Malicious PDF — malware analysis report

Static analysis result for SHA-256 971e4d872589ae3f…

MALICIOUS

PDF

43.9 KB Created: 2021-05-19 08:37:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 897cf896329a34f6f3ee02389c7ed9b5 SHA-1: 85442b8f1e8d72f7bc87d1fdf5b4c5dd6162f5c1 SHA-256: 971e4d872589ae3f600742662b1b766fab8538c2dcd18316f3836b97abb320f8
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document contains a fake CAPTCHA lure, designed to trick users into interacting with a malicious download link. The document body and extracted URLs point to various game-related cheats and hacks, suggesting a social engineering pretext for malware delivery. No scripts were extracted, limiting further analysis of the payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/431946152/roblox-no-download-hack-game-hack PDF link annotation
    • http://firesafetyservices.biz/images/pubg-4-uccom_GM1330123889.pdfIn PDF document text
    • http://firesafetyservices.biz/images/free-coins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://firesafetyservices.biz/images/minecraft-free-download-laptop_GM479516143.pdfIn PDF document text
    • http://firesafetyservices.biz/images/how-to-get-spins-for-free-on-coin-master_GM406889139.pdfIn PDF document text
    • http://firesafetyservices.biz/images/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://firesafetyservices.biz/images/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://firesafetyservices.biz/images/what-is-wurst_GM479516143.pdfIn PDF document text
    • http://firesafetyservices.biz/images/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://firesafetyservices.biz/images/coin-master-free-raid-link_GM406889139.pdfIn PDF document text
    • http://firesafetyservices.biz/images/roblox-gift-card-for-free_GM431946152.pdfIn PDF document text
    • http://firesafetyservices.biz/images/easy-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://firesafetyservices.biz/images/minecraft-skins-download-free_GM479516143.pdfIn PDF document text
    • http://firesafetyservices.biz/images/coin-master-free-spins-2021-blogspot_GM406889139.pdfIn PDF document text
    • http://firesafetyservices.biz/images/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://firesafetyservices.biz/images/free-roblox-money_GM431946152.pdfIn PDF document text
    • http://firesafetyservices.biz/images/online-coin-master-hack-here_GM406889139.pdfIn PDF document text
    • http://firesafetyservices.biz/images/free-spins-coin-master-haktuts_GM406889139.pdfIn PDF document text
    • http://firesafetyservices.biz/images/free-domain-for-minecraft-server_GM479516143.pdfIn PDF document text
    • http://firesafetyservices.biz/images/when-tiktok-free-will_GM835599320.pdfIn PDF document text
    • http://firesafetyservices.biz/images/free-robux-generator-com-roblox-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
stream_003_off000049c3.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x49C3 27484 bytes
SHA-256: 628e78963711b82ff2ec22db5009169d3c2c472aa54688b90ffa63642ae49d78
font_01_sfnt_off000087f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87F8 18688 bytes
SHA-256: d5d7cfea6fb7c102685ba8f1dd19dd1f71835ac40da00045e859a47e2011ef1d

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