Malicious PDF — malware analysis report

Static analysis result for SHA-256 287405d99f5c30b0…

MALICIOUS

PDF

36.9 KB Created: 2021-05-24 17:36:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: b0325b32601d62d48ee229ff08258e98 SHA-1: 30a72fd064726bc6e6439017ed8f53d70510869a SHA-256: 287405d99f5c30b0f958a3345415a36eb266a4baf08aee1a546a0c2cdf4ebda1
82 Risk Score

Malware Insights

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

The PDF document displays a fake CAPTCHA to trick the user into clicking a link, which is a common social engineering tactic. The embedded URL and other links point to sites offering game-related cheats or hacks, further supporting the lure. While no scripts were directly extracted, the PDF structure and heuristics suggest it's designed to lead the user to a malicious website.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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-daily-gift-free-spins-and-coins-link-game-hack PDF link annotation
    • http://inextpresident.com/images/google-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://inextpresident.com/images/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://inextpresident.com/images/minecraft-bedrock-free-with-java_GM479516143.pdfIn PDF document text
    • http://inextpresident.com/images/hack-coin-master-1_GM406889139.pdfIn PDF document text
    • http://inextpresident.com/images/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000036bb.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x36BB 24212 bytes
SHA-256: 0c3d2dd7167fcac3ddaae3f0a4b3021ddddbf92ca1f6e632410204c557ef695c
font_01_sfnt_off00006dc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DC6 18652 bytes
SHA-256: 366d9c9b3cd0388843e044af578ba3ade018a9e96efb4083e0cc5bdd66e71c38

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