Malicious PDF — malware analysis report

Static analysis result for SHA-256 2884f87ad4a6f77a…

MALICIOUS

PDF

34.9 KB Created: 2021-06-22 01:22:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 4431000005301904031193416466923a SHA-1: 145e68e8d77b0cda9104fdd9b089982ccf3419a2 SHA-256: 2884f87ad4a6f77a00f5cd2dda602f443837f75cddb0bcfea88c6bf0c71266c4
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/free-robux-websites-2021-game-hack PDF link annotation
    • https://e-learning.mansapa.sch.id/__statics/gudangsoal/files/minecraft-free-apk-java-edition_GM479516143.pdfIn PDF document text
    • https://e-learning.mansapa.sch.id/__statics/gudangsoal/files/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://e-learning.mansapa.sch.id/__statics/gudangsoal/files/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://e-learning.mansapa.sch.id/__statics/gudangsoal/files/free-roblox-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.mansapa.sch.id/__statics/gudangsoal/files/free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • https://e-learning.mansapa.sch.id/__statics/gudangsoal/files/free-coin-spin_GM406889139.pdfIn PDF document text
    • https://e-learning.mansapa.sch.id/__statics/gudangsoal/files/fart-attack-roblox-hack_GM431946152.pdfIn PDF document text
    • https://e-learning.mansapa.sch.id/__statics/gudangsoal/files/robux-survey_GM431946152.pdfIn PDF document text
    • https://e-learning.mansapa.sch.id/__statics/gudangsoal/files/free-minecraft-skins-pc_GM479516143.pdfIn PDF document text
    • https://e-learning.mansapa.sch.id/__statics/gudangsoal/files/boost9-com-roblox-hack_GM431946152.pdfIn PDF document text
    • https://e-learning.mansapa.sch.id/__statics/gudangsoal/files/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • https://e-learning.mansapa.sch.id/__statics/gudangsoal/files/roblox-gui-hacks_GM431946152.pdfIn PDF document text
    • https://e-learning.mansapa.sch.id/__statics/gudangsoal/files/coin-master-gold-cards-free-2021_GM406889139.pdfIn PDF document text
    • https://e-learning.mansapa.sch.id/__statics/gudangsoal/files/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • https://e-learning.mansapa.sch.id/__statics/gudangsoal/files/hack-jailbreak-2021-roblox_GM431946152.pdfIn PDF document text
    • https://e-learning.mansapa.sch.id/__statics/gudangsoal/files/tiktok-free-likes-net_GM835599320.pdfIn PDF document text
    • https://e-learning.mansapa.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://e-learning.mansapa.sch.id/__statics/gudangsoal/files/free-robux-no-survey_GM431946152.pdfIn PDF document text
    • https://e-learning.mansapa.sch.id/__statics/gudangsoal/files/roblox-csgo-free-skins_GM431946152.pdfIn PDF document text
    • https://e-learning.mansapa.sch.id/__statics/gudangsoal/files/coin-master-rare-cards-hack_GM406889139.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
font_00_sfnt_off00002f94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F94 22504 bytes
SHA-256: 976b6531be92bd04b3ae67762c40a07504f1b56550008521244648a866ed1c6f
font_01_sfnt_off00006182.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6182 19540 bytes
SHA-256: 7dbc8426627c63cb62956a50d2295124057d24afa4e6276b198320b3de5f5879

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