Malicious PDF — malware analysis report

Static analysis result for SHA-256 0816eff789ad2cfe…

MALICIOUS

PDF

34.8 KB Created: 2021-06-26 17:30:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: a0e4099f4381f7e26f4cccc7c41f69c6 SHA-1: c0df90a54390dd7561114723abac519f960a2c94 SHA-256: 0816eff789ad2cfe6bbe9cec1feb3b484ae8d9798be13493842b03bfaad1955c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to websites offering game hacks and free in-game currency, a common lure for phishing and malware distribution. The ML classifier strongly flagged this PDF as malicious, and the presence of external URIs and a download button lure further support this assessment. No scripts were extracted, but the document's structure and embedded links suggest it is designed to trick users into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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.
  • 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.co/app/431946152/hacker-mask-roblox-game-hack PDF link annotation
    • http://nationshield.ae/userfiles/files/free-robux-safe_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/roblox-game-free-download_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/http-appsmob-info-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/what-is-robux-in-roblox_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/is-minecraft-realms-free_GM479516143.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/get-viral-on-tiktok-free_GM835599320.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/infinite-robux_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/free-robux-giveaway-live_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/vechlie-simulator-for-free-roblox_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/free-robux-place_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/play-minecraft-online-free_GM479516143.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/minecraft-switch-free_GM479516143.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/minecraft-build-hacks_GM479516143.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/coin-master-apk-hack-2021_GM406889139.pdfIn PDF document text
    • http://nationshield.ae/userfiles/files/coun-master_GM406889139.pdfIn PDF document text
    • https://www.roblox.com/.IIn 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
font_00_sfnt_off000031ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31BA 22416 bytes
SHA-256: b4b8fab394ffd189c1978c5a6f7d9b4ccf93c4689ac4b13bc2cdacd2d72dc074
font_01_sfnt_off000063ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63AD 18852 bytes
SHA-256: ddaa7d286a493e9ae1cb2ef17ea4ceb6a848bed241bfda6b5aae707f34008b62

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