PDF static analysis report

Static analysis result for SHA-256 1e1727e8fca49517…

SUSPICIOUS

PDF

35.2 KB Created: 2021-07-03 15:49:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: fe8b9238910b5a59220d50dc79dc2b1a SHA-1: b87359fb449928fca750093fd9fbcfbede252170 SHA-256: 1e1727e8fca495179bded55521913f5c2c8333757f3a48134ddca028b728f510
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains embedded URLs and text that promote downloading applications for game cheats and free spins, specifically mentioning Coin Master and Roblox. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of it being used for malicious purposes, such as distributing malware or engaging in phishing. The presence of multiple related URLs suggests a coordinated effort to direct users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • 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/406889139/coin-master-free-spins-2021-app-download-game-hack PDF link annotation
    • https://healthcare.kyst.com.tw/image/data/files/minecraft-hacks-for-2b2t_GM479516143.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/roblox-hack-username_GM431946152.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/free-robux-not-fake_GM431946152.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/cookie-hack-roblox-players-on-galaxy-note-8_GM431946152.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/free-robux-hack-pro_GM431946152.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/robux-secret-forum-hack_GM431946152.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/coin-master-hack-app-for-ios_GM406889139.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/fishing-simulator-roblox-hack-vehicle-mods_GM431946152.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/android-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/temple-free-roblox_GM431946152.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/free-frog-roblox_GM431946152.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/coin-master-free-spins-a2z-help_GM406889139.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/roblox-winter-games-lodge-free_GM431946152.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/how-to-get-free-roebucks_GM431946152.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/free-robux-place_GM431946152.pdfIn PDF document text
    • https://healthcare.kyst.com.tw/image/data/files/roblox-script-hack_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30FA 22824 bytes
SHA-256: 453a61657b7ec3dea7dd6a40e7dc9c7ca271e68e0acd6379e65174ca1423e042
font_01_sfnt_off00006408.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6408 19156 bytes
SHA-256: 610ae378c9cc4c83123dbbc111aaf327ebb15e20175b345a881081f690b9164c

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