Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ebe1d1f81bfe90b…

MALICIOUS

PDF

227.1 KB Created: 2021-07-05 05:02:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 3a1407d2565f77d371d3174272f9738c SHA-1: 6a08d0e0091b2b5552936411c020cebac27faa45 SHA-256: 1ebe1d1f81bfe90b1a80b8ee75abda4f1e78cd9a3f49e34a179d35026d6d3022
172 Risk Score

Malware Insights

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

The PDF document contains a high-severity heuristic indicating it links to a 'free generator / game hack' lure, specifically mentioning 'pokemon-go-free-98-game-hack'. This, combined with other heuristics like 'Fake CAPTCHA' and 'Browser extension / update installation lure', suggests a social engineering attack. The embedded URL likely leads to a malicious site designed to trick users into downloading malware or providing credentials.

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-98-game-hack PDF link annotation
    • https://www.alarqam.ae/userfiles/files/what-is-a-minecraft-client_GM479516143.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/how-to-get-300-robux-for-free-100-working_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/como-tener-robux-gratis-hacks-2021-mayo_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/websites-that-give-free-robux_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/how-to-get-free-robux-no-survey_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/roblox-exploit-scripts-free-download_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/roblox-hack-herunterladen_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-viking-quest-hack_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/minecraft-for-free-apk_GM479516143.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-2021-robux_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-outfits-roblox_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/coin-master-spins-gratis_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-roblox-shirt-templates_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-sexy-roblox-clothing_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-coin-master-game_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/se-puede-hackear-coin-master_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/daily-spin-and-coin_GM406889139.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/a-lot-of-robux_GM431946152.pdfIn PDF document text
    • https://www.alarqam.ae/userfiles/files/free-robux-codes_GM431946152.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_023_off000320a2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x320A2 25576 bytes
SHA-256: beb3c7161e97eeff072cb3d97c1acccb0aec4ebafac215a8827cecef334076c1
font_01_sfnt_off00035ca6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x35CA6 18732 bytes
SHA-256: 2cd042e6d1579ab00c67cabd4422a97eedc30b5de5fb98c096e25d2001a3872b