-master-fun-hack-online_GM406889139.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/coin-master-hack-mod-apk-free-download_GM406889139.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/free-roblox-hack_GM431946152.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/play-minecraft-free-online-no-download_GM479516143.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/robux-survey_GM431946152.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/free-pet-snacks-coin-master_GM406889139.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/earn-robux-today-earn-robux-today_GM431946152.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/coin-master-free-spins-link-hack_GM406889139.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/minecraft-free-minecraft_GM479516143.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/my-roblox-account-was-hacked_GM431946152.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/coin-master-free-box_GM406889139.pdfIn PDF document text
    • https://www.wearmyspex.com/uploaded_files/userfiles/files/roblox-games-to-play-for-free_GM431946152.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004aac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AAC 25540 bytes
SHA-256: a6125bfecaf22451f7505d2bacb6c06748f49e2828571f0df2c230286194be4c
font_01_sfnt_off00008434.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8434 2824 bytes
SHA-256: 381f6d859be141449dd645f7be1484d2a1cf49218dc471b402dae69eaa2b11d5
font_02_sfnt_off00008dd7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8DD7 18456 bytes
SHA-256: 6040a5d317e0c15c3b91341419c6951bd8a72d731c40e3937b88b452a10d0332

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