Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f46c1a2294300e3…

MALICIOUS

PDF

44.2 KB Created: 2021-06-09 00:26:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: a804834ce995d72fbdd414a513b4f8f5 SHA-1: 79fb3a0eddae4a72813f2a53acec628e8751ef72 SHA-256: 7f46c1a2294300e3306229fb5670fa4550b2f36ed181d83c80cbbfc86df357fd
82 Risk Score

Malware Insights

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

The document presents a fake CAPTCHA to trick the user into clicking a link, which is a common social engineering tactic. The embedded URLs suggest a lure related to game hacks or cheats, likely leading to a malicious download or phishing site. While no scripts were directly extracted, the PDF structure and heuristics indicate an attempt to exploit user interaction for malicious purposes.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.tw/app/431946152/roblox-free-candy-meme-game-hack
    • http://moneymaker-gold.de/files/coin-master-free-100-spin_GM406889139.pdf
    • http://moneymaker-gold.de/files/free-roblox-accounts-with-builders-club_GM431946152.pdf
    • http://moneymaker-gold.de/files/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdf
    • http://moneymaker-gold.de/files/free-robux-ad_GM431946152.pdf
    • http://moneymaker-gold.de/files/roblox-xeber-hack_GM431946152.pdf
    • http://moneymaker-gold.de/files/free-robux-codes-2021_GM431946152.pdf
    • http://moneymaker-gold.de/files/coin-master-hack-without-verification-2021_GM406889139.pdf
    • http://moneymaker-gold.de/files/roblox-army-robux_GM431946152.pdf
    • http://moneymaker-gold.de/files/free-robux-reddit_GM431946152.pdf
    • http://moneymaker-gold.de/files/roblox-jailbreak-god-mode-hack_GM431946152.pdf
    • http://moneymaker-gold.de/files/rbx-roblox-robux_GM431946152.pdf
    • http://moneymaker-gold.de/files/coin-master-hack-spins-apk_GM406889139.pdf
    • http://moneymaker-gold.de/files/how-to-get-free-robux-app_GM431946152.pdf
    • http://moneymaker-gold.de/files/best-free-spins-for-coin-master_GM406889139.pdf
    • http://moneymaker-gold.de/files/free-roblox-shirt-templates_GM431946152.pdf
    • http://moneymaker-gold.de/files/roblox-sexually-abused_GM431946152.pdf
    • http://moneymaker-gold.de/files/how-to-get-free-robux-no-survey_GM431946152.pdf
    • http://moneymaker-gold.de/files/hack-coin-master-spin_GM406889139.pdf
    • http://moneymaker-gold.de/files/free-50-tiktok-views_GM835599320.pdf
    • http://moneymaker-gold.de/files/coin-master-free-spins-link-2021-ios_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004f94.bin
75199c9232e10e277e99b2ade92c1a241d03971b9a571ead6710596a7bac24e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F94 24900 bytes
font_01_sfnt_off00008825.bin
840b3eb68bda6c0d6525ac419d74869d873be4aac36597dbb61680c983f56653		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8825 18988 bytes

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