Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1eb086fb2b11994…

MALICIOUS

PDF

35.4 KB Created: 2021-06-20 07:55:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 70098c594fa90c50de6fce09c719a401 SHA-1: dab8541436d8989166d39ada818002926f15ef7b SHA-256: a1eb086fb2b11994798584962d9fe515f0588f842af285950e1249cc3605b5e6
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.co/app/431946152/robuxian-robux-hack-2021-game-hack PDF link annotation
    • https://mawaridschools.com/uploaded_files/userfiles/files/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • https://mawaridschools.com/uploaded_files/userfiles/files/minecraft-hacked-client-18_GM479516143.pdfIn PDF document text
    • https://mawaridschools.com/uploaded_files/userfiles/files/pokemon-go-free-0-iv_GM1094591345.pdfIn PDF document text
    • https://mawaridschools.com/uploaded_files/userfiles/files/free-spin-and-win-coin-master_GM406889139.pdfIn PDF document text
    • https://mawaridschools.com/uploaded_files/userfiles/files/how-to-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://mawaridschools.com/uploaded_files/userfiles/files/is-minecraft-earth-free_GM479516143.pdfIn PDF document text
    • https://mawaridschools.com/uploaded_files/userfiles/files/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
    • https://mawaridschools.com/uploaded_files/userfiles/files/admin-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://mawaridschools.com/uploaded_files/userfiles/files/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • https://mawaridschools.com/uploaded_files/userfiles/files/coin-master-hack-generator-tool_GM406889139.pdfIn PDF document text
    • https://mawaridschools.com/uploaded_files/userfiles/files/teach-me-to-hack_GM431946152.pdfIn PDF document text
    • https://mawaridschools.com/uploaded_files/userfiles/files/free-coins-for-coin-master-blogger_GM406889139.pdfIn PDF document text
    • https://mawaridschools.com/uploaded_files/userfiles/files/free-online-minecraft-server_GM479516143.pdfIn PDF document text
    • https://mawaridschools.com/uploaded_files/userfiles/files/hack-the-coin-master_GM406889139.pdfIn PDF document text
    • https://mawaridschools.com/uploaded_files/userfiles/files/is-minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • https://mawaridschools.com/uploaded_files/userfiles/files/minecraft-free-apk-java-edition_GM479516143.pdfIn PDF document text
    • https://mawaridschools.com/uploaded_files/userfiles/files/how-to-get-any-car-free-in-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://mawaridschools.com/uploaded_files/userfiles/files/free-spins-coin-master-links-blogspot_GM406889139.pdfIn PDF document text
    • https://mawaridschools.com/uploaded_files/userfiles/files/coin-master-400-spin-link_GM406889139.pdfIn PDF document text
    • https://mawaridschools.com/uploaded_files/userfiles/files/free-robux-hack-no-human-verification-or-survey_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
font_00_sfnt_off0000331b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x331B 22392 bytes
SHA-256: e37f996518daf59d520707444bb6caa1af41da7fd2b11f62993f7eda9a91cba4
font_01_sfnt_off000064dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64DD 19244 bytes
SHA-256: 45c952350f5b149aaf3f095e043d4c85ccbbc1e6af42f1822ab48d7f3347815c

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