Malicious PDF — malware analysis report

Static analysis result for SHA-256 e126602981e69ed4…

MALICIOUS

PDF

44.4 KB Created: 2021-05-13 00:52:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: ee61f3c1e4c5540db17c898d01a60d30 SHA-1: 553b673398b8816584a1e72494af39f2c4e1eb7c SHA-256: e126602981e69ed40757cca86b1070d759fe391594da8838d7d06ab23bcd1aa6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a fake CAPTCHA lure, aiming to trick users into downloading a malicious application. It embeds external URLs pointing to what appear to be game hack download sites, suggesting a social engineering tactic to distribute malware. The ML classifier also flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

Heuristics 4

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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-hack-apk-2021-download-game-hack PDF link annotation
    • http://maslabaou.com/images/how-to-hack-golden-card-in-coin-master_GM406889139.pdfIn PDF document text
    • http://maslabaou.com/images/what-games-on-roblox-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://maslabaou.com/images/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • http://maslabaou.com/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://maslabaou.com/images/wurst-client-download_GM479516143.pdfIn PDF document text
    • http://maslabaou.com/images/free-roblox-gift-card_GM431946152.pdfIn PDF document text
    • http://maslabaou.com/images/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • http://maslabaou.com/images/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://maslabaou.com/images/robux-redeem_GM431946152.pdfIn PDF document text
    • http://maslabaou.com/images/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • http://maslabaou.com/images/bux-gg-robux-free_GM431946152.pdfIn PDF document text
    • http://maslabaou.com/images/coin-master-hack-injection_GM406889139.pdfIn PDF document text
    • http://maslabaou.com/images/free-coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
    • http://maslabaou.com/images/coin-master-hack-with-lucky-patcher_GM406889139.pdfIn PDF document text
    • http://maslabaou.com/images/coin-master-attack-block-hack_GM406889139.pdfIn PDF document text
    • http://maslabaou.com/images/mobihack-net-roblox-hack_GM431946152.pdfIn PDF document text
    • http://maslabaou.com/images/wahoogaming-co-free-robux_GM431946152.pdfIn PDF document text
    • http://maslabaou.com/images/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://maslabaou.com/images/coin-master-hack-tool_GM406889139.pdfIn PDF document text
    • http://maslabaou.com/images/roblox-hack-ga_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
stream_003_off00004889.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4889 24072 bytes
SHA-256: ccaacef9be274a34732162ec9e6fca007cf7ab95c12e4399a02495bed2472f52
font_01_sfnt_off00007f4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F4D 2824 bytes
SHA-256: 381f6d859be141449dd645f7be1484d2a1cf49218dc471b402dae69eaa2b11d5
font_02_sfnt_off000088f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88F0 18876 bytes
SHA-256: be5be3eecf441f83945d2891df9f868a1d3a5dfc921b9d485f27c984001e53f9

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