Malicious PDF — malware analysis report

Static analysis result for SHA-256 972ca6d4f0763647…

MALICIOUS

PDF

226.1 KB Created: 2021-07-05 01:14:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: e08f9c7a907f0e452abc6422e96d8632 SHA-1: dee0c29ab64fd7a581b2012c2a1834d13b23b4ff SHA-256: 972ca6d4f0763647d32f38021da7382a8614c161c178de8913da6cd23fd432a6
172 Risk Score

Malware Insights

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

The PDF document employs social engineering tactics, presenting a fake CAPTCHA and a lure for game hacks to trick users into clicking a malicious link. This pattern is commonly used to deliver further malware or redirect users to phishing sites. The primary link identified directs to a suspicious domain associated with game hacks and free gift offers.

Machine Learning

  • Nyx PDF Classifier clean score 0.0118

Heuristics 7

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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/1094591345/pokemon-go-free-gift-codes-game-hack PDF link annotation
    • http://lib.teknik.unimal.ac.id/repository/how-to-get-into-a-account-thats-hacked-in-roblox_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/free-minecraft-hosting-24-7_GM479516143.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/coin-master-hack-2021-ios_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/roblox-premium-membership-hack_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/rbxboost-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/building-simulator-hack-roblox_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/roblox-avatar-girl_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/code-hack-speed-roblox_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/free-2021-robux-code_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/hack-download-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/roblox-magic-training-wand-free_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/hacking-commands-for-roblox_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/pokemon-go-free-download-android_GM1094591345.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id/repository/cheat-way-to-give-robux-to-friends-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.teknik.unimal.ac.id//repository/roblox-system_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_023_off00031c66.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31C66 25576 bytes
SHA-256: 5f944fd912559a542e19de9ba2fedf3353c280d7de4f5807e3316c1f6137a0c9
font_01_sfnt_off0003586a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3586A 18756 bytes
SHA-256: 113ff95ef02fa13a091af95803747d0f36460bfa6b2364c1be28d637ba393a32

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