Malicious PDF — malware analysis report

Static analysis result for SHA-256 b4d360a81dce8541…

MALICIOUS

PDF

34.8 KB Created: 2021-07-03 18:21:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 50416aa05c591407dd8a4e5d26ef6799 SHA-1: d7ee1242d55d03870524f96bd70b949fdd425864 SHA-256: b4d360a81dce85410da02357469d190442a491470b4b46d7cea8f1088e85ce1c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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.tw/app/406889139/download-hack-coin-master-apk-game-hack PDF link annotation
    • http://www.travelone.ae/userfiles/files/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/your-bizzare-adventure-script-esp-free-2021-roblox_GM431946152.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/www-coinmaster-com_GM406889139.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/https-iosgodscom-topic-20218flipmastercoinshack_GM406889139.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/oprewards-com-login_GM431946152.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/free-minecraft-bedrock-server-hosting_GM479516143.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/coin-master-free-spins-heaven_GM406889139.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/coin-master-free-spins-link-iphone_GM406889139.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/free-script-executor-roblox_GM431946152.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/coin-master-spins-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/minecraft-alt-accounts-free_GM479516143.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/coin-master-gold-cards-hack-english_GM406889139.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/minecraft-server-free-trial_GM479516143.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/minecraft-windows-10-free-with-java_GM479516143.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/free-coin-master-hacks-no-verification-or-survey_GM406889139.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/coin-master-free-spins-link-whatsapp-group_GM406889139.pdfIn PDF document text
    • http://www.travelone.ae/userfiles/files/claim-free-spins-coin-master_GM406889139.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
font_00_sfnt_off00002fb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FB1 23168 bytes
SHA-256: 94aaa149cdb30dda0cdfa839aeba533cb553461a4361b9d6e778ddde6af5b322
font_01_sfnt_off000063e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63E7 18760 bytes
SHA-256: 8333c8018b13bf52e37c7708f338d48787d19e9e4dbaf49a8c1071265ea55d63

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