PDF static analysis report

Static analysis result for SHA-256 a1e373f7efbc1791…

SUSPICIOUS

PDF

35.4 KB Created: 2021-07-04 04:35:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: ed2fb2d629978a084d0158ddaa9abf3a SHA-1: 4f1f5d249c1c305b90bde666e7ee0e04689e3ec1 SHA-256: a1e373f7efbc179156c95410089968996d20ddcc2bcd9a387bcf9b131b5c29db
50 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and external URIs that are highly indicative of malicious activity. The document body and extracted URLs suggest a lure for downloading potentially unwanted or malicious software, disguised as cheats or free accounts for popular games. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to trick users into downloading a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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/431946152/free-roblox-accounts-with-robux-game-hack PDF link annotation
    • https://cheryco.ir/assets/public/js/uploading/files/minecraft-free-ios_GM479516143.pdfIn PDF document text
    • https://cheryco.ir/assets/public/js/uploading/files/how-to-hack-in-to-builder-mans-acount-roblox_GM431946152.pdfIn PDF document text
    • https://cheryco.ir/assets/public/js/uploading/files/roblox-free-online-game-demo_GM431946152.pdfIn PDF document text
    • https://cheryco.ir/assets/public/js/uploading/files/how-to-get-free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • https://cheryco.ir/assets/public/js/uploading/files/minecraft-skins-download-free_GM479516143.pdfIn PDF document text
    • https://cheryco.ir/assets/public/js/uploading/files/robux-gratis-hack-para-android_GM431946152.pdfIn PDF document text
    • https://cheryco.ir/assets/public/js/uploading/files/coin-master-hoe-to-get-extra-free-spins_GM406889139.pdfIn PDF document text
    • https://cheryco.ir/assets/public/js/uploading/files/get-free-tiktok-likes_GM835599320.pdfIn PDF document text
    • https://cheryco.ir/assets/public/js/uploading/files/assassin-roblox-token-hack_GM431946152.pdfIn PDF document text
    • https://cheryco.ir/assets/public/js/uploading/files/resource-free-robux_GM431946152.pdfIn PDF document text
    • https://cheryco.ir/assets/public/js/uploading/files/win-free-robux_GM431946152.pdfIn PDF document text
    • https://cheryco.ir/assets/public/js/uploading/files/hacks-para-mad-city-roblox-2021_GM431946152.pdfIn PDF document text
    • https://cheryco.ir/assets/public/js/uploading/files/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://cheryco.ir/assets/public/js/uploading/files/how-to-download-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • https://cheryco.ir/assets/public/js/uploading/files/roblox-booga-booga-hack-script-2021_GM431946152.pdfIn PDF document text
    • https://cheryco.ir/assets/public/js/uploading/files/how-to-get-minecraft-for-free-on-android_GM479516143.pdfIn PDF document text
    • https://cheryco.ir/assets/public/js/uploading/files/free-download-roblox-hack_GM431946152.pdfIn PDF document text
    • https://cheryco.ir/assets/public/js/uploading/files/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • https://cheryco.ir/assets/public/js/uploading/files/free-spin-coin-master-today_GM406889139.pdfIn PDF document text
    • https://cheryco.ir/assets/public/js/uploading/files/coin-master-free-coins_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_off00003105.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3105 22856 bytes
SHA-256: 05a1c29e7483eaa9087ab145d267afdd3c37c909670a57f2d3c29d530abbb3c4
font_01_sfnt_off00006471.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6471 19376 bytes
SHA-256: f0162913020963e5353758c8abfc28ea25b7e1d49227c6af753a68a32515d33f

Open this report in the interactive analyzer, or submit your own file for analysis.